MFS VARIABLE INSURANCE TRUST
NSAR-B, 1999-02-25
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<PAGE>      PAGE  1
000 B000000 12/31/1998
000 C000000 0000918571
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 6.1
000 J000000 A
001 A000000 MFS VARIABLE INSURANCE TRUST
001 B000000 811-8326
001 C000000 6179545000
002 A000000 500 BOYLSTON STREET
002 B000000 BOSTON
002 C000000 MA
002 D010000 02116
003  000000 N
004  000000 N
005  000000 N
006  000000 N
007 A000000 Y
007 B000000 13
007 C010100  1
007 C020100 MFS WORLD GOVERNMENTS SERIES
007 C030100 N
007 C010200  2
007 C020200 MFS TOTAL RETURN SERIES
007 C030200 N
007 C010300  3
007 C020300 MFS UTILITIES SERIES
007 C030300 N
007 C010400  4
007 C020400 MFS MONEY MARKET SERIES
007 C030400 N
007 C010500  5
007 C020500 MFS GROWTH WITH INCOME SERIES
007 C030500 N
007 C010600  6
007 C020600 MFS VALUE SERIES
007 C030600 N
007 C010700  7
007 C020700 MFS EMERGING GROWTH SERIES
007 C030700 N
007 C010800  8
007 C020800 MFS LIMITED MATURITY SERIES
007 C030800 N
007 C010900  9
007 C020900 MFS BOND SERIES
007 C030900 N
007 C011000 10
007 C021000 MFS FOREIGN & COLONIAL EMERGING MARKETS EQUIT
<PAGE>      PAGE  2
007 C031000 N
007 C011100 11
007 C021100 MFS HIGH INCOME SERIES
007 C031100 N
007 C011200 12
007 C021200 MFS RESEARCH SERIES
007 C031200 N
007 C011300 13
007 C021300 MFS NEW DISCOVERY SERIES
007 C031300 N
007 C011400 14
007 C011500 15
007 C011600 16
007 C011700 17
007 C011800 18
007 C011900 19
007 C012000 20
008 A00AA01 MASSACHUSETTS FINANCIAL SERVICES COMPANY
008 B00AA01 A
008 C00AA01 801-17352
008 D01AA01 BOSTON
008 D02AA01 MA
008 D03AA01 02116
008 A00AA02 FOREIGN & COLONIAL MANAGEMENT LTD.
008 B00AA02 S
008 C00AA02 801-000000
008 D01AA02 LONDON
008 D05AA02 ENGLAND
008 D06AA02 EC2A 2NY
010 A00AA01 MASSACHUSETTS FINANCIAL SERVICES COMPANY
010 B00AA01 801-17352
010 C01AA01 BOSTON
010 C02AA01 MA
010 C03AA01 02116
011 A00AA01 MFS FUNDS DISTRIBUTORS, INC.
011 B00AA01 8-27864
011 C01AA01 BOSTON
011 C02AA01 MA
011 C03AA01 02116
012 A00AA01 MFS SERVICE CENTER, INC.
012 B00AA01 84-1316
012 C01AA01 BOSTON
012 C02AA01 MA
012 C03AA01 02116
013 A00AA01 DELOITTE & TOUCHE LLP
013 B01AA01 BOSTON
013 B02AA01 MA
013 B03AA01 02110
015 A00AA01 STATE STREET BANK AND TRUST COMPANY
015 B00AA01 C
015 C01AA01 BOSTON
<PAGE>      PAGE  3
015 C02AA01 MA
015 C03AA01 02111
015 E01AA01 X
015 A00AA02 BANK OF NEW YORK
015 B00AA02 S
015 C01AA02 NEW YORK
015 C02AA02 NY
015 C03AA02 10286
015 E01AA02 X
015 A00AA03 CHASE MANHATTAN BANK, N.A.
015 B00AA03 S
015 C01AA03 NEW YORK
015 C02AA03 NY
015 C03AA03 10081
015 E04AA03 X
018  00AA00 Y
019 A00AA00 N
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020 A000001 MERRILL LYNCH
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020 A000002 PAINE WEBBER
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020 C000002    229
020 A000003 MORGAN STANLEY
020 B000003 13-2655998
020 C000003    178
020 A000004 SMITH BARNEY
020 B000004 13-1912900
020 C000004    118
020 A000005 WEEDEN & CO
020 B000005 13-3364318
020 C000005    108
020 A000006 BERNSTEIN (SANFORD) & CO.
020 B000006 13-2625874
020 C000006     90
020 A000007 GOLDMAN SACHS
020 B000007 13-5108880
020 C000007     89
020 A000008 CS FIRST BOSTON
020 B000008 13-5659485
020 C000008     86
020 A000009 DONALDSON, LUFKIN & JENRETTE
020 B000009 13-2741729
020 C000009     81
020 A000010 DRESDNER SECURITIES
020 B000010 00-0000000
020 C000010     79
021  000000     2761
022 A000001 CARROL MCENTEE
022 B000001 13-2650270
<PAGE>      PAGE  4
022 C000001   1813478
022 D000001     65546
022 A000002 PRUDENTIAL SECURITIES
022 B000002 22-2347336
022 C000002   1797231
022 D000002     16701
022 A000003 NATIONS BANK
022 B000003 75-0520130
022 C000003   1595116
022 D000003     10658
022 A000004 CS FIRST BOSTON
022 B000004 13-5659485
022 C000004   1029326
022 D000004     54698
022 A000005 BANK OF BOSTON
022 B000005 00-0000000
022 C000005    877964
022 D000005     10256
022 A000006 CHASE MANHATTAN
022 B000006 13-3112953
022 C000006    849055
022 D000006      3253
022 A000007 MERRILL LYNCH
022 B000007 13-5674085
022 C000007    471067
022 D000007     64882
022 A000008 GOLDMAN SACHS
022 B000008 13-5108880
022 C000008    308702
022 D000008     30787
022 A000009 BANK OF AMERICA
022 B000009 94-1687665
022 C000009    310024
022 D000009       749
022 A000010 GENERAL ELECTRIC CO.
022 B000010 00-0000000
022 C000010     96808
022 D000010         0
023 C000000   10345312
023 D000000     619444
026 A000000 N
026 B000000 Y
026 C000000 N
026 D000000 Y
026 E000000 N
026 F000000 N
026 G010000 N
026 G020000 N
026 H000000 N
027  000000 Y
029  00AA00 N
<PAGE>      PAGE  5
030 A00AA00      0
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030 C00AA00  0.00
031 A00AA00      0
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034  00AA00 N
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036 B00AA00      0
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054 A00AA00 Y
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054 F00AA00 N
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077 A000000 Y
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080 A00AA00 NATIONAL UNION INSURANCE CO.
080 B00AA00 ICI MUTUAL
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081 B00AA00 131
082 A00AA00 Y
<PAGE>      PAGE  6
082 B00AA00      100
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024  000100 N
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<PAGE>      PAGE  7
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049  000100 N
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<PAGE>      PAGE  8
062 C000100  13.1
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062 N000100   7.7
062 O000100   0.0
062 P000100   8.4
062 Q000100  33.8
062 R000100   0.0
063 A000100   0
