IRS Form 56
IRS Form 56 explained: Who must file it?
IRS Form 56 is used to notify the IRS that a fiduciary has authority to act on behalf of a taxpayer, estate, trust, or other entity. The form is generally filed when a fiduciary relationship begins or ends and does not create legal authority by itself.


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Table of Contents
Key IRS Form 56 rules at a glance
|
Question |
Answer |
|
What is IRS Form 56? |
A notice used to tell the IRS that someone is acting as a fiduciary for a taxpayer, estate, trust, or entity |
|
Who typically files it? |
Fiduciaries acting on behalf of a taxpayer, estate, trust, or other entity |
|
Is it a tax return? |
No |
|
Does it create legal authority? |
No, it only notifies the IRS of existing authority |
|
Does it replace Form 2848? |
No |
|
Can it be used to change an address? |
No |
|
Do most US expats need it? |
No |
Who needs to file IRS Form 56?
Executors, trustees, guardians, conservators, receivers, and assignees for the benefit of creditors may need to file Form 56 when they begin or end a fiduciary relationship. The table below shows some of the most common situations where Form 56 may be required.
Common fiduciaries who may need to file Form 56
|
Fiduciary role |
May need Form 56? |
Example |
|
Executor or personal representative |
Yes |
Administering a deceased parent’s estate |
|
Trustee |
Yes |
Managing a family trust |
|
Guardian |
Yes |
Handling finances for an incapacitated adult |
|
Conservator |
Yes |
Managing a person’s financial affairs under legal appointment |
|
Court-appointed receiver |
Yes |
Managing assets under court supervision |
|
Assignee for the benefit of creditors |
Yes |
Administering assets for creditors |
|
Tax preparer |
No |
May need Form 2848 or Form 8821 if authorized to represent the taxpayer or access tax information |
|
Family member without legal authority |
No |
Assisting informally without appointment |
Common misconception: Being a spouse, child, or other close relative does not automatically give someone authority to deal with the IRS on another person’s behalf. In most cases, the IRS requires legal authority before recognizing someone as a fiduciary.
When is IRS Form 56 required?
Form 56 is generally required when a fiduciary seeks to act before the IRS on behalf of a taxpayer, estate, trust, or entity, or when that fiduciary relationship ends.
Common situations include:
- Appointment as executor of an estate
- Appointment as executor or administrator of an estate
- Appointment as trustee of a trust
- Appointment as guardian or conservator
- Appointment as a receiver or assignee for the benefit of creditors
- Termination of fiduciary duties
- Replacement of one fiduciary with another
Example: An American abroad becomes an executor
A US citizen living in Australia is appointed executor of a parent’s estate in the United States. Because they are now responsible for handling certain tax matters for the estate, they may need to file Form 56 so the IRS recognizes their fiduciary status.
Note: If the estate has US filing obligations, the executor may also need to obtain an EIN for the estate and consider whether Form 1041 is required.
What authority does IRS Form 56 give a fiduciary?
Form 56 allows the IRS to recognize an existing fiduciary relationship, but it does not create that relationship.
Once the IRS recognizes the fiduciary relationship, the fiduciary is generally treated as standing in the taxpayer’s place for the covered tax matters. Depending on the circumstances, that can include:
- Receiving IRS correspondence
- Communicating with the IRS
- Filing tax returns for the taxpayer, estate, or trust
- Paying taxes owed on behalf of the taxpayer
- Addressing compliance matters and responding to IRS notices
The scope of authority depends on the underlying legal appointment. A trustee’s powers may differ from those of an executor, guardian, conservator, or receiver.

Need help with IRS Form 56? Get expert guidance today.
How do you complete IRS Form 56?
The process generally involves five steps.
Part I: Identification
Provide information about the fiduciary, including name, address, and taxpayer identification number. You will also enter details about the taxpayer, estate, trust, or other entity for which you are acting.
Part II: Authority
Indicate the type of fiduciary relationship you have, such as executor, administrator, trustee, guardian, conservator, receiver, or another court-appointed fiduciary.
Section A: Court and administrative proceedings
Complete this section if your fiduciary authority arises from a court appointment or other legal proceeding. Provide details about the court or proceeding where applicable.
Section B: Nature of liability and tax matters
Identify the tax matters covered by the fiduciary relationship, including the relevant tax years, tax forms, or periods involved.
Part III: Revocation or termination of notice
Use this section if you are notifying the IRS that the fiduciary relationship has ended or that a previously filed Form 56 should no longer apply.
Part IV: Signature
Review the information for accuracy, then sign and date the form before submitting it to the IRS.
Filing tip: Before submitting Form 56, check whether you need to provide documents showing your fiduciary authority. Court-appointed executors of testate estates generally should attach current letters testamentary or a court certificate. Missing documentation can delay IRS processing.
Where do you file IRS Form 56?
Form 56 is generally filed with the IRS office where the person, estate, trust, or entity for whom you are acting is required to file tax returns. Because filing locations can change, check the latest IRS instructions before submitting the form.
What are the most common Form 56 mistakes?
1. Using Form 56 to change an address
The IRS specifically states that Form 56 is not a change-of-address form. Taxpayers who need to update an address generally use Form 8822 or Form 8822-B instead.
2. Confusing Form 56 with Form 2848
Form 56 notifies the IRS of a fiduciary relationship. Form 2848 authorizes someone, such as a tax professional, to represent a taxpayer before the IRS.
3. Failing to notify the IRS when fiduciary duties end
The IRS should be informed when a fiduciary relationship terminates.
4. Assuming family status creates authority
Being a spouse, child, or sibling does not automatically allow someone to act before the IRS.
Do US expats need to file Form 56?
Most Americans abroad will not need Form 56 unless they are handling tax matters for another person, estate, trust, or entity. The form generally becomes relevant only when an expat acts as a fiduciary for someone else.
For that reason, expats involved in estates or trusts may benefit from professional guidance, especially when US and foreign tax rules overlap.
Frequently Asked Questions
Does Form 56 expire?
No. The fiduciary relationship generally remains in effect until it ends or the IRS is notified of a change.
Can more than one fiduciary file Form 56?
Yes. If there is more than one fiduciary, each fiduciary generally must file Form 56.
Does filing Form 56 make a fiduciary personally liable for taxes?
Not automatically. However, fiduciaries can face personal liability in some situations depending on their legal duties, how they handle assets, and whether taxes are paid before distributions.
Can someone living outside the US serve as a fiduciary?
Yes. US citizens and other individuals living abroad may serve as executors, trustees, or other fiduciaries if they meet the legal requirements.
Can Form 56 be filed electronically?
Current IRS instructions do not provide an e-file option for Form 56. The form is generally submitted to the IRS service center where the represented taxpayer, estate, trust, or entity files its tax returns.
How long does it take the IRS to process Form 56?
The IRS does not publish a specific processing timeframe for Form 56. Processing times can vary depending on IRS workload and the taxpayer’s circumstances.
What happens if Form 56 is never filed?
The IRS may continue directing correspondence to the taxpayer rather than the fiduciary. This can create delays, missed notices, and administrative complications.
