It is because of the lump sum you received from Social Security. TurboTax is using that information to see if you owe taxes on that income. Your SSA-1099 lump-sum section breaks down the payments into what amount was received for each preceding year.
If 2018 was the first time you received any type of Social Security payment, then when you are asked about the amount of Social Security that was reported on a prior year tax return, the amount you would enter is 0.
You might need to pay taxes on a small portion of your lump-sum payment. However, you might be able to avoid these taxes by apportioning prior year benefits to those previous years’ income (still without filing any amended returns).
After you enter your lump-sum Social Security payment information, TurboTax will automatically figure what if any taxes you owe due to the lump-sum payment.
If you have other questions about this, please ask in the comment box below.
Here are the steps to doing this:
