Retirement tax questions

I tried following the suggesting, but there is no "Preview my 1040" option. The tax summary only shows one page at a high level. The only thing I was able to do, after paying, was to print my 1040 and then review. However the data doesn't appear correct. I have no amount entered in 1040 4b but I do have a form 5329 created and I'm being taxed on the $1200.00 at 6% (penalty tax) this is wrong. These funds were removed in the same IRA year that they were added so I should not be hit with the 6% penalty. Maybe I'm misinformed, but it was my understanding that you have till the tax filing date, e.g. 4/15/2021 to contributed / correct 2020 IRA contributions. The $1200.00 was removed in 2021 prior to the tax filing dead line so this should apply to 2020 thus I should not have any overpayment penalty.