Illinois Power of Attorney Laws: Durable, Medical, and Financial POA (2026)
Illinois Power of Attorney Laws: Durable, Medical, and Financial POA (2026)
Illinois governs all powers of attorney under a single statute: the Illinois Power of Attorney Act, 755 ILCS 45. Article II establishes the rules for durable powers of attorney, Article III provides the statutory short form for property and financial matters, and Article IV governs health care powers of attorney. A property POA signed under this Act is durable by default: it survives the principal's incapacity and remains in effect until the principal's death or a written revocation. To execute a valid property POA, Illinois requires the principal's signature, the signature of at least one witness, and acknowledgment before a notary public. Health care POAs under Article IV require one witness but do not require notarization.
What a Power of Attorney Does in Illinois
A power of attorney is a written document in which a principal authorizes an agent (also called an attorney-in-fact) to take legal and financial actions on the principal's behalf. The agent's authority is defined by the terms of the document and by the Illinois Power of Attorney Act, 755 ILCS 45.
Illinois recognizes general financial POAs, limited POAs for a specific purpose, and durable POAs that remain effective if the principal becomes incapacitated. All three categories fall under 755 ILCS 45.
A power of attorney is not permanent. Every POA ends at the principal's death. Once the principal dies, the agent has no further authority, and the personal representative of the estate steps in. During the principal's lifetime, the agent acts as a fiduciary, meaning the agent must put the principal's interests first at all times.
The scope of an agent's authority depends entirely on what the document grants. An agent may handle banking, real estate, business transactions, and taxes, but only to the extent spelled out in the POA. Actions taken outside the document's scope are not legally binding on the principal.
Durable Power of Attorney for Property in Illinois
Under 755 ILCS 45/2-5, a property POA continues in effect notwithstanding the principal's disability or incapacity, unless the document itself specifies a termination date or event. If no termination date is filled in on the statutory short form, the POA is durable by operation of law.
This durability feature is one of the primary reasons people execute a POA while they are still healthy. If incapacity strikes and no durable POA exists, a family member must petition a court for guardianship to gain legal authority to manage the person's finances, a process that is costly, time-consuming, and public.
Durability does not mean the agent's authority is unlimited. The agent may only act within the powers granted by the document. Durability simply means the document stays in effect through incapacity rather than lapsing when the principal can no longer supervise the agent directly.
A property POA is distinct from a health care POA. The property POA covers financial and legal decisions. It does not authorize the agent to make medical decisions. Those require a separate instrument under Article IV of the same Act.
How to Create a Valid Illinois Power of Attorney
Illinois sets specific execution requirements for property POAs in 755 ILCS 45/3-3. To be effective, a property POA must meet all three of the following requirements:
1. Principal's signature. The principal must sign the document (or direct another person to sign in the principal's presence if the principal is physically unable to sign).
2. One witness. At least one witness must sign the document attesting to the principal's signature. The Act disqualifies the following persons from serving as witness: the principal's attending physician or mental health service provider, or a relative of that provider; an owner, operator, or relative of an owner or operator of a health care facility where the principal is a patient or resident; and a parent, sibling, descendant, or the spouse of a parent, sibling, or descendant of either the principal or any named agent or successor agent, regardless of whether the relationship is by blood, marriage, or adoption. The notary public who notarizes the document may not also serve as the witness.
3. Notarization. The principal must acknowledge the signature before a notary public. Notarization is mandatory for property POAs under 755 ILCS 45/3-3.
Notice to Agent. The statutory short form for property under 755 ILCS 45/3-3 consists of three required parts: (1) a Notice to the Individual Signing the Illinois Statutory Short Form Power of Attorney for Property (provided as a separate cover sheet in 14-point type); (2) the Illinois Statutory Short Form Power of Attorney for Property; and (3) a Notice to Agent. The Notice to Agent informs the agent of the fiduciary duties the agent assumes upon acting under the POA. The agent is not required to sign before the POA is valid, but the Notice to Agent must be part of the document package for the statutory form to have the effect prescribed by the Act.
A nonstatutory property POA (one that does not use the statutory short form) must also be executed by the principal, designate the agent and powers, bear at least one witness signature, and indicate notarization of the principal's signature. Nonstatutory forms meeting these requirements are valid under the Act.
What an Illinois Agent Can and Cannot Do
Once a property POA is effective, the agent's authority is shaped by the document and by 755 ILCS 45/2-7, which sets the agent's standard of care.
