2021 form 1 es massachusetts-2026

1. Click ‘Get Form’ to open the 2021 Form 1-ES in the editor.
2. Begin by completing the Estimated Tax Worksheet to determine your estimated tax. This worksheet will guide you through calculating your taxable income and applicable rates.
3. Enter your personal information, including your name, address, Zip code, and Social Security number on the payment voucher.
4. Fill in the correct due dates for your payments based on your estimated tax calculations.
5. On line 1 of the voucher, input the amount due from line 12 of the worksheet. Ensure accuracy to avoid penalties.
6. Complete the Record of Estimated Tax Payments section and detach the voucher at perforations for mailing.
7. Mail the completed voucher along with a check or money order made payable to the Commonwealth of Massachusetts. Don’t forget to write your Social Security number on it.

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