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IRSOther IRS Forms (1000–1999)

Official form guide

Form 15104-SP: 15104 (SP)

IRS Form 15104‑SP is the Spanish‑language version of Form 15104, used to request a refund of an overpayment of estimated tax. File it when you have paid more estimated tax than you owe for a tax year.

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Form Overview

IRS Form 15104-SP - 15104 (SP)

IRS Form 15104‑SP is the Spanish‑language version of Form 15104, used to request a refund of an overpayment of estimated tax. File it when you have paid more estimated tax than you owe for a tax year.

The form captures the taxpayer’s identity, the tax year, the amount of estimated tax paid, the amount you’re requesting back, and the bank account for direct deposit.

Risk Radar

Scan points
  • 1A single digit error in the bank account can send your refund to the wrong person.
  • 2Wrong tax year entered
  • 3Overpayment amount mis‑calculated
  • 4Bank routing or account number typo
  • 5Missing signature or date

Plain English

If you sent the IRS too much money as estimated tax, this form asks for the extra back. It’s the same as the English form but printed in Spanish. Fill it out only after you’ve confirmed the overpayment amount.

Submission Date

  • Filing date: 2018-01-10 22:00:15
  • 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

identitymoney

Hover a term to preview the meaning.

What this form is for

  • Use when you have a confirmed overpayment of estimated tax.
  • Do not use for a refund of an amended return; that requires Form 843.
  • Check Form 1040‑X if you are adjusting a filed return instead.

Form selector

Use this form or another form?

Amended return needed

Adjusts tax liability, not just overpayment

✓ Verify if the overpayment results from a correction

Form 1040‑X

Penalty refund request

Claims refund of penalties or interest

✓ Ensure the overpayment is not solely a penalty

Form 843

Deadline or filing window

The IRS does not set a hard deadline for refund requests, but the statute of limitations for claiming a refund is generally three years from the date the tax was paid. Filing earlier reduces processing time.

  • —Overpayment amount | Sum of estimated payments – tax liability | Refund requested | Verify with payment receipts

Checklist

What you need before filling it out

1

Taxpayer identification

Social Security or EIN · Tax return or SSN card

⚠ Missing or mismatched ID✕ High
2

Estimated tax payments

1040‑ES vouchers or electronic payment confirmations · Bank statements

⚠ Forgetting a payment✕ Medium
3

Bank routing/account

Void check or bank statement · Direct deposit field

⚠ Transposed digits✕ High
4

Signature

Handwritten signature · Signed form copy

⚠ Illegible or absent signature✕ High
5

Tax year

Year of overpayment · Prior year return

⚠ Selecting wrong year✕ Medium

Before you submit

  1. 1Confirm edition date matches the current tax year
  2. 2Re‑calculate overpayment amount using all payment records
  3. 3Verify routing and account numbers against a voided check
  4. 4Ensure name and SSN/EIN match IRS records
  5. 5Sign and date the form in the designated box
  6. 6Attach copies of payment confirmations or vouchers
  7. 7Include a cover letter stating the purpose of the filing
  8. 8Mail using certified mail with tracking

How to file this form

  1. 1Download the latest Form 15104‑SP from IRS.gov
  2. 2Print on white 8.5" x 11" paper; do not shrink or enlarge
  3. 3Fill in all required fields in black ink
  4. 4Attach supporting payment documentation
  5. 5Sign and date the form
  6. 6Place in an envelope with the correct IRS mailing address
  7. 7Send via certified mail; keep receipt and tracking number

Known limitations

  1. 1The form does not accept electronic filing; only paper submission is accepted
  2. 2Refunds are limited to the amount of overpaid estimated tax, not penalties or interest
  3. 3Direct deposit is optional; if omitted, refund is mailed as a check
  4. 4The IRS may request additional documentation before processing

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 15104‑SP is active for the 2024 tax year. The IRS updates the Spanish version annually; verify the edition date before filing.

What changed or needs a fresh check

  • Edition date – verify the form shows the current tax year
  • Fee – no filing fee for this refund request
  • Mailing address – use the address in the 15104‑SP instructions
  • Signature block – must be signed in ink
  • Bank account format – include routing and account numbers exactly as shown on a check

Form Preview

Form 15104-SP page 1

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Form 15104-SP page 2

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Quick Facts

Taxpayers (individuals or businesses) who overpaid their estimated tax and want a refund.
The form captures the taxpayer’s identity, the tax year, the amount of estimated tax paid, the amount you’re requesting back, and the bank account for direct deposit.
Submit after you file your annual return or when you discover an overpayment before the return is filed. No specific statutory deadline, but filing within 3 years of the original payment is advisable.
Mail the completed form to the address listed in the instructions for Form 15104‑SP, or deliver it to an IRS Taxpayer Assistance Center that accepts Spanish‑language filings.
Incorrect amounts or mismatched account numbers delay the refund and can trigger an audit of the overpayment claim.
1. Gather payment records and the tax year’s estimated‑tax vouchers. 2. Complete the identification section in Spanish, entering the exact overpayment amount. 3. Provide a valid routing and account number for direct deposit. 4. Sign and date the form, then mail it to the address in the instructions.

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After you file

  1. 1Save a scanned copy of the signed form and all attachments
  2. 2Record the mailing date and tracking number
  3. 3Monitor your bank account for the direct‑deposit refund
  4. 4If no refund arrives in 6‑8 weeks, call the IRS refund hotline
  5. 5Keep the original payment records for at least three years
  6. 6Update your estimated‑tax calculations for the current year

Sources

  • SRCForm 15104‑SP title and purposeIRS official form index
  • SRCRefund claim for overpayment of estimated taxIRS instructions for Form 15104
  • SRCThree‑year statute of limitations for tax refundsIRS Publication 514
  • SRCNo filing feeIRS fee schedule for refund requests
  • SRCMailing address for Form 15104‑SPIRS Form 15104 instructions
  • SRCDirect deposit optionalIRS guidance on refund methods
  • SRCSignature requirementForm 15104‑SP instructions

Common confusion points

Tax year vs. filing year

Overpayment relates to the year the tax was paid, not the year you file

→ Double‑check the year on payment vouchers

Direct deposit vs. check

Some filers think direct deposit is mandatory

→ Include bank info only if you want electronic payment

Spanish vs. English form

Identical fields but different labels

→ Use the English instructions if you need clarification

Amended return vs. refund request

Both involve refunds but different forms

→ Use Form 1040‑X for amended returns

Statute of limitations

Many think there is no deadline

→ Refund must be claimed within three years of payment

Workflow map

Related forms and next steps

4 signals

Before

Form 1040‑ES (estimated tax vouchers)

Current

15104-SP

After

Form 843 (claim for refund of penalties) if you also seek interest or penalties

Often used with

Form 1040‑X (amended return) if the overpayment stems from a correction

⚠ If something goes wrong

  • Contact IRS Refund Hotline (1‑800‑829‑1954) and reference Form 15104‑SP

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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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