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Official form guide
IRS Form 2678 is the Application for Extension of Time to File a Partnership Return. Use it when a partnership needs more than the standard six‑month filing period for Form 1065.
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IRS Form 2678 is the Application for Extension of Time to File a Partnership Return. Use it when a partnership needs more than the standard six‑month filing period for Form 1065.
Plain English
If you run a partnership and can’t get your tax return ready by the deadline, you file Form 2678 to ask the IRS for extra time. It’s a short request that tells the IRS how long you need and why.
Submission Date
AI co-pilot
Form selector
Partnership wants to amend a filed return
Used to correct errors after filing
✓ Verify original return first
Corporation needs extension
Applies to corporations and certain partnerships
✓ Confirm entity type before filing
Non‑profit organization needs extension
Specific to tax‑exempt entities
✓ Use only for 990 series
The extension request must be filed before the partnership’s original Form 1065 due date (usually March 15 for calendar‑year partners). If you already have an extension, you must submit Form 2678 before that extended deadline. The IRS does not provide a separate grace period.
Checklist
Partner EIN
IRS EIN confirmation letter · IRS notice or prior return
Tax year
Partnership tax year start/end dates · Prior year return
Signature
Authorized partner signature · Physical or electronic signature
Reason statement
Written explanation of delay · Internal memo or accountant note
Field map
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.
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Fillable formOpen in Editor->Form 2678 is currently active for the 2024 tax year. Check the IRS website for any updates before filing.
Quick Facts
Downloads
Extension length
Partners think they can get unlimited time
→ Verify total days do not exceed 180
Who can sign
Some assume any partner can sign
→ Only an authorized partner or officer may sign
Electronic filing
Belief that all extensions are e‑fileable
→ Confirm e‑filing is available for your partnership type
Form versus notice
Mistaking Form 2678 for a penalty notice
→ Use Form 2678 only to request more time
Tax year mismatch
Using calendar year dates for a fiscal‑year partnership
→ Match the tax year on the original Form 1065
Workflow map
Before
Current
After
Often used with
⚠ If something goes wrong
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