I received a lump sum payment in 2020 from SSA due to disability that included payment for 2018,2019. I did file a W2 in 2018 and 2019 due to my employer based LTD insurance plans. So, I did pay taxes on the amount in 2018 and 2019. After I received the lump sum....I did have to pay almost all of the lump sum to the employer LTD insurance. How do I avoid being double taxed for the 2018 and 2019 portion included in my 2020 SSA-1099?
