Claim for Refund and Request for Abatement
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IRS Form 843, Claim for Refund and Request for Abatement, asks the IRS to refund or cancel certain taxes, penalties, fees, and interest — most commonly penalty abatement for reasonable cause or interest caused by IRS errors. Taxpayers or their authorized representatives complete and mail it. JustFill fills Form 843 online so you can download a clean, ready-to-sign PDF.
Form 843 is the IRS form for asking the government to give money back or cancel an amount it charged you — a "claim for refund" or "request for abatement." It covers penalties and additions to tax (most often abated for reasonable cause), interest caused by IRS errors or delays, certain excise and employment taxes, and excess Social Security, Medicare, or RRTA tax withheld by an employer that won't correct it. It cannot be used to claim an income tax refund (that's Form 1040-X) or an employer's FICA correction (Form 941-X). The current version is the December 2024 revision, a two-page form, and you generally must file a separate Form 843 for each tax period and each type of tax or fee.
The current Form 843 (Rev. December 2024) is a free two-page PDF from the IRS. Download it from the official page at irs.gov/forms-pubs/about-form-843, or open it in JustFill and fill it in your browser without installing anything.
Get the official Form 843 PDF from IRSWhat each section of Form 843 asks for. JustFill’s AI will detect these fields automatically when you upload the PDF — review the breakdown below so you know what to enter.
Boxes grouped under Tax, Penalty, Interest, and Other. Check the one that matches your situation — e.g. abatement of a penalty for reasonable cause, interest due to IRS error or delay under section 6404(e)(1), refund of excess Social Security/Medicare/RRTA tax your employer won't adjust, or Trust Fund Recovery Penalty under section 6672.
Name and SSN of the person requesting the refund or abatement, spouse's name and SSN if the claim relates to a joint return, current mailing address (with foreign-address spaces), EIN for businesses, the name and address shown on the original return if different, and a daytime phone number.
Beginning and ending dates (MM/DD/YYYY) of the period your claim covers. The IRS requires a separate Form 843 for each tax period or fee year.
Line 2 is the dollar amount you want refunded or abated. Line 3 has spaces (a–l) for the date of each payment you're asking to get back, if you already paid.
Checkboxes for Employment, Estate, Gift, Excise, Income, Fee, or Civil penalty. Check only one box unless a special-situation exception in the instructions applies.
Checkboxes for the return your claim relates to: 706, 709, 940, 941, 943, 944, 945, 990-PF, 1040, 1120, 4720, CT-2, the Branded Prescription Drug Fee, or Other.
If the claim involves a penalty, the Internal Revenue Code section the penalty is based on — you'll usually find it on the IRS notice that charged the penalty.
Checkboxes: (a) interest was assessed as a result of IRS errors or delays, (b) a penalty resulted from erroneous written advice from the IRS, (c) reasonable cause or another reason allowed under the law, or (d) none of the above.
A free-text area to explain why the claim should be allowed and show how you computed the amount on line 2. Attach additional sheets and supporting evidence if you need more space — this is where the claim is won or lost.
Signed under penalties of perjury. Both spouses sign for joint-return claims, a corporate officer signs (with title) for corporations, a fiduciary signs for estates and trusts. There are boxes for IRS Identity Protection PINs and a Paid Preparer Use Only block with PTIN and firm details.
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Official source: Form 843 on IRS’s website
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