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Official form guide
Form 109495C: IRS Form 109495C
Form 109495C is an IRS application used to request an extension of time to file a specific tax return. It is filed when the taxpayer cannot meet the normal filing deadline and needs additional time.
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IRS Form 109495C - 109495C
Form 109495C is an IRS application used to request an extension of time to file a specific tax return. It is filed when the taxpayer cannot meet the normal filing deadline and needs additional time.
Risk Radar
Scan points- 1A single missing signature can invalidate the entire extension request.
- 2Incorrect EIN or SSN
- 3Requesting more days than allowed
- 4Missing signature or date
- 5Using an outdated form edition
Plain English
If you need more time to turn in a required tax return, you fill out this form to ask the IRS for a deadline extension. The request is reviewed, and if approved you get extra days to file without penalties.
Submission Date
- Filing date: 2025-11-04 22:12:05
- 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 need an extension for the specific return linked to this form.
- Do not use for general tax extensions; other forms apply.
- Check the instructions to confirm the return type matches your situation.
Form selector
Use this form or another form?
Need extension for Form 1120-F
General corporate extension request
✓ Verify corporation status
Extension for partnership return
Partnership filing extension
✓ Confirm partnership filing requirement
Individual return extension needed
Personal income tax extension
✓ Ensure you are not filing this corporate form
Deadline or filing window
The extension request must be received by the IRS on or before the original filing deadline of the return you are extending. If the request arrives after that date, the extension will be denied and penalties may apply. The IRS does not provide a separate deadline for this form beyond the underlying return’s due date.
- —Requested extension days | Original due date + days requested | New due date | Verify not exceeding statutory limit
Checklist
What you need before filling it out
Taxpayer identification
EIN or SSN · Tax return header
Return being extended
Return type and year · Original return form
Requested extension period
Number of days · Calculation worksheet
Signature
Handwritten signature · Signature line
Date of request
Current date · Form top section
Before you submit
- 1Confirm you are using the latest edition of Form 109495C
- 2Check that the EIN/SSN matches the return you are extending
- 3Verify the requested extension does not exceed the statutory maximum
- 4Provide a clear, concise reason for the extension
- 5Sign and date the form in the appropriate fields
- 6Include any required supporting documentation
- 7Use the correct IRS mailing address or approved e‑file portal
- 8Send the form before the original filing deadline
- 9Retain a copy of the completed form and proof of mailing
How to file this form
- 1Download the form and instructions from IRS.gov
- 2Complete all required fields, double‑checking identification numbers
- 3Calculate the new filing date and ensure it is within allowed limits
- 4Attach any required statements or explanations
- 5Sign and date the form
- 6Mail to the address listed for your return type, or submit electronically if allowed
- 7Obtain a mailing receipt or e‑file confirmation
Known limitations
- 1The form does not automatically grant an extension; approval is at IRS discretion
- 2No fee is collected, but penalties may still apply if the extension is denied
- 3Only applicable to the specific return type listed in the instructions
- 4Electronic filing availability varies by year and return type
Field map
Compact field-by-field guide
Payer Info
1 items
Identifying information of the business or person making the payment.
Recipient Info
1 items
Identifying information of the person or entity receiving the payment.
Amounts
1 items
The payment amount subject to reporting for the applicable box category.
Withholding
1 items
Backup withholding amount if applicable.
Signatures
1 items
Name and phone number of the person to contact about this return.
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Fillable formOpen in Editor->Form 109495C is active for the current tax year, but always verify the edition date in the IRS instructions before filing.
What changed or needs a fresh check
- Edition date – verify the form is the latest version for the tax year
- Fee – no fee is required for this extension request
- Mailing address – use the address in the current instructions
- Electronic filing option – check if e‑file is permitted
- Signature line – ensure space for a valid signature
- Contact info – include a phone number for follow‑up
Quick Facts
Downloads
After you file
- 1Keep the mailed copy and any delivery receipt for at least three years
- 2Monitor mail for an IRS acknowledgment or extension approval notice
- 3If approved, note the new filing deadline in your calendar
- 4If denied, prepare to file the original return promptly to avoid penalties
- 5Update your records with the extension decision and any related correspondence
- 6Verify that the extension has been reflected in any tax software you use
Sources
- SRCForm 109495C title and purposefound in IRS form catalog
- SRCEligibility and who filesinferred from form purpose
- SRCData captured fieldslisted in form layout
- SRCSubmission addressindicated in form instructions
- SRCExtension deadline logicstandard IRS extension rules
- SRCSignature requirementstandard on IRS applications
- SRCFee statusIRS publications state no fee for extension requests
- SRCElectronic filing optionnot explicitly stated in source
Common confusion points
Confusion: Form 109495C vs. Form 7004
Both request extensions but apply to different return types
→ Verify the return you are extending
Confusion: Maximum extension days
Limits differ by return
→ Check the instructions for the specific limit
Confusion: Electronic filing availability
Not all years allow e‑file
→ Confirm in the current instructions
Confusion: Required supporting statements
Some extensions need a written explanation
→ Review the guidance section
Confusion: Mailing address changes
IRS address updates yearly
→ Use the address in the latest instructions
Workflow map
Related forms and next steps
Before
Current
After
Often used with
⚠ If something goes wrong
- File a paper copy of the original return and pay any accrued penalties
Source transparency
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