063 B000100  9.8
064 A000100 N
064 B000100 N
066 A000100 N
067  000100 N
068 A000100 N
068 B000100 N
069  000100 N
070 A010100 Y
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070 C020100 Y
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070 E020100 N
070 F010100 N
070 F020100 N
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070 H020100 N
070 I010100 N
070 I020100 N
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070 J020100 Y
070 K010100 Y
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070 M020100 Y
<PAGE>      PAGE  9
070 N010100 Y
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070 P010100 Y
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070 Q020100 N
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070 R020100 N
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<PAGE>      PAGE  10
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024  000200 Y
025 A000201 DONALDSON, LUFKIN & JENRETTE
025 B000201 13-2741729
025 C000201 D
025 D000201      36
025 A000202 GOLDMAN SACHS GROUP LP
025 B000202 13-5108880
025 C000202 D
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<PAGE>      PAGE  11
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<PAGE>      PAGE  12
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<PAGE>      PAGE  13
068 B000200 N
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<PAGE>      PAGE  14
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<PAGE>      PAGE  15
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<PAGE>      PAGE  16
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<PAGE>      PAGE  18
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<PAGE>      PAGE  20
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<PAGE>      PAGE  21
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<PAGE>      PAGE  27
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028 D010800        86
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028 D030800         0
028 D040800        16
028 E010800       270
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028 E030800         0
028 E040800       184
028 F010800       216
028 F020800        66
028 F030800         0
028 F040800       114
<PAGE>      PAGE  38
028 G010800       977
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045  000800 Y
046  000800 N
047  000800 Y
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048 A020800 0.000
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048 B020800 0.000
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048 D010800        0
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048 E020800 0.000
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048 F020800 0.000
048 G010800        0
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048 H010800        0
048 H020800 0.000
048 I010800        0
048 I020800 0.000
048 J010800        0
048 J020800 0.000
048 K010800        0
048 K020800 0.000
049  000800 N
050  000800 N
051  000800 N
052  000800 N
053 A000800 Y
053 B000800 Y
053 C000800 Y
055 A000800 Y
055 B000800 N
056  000800 Y
057  000800 N
058 A000800 N
059  000800 Y
060 A000800 Y
060 B000800 Y
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062 A000800 Y
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<PAGE>      PAGE  39
062 E000800   0.0
062 F000800   0.0
062 G000800   0.0
062 H000800   0.0
062 I000800   0.0
062 J000800   0.0
062 K000800   0.0
062 L000800   0.0
062 M000800  27.6
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062 P000800  46.2
062 Q000800   4.6
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063 A000800   0
063 B000800  4.8
064 A000800 N
064 B000800 N
066 A000800 N
067  000800 N
068 A000800 N
068 B000800 N
069  000800 N
070 A010800 Y
070 A020800 N
070 B010800 Y
070 B020800 N
070 C010800 Y
070 C020800 N
070 D010800 Y
070 D020800 N
070 E010800 N
070 E020800 N
070 F010800 Y
070 F020800 N
070 G010800 N
070 G020800 N
070 H010800 Y
070 H020800 N
070 I010800 N
070 I020800 N
070 J010800 Y
070 J020800 Y
070 K010800 Y
070 K020800 N
070 L010800 Y
070 L020800 Y
070 M010800 Y
070 M020800 Y
070 N010800 Y
070 N020800 N
<PAGE>      PAGE  40
070 O010800 Y
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070 P010800 Y
070 P020800 N
070 Q010800 N
070 Q020800 N
070 R010800 N
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<PAGE>      PAGE  41
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074 U010800      180
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074 V010800    10.16
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025 D000908       0
028 A010900      1356
028 A020900         0
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<PAGE>      PAGE  42
028 B010900      1225
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045  000900 Y
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048 H020900 0.000
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048 I020900 0.000
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048 J020900 0.000
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048 K020900 0.000
<PAGE>      PAGE  43
049  000900 N
050  000900 N
051  000900 N
052  000900 N
053 A000900 Y
053 B000900 Y
053 C000900 Y
055 A000900 Y
055 B000900 N
056  000900 Y
057  000900 N
058 A000900 N
059  000900 Y
060 A000900 Y
060 B000900 Y
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062 E000900   0.0
062 F000900   0.0
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062 I000900   0.0
062 J000900   0.0
062 K000900   0.0
062 L000900   0.0
062 M000900  18.9
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062 O000900   0.0
062 P000900  67.3
062 Q000900   4.5
062 R000900   0.0
063 A000900   0
063 B000900 15.4
064 A000900 N
064 B000900 N
066 A000900 N
067  000900 N
068 A000900 N
068 B000900 N
069  000900 N
