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IRS Form 1040-X & Instructions

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Tips For Using Form 1040-X

1. Completing Form 1040-XUse Form 1040-X to amend a previously filed tax return. Clearly indicate changes and provide explanations for amendments.
2. Understanding AmendmentsDetermine if you need to file Form 1040-X for corrections to income, deductions, or credits. Amendments can result in additional refunds or taxes owed.
3. Submitting Your FormSign and date Form 1040-X. Mail it to the IRS, as e-filing is not available for amended returns. Allow up to 16 weeks for processing.