SSA-1099 line 5 amount includes funds that were taxed and paid in prior years. Using 2018 Turbo Tax Deluxe, I have entered the prior years amounts as directed and my 2018 taxable obligaion has increased by thousands $$$. Having already paid all taxes due on the lump sum during the years due to all SSA-1099 statements including a setback as taxable, why does the software treat the lump sum as taxable in 2018?
What am I missing?
Thanks