070 A010900 Y
070 A020900 N
070 B010900 Y
070 B020900 N
070 C010900 Y
070 C020900 N
070 D010900 N
070 D020900 N
<PAGE>      PAGE  44
070 E010900 Y
070 E020900 N
070 F010900 N
070 F020900 N
070 G010900 Y
070 G020900 N
070 H010900 N
070 H020900 N
070 I010900 N
070 I020900 N
070 J010900 Y
070 J020900 Y
070 K010900 Y
070 K020900 N
070 L010900 Y
070 L020900 Y
070 M010900 Y
070 M020900 Y
070 N010900 Y
070 N020900 N
070 O010900 Y
070 O020900 Y
070 P010900 Y
070 P020900 N
070 Q010900 N
070 Q020900 N
070 R010900 N
070 R020900 N
071 A000900     25761
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<PAGE>      PAGE  45
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073 A010900   0.2900
073 A020900   0.0000
073 B000900   0.1400
073 C000900   0.0000
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074 C000900        0
074 D000900    12054
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074 F000900        0
074 G000900        0
074 H000900        0
074 I000900        0
074 J000900      104
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074 M000900        3
074 N000900    12385
074 O000900        0
074 P000900        0
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074 R010900        0
074 R020900        0
074 R030900        0
074 R040900      220
074 S000900        0
074 T000900    12165
074 U010900     1068
074 U020900        0
074 V010900    11.38
074 V020900     0.00
074 W000900   0.0000
074 X000900       16
074 Y000900        0
075 A000900        0
075 B000900     7359
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<PAGE>      PAGE  46
024  001000 N
025 D001001       0
025 D001002       0
025 D001003       0
025 D001004       0
025 D001005       0
025 D001006       0
025 D001007       0
025 D001008       0
028 A011000       438
028 A021000         0
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028 A041000       417
028 B011000        93
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028 B031000         0
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028 G041000       741
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045  001000 Y
046  001000 N
047  001000 Y
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048 B021000 0.000
048 C011000        0
048 C021000 0.000
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<PAGE>      PAGE  47
048 E021000 0.000
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048 H021000 0.000
048 I011000        0
048 I021000 0.000
048 J011000        0
048 J021000 0.000
048 K011000        0
048 K021000 0.000
049  001000 N
050  001000 N
051  001000 N
052  001000 N
053 A001000 Y
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053 C001000 Y
055 A001000 Y
055 B001000 N
056  001000 Y
057  001000 N
058 A001000 N
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060 A001000 Y
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066 A001000 Y
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<PAGE>      PAGE  48
066 C001000 Y
066 D001000 N
066 E001000 N
066 F001000 N
066 G001000 N
067  001000 N
068 A001000 N
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070 A011000 Y
070 A021000 N
070 B011000 Y
070 B021000 N
070 C011000 Y
070 C021000 N
070 D011000 N
070 D021000 N
070 E011000 Y
070 E021000 N
070 F011000 N
070 F021000 N
070 G011000 Y
070 G021000 N
070 H011000 N
070 H021000 N
070 I011000 N
070 I021000 N
070 J011000 Y
070 J021000 Y
070 K011000 Y
070 K021000 N
070 L011000 Y
070 L021000 Y
070 M011000 Y
070 M021000 Y
070 N011000 Y
070 N021000 N
070 O011000 Y
070 O021000 N
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072 A001000 12
072 B001000        9
<PAGE>      PAGE  49
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072 Y001000       27
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073 B001000   0.0000
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074 A001000        4
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074 D001000        0
074 E001000        0
074 F001000     1276
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074 H001000        0
074 I001000        0
074 J001000        0
074 K001000        3
074 L001000        3
074 M001000       20
074 N001000     1426
074 O001000        0
074 P001000        0
<PAGE>      PAGE  50
074 Q001000        0
074 R011000        0
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074 U021000        0
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074 X001000        8
074 Y001000        0
075 A001000        0
075 B001000     1532
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024  001100 N
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028 A011100      2736
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028 D041100      2158
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028 E041100       840
028 F011100      5658
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028 F041100      5417
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<PAGE>      PAGE  51
028 G021100         0
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045  001100 Y
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049  001100 N
050  001100 N
051  001100 N
052  001100 N
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<PAGE>      PAGE  52
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065  001100 N
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070 A011100 Y
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070 I021100 N
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070 J021100 Y
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070 M021100 Y
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<PAGE>      PAGE  53
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<PAGE>      PAGE  54
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<PAGE>      PAGE  55
