You don't necessarily need your previous tax returns to report your lump-sum Social Security payments (SSA-1099), but having them can make the process easier if you plan to use the lump-sum election method to potential lose your taxes.
Key Points:
- Current SSA-1099: Look at Box 5 for the total benefits received, including the lump-sum payment
- Previous Year's Tax Returns: Helpful for finding your income and any taxable Social Security benefits reported in those years if you plan to use the
- Lump-Sum Election Method:
- Refigure the taxable part of the lump-sum payment for the earlier year using that year's income
- Subtract any taxable benefits for that year that you previously reported
- Add the remainder to the taxable part of your benefits for the current year
For more details, you can refer to the IRS guidelines on Back Payments and Publication 915.