Read the document, confirm that it is still effective, and ask the bank for its required signature and account-access process.
Document and account guide
How to Sign a Check as Power of Attorney
A bank may accept a power of attorney during life, but using the same authority after the account owner dies can create a serious problem.
The short answer
An agent signs in a disclosed representative capacity while the power of attorney remains effective; that authority ordinarily ends at the principal's death.
Verify the agent, principal, granted power, effective period, bank acceptance, transaction purpose, and whether death has ended the authority.
Do not sign when the principal has died, the document is revoked or unclear, the transaction benefits the agent, or the bank has not accepted the authority.
Your working resultA dated estate-settlement record showing the evidence checked, the decision reached, and the next unresolved action.
Keep in mind
Use the post-death bank-account processCompleting the practical task does not replace the authority, ownership, court, tax, or professional decision that may control it.
01Confirm the document fits
02Gather its companion evidence
03Know what comes next
On this page
To sign a check as power of attorney, write the account owner’s name, sign your own name, and state that you are acting as agent under a power of attorney. Do not sign only the owner’s name.
Confirm the bank’s preferred format before issuing the first check, because its account setup and review process may differ.
The practical risk is that a valid expense can still be rejected, or look like a personal payment, when the signature and authority record are unclear. This guide tests authority before payment, shows a traceable signature format, and explains the handoff when the principal dies.
What is the correct power-of-attorney signature format?
The correct format identifies the account owner and your signature, then states your role as agent. The Consumer Financial Protection Bureau gives this example: “Juan Doe, by Martina Roe under POA.” It also gives “Martina Roe, as agent for Juan Doe” as an acceptable style when signing documents.
On a check, use one clear format consistently:
[Account owner’s name], by [your signature], as agent under POA
or
[Your signature], as agent for [account owner’s name]
The bank may print the owner’s name on the check and ask you to sign only your name plus the agency wording. Ask first.
The CFPB’s national guide for agents under a power of attorney explains that an agent acts for the principal and must make that role clear.
That leads to the next practical question: What should you do before signing the first check?
What should you do before signing the first check?
Give the bank the power-of-attorney document and complete its agent-access process before signing the first check. The bank must review the document and add your authority to the account before you rely on that access.
Take these steps:
- Bring the complete power-of-attorney document, not a single signature page.
- Bring current identification and any certification the bank requests.
- Ask the bank to confirm that the power covers the proposed transaction.
- Ask how the account will display your authority online and on checks.
- Get the bank’s preferred signature format in writing if possible.
- Order agent checks if the bank offers them.
- Test access with a necessary, ordinary payment before a time-sensitive bill is due.
The CFPB describes a power of attorney as one way to let a trusted person help with bill paying and banking in its consumer guidance on financial helpers. Read the document itself.
A limited power may permit only named acts or operate only after a stated event.
With that record in hand, ask the next question: What records must an agent keep?
What records must an agent keep?
An agent must keep the owner’s money separate, preserve receipts, and maintain a clear record of every transaction. A check memo alone is not enough.
For each payment, keep:
- the invoice or written reason for the expense
- the check number, amount, date, merchant, and payee
- a copy or bank image of the cleared check
- any approval required by the power-of-attorney document
- a note explaining how the payment benefited the account owner
Never deposit the owner’s funds into your personal account for convenience. Do not make gifts to yourself or others unless the document and state law authorize them.
Stop if the authority is uncertain. The CFPB’s Managing Someone Else’s Money program centers the agent’s duties on acting in the person’s best interest, managing carefully, keeping money separate, and keeping good records.
After a death, authority changes. The guide to canceling credit cards after death explains the separate steps for closing card accounts.
This decision changes the answer to the next question: Can an agent reimburse themselves by check?
Can an agent reimburse themselves by check?
An agent may reimburse a documented expense only when the power-of-attorney document and applicable law permit it. The reimbursement should match the actual expense, and the file should contain the original receipt and a short explanation.
Compensation is different from reimbursement. Do not write yourself a fee check because you spent time helping.
Check the document and state rules, and get legal advice if the payment could benefit you personally or be disputed by family members.
Once this is documented, move to the next question: Does power of attorney continue after death?
Does power of attorney continue after death?
No, power-of-attorney authority ends when the account owner dies. The agent must stop signing checks and stop using cards or online banking under that authority.
After death, control shifts to the executor or court-appointed administrator, subject to beneficiary designations and account ownership. The bank will usually request a death certificate and proof of the executor’s authority.
You may then need an estate bank account for estate income and expenses.
Do not backdate a check or complete a transaction after learning of the death. Preserve the checkbook, statements, receipts, and a final transaction ledger for the person who will settle the estate.
The next part of the work answers this question: What if the bank rejects the signature or POA?
What if the bank rejects the signature or POA?
If the bank rejects the signature or document, ask for the reason and the bank’s correction process in writing. The problem may be an incomplete copy, missing certification, account restriction, outdated bank record, or a transaction outside the document’s stated powers.
Start with the branch or agent-services team. Supply the complete document and requested identification.
Do not alter the legal document yourself. If delay threatens housing, care, insurance, or taxes, contact a lawyer familiar with your state’s power-of-attorney law.
If the bank has not accepted the POA
Do not keep rewriting or depositing the check until the bank confirms its required format. Ask the bank to review the complete power-of-attorney document, any certification or affidavit it requires, your identification, and the exact account title.
