TurboTax Desktop: Search for ssa-1099 and then select the Jump to link.
On the screen Did you receive Social Security or Railroad Retirement benefits in 20XX? answer Yes and select Continue.
On the next screen, check the box beside Social Security benefits (Form SSA-1099), then enter the amounts from your form(s) in the boxes provided.
If you received multiple SSA-1099s, add up the amounts for each box and enter them together.
Don't include SSA-1099s for dependents. Those should be reported on the dependent's return, but only if they are required to file a return (this is uncommon).
Select Continue and follow the onscreen instructions.