I followed your instruction on how to amend my 2018 tax return how ever it increased tax due by $ 1,232 for an excess taxable amount of $ 606.78. The additional...

Jesus,CPA;you helped me today fix 2019 1040, and advised me to go to 2018 return and amend. But how do I amend ?When I opened 2018 and add $236.49 excess contri...