SECURITIES AND EXCHANGE COMMISSION

                            Washington, D.C. 20549

                                   FORM 8-K

                                CURRENT REPORT

                    Pursuant to Section 13 or 15(d) of the

                        Securities Exchange Act of 1934

        Date of Report (Date of earliest event reported): March 25, 2003

                                      BOA

                                  (Depositor)

(Issuer in respect of MORTGAGE PASS-THROUGH CERTIFICATES, Series 1999-12 Trust)

                (Exact name of registrant as specified in charter)

North Carolina                333-67267-11                  13-4094909
(State or other               (Commission File No.)         (I.R.S. Employer
    jurisdiction of                                         Identification No.)
    organization)



101 N. Tryon St., Charlotte, NC                             28255
(Address of principal executive offices)                    (Zip Code)


Registrant's Telephone Number, including area code: 704-387-2111

                                 Not Applicable
              (Former name, former address and former fiscal year,
                          if changed since last report)




Item 5.  Other Events

                                      BOA
                       MORTGAGE PASS-THROUGH CERTIFICATES
                              Series 1999-12 Trust

On March 25, 2003, The Bank of New York, as Trustee for BOA, MORTGAGE
PASS-THROUGH CERTIFICATES Series 1999-12 Trust, made a monthly distribution to
Certificate holders of principal and/or interest pursuant to the Pooling and
Servicing Agreement, dated as of November 1, 1999, among BOA as Depositor, BANK
OF AMERICA MORTGAGE SECURITIES, INC., Seller and Master Servicer and The Bank of
New York, as Trustee.

Item 7.  Financial Statements and Exhibits

                    (c) Exhibits

Exhibit No.                               Description

99                  Report to Holders of BOA, MORTGAGE PASS-THROUGH CERTIFICATES
                    Series  1999-12  Trust  relating to the distribution date of
                    March  25, 2003 prepared by The Bank of New York, as Trustee
                    under  the  Pooling  and  Servicing  Agreement  dated  as of
                    November 1, 1999.







                                   SIGNATURES

Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned thereunto duly authorized.

Dated: March 25, 2003


                                      BOA


                          By: /s/ Diane Pickett
                              ------------------------------
                          Name:   Diane Pickett
                                  Vice President
                                  The Bank of New York,
                                  as Trustee







                                 EXHIBIT INDEX



Exhibit


99                  Monthly Remittance Statement dated March 25, 2003


                             Payment Date: 03/25/03


          ------------------------------------------------------------
                   BANK OF AMERICA MORTGAGE SECURITIES, INC.
            MORTGAGE PASS-THROUGH CERTIFICATES, Series 1999-12 Trust
                        Bank of America, NA, as Servicer
          ------------------------------------------------------------



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
- ----------------------------------------------------------------------------------------------------------------------------------
                                                                                             
Senior                  A1                  0.00    7.500000%             0.00          0.00            0.00       0.00       0.00
                        A2                  0.00    7.500000%             0.00          0.00            0.00       0.00       0.00
                        A3                  0.00    7.500000%             0.00          0.00            0.00       0.00       0.00
                        A4                  0.00    7.500000%             0.00          0.00            0.00       0.00       0.00
                        A5                  0.00    7.500000%             0.00          0.00            0.00       0.00       0.00
                        A6         21,302,349.73    7.500000%     4,039,105.52    133,139.69    4,172,245.20       0.00       0.00
                        APO           541,512.94    0.000000%        51,204.72          0.00       51,204.72       0.00       0.00
Residual                AR                  0.00    7.500000%             0.00          0.00            0.00       0.00       0.00
- ----------------------------------------------------------------------------------------------------------------------------------
Subordinate             B1          5,654,785.72    7.500000%         6,243.34     35,342.41       41,585.75       0.00       0.00
                        B2          1,631,392.63    7.500000%         1,801.19     10,196.20       11,997.39       0.00       0.00
                        B3            979,028.87    7.500000%         1,080.93      6,118.93        7,199.86       0.00       0.00
                        B4            653,330.23    7.500000%           721.33      4,083.31        4,804.64       0.00       0.00
                        B5            435,875.94    7.500000%           481.24      2,724.22        3,205.47       0.00       0.00
                        B6            265,786.28    7.500000%           293.45      1,661.16        1,954.61       0.00       0.00
- ----------------------------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------------------------
Totals          -        -         31,464,062.35     -            4,100,931.71    193,265.93    4,294,197.64     -          -
- ----------------------------------------------------------------------------------------------------------------------------------
Class Information

- --------------------------------------------------------------------------------
                                             Ending Cert.          Unpaid
Type             Class Code     Name         Notional Bal.         Interest
- --------------------------------------------------------------------------------
Senior                          A1                  0.00              0.00
                                A2                  0.00              0.00
                                A3                  0.00              0.00
                                A4                  0.00              0.00
                                A5                  0.00              0.00
                                A6         17,263,244.21              0.00
                                APO           490,308.23              0.00
Residual                        AR                  0.00              0.00
- --------------------------------------------------------------------------------
Subordinate                     B1          5,648,542.39              0.00
                                B2          1,629,591.45              0.00
                                B3            977,947.95              0.00
                                B4            652,608.90              0.00
                                B5            435,394.70              0.00
                                B6            265,492.83              0.00
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Totals            -              -         27,363,130.64     -
- --------------------------------------------------------------------------------



