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IRSOther IRS Forms (7000–9999)

Official form guide

Form 965C: 965-C

Form 965‑C is the application to request an automatic extension of time to file IRS Form 965, the Corporate Net Worth Tax return. Use it when a corporation cannot meet the original filing deadline for Form 965.

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Form Overview

IRS Form 965C - 965-C

Form 965‑C is the application to request an automatic extension of time to file IRS Form 965, the Corporate Net Worth Tax return. Use it when a corporation cannot meet the original filing deadline for Form 965.

The form captures the corporation’s name, EIN, tax year, original filing deadline, and the length of extension requested, plus the required payment.

Risk Radar

Scan points
  • 1A single missed signature can invalidate the entire extension request.
  • 2Missing the original Form 965 deadline
  • 3Incorrect extension fee amount
  • 4Wrong mailing address
  • 5Unsigned form

Plain English

If your company owes the Net Worth Tax but needs more time to finish the return, you file Form 965‑C to ask the IRS for a short extension. The request is simple, but it must be on time and include the correct fee.

Submission Date

  • Filing date: 2020-01-28 22:13:27
  • 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

net worthpaymentlength

Hover a term to preview the meaning.

What this form is for

  • Use when you need a six‑month extension for Form 965.
  • Do not use for individual tax extensions (that's Form 4868).
  • If you already filed Form 965 late, see Form 965‑D for penalty relief.

Form selector

Use this form or another form?

Late Form 965 filing without prior extension

Requests penalty abatement

✓ Verify eligibility before filing

Form 965‑D

Extension for other corporate taxes

General application for extension of time to file

✓ Confirm the tax type matches

Form 1127

Deadline or filing window

The extension request must be received by the IRS on or before the original Form 965 filing deadline. If the request arrives after that date, the extension is not granted and penalties may apply. The IRS typically grants a six‑month extension, moving the due date to the 15th day of the 10th month after year‑end.

  • —Extension fee amount | $200 (2024 rate) | Total payment due | Verify fee in current instructions

Checklist

What you need before filling it out

1

Corporate name and EIN

Articles of incorporation or IRS notice · Form header

⚠ Wrong EIN leads to rejection✕ High
2

Tax year and original due date

Prior year return or calendar · Form 965‑C line 2

⚠ Mis‑entered year causes processing delay✕ Medium
3

Extension fee payment

Cancelled check or EFT confirmation · Payment voucher

⚠ Insufficient amount results in denial✕ High
4

Signature

Authorized officer signature · Signature block

⚠ Missing signature invalidates request✕ High

Before you submit

  1. 1Use the latest edition of Form 965‑C
  2. 2Enter corporation name exactly as on IRS records
  3. 3Check EIN for typographical errors
  4. 4Confirm the original Form 965 due date
  5. 5Calculate the correct extension fee
  6. 6Attach payment proof or include check
  7. 7Sign and date the form
  8. 8Mail to the correct IRS address with postage tracking
  9. 9Retain a copy of the mailed package and receipt

How to file this form

  1. 1Download Form 965‑C from irs.gov/forms-pubs
  2. 2Complete identification and tax‑year sections
  3. 3Enter the requested extension period (up to six months)
  4. 4Calculate and attach the extension fee
  5. 5Sign the form as an authorized corporate officer
  6. 6Place the form and payment in an envelope addressed per the instructions
  7. 7Send via tracked mail before the original deadline

Known limitations

  1. 1No electronic filing option is available
  2. 2Form only grants a six‑month extension; longer periods require special permission
  3. 3The fee amount may change annually; always verify the current rate
  4. 4IRS processing time is not guaranteed; expect several weeks for acknowledgment

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 965‑C is currently active for tax years beginning after 2022. Check the IRS website for any upcoming revisions before filing.

What changed or needs a fresh check

  • Edition date – verify the form is the 2024 edition or later
  • Fee – confirm the current extension fee amount in the instructions
  • Mailing address – use the address for corporate tax extensions, not individual returns
  • Signature line – ensure the corporate officer signs
  • EIN format – nine‑digit number with hyphen

Form Preview

Form 965C page 1

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Form 965C page 2

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Quick Facts

Corporations that are required to file Form 965 and need extra time to complete it.
The form captures the corporation’s name, EIN, tax year, original filing deadline, and the length of extension requested, plus the required payment.
File Form 965‑C on or before the original Form 965 due date (usually the 15th day of the 4th month after year‑end). The extension, if granted, adds six months.
Mail the completed form, payment, and any required attachments to the IRS address listed in the form’s instructions. No electronic filing option is provided.
Late filing without an approved extension can trigger penalties and interest, and the extension request itself can be denied if the fee is missing or the form is incomplete.
1. Download the latest Form 965‑C from IRS.gov. 2. Fill in corporate identification, tax year, and the extension period you need. 3. Calculate and attach the required extension fee. 4. Sign the form and mail it to the address in the instructions before the original Form 965 deadline.

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Blank Form 965C↗Instructions↗

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After you file

  1. 1Keep the mailed receipt and tracking number
  2. 2File a copy of the submitted Form 965‑C with corporate records
  3. 3Monitor mail for the IRS acknowledgment of the extension
  4. 4If approved, note the new Form 965 due date in the corporate calendar
  5. 5Prepare Form 965 using the extended timeline
  6. 6Pay any remaining Net Worth Tax by the new deadline

Sources

  • SRCForm 965‑C title and purposeIRS official form header
  • SRCExtension fee amountIRS instructions for 2024 edition
  • SRCMailing addressInstructions section of Form 965‑C
  • SRCSignature requirementForm line instructions
  • SRCDeadline logicGeneral IRS extension rules for corporate returns
  • SRCNo electronic filingForm instructions note paper‑only submission
  • SRCSix‑month extension limitIRS guidance on Form 965‑C

Common confusion points

Extension fee vs. tax due

Fee is a flat amount, not a payment of the tax itself

→ Verify fee schedule

Form 965‑C vs. Form 965‑D

C is for extension, D is for penalty relief after late filing

→ Check purpose before filing

Mailing address variations

Different addresses for domestic vs. foreign corporations

→ Use address in current instructions

Six‑month limit

Some think any length can be requested

→ Only up to six months is permitted

Workflow map

Related forms and next steps

4 signals

Before

Form 965 – Corporate Net Worth Tax return

Current

965C

After

Form 965 – Filed by new extended deadline

Often used with

Form 965‑C – Extension request

⚠ If something goes wrong

  • Form 965‑D – Request for penalty abatement

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Copyright & Licensing - US Government Forms

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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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