Payment Date: 06/25/99
------------------------------------------------------------
BA MORTGAGE SECURITIES, INC.
Mortgage Pass-Through Certificates, Series 1998-5
BANK OF AMERICA, FSB, MASTER SERVICER
------------------------------------------------------------
<TABLE>
<CAPTION>
Class Information Current Payment Information
----------------------------------------------------------------------------------------------------------------------------------
Beginning Pass Thru Principal Interest Total Principal Interest
Type Class Code Name Cert. Bal. Rate Dist. Amt. Dist. Amt. Dist. Losses Shortfalls
----------------------------------------------------------------------------------------------------------------------------------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C>
Senior IA-1 8,404,848.29 6.750000% 3,486,422.70 47,277.27 3,533,699.97 0.00 0.00
IA-2 137,355,970.00 6.750000% 0.00 772,627.33 772,627.33 0.00 0.00
IA-3 2,500,000.00 6.750000% 0.00 14,062.50 14,062.50 0.00 0.00
IA-4 38,062,479.00 6.750000% 0.00 214,101.44 214,101.44 0.00 0.00
IA-5 89,244,500.13 6.750000% 1,544,369.91 502,000.31 2,046,370.23 0.00 0.00
IA-6 19,926,842.00 7.200000% 0.00 119,561.05 119,561.05 0.00 0.00
IA-7 1,328,457.00 0.000000% 0.00 0.00 0.00 0.00 0.00
IA-8 44,029,314.00 6.750000% 0.00 247,664.89 247,664.89 0.00 0.00
IA-9 4,700,000.00 6.875000% 0.00 26,927.08 26,927.08 0.00 0.00
IA-10 1,950,000.00 6.750000% 0.00 10,968.75 10,968.75 0.00 0.00
IA-11 1,000,000.00 7.500000% 0.00 6,250.00 6,250.00 0.00 0.00
IA-12 87,038.00 0.000000% 0.00 0.00 0.00 0.00 0.00
I-X-1 7,743,843.60 6.750000% 0.00 43,559.12 43,559.12 0.00 0.00
I-X-2 603,075.74 6.750000% 0.00 3,392.30 3,392.30 0.00 0.00
I-PO 264,131.44 0.000000% 247.93 0.00 247.93 0.00 0.00
Residual R-I 0.00 6.750000% 0.00 0.00 0.00 0.00 0.00
----------------------------------------------------------------------------------------------------------------------------------
Subordinate IM 7,537,379.38 6.750000% 6,312.47 42,397.76 48,710.23 0.00 0.00
IB-1 3,371,985.54 6.750000% 2,824.00 18,967.42 21,791.42 0.00 0.00
IB-2 1,586,816.60 6.750000% 1,328.94 8,925.84 10,254.78 0.00 0.00
IB-3 1,388,464.28 6.750000% 1,162.82 7,810.11 8,972.94 0.00 0.00
IB-4 991,759.63 6.750000% 830.59 5,578.65 6,409.24 0.00 0.00
IB-5 991,761.62 6.750000% 830.57 5,578.66 6,409.23 0.00 0.00
----------------------------------------------------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------------------------------------------------
Totals - - 364,721,746.91 - 5,044,329.94 2,097,650.50 7,141,980.44 - -
----------------------------------------------------------------------------------------------------------------------------------
Class Information
--------------------------------------------------------------------------------
Ending Cert. Unpaid
Type Class Code Name Notional Bal. Interest
--------------------------------------------------------------------------------
Senior IA-1 4,918,425.59 0.00
IA-2 137,355,970.00 0.00
IA-3 2,500,000.00 0.00
IA-4 38,062,479.00 0.00
IA-5 87,700,130.21 0.00
IA-6 19,926,842.00 0.00
IA-7 1,328,457.00 0.00
IA-8 44,029,314.00 0.00
IA-9 4,700,000.00 0.00
IA-10 1,950,000.00 0.00
IA-11 1,000,000.00 0.00
IA-12 87,038.00 0.00
I-X-1 7,639,896.70 0.00
I-X-2 602,525.03 0.00
I-PO 263,883.51 0.00
Residual R-I 0.00 0.00
--------------------------------------------------------------------------------
Subordinate IM 7,531,066.91 0.00
IB-1 3,369,161.53 0.00
IB-2 1,585,487.66 0.00
IB-3 1,387,301.46 0.00
IB-4 990,929.05 0.00
IB-5 990,931.05 0.00
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
Totals - - 359,677,416.97 -
--------------------------------------------------------------------------------
</TABLE>
<PAGE>
Payment Date: 06/25/99
------------------------------------------------------------
BA MORTGAGE SECURITIES, INC.
Mortgage Pass-Through Certificates, Series 1998-5
BANK OF AMERICA, FSB, MASTER SERVICER
------------------------------------------------------------
<TABLE>
<CAPTION>
Class Information Current Payment Information
Factors per $1,000
------------------------------------------------------------------------------------------------------------------------
Beginning Pass Thru CUSIP Principal Interest Ending Cert./
Type Class Code Name Cert. Bal.(Face) Rate Numbers Dist. Dist. Notional Bal.