                             Payment Date: 03/25/03


          ------------------------------------------------------------
                   BANK OF AMERICA MORTGAGE SECURITIES, INC.
            MORTGAGE PASS-THROUGH CERTIFICATES, Series 1999-12 Trust
                        Bank of America, NA, as Servicer
          ------------------------------------------------------------



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.
- ------------------------------------------------------------------------------------------------------------------------
                                                                            
- ------------------------------------------------------------------------------------------------------------------------
Senior                     A1              0.00     7.500000% 060506KM3     0.000000      0.000000      0.000000
                           A2              0.00     7.500000% 060506KN1     0.000000      0.000000      0.000000
                           A3              0.00     7.500000% 060506KP6     0.000000      0.000000      0.000000
                           A4              0.00     7.500000% 060506KQ4     0.000000      0.000000      0.000000
                           A5              0.00     7.500000% 060506KR2     0.000000      0.000000      0.000000
                           A6     21,302,349.73     7.500000% 060506KS0   179.515801      5.917319    767.255298
                           APO       541,512.94     0.000000% 060506KT8    28.027742      0.000000    268.378246
Residual                   AR              0.00     7.500000% 060506KU5     0.000000      0.000000      0.000000
- ------------------------------------------------------------------------------------------------------------------------
Subordinate                B1      5,654,785.72     7.500000% 060506KV3     1.067055      6.040405    965.397776
                           B2      1,631,392.63     7.500000% 060506KW1     1.067055      6.040405    965.397776
                           B3        979,028.87     7.500000% 060506KX9     1.067055      6.040405    965.397777
                           B4        653,330.23     7.500000% 060506KY7     1.067055      6.040405    965.397780
                           B5        435,875.94     7.500000% 060506KZ4     1.067056      6.040409    965.398442
                           B6        265,786.28     7.500000% 060506LA8     0.651085      3.685675    589.056900
- ------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------
Totals       -             -      31,464,062.35       -            -           -             -           -
- ------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------





          ------------------------------------------------------------
                   BANK OF AMERICA MORTGAGE SECURITIES, INC.
            MORTGAGE PASS-THROUGH CERTIFICATES, Series 1999-12 Trust
                        Bank of America, NA, as Servicer
          ------------------------------------------------------------

- --------------------------------------------------------------------------------
                             COLLATERAL INFORMATION
- --------------------------------------------------------------------------------

                                           Total
                                           -----
Prin balance        27,363,130.75    27,363,130.75
Loan count                     79               79
Avg loan rate           7.833608%             7.83
Prepay amount        4,066,161.78     4,066,161.78

- --------------------------------------------------------------------------------
                                FEES AND ADVANCES
- --------------------------------------------------------------------------------

                                           Total
                                           -----
Master serv fees         6,147.64         6,147.64
Sub servicer fees            0.00             0.00
Trustee fees               117.99           117.99


Agg advances                  N/A              N/A
Adv this period              0.00             0.00

- --------------------------------------------------------------------------------
                          LOSSES & INSURANCE COVERAGES
- --------------------------------------------------------------------------------

                                           Total
                                           -----
Realized losses              0.00             0.00
Cumulative losses      174,498.99       174,498.99

Coverage Amounts                           Total
- ----------------                           -----
Bankruptcy                   0.00             0.00
Fraud                2,250,137.38     2,250,137.38
Special Hazard       1,491,834.88     1,491,834.88


                         Aggregate Certificate Information
   -----------------------------------------------------------------------------
   Class            Aggregate           Aggregate                     Aggregate
   Type            Percentage           Prepay Pct.              End Cert. Bal.
   -----------------------------------------------------------------------------
   Senior           69.448245%           100.000000%             21,843,862.67
   -----------------------------------------------------------------------------
   Junior           30.551755%             0.000000%              9,609,578.21
   -----------------------------------------------------------------------------

- --------------------------------------------------------------------------------
                          DELINQUENCY INFORMATION
- --------------------------------------------------------------------------------
Period                             Loan Count    Ending Stated Balance
- ------                             ----------    ---------------------
30 to 59 days                           1                   264,196.10
60 to 89 days                           1                   297,467.32
90 or more                              1                   465,078.16
Foreclosure                             2                   527,864.40

Totals:                                 5                 1,554,605.98
- --------------------------------------------------------------------------------



- --------------------------------------------------------------------------------
                                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




- --------------------------------------------------------------------------------
                               OTHER INFORMATION
- --------------------------------------------------------------------------------
                                  Amount/Withdrawal     Total/Ending Bal.
                                  -----------------     -----------------
Available remittance amount            4,294,197.64          4,294,197.64
Principal remittance amount            4,100,931.71          4,100,931.71
Interest remittance amount               193,265.93            193,265.93