<PAGE>
-------------------------
UNITED STATES OMB APPROVAL
SECURITIES AND EXCHANGE COMMISSION OMB Number: 3235-0456
Washington, D.C. 20549 Expires: August 31, 2000
Estimated average burden
FORM 24F-2 hours per response .....1
ANNUAL NOTICE OF SECURITIES SOLD -------------------------
PURSUANT TO RULE 24F-2
Read instructions at end of Form before preparing Form.
- --------------------------------------------------------------------------------
1. Name and address of issuer:
MFS Variable Insurance Trust
500 Boylston Street
Boston, MA 02116
- --------------------------------------------------------------------------------
2. The name of each series or class of securities for which this Form is
filed (If the Form is being filed for all series and classes of the
issuer, check the box but do not list series or classes): [X]
- --------------------------------------------------------------------------------
3. Investment Company Act File Number: 811-8326
Securities Act File Number: 33-74668
- --------------------------------------------------------------------------------
4(a). Last day of fiscal year for which this Form is filed: December 31, 1998
- --------------------------------------------------------------------------------
4(b). Check box if this Form is being filed late (i.e., more than 90 calendar
days after the end of the issuer's fiscal year). (See Instruction A.2)
Note: If the Form is being filed late, interest must be paid on the
registration fee due.
- --------------------------------------------------------------------------------
4(c). Check box if this is the last time the issuer will be filing this Form.
- --------------------------------------------------------------------------------
<PAGE>
- --------------------------------------------------------------------------------
5. Calculation of registration fee:
(i) Aggregate sale price of securities sold during the
fiscal year pursuant to section 24(f): $ 39,630,995
------------
(ii) Aggregate price of securities redeemed or
repurchased during the fiscal year: $ 6,528,420
------------
(iii) Aggregate price of securities redeemed or
repurchased during any prior fiscal year ending no
earlier than October 11, 1995 that were not
previously used to reduce registration fees payable
to the Commission: $ -
------------
(iv) Total available redemption credits [add Items
5(ii) and 5(iii)]: $ 6,528,420
------------
(v) Net sales -if Item 5(i) is greater than Item 5(iv)
[subtract Item 5(iv) from Item 5(i)]: $ 33,102,575
------------
(vi) Redemption credits available for use in future years $ -
--if Item 5(i) is less than item 5(iv) [subtract ------------
Item 5(iv) from Item 5(i)]:
(vii) Multiplier for determining registration fee (See x 0.000278
Instruction C.9): ------------
(viii) Registration fee due [multiply Item 5(v) by = $ 9,202.52
Item 5 (vii)] (enter "0" if no fee is due): ------------
- --------------------------------------------------------------------------------
6. Prepaid Shares
If the response to Item 5(i) was determined by deducting an amount of
securities that were registered under the Securities Act of 1993 pursuant to
rule 24e-2 as in effect before October 11, 1997, then report the amount of
securities (number of shares or other units) deducted here: _______. If
there is a number of shares or other units that were registered pursuant to
rule 24e-2 remaining unsold at the end of the fiscal year for which this
form is filed that are available for use by the issuer in future fiscal
years, then state that number here: ____________.
- --------------------------------------------------------------------------------
7. Interest due - if this Form is being filed more than 90 days after the end
of the issuer's fiscal year (see Instruction D):
+$ -
-----------
- --------------------------------------------------------------------------------
8. Total of the amount of the registration fee due plus any interest due [line
5(viii) plus line 7]:
=$ 9,202.52
-----------
- --------------------------------------------------------------------------------
9. Date the registration fee and any interest payment was sent to the
Commission's lockbox depository:
Method of Delivery March 25, 1999
[X] Wire Transfer
[ ] Mail or other means
- --------------------------------------------------------------------------------
<PAGE>
SIGNATURES
This report has been signed below by the following persons on behalf of the
issuer and in the capacities and on the dates indicated.
By (Signature and Title)* /s/ James F. DesMarais
-----------------------------
James F. DesMarais, Assistant
Secretary Pro tempore
Date March 25, 1999
*Please print the name and the title of the signing
officer below the signature.
