Address to mail my amend forms

Go to this IRS website for the mailing address of a Form 1040-X, by state, with and without a payment - https://www.irs.gov/filing/where-to-file-paper-tax-returns-with-or-without-a-payment

For your federal return, the mailing address depends on where you live.  See Where To File in the Instructions for Form 1040-X for guidance.

To find the mailing address for your state's amended return, find your state in the TurboTax Help article, How do I contact my state Department of Revenue?.  You can also type [your state] amended tax return mailing address into a search engine, and you should find an acceptable result.