028 B011200     23129
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<PAGE>      PAGE  56
049  001200 N
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066 F001200 N
066 G001200 N
067  001200 N
068 A001200 N
068 B001200 N
069  001200 N
070 A011200 Y
070 A021200 N
070 B011200 N
070 B021200 N
<PAGE>      PAGE  57
070 C011200 N
070 C021200 N
070 D011200 N
070 D021200 N
070 E011200 N
070 E021200 N
070 F011200 N
070 F021200 N
070 G011200 N
070 G021200 N
070 H011200 N
070 H021200 N
070 I011200 N
070 I021200 N
070 J011200 Y
070 J021200 Y
070 K011200 Y
070 K021200 N
070 L011200 Y
070 L021200 Y
070 M011200 Y
070 M021200 Y
070 N011200 Y
070 N021200 N
070 O011200 Y
070 O021200 Y
070 P011200 Y
070 P021200 N
070 Q011200 N
070 Q021200 N
070 R011200 N
070 R021200 N
071 A001200    511037
071 B001200    325019
071 C001200    393441
071 D001200   83
072 A001200 12
072 B001200      946
072 C001200     3972
072 D001200        0
072 E001200      -73
072 F001200     3066
072 G001200       48
072 H001200        0
072 I001200      143
072 J001200      147
072 K001200        0
072 L001200       90
072 M001200        2
072 N001200        0
072 O001200        0
<PAGE>      PAGE  58
072 P001200        0
072 Q001200        0
072 R001200        9
072 S001200        2
072 T001200        0
072 U001200        2
072 V001200        0
072 W001200       10
072 X001200     3519
072 Y001200       14
072 Z001200     1340
072AA001200     5908
072BB001200        0
072CC011200    78553
072CC021200        0
072DD011200      588
072DD021200        0
072EE001200     7710
073 A011200   0.0300
073 A021200   0.0000
073 B001200   0.3700
073 C001200   0.0000
074 A001200       19
074 B001200        0
074 C001200    24271
074 D001200        0
074 E001200        0
074 F001200   548309
074 G001200        0
074 H001200        0
074 I001200        0
074 J001200     2371
074 K001200        0
074 L001200     1523
074 M001200        5
074 N001200   576498
074 O001200     8362
074 P001200       12
074 Q001200        0
074 R011200        0
074 R021200        0
074 R031200        0
074 R041200      346
074 S001200        0
074 T001200   567778
074 U011200    29806
074 U021200        0
074 V011200    19.05
074 V021200     0.00
074 W001200   0.0000
074 X001200       59
<PAGE>      PAGE  59
074 Y001200        0
075 A001200        0
075 B001200   408831
076  001200     0.00
024  001300 N
025 D001301       0
025 D001302       0
025 D001303       0
025 D001304       0
025 D001305       0
025 D001306       0
025 D001307       0
025 D001308       0
028 A011300       344
028 A021300         0
028 A031300         0
028 A041300         0
028 B011300         3
028 B021300         0
028 B031300         0
028 B041300         1
028 C011300         6
028 C021300         0
028 C031300         0
028 C041300         1
028 D011300        22
028 D021300         0
028 D031300         0
028 D041300         1
028 E011300        35
028 E021300         0
028 E031300         0
028 E041300         1
028 F011300        17
028 F021300         0
028 F031300         0
028 F041300         1
028 G011300       427
028 G021300         0
028 G031300         0
028 G041300         5
028 H001300         0
045  001300 Y
046  001300 N
047  001300 Y
048  001300  0.900
048 A011300        0
048 A021300 0.000
048 B011300        0
048 B021300 0.000
048 C011300        0
<PAGE>      PAGE  60
048 C021300 0.000
048 D011300        0
048 D021300 0.000
048 E011300        0
048 E021300 0.000
048 F011300        0
048 F021300 0.000
048 G011300        0
048 G021300 0.000
048 H011300        0
048 H021300 0.000
048 I011300        0
048 I021300 0.000
048 J011300        0
048 J021300 0.000
048 K011300        0
048 K021300 0.000
049  001300 N
050  001300 N
051  001300 N
052  001300 N
053 A001300 Y
053 B001300 Y
053 C001300 Y
055 A001300 N
055 B001300 N
056  001300 Y
057  001300 N
058 A001300 N
059  001300 Y
060 A001300 Y
060 B001300 Y
061  001300        0
062 A001300 N
062 B001300   0.0
062 C001300   0.0
062 D001300   0.0
062 E001300   0.0
062 F001300   0.0
062 G001300   0.0
062 H001300   0.0
062 I001300   0.0
062 J001300   0.0
062 K001300   0.0
062 L001300   0.0
062 M001300   0.0
062 N001300   0.0
062 O001300   0.0
062 P001300   0.0
062 Q001300   0.0
062 R001300   0.0
<PAGE>      PAGE  61
063 A001300   0
063 B001300  0.0
066 A001300 Y
066 B001300 N
066 C001300 Y
066 D001300 N
066 E001300 N
066 F001300 N
066 G001300 N
067  001300 N
068 A001300 N
068 B001300 N
069  001300 N
070 A011300 Y
070 A021300 N
070 B011300 Y
070 B021300 N
070 C011300 Y
070 C021300 N
070 D011300 Y
070 D021300 N
070 E011300 Y
070 E021300 N
070 F011300 Y
070 F021300 N
070 G011300 Y
070 G021300 N
070 H011300 Y
070 H021300 N
070 I011300 Y
070 I021300 N
070 J011300 Y
070 J021300 Y
070 K011300 Y
070 K021300 N
070 L011300 Y
070 L021300 Y
070 M011300 Y
070 M021300 Y
070 N011300 Y
070 N021300 N
070 O011300 Y
070 O021300 N
070 P011300 Y
070 P021300 Y
070 Q011300 Y
070 Q021300 N
070 R011300 Y
070 R021300 Y
071 A001300      2095
071 B001300      1053
<PAGE>      PAGE  62
071 C001300       811
071 D001300  130
072 A001300  8
072 B001300        2
072 C001300        0
072 D001300        0
072 E001300        0
072 F001300        5
072 G001300        0
072 H001300        0
072 I001300        0
072 J001300        2
072 K001300        0
072 L001300        6
072 M001300        1
072 N001300        0
072 O001300        0
072 P001300        0
072 Q001300        0
072 R001300       10
072 S001300        3
072 T001300        0
072 U001300        0
072 V001300        0
072 W001300        1
072 X001300       28
072 Y001300       22
072 Z001300       -4
072AA001300        0
072BB001300       51
072CC011300       94
072CC021300        0
072DD011300        0
072DD021300        0
072EE001300        0
073 A011300   0.0000
073 A021300   0.0000
