Form 56
Notice of Fiduciary Relationship

What Form 56 does

Form 56 notifies the IRS that a fiduciary relationship has been created or has ended under IRC 6903, and gives notice of qualification under IRC 6036 for receivers and assignees for the benefit of creditors. Once notice is given, the IRS treats the fiduciary as if it were the taxpayer: the fiduciary has both the right and the responsibility to file returns, pay tax, and receive notices on the taxpayer’s behalf.

It is not a power of attorney. A representative on Form 2848 is the taxpayer’s agent with only the authority granted; a fiduciary stands in the taxpayer’s place. In practice the fiduciary files Form 56 first and then signs any Form 2848 authorizing a representative for the estate or trust.

Filing mechanics

• One form per taxpayer: an executor files one Form 56 for the decedent (final Form 1040, using the decedent’s SSN) and a separate one for the estate (Form 1041, using its EIN). For a Form 706 estate, the form shows the decedent’s SSN and the estate’s EIN.
• One form per fiduciary: co-executors or co-trustees each file, or otherwise give notice.
• Scope: lines 3 and 4 identify the taxes and forms (income, estate, gift, GST, employment, excise; 706, 709, 941, 1040, 1041, and others). If the authority covers only certain periods, list them on line 5b.
• Where: the service center where the person for whom the fiduciary is acting files returns, by mail. Receivers and assignees for the benefit of creditors must file within 10 days of appointment with the IRS insolvency function (MS 5027 DAL, Dallas, TX 75242) and may also file with the service center for 6903 purposes.
• What it cannot do: it does not update the taxpayer’s last known address (use Form 8822 or 8822-B), and it cannot be used to request copies of notices.

Form 56, Part I, Section A

Which authority box applies

Your role	Line 1	Date and proof
Executor named in a will, appointed by the court	1a	Date of death; attach letters testamentary or a court certificate
Court-appointed administrator, no will	1b	Date of death; attach letters or a court certificate
Guardian, custodian, or conservator	1c	Date of appointment
No will and no court appointment; you are the sole person in charge of the property	1d	Date of death
Trustee under a trust instrument	1e	Date of appointment or transfer of assets
Bankruptcy trustee, receiver, or assignee for the benefit of creditors	1f	Date of assignment or appointment
Anything else	1g	Describe the authority and the date

Why the timing matters

Until the IRS has notice under 6903, a notice of deficiency mailed to the taxpayer’s last known address is sufficient even if the taxpayer has died or is under a legal disability (IRC 6212(b)(1)), so a notice sent to a decedent’s old address can still start the clock on the estate. Filing Form 56 early routes correspondence to the person who can respond. It is also the practical foundation for later steps like requesting a prompt assessment on Form 4810 or discharge from personal liability on Form 5495.

Ending the relationship

When the administration ends, or a fiduciary resigns or is replaced, Part II of a new Form 56 revokes or terminates the prior notice, in full or in part, and can name a substitute fiduciary. A successor still has to file their own Form 56. Without a termination, the IRS may continue to treat the former fiduciary as responsible for the taxpayer’s matters.

What we handle

• Form 56 for the decedent, the estate, and each trust at the start of the engagement
• Coordination with the EIN application and Form 2848 for representation
• Scoping the tax types, forms, and periods covered
• Terminations and substitutions when fiduciaries change or the administration closes
• Follow-through to prompt assessment and discharge requests

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