Request the rejection reason in writing and ask whether its legal review team needs more evidence.
For an endorsement, keep the principal and agent roles visible. A bank may require wording such as “Principal's name, by Agent's name, agent under power of attorney,” but its deposit policy controls the format it will accept.
Never sign only the principal's name or make the agent look like the payee. If the principal has died, stop: the power of attorney has ended, and the estate representative must use court authority instead.
That leads to the next practical question: How should an agent decide whether a check is appropriate?
How should an agent decide whether a check is appropriate?
An agent should issue a check only after confirming three things: the payment is authorized, it benefits the account owner, and the file can explain it later. A bank’s willingness to process a check does not settle whether the agent fulfilled their duties.
Use a simple pre-payment review:
| Question | Evidence to keep | Reason to pause |
|---|---|---|
| Is this expense for the principal? | Invoice, contract, or care statement | The payment mainly benefits the agent or another person |
| Does the POA cover it? | Relevant provision or legal advice | The document limits gifts, real estate, or self-directed payments |
| Is the amount accurate? | Current bill and calculation | The payee requested cash or an unexplained rounded amount |
| Can the account afford it? | Current balance and upcoming obligations | The check could interrupt housing, care, insurance, or taxes |
| Can someone reconstruct the decision? | Memo and receipt, connected to the ledger entry | There is no written purpose or supporting record |
Routine bills such as rent and utilities are usually easier to support than gifts or loans. The same is true for insurance and documented care expenses.
Property transfers and payments to the agent require closer review. When a transaction creates a personal benefit, obtain advice before signing rather than trying to justify it afterward.
With that record in hand, ask the next question: What does a complete check record look like?
What does a complete check record look like?
A complete check record connects the authority, the bill, the payment, and the cleared transaction. Keep those items together instead of scattering them across email, a checkbook, and a banking app.
For example, suppose an agent pays a $240 home-insurance premium. The file would contain the insurer’s invoice, a note that coverage protects the principal’s home, check number and date, a copy of the signed check, and the later bank image showing that it cleared.
The ledger would identify the property and policy period. If the executor later reviews the payment, the purpose is immediately clear.
Use the memo line for a short reference such as an invoice or policy number, but avoid putting sensitive medical or identity information on a check. The supporting file can hold the fuller explanation.
This decision changes the answer to the next question: How should authority be handed off when the principal dies?
How should authority be handed off when the principal dies?
The agent should stop transacting, preserve the account records, and give the executor a dated closing package after learning of the principal’s death. A clean handoff prevents an authorized lifetime payment from being confused with an improper post-death transaction.
The package should include:
- the complete power-of-attorney document and any bank acceptance record
- the transaction ledger through the date authority ended
- outstanding checks, pending transfers, and scheduled payments
- recent statements and images of cleared checks
- receipts and invoices that have not yet been matched
- a list of cards, online access arrangements, and recurring payments
- the location of physical checkbooks and uncashed incoming checks
Do not close the owner’s account, redirect funds, or finish a pending payment under the old authority unless the bank and the newly authorized estate representative confirm the proper path. The date of death creates a firm dividing line in the records even when the family’s practical work continues without a break.
Frequently asked questions
Do I sign the principal’s name or my own name?
Sign your own name and state that you are acting for the principal under power of attorney. The bank may require the principal’s printed name before your signature.
Can I sign only “POA” after my name?
That shorthand may be unclear. Use “as agent for [name]” or “under POA” and follow the bank’s approved format.
Can a power-of-attorney agent write checks to themselves?
Only for a properly authorized, documented reimbursement, gift, or payment. Because self-directed payments create conflict concerns, review the document and state law first.
Can I use the owner’s debit card instead?
Do not pose as the owner. Ask the bank for agent access or a card issued in your authorized role.
What happens to uncashed checks when the owner dies?
The bank decides whether a check issued before death can be honored after notice of death, subject to account terms and applicable law. Give the check and supporting invoice to the executor and bank for review.
How should the agent hand records to the executor?
Provide statements, check images, receipts, the transaction ledger, and the power-of-attorney document. The guide to finding an estate tax ID number shows how the executor can recover another important record without exposing it in a shared task list.
Your next step
Use the Estate Settlement Checklist: 7 Steps for Executors and Families to place this task in the full sequence. For the wider context, read Power of Attorney Explained: What It Is, How It Works, and When It Ends.
Then continue with Estate Bank Accounts: What Executors Need to Open and Manage One when that decision becomes active.
The decision at the end of this page
Know what must exist before this document is used
Confirm the issuer, evidence, companion documents and the next process step before signing or submitting anything.
Common questions
Quick answers
What is the correct power-of-attorney signature format?
The correct format identifies the account owner and your signature, then states your role as agent. The Consumer Financial Protection Bureau gives this example: “Juan Doe, by Martina Roe under POA.” It also gives “Martina Roe, as agent for Juan Doe” as an acceptable style when signing documents.
What should you do before signing the first check?
Give the bank the power-of-attorney document and complete its agent-access process before signing the first check. The bank must review the document and add your authority to the account before you rely on that access.
What records must an agent keep?
An agent must keep the owner’s money separate, preserve receipts, and maintain a clear record of every transaction. A check memo alone is not enough.