073 B001300   0.0000
073 C001300   0.0000
074 A001300        8
074 B001300        0
074 C001300       40
074 D001300        0
074 E001300        2
074 F001300     1085
074 G001300        0
074 H001300        0
074 I001300        0
074 J001300       13
074 K001300        0
074 L001300        0
<PAGE>      PAGE  63
074 M001300        0
074 N001300     1148
074 O001300       10
074 P001300        0
074 Q001300        0
074 R011300        0
074 R021300        0
074 R031300        0
074 R041300        0
074 S001300        0
074 T001300     1138
074 U011300      111
074 U021300        0
074 V011300    10.22
074 V021300     0.00
074 W001300   0.0000
074 X001300       16
074 Y001300        0
075 A001300        0
075 B001300      823
076  001300     0.00
SIGNATURE   MARK BRADLEY                                 
TITLE       ASSISTANT TREASURER 
 


<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000918571
<NAME> MFS VARIABLE INSURANCE TRUST
<SERIES>
   <NUMBER> 07
   <NAME> VIT EMERGING GROWTH
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<INVESTMENTS-AT-COST>                        653182375
<INVESTMENTS-AT-VALUE>                       903405019
<RECEIVABLES>                                  8238358
<ASSETS-OTHER>                                    2522
<OTHER-ITEMS-ASSETS>                              8876
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<PAYABLE-FOR-SECURITIES>                        582893
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      2085343
<TOTAL-LIABILITIES>                            2668236
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     675153844
<SHARES-COMMON-STOCK>                         42337316
<SHARES-COMMON-PRIOR>                         23832859
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                    (16389942)
<ACCUM-APPREC-OR-DEPREC>                     250222637
<NET-ASSETS>                                 908986539
<DIVIDEND-INCOME>                              1677369
<INTEREST-INCOME>                              1734113
<OTHER-INCOME>                                 (11235)
<EXPENSES-NET>                               (5209672)
<NET-INVESTMENT-INCOME>                      (1809425)
<REALIZED-GAINS-CURRENT>                    (13218942)
<APPREC-INCREASE-CURRENT>                    205575737
<NET-CHANGE-FROM-OPS>                        190547370
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                     (1542853)
<DISTRIBUTIONS-OTHER>                        (3231782)
<NUMBER-OF-SHARES-SOLD>                       31952822
<NUMBER-OF-SHARES-REDEEMED>                 (13705758)
<SHARES-REINVESTED>                             257393
<NET-CHANGE-IN-ASSETS>                       524506279
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                      1542853
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
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<GROSS-EXPENSE>                                5247186
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<PER-SHARE-NAV-BEGIN>                            16.13
<PER-SHARE-NII>                                 (0.05)
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<PER-SHARE-DIVIDEND>                                 0
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<PER-SHARE-NAV-END>                              21.47
<EXPENSE-RATIO>                                   0.85
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000918571
<NAME> MFS VARIABLE INSURANCE TRUST
<SERIES>
   <NUMBER> 10
   <NAME> MFS FOREIGN & COLONIAL EMERGING MARKETS SERIES
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   Year
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<INVESTMENTS-AT-COST>                          1876774
<INVESTMENTS-AT-VALUE>                         1396387
<RECEIVABLES>                                    24751
<ASSETS-OTHER>                                    4334
<OTHER-ITEMS-ASSETS>                                 9
<TOTAL-ASSETS>                                 1425481
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                         9862
<TOTAL-LIABILITIES>                               9862
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       2242465
<SHARES-COMMON-STOCK>                           239986
<SHARES-COMMON-PRIOR>                           150860
<ACCUMULATED-NII-CURRENT>                        (197)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                       (346027)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                      (480622)
<NET-ASSETS>                                   1415619
<DIVIDEND-INCOME>                                38559
<INTEREST-INCOME>                                 8691
<OTHER-INCOME>                                  (1494)
<EXPENSES-NET>                                   22988
<NET-INVESTMENT-INCOME>                          22768
<REALIZED-GAINS-CURRENT>                      (337126)
<APPREC-INCREASE-CURRENT>                     (338982)
<NET-CHANGE-FROM-OPS>                         (653340)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                      (21980)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                           (1067)
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<NUMBER-OF-SHARES-REDEEMED>                   (143964)
<SHARES-REINVESTED>                               3872
<NET-CHANGE-IN-ASSETS>                           58554
<ACCUMULATED-NII-PRIOR>                            232
<ACCUMULATED-GAINS-PRIOR>                      (10127)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                            19157
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                  49958
<AVERAGE-NET-ASSETS>                           1532347
