Where do i mail my federal and state tax returns as a Massachusetts resident

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For  federal:

https://www.irs.gov/filing/where-to-file-paper-tax-returns-with-or-without-a-payment

For state:

https://www.mass.gov/service-details/mailing-addresses-for-massachusetts-tax-forms

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When you mail a tax return, you need to attach any documents showing tax withheld, such as your W-2’s or any 1099’s.  Use a mailing service that will track it, such as UPS or certified mail so you will know the IRS received the return.