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IRSOther IRS Forms (1000–1999)

Official form guide

Form 15080-JA: 15080 (ja)

IRS Form 15080‑JA is a request to the Internal Revenue Service for a refund of taxes that were overpaid to the Japanese government under a tax treaty. Use it when you have documented excess withholding or payment that should be returned.

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Form Overview

IRS Form 15080-JA - 15080 (ja)

IRS Form 15080‑JA is a request to the Internal Revenue Service for a refund of taxes that were overpaid to the Japanese government under a tax treaty. Use it when you have documented excess withholding or payment that should be returned.

It captures the taxpayer’s identity, the amount of Japanese tax paid, the treaty provision applied, and supporting documentation of the overpayment.

Risk Radar

Scan points
  • 1A single missing attachment can cause the entire refund request to be rejected.
  • 2Missing treaty article reference
  • 3Incorrect payment amount entered
  • 4Unsigned or improperly dated form
  • 5Failure to attach required Japanese documents

Plain English

If you paid more Japanese tax than you owed because of a treaty or mistake, this form asks the IRS to give you the extra money back. Fill it out with the amounts you paid, the treaty article, and proof of the overpayment.

Submission Date

  • Filing date: 2025-10-28 22:12:19
  • 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

internal revenue serviceidentityinternalpaymentmoney

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What this form is for

  • Use when you have a documented overpayment of Japanese tax under a treaty.
  • Do not use for domestic U.S. tax refunds.
  • Check Form 1040‑X if you are also amending a U.S. return.

Form selector

Use this form or another form?

Amended U.S. return needed

Adjusts U.S. tax liability that may affect treaty refund

✓ Verify U.S. tax impact before filing 15080‑JA

Form 1040‑X

Non‑treaty foreign tax overpayment

Requests credit or refund of foreign tax not covered by treaty

✓ Confirm treaty does not apply

Form 843

Deadline or filing window

The refund request must be filed within three years of the date you paid the Japanese tax, or within two years after the tax was assessed, whichever is later. The IRS does not set a separate calendar deadline for this form.

  • —Japanese tax paid | sum of all payment amounts | Total Japanese tax paid | Verify totals match receipts

Checklist

What you need before filling it out

1

Taxpayer identification

SSN or ITIN · Tax return or IRS notice

⚠ Misspelled number✕ High
2

Amount of Japanese tax paid

Payment receipts, bank statements · Payment confirmations

⚠ Rounded or truncated amounts✕ Medium
3

Treaty article citation

Treaty text or IRS guidance · Official treaty publication

⚠ Wrong article cited✕ High
4

Japanese tax assessment

Final assessment notice · PDF from Japanese tax authority

⚠ Missing stamp or date✕ High

Before you submit

  1. 1Form 15080‑JA is the latest edition
  2. 2All required fields are filled in
  3. 3Taxpayer signature and date are present
  4. 4SSN/ITIN matches IRS records
  5. 5Treaty article is correctly cited
  6. 6Total Japanese tax paid matches attached receipts
  7. 7All supporting documents are attached in clear copies
  8. 8Mailing envelope includes correct IRS address
  9. 9Use a trackable mailing service
  10. 10Retain a copy of the entire packet for your records

How to file this form

  1. 1Download the 2024 Form 15080‑JA PDF from IRS.gov
  2. 2Print the form on white 8.5" x 11" paper
  3. 3Complete all identification and payment sections by hand or typed PDF
  4. 4Attach copies of Japanese tax assessment, payment proof, and treaty reference
  5. 5Sign and date the form
  6. 6Place the packet in an envelope addressed to the IRS address in the instructions
  7. 7Send via USPS Certified Mail or a courier with tracking

Known limitations

  1. 1No electronic filing option; must be mailed
  2. 2IRS does not publish processing time estimates for this specific form
  3. 3Form instructions may not list every possible treaty provision
  4. 4Only applicable to Japanese tax overpayments covered by a treaty

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

Form 15080‑JA is currently available in the 2024 edition on the IRS website. No revisions have been announced for 2025.

What changed or needs a fresh check

  • Edition date – confirm the form is the 2024 edition
  • Fee – no filing fee required for Form 15080‑JA
  • Mailing address – use the address in the current instructions
  • Signature line – ensure the taxpayer or authorized representative signs
  • Taxpayer ID – provide a valid SSN or ITIN

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Quick Facts

Taxpayers (individuals or businesses) who had excess Japanese tax withheld or paid.
It captures the taxpayer’s identity, the amount of Japanese tax paid, the treaty provision applied, and supporting documentation of the overpayment.
File after you receive the final Japanese tax assessment showing the overpayment, typically within the statute of limitations for a refund claim (generally three years from the date of payment).
Mail the completed form and attachments to the IRS address listed in the instructions for Form 15080‑JA. No electronic filing option is provided.
Incorrect amounts or missing treaty references cause the IRS to reject the request, delaying any refund and possibly triggering penalties for false statements.
1. Gather the Japanese tax return, payment receipts, and treaty article. 2. Complete the identification and payment sections on Form 15080‑JA. 3. Attach copies of the Japanese assessment and proof of payment. 4. Sign and date the form. 5. Mail to the IRS address indicated in the instructions, using a trackable service.

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After you file

  1. 1Keep the certified mailing receipt
  2. 2File the copy of the submitted packet with your tax records
  3. 3Monitor IRS correspondence for acknowledgment or request for more info
  4. 4Note the filing date to track the three‑year limitation window
  5. 5If a refund is issued, reconcile it with your foreign tax credit calculations
  6. 6Update any related U.S. tax returns if the refund affects your tax liability

Sources

  • SRCForm 15080‑JA title and purposeIRS official form header
  • SRCEdition date 2024IRS form download page
  • SRCNo filing feeinstructions section
  • SRCMailing addressinstructions PDF
  • SRCThree‑year refund limitationIRS refund policy for treaty claims
  • SRCRequired supporting documentsinstructions checklist
  • SRCSignature requirementform line item
  • SRCNo electronic filing optionIRS filing methods list

Common confusion points

Treaty article vs. domestic law

Users mix up treaty provision numbers

→ Verify against the official U.S.–Japan tax treaty

Refund vs. credit

Some think the form gives a credit on a U.S. return

→ This form requests a cash refund from the IRS

Required Japanese documents

Unclear which assessment is acceptable

→ Attach the final assessment notice with official seal

Mailing address changes

IRS updates address periodically

→ Use the address listed in the current form instructions

Three‑year window calculation

Users calculate from filing date instead of payment date

→ Count from the date the Japanese tax was actually paid

Workflow map

Related forms and next steps

4 signals

Before

Determine overpayment using Japanese tax return

Current

15080-JA

After

Await IRS acknowledgment, then possible Form 843 for other foreign tax issues

Often used with

Form 1040‑X if U.S. tax liability must be amended

⚠ If something goes wrong

  • File a written inquiry referencing the rejected Form 15080‑JA

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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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