<PER-SHARE-NAV-BEGIN>                             9.00
<PER-SHARE-NII>                                   0.11
<PER-SHARE-GAIN-APPREC>                         (3.11)
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<PER-SHARE-DISTRIBUTIONS>                       (0.10)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                                5.9
<EXPENSE-RATIO>                                   1.53
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000918571
<NAME> MFS VARIABLE INSURANCE TRUST
<SERIES>
   <NUMBER> 09
   <NAME> MFS BOND SERIES	
<MULTIPLIER> 1
       
<S>                             <C>                     
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<INVESTMENTS-AT-COST>                         11958687
<INVESTMENTS-AT-VALUE>                        12053665
<RECEIVABLES>                                   327544
<ASSETS-OTHER>                                      25
<OTHER-ITEMS-ASSETS>                              3335
<TOTAL-ASSETS>                                12384569
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       220048
<TOTAL-LIABILITIES>                             220048
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                      11617677
<SHARES-COMMON-STOCK>                          1068472
<SHARES-COMMON-PRIOR>                           361236
<ACCUMULATED-NII-CURRENT>                       422665
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                          29276
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         94903
<NET-ASSETS>                                  12164521
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                               497714
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 (73591)
<NET-INVESTMENT-INCOME>                         424123
<REALIZED-GAINS-CURRENT>                         28852
<APPREC-INCREASE-CURRENT>                        37309
<NET-CHANGE-FROM-OPS>                           490284
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                     (139107)
<DISTRIBUTIONS-OF-GAINS>                       (68528)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         890572
<NUMBER-OF-SHARES-REDEEMED>                   (202741)
<SHARES-REINVESTED>                              19405
<NET-CHANGE-IN-ASSETS>                         8160967
<ACCUMULATED-NII-PRIOR>                         138532
<ACCUMULATED-GAINS-PRIOR>                        68069      
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                            44154
<INTEREST-EXPENSE>                                 524
<GROSS-EXPENSE>                                (90756)
<AVERAGE-NET-ASSETS>                           7359073 
<PER-SHARE-NAV-BEGIN>                            11.08
<PER-SHARE-NII>                                   0.64
<PER-SHARE-GAIN-APPREC>                           0.09
<PER-SHARE-DIVIDEND>                            (0.29)
<PER-SHARE-DISTRIBUTIONS>                       (0.14)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              11.38
<EXPENSE-RATIO>                                   1.02
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000918571
<NAME> MFS VARIABLE INSURANCE TRUST
<SERIES>
   <NUMBER> 12
   <NAME> MFS RESEARCH SERIES
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<INVESTMENTS-AT-COST>                        469077629
<INVESTMENTS-AT-VALUE>                       572580360
<RECEIVABLES>                                  3894340
<ASSETS-OTHER>                                    1873
<OTHER-ITEMS-ASSETS>                             21861
<TOTAL-ASSETS>                               576498434
<PAYABLE-FOR-SECURITIES>                       8361946
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       358936
<TOTAL-LIABILITIES>                            8720882
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     458770007
<SHARES-COMMON-STOCK>                         29806071
<SHARES-COMMON-PRIOR>                         18094908
<ACCUMULATED-NII-CURRENT>                      1317410
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        4188027
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                     103502108
<NET-ASSETS>                                 567777552
<DIVIDEND-INCOME>                              3971852
<INTEREST-INCOME>                               945583
<OTHER-INCOME>                                 (72555)
<EXPENSES-NET>                               (3504788)
<NET-INVESTMENT-INCOME>                        1340092
<REALIZED-GAINS-CURRENT>                       5907819
<APPREC-INCREASE-CURRENT>                     78553148
<NET-CHANGE-FROM-OPS>                         85801059
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                     (587939)
<DISTRIBUTIONS-OF-GAINS>                     (7710146)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                       14540832
<NUMBER-OF-SHARES-REDEEMED>                  (3301687)
<SHARES-REINVESTED>                             472018
<NET-CHANGE-IN-ASSETS>                       281932693
<ACCUMULATED-NII-PRIOR>                         581473
<ACCUMULATED-GAINS-PRIOR>                      5974138
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          3066232
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                3519078
<AVERAGE-NET-ASSETS>                         408830937
<PER-SHARE-NAV-BEGIN>                            15.80
<PER-SHARE-NII>                                   0.06
<PER-SHARE-GAIN-APPREC>                           3.59
<PER-SHARE-DIVIDEND>                            (0.03)
<PER-SHARE-DISTRIBUTIONS>                       (0.37)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              19.05