------------------------------------------------------------------------------------------------------------------------
<S> <C> <C> <C> <C> <C> <C> <C> <C>
------------------------------------------------------------------------------------------------------------------------
Senior IA-1 8,404,848.29 6.750000% 055240JQ9 108.054934 1.465268 152.437096
IA-2 137,355,970.00 6.750000% 055240JR7 0.000000 5.625000 1,000.000000
IA-3 2,500,000.00 6.750000% 055240JS5 0.000000 5.625000 1,000.000000
IA-4 38,062,479.00 6.750000% 055240JT3 0.000000 5.625000 1,000.000000
IA-5 89,244,500.13 6.750000% 055240JU0 15.472504 5.029366 878.637043
IA-6 19,926,842.00 7.200000% 055240JV8 0.000000 6.000000 1,000.000000
IA-7 1,328,457.00 0.000000% 055240JW6 0.000000 0.000000 1,000.000000
IA-8 44,029,314.00 6.750000% 055240JX4 0.000000 5.625000 1,000.000000
IA-9 4,700,000.00 6.875000% 055240JY2 0.000000 5.729167 1,000.000000
IA-10 1,950,000.00 6.750000% 055240JZ9 0.000000 5.625000 1,000.000000
IA-11 1,000,000.00 7.500000% 055240KA2 0.000000 6.250000 1,000.000000
IA-12 87,038.00 0.000000% 055240KB0 0.000000 0.000000 1,000.000000
I-X-1 7,743,843.60 6.750000% 055240KC8 0.000000 5.112080 896.614986
I-X-2 603,075.74 6.750000% 055240KD6 0.000000 3.044916 540.824039
I-PO 264,131.44 0.000000% 055240KM6 0.931888 0.000000 991.853099
Residual R-I 0.00 6.750000% 055240KH7 0.000000 0.000000 0.000000
------------------------------------------------------------------------------------------------------------------------
Subordinate IM 7,537,379.38 6.750000% 055240KE4 0.832137 5.589055 992.777598
IB-1 3,371,985.54 6.750000% 055240KF1 0.832137 5.589055 992.777597
IB-2 1,586,816.60 6.750000% 055240KG9 0.832137 5.589055 992.777595
IB-3 1,388,464.28 6.750000% 055240KJ3 0.832137 5.589055 992.777598
IB-4 991,759.63 6.750000% 055240KK0 0.832137 5.589055 992.777597
IB-5 991,761.62 6.750000% 055240KL8 0.832120 5.589055 992.777614
------------------------------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------------------
Totals - - 364,721,746.91 - - - - -
------------------------------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>
------------------------------------------------------------
BA MORTGAGE SECURITIES, INC.
Mortgage Pass-Through Certificates, Series 1998-5
BANK OF AMERICA, FSB, MASTER SERVICER
------------------------------------------------------------
--------------------------------------------------------------------------------
COLLATERAL INFORMATION
--------------------------------------------------------------------------------
Total
-----
Prin balance 13,298,538.81 343,004,355.47 3,374,524.32 359,677,418.60
Loan count 37 1077 10 1124
Avg loan rate 6.866059% 7.402125% 8.205201% 7.39
Prepay amount 576.87 4,737,930.00 356.59 4,738,863.46
--------------------------------------------------------------------------------
FEES AND ADVANCES
--------------------------------------------------------------------------------
Total
-----
master servicing fees 2,723.21 135,732.81 691.01 139,147.03
sub servicer fees 0.00 0.00 0.00 0.00
Monthly
Aggregate advances N/A N/A N/A N/A
Advances this periods 0.00 0.00 0.00 0.00
--------------------------------------------------------------------------------
LOSSES & INSURANCE COVERAGES
--------------------------------------------------------------------------------
Total
-----
Net realized losses (this period) 0.00 0.00 0.00 0.00
Cumulative losses (from Cut-Off) 0.00 0.00 0.00 0.00
Coverage Amounts Total
---------------- -----
Bankruptcy 0.00 0.00 0.00 0.00
Fraud 0.00 3,992,555.00 0.00 3,992,555.00
Special Hazard 3,647,217.49 3,647,217.49 3,647,217.49 10,941,652.46
Aggregate Certificate Information
-----------------------------------------------------------------------------
Class Aggregate Aggregate Aggregate
Type Percentage Prepay Pct. End Cert. Bal.
-----------------------------------------------------------------------------
Senior 95.652726% 100.000000% 348,853,579.86
-----------------------------------------------------------------------------
Junior 4.347274% 0.000000% 15,854,877.66
-----------------------------------------------------------------------------
--------------------------------------------------------------------------------
DELINQUENCY INFORMATION
--------------------------------------------------------------------------------
Period Loan Count Ending Stated Balance
------ ---------- ---------------------
30 to 59 days 0 0.00
60 to 89 days 0 0.00
90 or more 0 0.00
Foreclosure 0 0.00
Totals: 0 0.00
--------------------------------------------------------------------------------
<PAGE>
--------------------------------------------------------------------------------
REO INFORMATION
--------------------------------------------------------------------------------
REO Date Loan Number Ending Stated Balance Book Value
-------- ----------- --------------------- ----------
N/A # 0 N/A
N/A # 0 N/A
N/A # 0 N/A
N/A # 0 N/A
N/A # 0 N/A
N/A # 0 N/A
N/A # 0 N/A
N/A # 0 N/A
Totals: 0 N/A
Current Total Outstanding Balance: 0.00
Current Total Outstanding Number of Loans: 0
<PAGE>
--------------------------------------------------------------------------------
OTHER INFORMATION
--------------------------------------------------------------------------------
Amount/Withdrawal Total/Ending Bal.
----------------- -----------------
Available remittance amount 7,141,980.44 7,141,980.44
Principal remittance amount 5,044,329.94 5,044,329.94
Interest remittance amount 2,097,650.50 2,097,650.50
