If a debit card charge isn't yours, call your bank immediately using the number on the back of the card, on your statement, or in the bank's official app. Lock the card if that option is available and report the transaction as unauthorized. Don't wait for a pending charge to post before warning the bank.

For U.S. consumer accounts, Regulation E generally provides an error-resolution process for unauthorized electronic fund transfers. Timing matters: reporting a lost or stolen card or access device within two business days can limit liability, and an error shown on a statement generally should be reported within 60 calendar days.

A purchase problem is different from fraud. A merchant refund, a bank error investigation, and a card-network dispute are separate routes. The right next step depends on how the money moved and what actually went wrong.

First, classify the debit card problem

Problem Do this first Route to ask about
You don't recognize a posted card purchase Call the bank, lock the card, and report an unauthorized transaction Regulation E error investigation and the bank's card-dispute process
Your card, PIN, or other access device was lost or stolen Notify the bank as soon as you learn about the loss Regulation E liability rules
The amount is wrong or the charge is duplicated Ask the seller to correct it and report the error to the bank Merchant correction or bank error investigation
Goods weren't delivered or weren't as described Contact the seller in writing and save the response Merchant refund process and, if available, the bank's network dispute process
An ATM gave you the wrong amount of cash Give the bank the date, amount requested, and amount received Electronic fund transfer error investigation
A recurring payment continued after cancellation Contact the merchant and the bank; find out whether it's a card payment or ACH debit Card-payment dispute or ACH stop-payment procedure
You approved a payment after a scammer persuaded you Describe exactly what you approved and how the scam happened A rail-specific fraud review; treatment may differ from a transfer made without your authorization

Not every dispute is a "chargeback." That term is commonly used for an issuer-initiated card dispute. Regulation E applies to particular electronic fund transfers and account errors. A merchant refund is money the seller sends back, while provisional credit from the bank is temporary and isn't necessarily a final decision.

Check the transaction, but don't delay a fraud report

Before calling, look at:

Merchant names are sometimes abbreviated, so a quick check can prevent a mistaken dispute. Still, don't spend days trying to identify a suspicious entry. Tell the bank you're checking the description while asking it to protect the account.

How to report an unauthorized debit card charge

1. Secure the account

Use the bank's card-lock feature if it has one, then call through a trusted number. Ask whether the bank will:

Don't give an unsolicited caller or texter a one-time verification code. If someone claims to be from your bank, end the conversation and call the trusted number yourself.

2. Describe the error clearly

Give the bank:

Use accurate terms, but don't worry if the bank uses a different label for its internal process. Explain what happened in plain language: for example, that you did not make or authorize the purchase, that the ATM dispensed less cash than requested, or that a payment was duplicated.

A phone call may start the process. Regulation E generally permits oral notice, although the bank may request written confirmation within 10 business days after an oral report. Ask how it wants the confirmation and where to send it.

The FTC's sample letter for disputing credit and debit card charges gives a useful structure. Keep a copy of anything you send. Hold on to original receipts, letters, and other documents, and submit copies or secure digital files instead.

3. Get a case number

Ask for the dispute or fraud case number, the expected response date, and the secure method for sending evidence. Record:

If the bank tells you to contact the merchant first, explain whether you are reporting fraud or a purchase problem. A merchant conversation may help with a delivery or billing error, but it isn't a substitute for promptly reporting a transaction you believe was unauthorized.

Regulation E deadlines that matter

These are general U.S. rules for consumer accounts, not legal advice.

Timing Why it matters
Within two business days after learning that your card or other access device was lost or stolen Reporting promptly generally limits liability for unauthorized transfers to the lesser of $50 or the amount transferred before notice, subject to the facts and applicable exceptions.
Within 60 calendar days after the statement showing the unauthorized transfer was sent or made available This is the key Regulation E notice period for an error shown on a periodic statement. Waiting longer can expose you to losses from later transfers that the bank could have prevented after notice.
Within 10 business days after an error notice The bank generally must complete its investigation within this period or follow the rules for extending the investigation and providing provisional credit.
Up to 45 days, or up to 90 days in certain situations If more time is permitted, the bank generally must provide provisional credit while it continues investigating, subject to the rule's conditions and exceptions.
Within the bank's stated network-dispute deadline Merchandise, delivery, cancellation, and other purchase disputes may follow card-network and bank procedures rather than the Regulation E error process.

The 60-day period usually relates to when the statement was sent or made available, not simply the purchase date. It also doesn't replace the separate two-business-day rule that can apply after loss or theft of a card or access device.

