Before attempting to amend your tax returns make sure that you were eligible for the HCTC.
The Health Coverage Tax Credit is not available. The credit was not extended and can't be claimed for coverage months beginning after 2021.
Read the instructions for Form 8885 Health Coverage Tax Credit - https://www.irs.gov/pub/irs-pdf/i8885.pdf
See this TurboTax support FAQ for amending a tax return - https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-return/amend-change-correct-return-a...