<EXPENSE-RATIO>                                   0.86
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000918571
<NAME> MFS VARIABLE INSURANCE TRUST
<SERIES>
   <NUMBER> 05
   <NAME> MFS GROWTH WITH INCOME SERIES
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<INVESTMENTS-AT-COST>                        212342969
<INVESTMENTS-AT-VALUE>                       244205237
<RECEIVABLES>                                  1018780
<ASSETS-OTHER>                                     458
<OTHER-ITEMS-ASSETS>                             15953
<TOTAL-ASSETS>                               245240428
<PAYABLE-FOR-SECURITIES>                        361877
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       568284
<TOTAL-LIABILITIES>                             930161
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     210795582
<SHARES-COMMON-STOCK>                         12146049
<SHARES-COMMON-PRIOR>                          3530696
<ACCUMULATED-NII-CURRENT>                      1005549
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                         646503
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                      31862633
<NET-ASSETS>                                 244310267
<DIVIDEND-INCOME>                              1856517
<INTEREST-INCOME>                               478388
<OTHER-INCOME>                                 (17880)
<EXPENSES-NET>                               (1308672)
<NET-INVESTMENT-INCOME>                        1008353
<REALIZED-GAINS-CURRENT>                        781320
<APPREC-INCREASE-CURRENT>                     26597781
<NET-CHANGE-FROM-OPS>                         28387454
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                       10781895
<NUMBER-OF-SHARES-REDEEMED>                  (2166542)
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                       186265197
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                    (156143)
<GROSS-ADVISORY-FEES>                          1040559
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                1227202
<AVERAGE-NET-ASSETS>                         138741207
<PER-SHARE-NAV-BEGIN>                            16.44
<PER-SHARE-NII>                                   0.13
<PER-SHARE-GAIN-APPREC>                           3.54
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              20.11
<EXPENSE-RATIO>                                   0.95
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000918571
<NAME> MFS VARIABLE INSURANCE TRUST
<SERIES>
   <NUMBER> 11
   <NAME> MFS HIGH INCOME SERIES
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<INVESTMENTS-AT-COST>                         43795785
<INVESTMENTS-AT-VALUE>                        41628480
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<PAYABLE-FOR-SECURITIES>                        487225
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<REALIZED-GAINS-CURRENT>                      (260575)
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<NUMBER-OF-SHARES-REDEEMED>                  (2623755)
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000918571
<NAME> MFS VARIABLE INSURANCE TRUST
<SERIES>
   <NUMBER> 08
   <NAME> MFS LIMITED MATURITY SERIES
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   Year
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<INVESTMENTS-AT-COST>                          1809257
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<SHARES-COMMON-PRIOR>                            70001
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<NUMBER-OF-SHARES-REDEEMED>                    (84291)
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<OVERDISTRIB-NII-PRIOR>                            (9)
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000918571
<NAME> MFS VARIABLE INSURANCE TRUST
<SERIES>
   <NUMBER> 04
   <NAME> MFS MONEY MARKET SERIES
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<INVESTMENTS-AT-COST>                         11363102
<INVESTMENTS-AT-VALUE>                        11363102
<RECEIVABLES>                                   210843
<ASSETS-OTHER>                                      57
<OTHER-ITEMS-ASSETS>                              5379
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<PAYABLE-FOR-SECURITIES>                             0
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<OTHER-ITEMS-LIABILITIES>                        10749
<TOTAL-LIABILITIES>                              10749
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                      11568632
<SHARES-COMMON-STOCK>                         11568632
<SHARES-COMMON-PRIOR>                          8755432
<ACCUMULATED-NII-CURRENT>                            0
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<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                             0
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<DIVIDEND-INCOME>                                    0
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<NET-INVESTMENT-INCOME>                         430322
<REALIZED-GAINS-CURRENT>                             0
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<NET-CHANGE-FROM-OPS>                           430322
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                     (430322)
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<NUMBER-OF-SHARES-SOLD>                       13129805
<NUMBER-OF-SHARES-REDEEMED>                 (10747102)
<SHARES-REINVESTED>                             430497
<NET-CHANGE-IN-ASSETS>                         2813200
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
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<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                  87006
