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I also wonder if I messed up on my 2020 return.   To my understanding the 1099-R is what I converted from traditional to Roth..  However when it asks how much I contributed to the traditional under “deductions and credits” do I also put in this number from 1099-R (lets say $2506) or what I actually contributed to the traditional because the numbers are different (let’s say $2000), or whats on my 5498?   What I actually contributed to traditional is always an even number however on my 5498 what I contributed is a weird number like $2345.10.  Nothing ever matches.  I also convert from traditional to Roth as soon as I can as to not have any gains.  Thanks