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Official form guide
IRS Form 6112 is a notice used to inform the IRS of a change in the person who has custody of a taxpayer’s records or who is authorized to represent the taxpayer. File it whenever you replace a custodian or representative.
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IRS Form 6112 is a notice used to inform the IRS of a change in the person who has custody of a taxpayer’s records or who is authorized to represent the taxpayer. File it whenever you replace a custodian or representative.
Plain English
If you’re switching the person who keeps your tax papers or the person who talks to the IRS for you, you fill out Form 6112. It tells the IRS who’s now in charge of your file and who can receive communications.
Submission Date
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Changing only a tax preparer
Authorizes a new preparer
✓ Verify preparer’s EIN
Changing a representative for a specific case
Allows disclosure of information
✓ Confirm scope of authority
Replacing a deceased custodian
Declares death and new custodian
✓ Attach death certificate
The IRS does not set a hard deadline for Form 6112, but the notice should be filed as soon as the custodial change occurs. Delays can affect the timing of notices and any upcoming audits.
Checklist
Taxpayer SSN/EIN
Social Security card or EIN confirmation letter · Tax return header
Outgoing custodian info
Prior Form 6112 or account records · Custodian’s letterhead
Incoming custodian address
Utility bill or lease · Address proof
Effective date of change
Written agreement or email · Change agreement
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 6112 is currently active for the 2024 tax year. The IRS updates the instructions annually, so verify the edition date before filing.
Quick Facts
Downloads
Custodian vs. Representative
Terms are used interchangeably in some guides
→ Verify the role needed before filing
Form 2848 vs. 6112
Both involve representation but 2848 is for power of attorney only
→ Use 6112 when changing record custody
Effective date format
IRS expects MM/DD/YYYY
→ Using other formats can cause processing delays
Signature requirement
Only the outgoing custodian’s signature is accepted in some cases
→ Check instructions for who must sign
Mailing address changes
Service center addresses change yearly
→ Confirm the current address in the latest instructions
Workflow map
Before
Current
After
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