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<PER-SHARE-NAV-BEGIN>                             1.00
<PER-SHARE-NII>                                   0.05
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<EXPENSE-RATIO>                                   0.62
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000918571
<NAME> MFS VARIABLE INSURANCE TRUST
<SERIES>
   <NUMBER> 13
   <NAME> MFS NEW DISCOVERY SERIES
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR	
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             MAY-01-1998
<PERIOD-END>                               DEC-31-1998
<INVESTMENTS-AT-COST>                          1032311
<INVESTMENTS-AT-VALUE>                         1126785
<RECEIVABLES>                                    13173
<ASSETS-OTHER>                                       0
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<TOTAL-ASSETS>                                 1148145
<PAYABLE-FOR-SECURITIES>                          9830
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                           35
<TOTAL-LIABILITIES>                               9865
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       1098684
<SHARES-COMMON-STOCK>                           111350
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0    
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                       (54879)
<ACCUM-APPREC-OR-DEPREC>                         94475
<NET-ASSETS>                                   1138280
<DIVIDEND-INCOME>                                  574
<INTEREST-INCOME>                                 1655
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<EXPENSES-NET>                                  (6252)
<NET-INVESTMENT-INCOME>                         (4026)
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<APPREC-INCREASE-CURRENT>                        94475
<NET-CHANGE-FROM-OPS>                            39596
<EQUALIZATION>                                       0
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<NUMBER-OF-SHARES-SOLD>                         112023
<NUMBER-OF-SHARES-REDEEMED>                      (673)
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                         1138280
<ACCUMULATED-NII-PRIOR>                              0
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<OVERDISTRIB-NII-PRIOR>                              0
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<GROSS-EXPENSE>                                  28364
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<PER-SHARE-NAV-BEGIN>                            10.00
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<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000918571
<NAME> MFS VARIABLE INSURANCE TRUST
<SERIES>
   <NUMBER> 02
   <NAME> MFS TOTAL RETURN SERIES
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<INVESTMENTS-AT-COST>                        160473927
<INVESTMENTS-AT-VALUE>                       170196745
<RECEIVABLES>                                  5550656
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<TOTAL-ASSETS>                               175770730
<PAYABLE-FOR-SECURITIES>                       4546379
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        42552
<TOTAL-LIABILITIES>                            4588931
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     151043279
<SHARES-COMMON-STOCK>                          9444821
<SHARES-COMMON-PRIOR>                          4546608
<ACCUMULATED-NII-CURRENT>                      3676287
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        6739430
<OVERDISTRIBUTION-GAINS>                             0
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<NET-ASSETS>                                 171181799
<DIVIDEND-INCOME>                              1512461
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<NET-INVESTMENT-INCOME>                        3682274
<REALIZED-GAINS-CURRENT>                       6764978
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<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                    (1465065)
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<NUMBER-OF-SHARES-REDEEMED>                   (799224)
<SHARES-REINVESTED>                             186754
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<ACCUMULATED-NII-PRIOR>                        1445727
<ACCUMULATED-GAINS-PRIOR>                      1696397
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000918571
<NAME> MFS VARIABLE INSURANCE TRUST
<SERIES>
   <NUMBER> 030
   <NAME> MFS UTILITIES SERIES
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR		
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<INVESTMENTS-AT-COST>                         75523504
<INVESTMENTS-AT-VALUE>                        80209505
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<NET-INVESTMENT-INCOME>                        1283044
<REALIZED-GAINS-CURRENT>                       6049822
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000918571
<NAME> MFS VARIABLE INSURANCE TRUST
<SERIES>
   <NUMBER> 06
   <NAME> MFS VALUE SERIES
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<INVESTMENTS-AT-COST>                         20289740
<INVESTMENTS-AT-VALUE>                        23705621
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000918571
<NAME> MFS VARIABLE INSURANCE TRUST
<SERIES>
   <NUMBER> 01
   <NAME> MFS WORLD GOVERNMENTS SERIES
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   Year
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<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
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