I need to enter 2 ssa-1099 but the system will not let me

If you are filing as Married Filing Jointly you can enter both yours and your spouse's SSA-1099, by Nam.

If you received two SSA-1099's and they both have your Social Security number, then add the amounts in box 5 of each form together and enter the sum of the two on your tax return.

To enter Social Security benefits reported on form SSA-1099

Click on Federal Taxes (Personal using Home and Business)
Click on Wages and Income (Personal Income using Home and Business)
Click on I'll choose what I work on (if shown)
Scroll down to Retirement Plans and Social Security
On Social Security (SSA-1099, RRB-1099), click the start or update button

If you set your tax return up correctly as a joint tax return, when you enter a SSA1099 it will ask which spouse it is for and/or  show you a spot for your spouse's SSA1099.

When you are entering income on a joint return, every income entry screen will either have a spot with both spouse’s names there, or when you click to enter a W-2, 1099R, etc. it will ask you by name which spouse it is for.  You do not have to wait for the software to “ask” you for your spouse’s income. Go to the screens to enter your spouse’s W-2’s, 1099’s, etc. just like you did for your own income.  Then look for your spouse’s name there.

 Go to Federal> Wages & Income>>Retirement Plans and Social Security  (SSA1099 and 1099RRB) to enter your SSA1099.