How do I file an amended return?

If you are a resident, you should file a Form 511X.

If you are a part-year resident or a nonresident you should file a 511NR. On the line next to the form number you place an X (Form 511NRX), this indicates the return is an amended one. Adjust the withholding line by subtracting the previous overpayments or adding tax previously paid.

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