A Guide to Estate TaxesMass.gov 2026

1. Click ‘Get Form’ to open it in the editor.
2. Begin by filling out the Decedent and Personal Representative Information. Enter the decedent's first name, middle initial, last name, social security number, and date of death. Provide the domicile address and personal representative's details including their contact information.
3. Proceed to the Authorized Representative Information section if applicable. Fill in the firm name and estate representative's details as needed.
4. In Step 3, indicate the decedent’s residency status by checking either 'Resident' or 'Nonresident'.
5. Complete Step 4 for Tax Computation by entering values from federal Form 706 as instructed. Ensure all calculations are accurate for lines related to Maine taxable estate.
6. Follow through with Steps 5 and 6 for filing order and additional documentation requirements before submitting your completed form.

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