What should I do if I incorrectly completed the 8889 form in 2020? This has caused me to have excess contributions that year and all the following years on form 5329.

[ginascell]

I added HSA contributions to line 2 and line 9 when it should have only been line 9.  

[dmertz · Accepted solution]

Amend your 2020, 2021 and 2022 tax returns to correct the 2020 form 8889 and the 2020, 2021 and 2022 Forms 5329.  The deadline to amend your 2020 tax return is generally April 15, 2024

https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-return/amend-change-correct-return-a...