attorney fees on ssa form 1099

I have over $20,000 in attorney fees for 2019 on my SSA 1099 which are included in Box 3 & 5.  My case took over 4 years to win my disability.  However, my question is my attorney wasn't actually paid by the SSA until 2020 but the fees were included on my 2019 SSA 1099.  I have a letter from the SSA stating such just over a month ago.  I'm being hit with such large taxable amount of income already for 2019 & the attorney fees are included in the benefits paid.  I wondered how I should report the attorney fees in Turbo Tax? Please advise.