Did you get a lump sum payment for 2021? Just enter the SSA-1099 as it is. You got the payment in 2022 so it is 2022 income.
Up to 85% of Social Security becomes taxable when all your other income plus 1/2 your social security, reaches:
Married Filing Jointly: $32,000
Single or head of household: $25,000
Married Filing Separately: 0