What the agent can do. The Illinois statutory short form for property lets the principal grant authority in up to 12 categories, which may include: real property transactions, personal property transactions, stock and bond transactions, banking and financial institution transactions, business operating transactions, insurance and annuity transactions, estate and trust transactions, legal claims and litigation, government benefit transactions, retirement plan transactions, tax matters, and making gifts. The principal chooses which categories to authorize. The agent can only act in the categories that are affirmatively granted.
Fiduciary duties. Under 755 ILCS 45/2-7, an agent who acts under the POA must: act in good faith for the benefit of the principal; use due care, competence, and diligence; act in accordance with the principal's known wishes and otherwise in the principal's best interests; and keep a complete record of all receipts, disbursements, and significant actions taken under the agency. An agent is not required to act, but once the agent does act, the standard of care applies in full.
Liability. An agent who violates the Act is liable to the principal or the principal's successors for the amount needed to restore the value of the principal's property to what it would have been without the violation, plus attorney's fees and costs.
What the agent cannot do. The agent may not make decisions that the document does not authorize. The agent may not make health care decisions under a property POA; those require a separate health care POA under Article IV. The agent cannot act after the principal's death.
Power of Attorney for Health Care in Illinois
Health care powers of attorney in Illinois are governed by Article IV of 755 ILCS 45, beginning at 755 ILCS 45/4-1. A health care POA gives the agent authority to make medical decisions for the principal when the principal cannot make or communicate those decisions personally.
Scope. A health care agent may consent to or refuse medical treatment, choose or discharge health care providers and facilities, decide on care settings (including nursing home placement), review medical records, and authorize or refuse life-sustaining treatment. The scope of authority must be stated in the document.
Execution requirements. The statutory short form for health care under 755 ILCS 45/4-10 must be signed by the principal and witnessed by at least one person who is 18 years of age or older. Notarization is not required for a health care POA. The witness may not be: the principal's attending physician or mental health service provider, or a relative of that provider; an owner, operator, or relative of an owner or operator of a health care facility where the principal is a patient; a parent, sibling, descendant, or the spouse of a parent, sibling, or descendant of either the principal or any agent or successor agent; or a named agent or successor agent under the health care POA.
Nonstatutory health care POAs. A nonstatutory health care document need only be executed by the principal, designate the agent, state the agent's powers, and comply with the limitations in 755 ILCS 45/4-5. It does not need to be witnessed or conform in any other way to the statutory short form.
Agent acceptance. The statutory health care form includes an agent acceptance section. The agent should review and sign to confirm awareness of the duties. Electronic signatures and computer-generated signature codes satisfy the execution requirements under Article IV.
Post-mortem authority. If the principal specifically authorizes it in the document, a health care agent may also have limited authority to make decisions regarding the principal's remains after death, such as directing burial, cremation, or organ donation.
Revoking or Ending an Illinois Power of Attorney
Property POA revocation. Under 755 ILCS 45/2-5, a principal may revoke a property POA at any time, provided the principal has the capacity to do so. No specific form or procedure is required. Revocation can be communicated in any manner to the agent or to any other person dealing with the subject matter of the agency. To protect against third parties relying on the old POA, it is best practice to send written notice of revocation directly to the agent and to any institution (bank, broker, insurer) that the agent has been using.
Health care POA revocation. Under 755 ILCS 45/4-6, a principal may revoke a health care agency at any time without regard to the principal's mental or physical condition. Revocation may occur by: physically destroying or defacing the document in a manner indicating an intent to revoke; a written revocation signed and dated by the principal (electronic or hard copy); or an oral or other expressed intent to revoke in the presence of a witness who is 18 or older and who signs and dates a writing confirming the expression.
Automatic termination. Every power of attorney, whether for property or health care, ends automatically at the principal's death. A property POA also ends if the document specifies a termination date and that date arrives, or if a court finds the POA was procured by fraud or undue influence.
Executing a new POA. Executing a new power of attorney does not automatically revoke a prior POA unless the new document expressly says so. If the principal wants the old POA to be replaced, the revocation should be explicit.
For a plain-English overview of how POAs work across all 50 states, see the Power of Attorney national guide.
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This page provides general legal information, not legal advice. Illinois power of attorney law is detailed and situation-specific. Consult a licensed Illinois attorney before executing or relying on any power of attorney document.
Page last reviewed: May 2026. Governing statute: 755 ILCS 45 (Illinois Power of Attorney Act).