You may hear that Visa or Mastercard disputes use a 120-day window. That isn't a universal deadline. The dispute category, expected delivery date, transaction type, issuer, and network rules can change the starting point and response period. Your bank may also give you an earlier practical deadline so it has time to submit a claim. Follow the date in the bank's instructions and report the problem as soon as you see it.

Problems with goods, services, or merchant refunds

Regulation E is designed for unauthorized transfers and specified account errors. It doesn't automatically require a refund whenever a product is defective, late, or disappointing.

For a merchant-related problem:

  1. Check the seller's delivery, cancellation, and refund terms.
  2. Contact the seller promptly through a method that creates a record.
  3. State the transaction date, amount, order number, and correction you want.
  4. Save emails, chat transcripts, return tracking, photographs, and the seller's response.
  5. Ask for a refund reference or written confirmation if the seller agrees to refund you.
  6. Tell the bank what the seller said and ask whether its card-dispute process covers the situation.

Contacting the seller may be the quickest solution, but don't change the facts to fit a particular dispute category. A purchase you authorized but later regretted isn't automatically an unauthorized transaction. If a scammer persuaded you to approve the payment, describe that sequence honestly; the bank may review it differently from a stolen-card purchase.

For a recurring charge, cancel with the merchant in writing and save the cancellation date. Then ask the bank whether the payment is moving through the card network or through ACH. The process for stopping future ACH debits isn't the same as disputing a recurring card payment.

Evidence that helps the bank review the claim

A short timeline is more useful than a folder of unexplained screenshots. Include:

Keep the originals. Don't send your full card number through ordinary email or to a contact from a suspicious message. Use the bank's secure message center or the address it provides for disputes. If you mail the notice, keep proof of delivery.

A concise written explanation could look like this:

I am disputing a debit card transaction of $ posted on . The transaction appears as on my statement. I believe it is incorrect because . Please investigate the error and tell me what additional information you need.

What happens after you report the charge

The bank may ask where your card was, who had access to it, whether you recognized the merchant, and when you first noticed the transaction. Answer accurately and separate what you know from what you suspect.

The bank may issue provisional credit during the investigation. That credit is temporary. If the bank concludes that no error occurred, it can generally remove the provisional credit after giving the required explanation and notice. Ask for the written findings and the information the bank relied on.

If you don't receive an update by the expected date, use your case number when you contact the dispute department. Ask:

If the bank denies the dispute

Ask for the decision in writing if you don't already have it. Then:

  1. Identify the specific reason for the denial, such as late notice, merchant evidence, an authorization finding, or a mismatch between the reported problem and the payment rail.
  2. Compare that reason with your statement, timeline, and supporting documents.
  3. Send a focused reconsideration request with your case number and any new evidence.
  4. Ask for a supervisor or the bank's formal complaint team.
  5. Keep following the bank's stated process for any newer unauthorized transaction.
  6. If the matter remains unresolved, contact the regulator that supervises the institution.

The FDIC's consumer complaint process explains what information to include and how to verify a bank. The FDIC says its Consumer Response Unit generally responds within 14 days, but a regulator complaint doesn't replace the bank's dispute deadline or guarantee a refund.

If the account is with a credit union, fintech, prepaid provider, or another institution, the appropriate regulator and contract may be different. Check the institution's identity and keep its internal complaint process moving while you find the correct escalation route.

Habits that help prevent debit card fraud

Early detection gives you more time to report a problem. Consider:

For larger purchases, some consumers choose a credit card because credit-card billing rules differ from debit-account protections. That doesn't make every credit-card dispute eligible for a refund, and it doesn't change the steps for a debit transaction that already occurred.

Common questions

Can I dispute a pending debit card charge?

A pending charge may be an authorization hold rather than a completed transaction, and the bank may not open a formal dispute until it posts. If you suspect fraud, report it and secure the card immediately anyway.

Does the 60-day period start on the purchase date?

For a Regulation E error shown on a statement, the notice period generally relates to when the statement was sent or made available. Card-network rules for other disputes may use a different starting point, so report the problem as soon as you see it.

Do I have to contact the merchant before my bank?

Not for a transaction you believe was unauthorized. For a delivery, billing, cancellation, or refund problem, contacting the merchant is often useful and creates evidence. Ask the bank about its own requirements rather than assuming one rule applies to every dispute.

Is a debit card chargeback guaranteed to return my money?

No. A merchant dispute can depend on network rules, evidence, timing, and the transaction type. Regulation E may provide an investigation process for an unauthorized electronic fund transfer, but provisional credit is not a final finding.

What should I do after a denial?

Request the written reason, gather missing evidence, ask for reconsideration, and escalate to the institution's regulator if necessary. Keep a dated record of each step. For a new unauthorized transaction, call the bank promptly instead of waiting for an appeal.