Yes, you can dispute a transaction, and your bank has a legal process for handling it

You can challenge a transaction on your checking account if you believe it was unauthorized, processed incorrectly, or never completed. Your bank is required by federal law to investigate your claim within a specific timeframe. The process is called a chargeback or dispute, depending on whether the transaction was made with a debit card or a check, and the bank must respond to you in writing with the outcome.

The speed of resolution depends on the type of transaction and whether your bank can reach the merchant quickly. Most disputes are resolved within 10 business days, though some take longer. During the investigation, your bank may temporarily credit your account while they work through the claim — but this is not may provide, and you should not assume the money is yours until the dispute is officially closed in your favor.

Key Takeaways

  • Contact your bank as soon as you notice the problem; most banks require you to report within 60 days of the transaction appearing on your statement.
  • Your bank will ask you to describe what happened in writing and may request supporting documents like receipts, emails, or proof that you cancelled a service.
  • Debit card disputes and check disputes follow different timelines and rules, so tell your bank exactly which type of transaction you are disputing.
  • Your bank must acknowledge your dispute within one business day and complete their investigation within 10 business days in most cases, though some situations allow up to 45 days.
  • If the bank rules against you, you have the right to submit a written statement explaining your side, which becomes part of your permanent dispute record.

How to start a dispute with your bank

Call your bank's customer service number or visit a branch in person. Tell them the transaction date, the amount, and the merchant name. Explain clearly what went wrong — for example, "I was charged twice for the same order" or "I cancelled this subscription but was still charged" or "I did not authorize this transaction." Write down the name of the person you spoke with and the date and time of the call.

Your bank will ask you to submit your dispute in writing, usually through a form on their website, by mail, or in person. Some banks allow you to start the dispute through their mobile app or online banking portal. Do not skip this step — a verbal report alone is not enough. The written record protects both you and the bank and creates an official timeline.

Gather any documents that support your claim: a receipt showing a different amount, an email confirming you cancelled a service, a screenshot of the charge, a copy of your lease if you are disputing a utility bill, or a message from the merchant saying the transaction was a mistake. You do not need every document to file a dispute, but the more evidence you have, the faster the bank can investigate.

What happens after you file a dispute

Your bank must send you a written acknowledgment within one business day of receiving your dispute. This letter will include a reference number, the amount in question, and the date by which the bank will complete their investigation. Keep this letter — you will need the reference number if you have questions later.

The bank then contacts the merchant or the merchant's bank to ask what happened. If the merchant confirms the charge was a mistake or unauthorized, the dispute is usually resolved in your favor within a few days. If the merchant says the charge was legitimate, the bank may ask you for more information or may side with the merchant.

During the investigation, your bank may place a temporary credit in your account — this is called a provisional credit. This does not mean you have won the dispute; it means the bank is holding the money while they investigate. If the bank later decides the merchant was right, they will remove this credit from your account. Read your acknowledgment letter carefully to see whether a provisional credit was issued and when it will appear.

Different rules for debit cards versus checks

Debit card disputes are governed by Regulation E, a federal rule that requires banks to investigate within 10 business days. If the bank cannot finish by day 10, they must return the money to your account temporarily while they continue investigating. The full investigation can take up to 45 days, but you get your money back after 10 days whether or not the dispute is resolved.

Check disputes follow different rules and usually take longer. If you claim a check was forged, altered, or processed twice, the bank will contact the merchant's bank to examine the check image. This can take two to four weeks. You are not protected by the same 10-day rule, so the bank may not credit your account while they investigate.

If you are disputing an online bill payment or a recurring charge (like a subscription), tell your bank which type it is. Online payments and recurring charges are treated like debit card transactions and follow the 10-day rule. This matters because it determines how long you have to wait for an answer and whether you get your money back temporarily.

What the bank needs from you to investigate

Your bank will ask specific questions depending on the type of dispute. For an unauthorized transaction, they will ask whether you recognize the merchant, whether anyone else had access to your card or account number, and whether you reported the card lost or stolen. Answer as completely as you can, even if the answer seems obvious.

For a duplicate charge, the bank will ask for the transaction date, the amount, and proof that you were charged twice. A receipt or bank statement showing both charges is the clearest evidence. For a cancelled service, the bank will ask for proof that you cancelled — an email confirmation, a screenshot of a cancellation page, or a letter you sent.

For a transaction you claim you never received goods or services for, the bank will ask whether you contacted the merchant first and what the merchant said. If the merchant promised a refund but never sent one, bring that email or message. The bank uses this information to decide whether the merchant was at fault or whether there was a miscommunication.

What happens if the bank rules against you

If the bank investigates and decides the merchant was right, they will send you a letter explaining why. This might be because the merchant provided proof of delivery, proof that you authorized the charge, or proof that you received the goods or service. The letter will include the merchant's explanation and the bank's reasoning.

You have the right to disagree with the bank's decision. You can submit a written statement — usually one to two pages — explaining your side of the story. This statement becomes part of your permanent dispute record and is kept by the bank. Submitting a statement does not overturn the decision, but it creates a record that you contested it.

If you believe the bank made an error in their investigation, you can file a complaint with the Consumer Financial Protection Bureau (CFPB) or your state's banking regulator. These agencies do not overturn disputes, but they investigate whether the bank followed the law. A complaint is free and can be filed online at consumerfinance.gov.

How to prevent disputes in the first place

Review your bank statement every month, even if you use online banking. Many people catch duplicate charges or unauthorized transactions only when they sit down and read the full list. Set a calendar reminder to check your statement on the same day each month.

For subscriptions and recurring charges, write down the amount and the date you expect to be charged. If the charge does not appear on the expected date or if the amount changes, contact the merchant before disputing with the bank. Many disputes are resolved faster when you have already asked the merchant about the problem.

Keep receipts for large purchases and for anything you ordered online. Take a screenshot of the confirmation page showing the amount charged. If you cancel a service, save the cancellation confirmation email. These documents make disputes much faster to resolve because the bank does not have to guess what happened.

Frequently Asked Questions

How long do I have to report a disputed transaction?

You must report the dispute within 60 days of the transaction appearing on your statement. After 60 days, your bank is not required to investigate. If you notice a problem on an old statement, contact your bank when ready — some banks will still help even after 60 days, but you cannot count on it.

Will I get my money back while the bank investigates?

For debit card transactions, yes — the bank must credit your account temporarily within 10 business days. For check disputes and some other transactions, the bank may not credit you until the investigation is complete. Ask your bank in writing whether a provisional credit will be issued and when it will appear.

What if the merchant says I authorized the charge?

If you did not authorize it, tell the bank that clearly. The merchant may have a record of a signature, a PIN entry, or a verbal authorization, but if you did not give permission, the bank needs to know. Explain what happened — for example, "My card was stolen" or "I never agreed to this charge." The bank will investigate both sides.

Can I dispute a transaction more than once?

No. Once the bank closes a dispute, you cannot file another dispute for the same transaction. If you have new evidence, contact the bank and ask whether they will reopen the case. Otherwise, your only option is to file a complaint with the CFPB or your state regulator.

What if my bank refuses to investigate?

Your bank is required by law to investigate disputes filed within 60 days. If they refuse, file a complaint with the CFPB at consumerfinance.gov or contact your state's banking regulator. Include the date you filed the dispute, the reference number, and a copy of your written dispute request.