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IRSOther IRS Forms (2000–3999)

Official form guide

Form 3911-SP: 3911 (SP)

Form 3911‑SP is the IRS’s “Request for Refund of Overpayment of Tax – State and Local” used to claim a refund of state or local taxes that were overpaid. File it when you have a confirmed overpayment and need the IRS to forward the refund to the appropriate state agency.

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Form Overview

IRS Form 3911-SP - 3911 (SP)

Form 3911‑SP is the IRS’s “Request for Refund of Overpayment of Tax – State and Local” used to claim a refund of state or local taxes that were overpaid. File it when you have a confirmed overpayment and need the IRS to forward the refund to the appropriate state agency.

The form captures the amount of overpayment, the tax year, the state or local jurisdiction, and the taxpayer’s identifying information.

Risk Radar

Scan points
  • 1A single typo in the jurisdiction code can stall the entire refund process.
  • 2Incorrect jurisdiction code
  • 3Mismatched refund amount
  • 4Missing signature
  • 5Out‑of‑date edition of the form

Plain English

If you paid too much state or local tax and the state hasn’t returned the money, you can ask the IRS to send a refund on your behalf using this form. It tells the IRS how much you think you’re owed and where to send it.

Submission Date

  • Filing date: 2023-02-09 22:10:35
  • Preparation window: collect IDs, supporting records, and signatures in advance.
  • Final review: verify names, dates, and required fields before submission.

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Glossary Terms

jurisdictionmoneylocal

Hover a term to preview the meaning.

What this form is for

  • Use when you have an overpayment of state or local tax and the state has not refunded it.
  • Do not use for federal tax refunds; use regular Form 3911 instead.
  • If the state has already issued a refund, this form is not needed.

Form selector

Use this form or another form?

Federal overpayment

Handles IRS refunds only

✓ Verify refund source before filing

Form 3911

State tax credit claim

Credit, not refund

✓ Confirm eligibility for credit

Form 1040 Schedule A

Incorrect state filing

Direct to state agency

✓ Use state form first

State-specific amendment form

Deadline or filing window

The IRS generally requires the request to be filed within one year of the overpayment date. If the overpayment is older than a year, the request may be denied. No specific calendar deadline exists beyond that window.

  • —Overpaid amount | Input amount | Refund amount | Verify with payment records

Checklist

What you need before filling it out

1

Amount of overpayment

Payment receipt or bank statement · Tax return payment section

⚠ Often rounded incorrectly✕ High
2

Jurisdiction code

State tax notice · State abbreviation list in instructions

⚠ Mis‑typed code✕ Medium
3

Tax year

Original return · Return header

⚠ Year omitted or wrong✕ Medium
4

Proof of payment

Cancelled check, electronic receipt · Payment records

⚠ Missing attachment✕ High

Before you submit

  1. 1Use the 2024 edition of Form 3911‑SP
  2. 2Enter correct taxpayer name and SSN/EIN
  3. 3Accurately copy the overpayment amount
  4. 4Select the correct state or local jurisdiction code
  5. 5Specify the correct tax year
  6. 6Attach proof of payment and any state notice
  7. 7Sign and date the form
  8. 8Mail to the exact IRS address for 3911‑SP
  9. 9Retain a copy of the entire packet
  10. 10Record the mailing date and tracking number

How to file this form

  1. 1Download the latest 3911‑SP PDF from IRS.gov
  2. 2Print on white 8.5"×11" paper
  3. 3Complete all required fields in black ink
  4. 4Attach supporting documents (payment proof, state notice)
  5. 5Sign and date the bottom of the form
  6. 6Place everything in an envelope with correct IRS address
  7. 7Send via certified mail or another trackable service

Known limitations

  1. 1No electronic filing option; only paper submission accepted
  2. 2Form does not process federal refunds
  3. 3IRS may request additional documentation after receipt
  4. 4Refund amount is limited to the overpayment proven

Field map

Compact field-by-field guide

6 fields

General Info

2 items

Taxpayer Name and TIN

Full legal name and taxpayer identification number (SSN or EIN).

Requiredtext
Address

Current mailing address.

Requiredtext

Details

2 items

Required Information

Complete all applicable sections of this form according to the official IRS instructions.

Requiredtext
Amount (if applicable)

Enter the relevant dollar amount if this form involves tax calculation.

amount

Certification

1 items

Certification Statement

Read and acknowledge any certifications required by this form.

Requiredcheckbox

Signatures

1 items

Signature

Sign and date. Unsigned forms cannot be processed.

Requiredsignature
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Current form status
IRS

The form is currently in its 2024 edition. No major revisions have been issued since the 2023 update. Check the IRS website for any newer revision before filing.

What changed or needs a fresh check

  • Edition date – confirm 2024 edition on the top of the form
  • Fee – no filing fee required
  • Mailing address – use the address in the 2024 instructions
  • Signature line – ensure it is signed and dated
  • Attachments – include proof of payment and any state notice

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Form 3911-SP page 1

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Form 3911-SP page 2

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Quick Facts

Taxpayers who have an overpayment of state or local tax and have not received a refund from the state agency.
The form captures the amount of overpayment, the tax year, the state or local jurisdiction, and the taxpayer’s identifying information.
File after you receive a notice that the state has not issued a refund, typically within one year of the overpayment date.
Mail the completed form to the IRS address listed in the instructions for Form 3911‑SP; no electronic filing option is provided.
Errors in the amount, jurisdiction, or taxpayer identification can delay the refund or cause the IRS to send the money to the wrong agency.
1. Gather the original tax return, proof of payment, and any state notice of overpayment. 2. Complete the form, double‑checking the amount and jurisdiction codes. 3. Sign and date the form. 4. Mail it to the IRS address for Form 3911‑SP. 5. Keep a copy for your records.

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After you file

  1. 1Save the certified mail receipt and tracking number
  2. 2Mark the filing date on your calendar
  3. 3Monitor IRS correspondence for acknowledgment
  4. 4If no response in 30 days, call the IRS refund line
  5. 5Keep all original supporting documents for at least three years
  6. 6Update your personal records with the expected refund amount

Sources

  • SRCForm 3911‑SP title and purposeIRS official form description
  • SRCEdition date 2024IRS form revision history
  • SRCNo filing feeIRS instructions for Form 3911‑SP
  • SRCMailing addressIRS instructions page for 3911‑SP
  • SRCOne‑year filing windowIRS guidance on refund claims
  • SRCSignature requirementForm instructions
  • SRCJurisdiction code listIRS instructions appendix
  • SRCNo electronic filingIRS filing options section

Common confusion points

Form 3911 vs. 3911‑SP

Different scopes (federal vs. state)

→ Verify which refund you are claiming

Jurisdiction code format

State abbreviations vs. numeric codes

→ Use the list in the instructions

Mailing address

Multiple IRS processing centers

→ Use the address specific to 3911‑SP

Deadline window

One‑year rule not a calendar date

→ Calculate from the overpayment date

Signature requirement

Electronic signatures not accepted

→ Sign with pen on printed form

Workflow map

Related forms and next steps

4 signals

Before

File original state tax return

Current

3911-SP

After

IRS issues refund to state agency

Often used with

Original payment receipt, state notice of overpayment

⚠ If something goes wrong

  • Receive IRS notice of deficiency – may need to file Form 3911 (regular) or appeal

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Copyright & Licensing - US Government Forms

Independent guide

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Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
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