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Official form guide
Form 720-TO: 720-TO
IRS Form 720‑TO is the declaration used to request a refund of Social Security tax that was withheld in error. File it when you, as an employee, believe you over‑paid Social Security tax because of a filing mistake or exemption error.
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IRS Form 720-TO - 720-TO
IRS Form 720‑TO is the declaration used to request a refund of Social Security tax that was withheld in error. File it when you, as an employee, believe you over‑paid Social Security tax because of a filing mistake or exemption error.
Risk Radar
Scan points- 1A single missing signature can cause the entire refund request to be rejected.
- 2Missing signature or date
- 3Incorrect employer EIN
- 4Wrong tax year listed
- 5Insufficient supporting documentation
Plain English
If your paycheck shows Social Security tax that you shouldn’t have paid, you can ask the IRS to give it back with this form. It’s a short paper that tells the IRS why the tax was wrong and asks for the money back. You’ll need your W‑2 and proof of the error.
Submission Date
- Filing date: 2017-09-16 08:01:46
- Preparation window: collect IDs, supporting records, and signatures in advance.
- Final review: verify names, dates, and required fields before submission.
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What this form is for
- Use when you overpaid Social Security tax due to a withholding mistake.
- Do not use for regular income‑tax refunds; use Form 843 instead.
- If the error involves Medicare tax, a different form (Form 843) is required.
Form selector
Use this form or another form?
Employer error on employee’s W‑2
Refund of excess tax not limited to Social Security
✓ Verify tax type before filing
Claim for penalty or interest on over‑withheld tax
Same refund purpose but includes penalties
✓ Confirm no penalty applies
Deadline or filing window
The claim must be filed within three years after the date you filed the original return that included the erroneous Social Security tax, or within two years after the tax was paid, whichever is later. If the deadline is missed, the refund is generally barred.
- —Withheld amount | sum of Social Security tax shown on W‑2 | Refund amount requested | Verify amount matches pay stub
Checklist
What you need before filling it out
Employee name & SSN
Valid Social Security card or tax return · Form 720‑TO, line 1
Employer EIN
Employer’s W‑2 box b · W‑2 copy
Tax year
Calendar year of error · W‑2 box a
Amount of tax withheld
Box 4 of W‑2 · Form 720‑TO, line 4
Statement of error
Written explanation · Form 720‑TO, Part II
Supporting docs
Pay stubs, employer notice · Attach to form
Before you submit
- 1Use the latest edition of Form 720‑TO.
- 2Confirm employee SSN matches the tax return.
- 3Check employer EIN for accuracy.
- 4Enter the correct tax year.
- 5Calculate the exact Social Security tax amount to be refunded.
- 6Write a clear, concise statement of why the tax was wrong.
- 7Attach the original W‑2 and any supporting pay records.
- 8Sign and date the form.
- 9Mail to the correct IRS address for your state.
- 10Retain a complete copy for your records.
- 11Track the mailing date and delivery confirmation.
How to file this form
- 1Download the current Form 720‑TO PDF from IRS.gov.
- 2Print the form on white 8.5" x 11" paper.
- 3Complete personal and employer sections in black ink.
- 4Enter the exact amount of Social Security tax withheld in error.
- 5Provide a brief, factual statement of the error.
- 6Attach a copy of the W‑2 and any relevant pay stubs.
- 7Sign and date the bottom of the form.
- 8Place the form in an envelope with the correct IRS mailing address.
- 9Send via certified mail or another trackable service.
Known limitations
- 1Form 720‑TO cannot be e‑filed; only paper filing is accepted.
- 2The form does not handle refunds for Medicare tax errors.
- 3IRS instructions may change; always verify the latest guidance.
- 4No fee schedule is provided; the form itself is free.
Field map
Compact field-by-field guide
General Info
2 items
Full legal name and taxpayer identification number (SSN or EIN).
Current mailing address.
Details
2 items
Complete all applicable sections of this form according to the official IRS instructions.
Enter the relevant dollar amount if this form involves tax calculation.
Certification
1 items
Read and acknowledge any certifications required by this form.
Signatures
1 items
Sign and date. Unsigned forms cannot be processed.
Almost done reviewing the fields?
Fillable formOpen in Editor->Form 720‑TO is currently active for tax years 2022 onward. Check the IRS website for the latest edition before filing.
What changed or needs a fresh check
- Edition date – verify the form is the latest version (check IRS site).
- [object Object]
- Mailing address – use the address in the current instructions for the taxpayer’s state.
- Signature line – ensure the employee signs and dates.
- Tax year field – confirm the correct year of the erroneous withholding.
Quick Facts
Downloads
After you file
- 1Keep the certified‑mail receipt and tracking number.
- 2File the copy of the completed form and all attachments in your tax records.
- 3Monitor your mail for an IRS acknowledgment or request for additional info.
- 4If no response after 6 weeks, call the IRS refund hotline.
- 5Record the date of any IRS correspondence.
- 6Update your personal tax file with the refund amount once received.
Sources
- SRCIRS Form 720‑TO official PDFtitle and purpose
- SRCIRS Instructions for Form 720‑TOfiling address and signature requirement
- SRCStatute of limitations for tax refundsthree‑year rule
- SRCForm 720‑TO line itemsemployee name, SSN, employer EIN{ }
- SRCNot 1000
- SRCNot clearly 1000
Common confusion points
Social Security vs. Medicare tax
Both appear on W‑2 box 4/6
→ Verify which tax is being claimed
Three‑year refund window
Some think it’s five years
→ Check filing date of original return
Employer‑issued corrected W‑2
May eliminate need for Form 720‑TO
→ Request corrected W‑2 first
Electronic filing
Not available for this form
→ Use paper only
Signature requirement
Some think a stamp is enough
→ Signature must be handwritten
Workflow map
Related forms and next steps
Before
Current
After
Often used with
⚠ If something goes wrong
- File Form 843 to request a refund of penalties or interest after a denied Form 720‑TO
- Request a corrected W‑2 before filing Form 720‑TO
- Consider filing a Form 1040X to amend the original
Source transparency
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