The timeline depends on the dispute type, but most take 30 to 90 days

A bank dispute over an unauthorized transaction typically takes 30 to 90 days from the moment you report it. The exact timeline depends on whether your bank classifies it as a chargeback (a credit card dispute) or an unauthorized debit (a checking account dispute). Credit card chargebacks move faster—usually 30 to 60 days. Unauthorized debits from checking accounts can stretch to 90 days because banks must investigate more thoroughly and may need to contact the merchant directly.

The clock starts when you file your dispute, not when the unauthorized charge first appeared on your statement. If you wait weeks to report it, the investigation still takes the same amount of time once you do. Banks are required by federal law to investigate within specific windows, but those windows are minimums, not guarantees of speed.

Key Takeaways

  • Credit card chargebacks typically resolve in 30 to 60 days; unauthorized checking account debits can take up to 90 days.
  • Your bank must acknowledge your dispute within one to three business days and complete the investigation within the timeframe set by law, but you may not see a resolution until the end of that window.
  • You may receive a provisional credit within 10 business days for credit card disputes, but this is not the same as a final resolution.
  • The merchant has the right to respond to your dispute, which can extend the timeline if they provide evidence the transaction was legitimate.
  • Disputes involving wire transfers or ACH payments follow different rules and may take longer because those payment types have fewer consumer protections.

Credit card chargebacks: 30 to 60 days

If the unauthorized charge is on a credit card, your bank (the card issuer) must investigate and resolve the dispute within 60 days of receiving your report. In practice, most credit card disputes close within 30 to 45 days. The card issuer may issue you a provisional credit within 10 business days—money returned to your account while the investigation is ongoing—but this is temporary and can be reversed if the merchant disputes your claim.

The merchant has up to 45 days to respond to the chargeback with evidence that the transaction was legitimate. If they provide proof—a signed receipt, delivery confirmation, or IP address matching your location—the bank may rule in their favor and reverse the provisional credit. If the merchant does not respond or their evidence is weak, the chargeback is finalized in your favor.

Some card issuers move faster than others. American Express typically resolves disputes in 20 to 30 days. Visa and Mastercard disputes follow the 60-day window more strictly. Call your card issuer to ask their average timeline; they can tell you whether your specific dispute is on track.

Checking account disputes: up to 90 days

Unauthorized debits from a checking account (including debit card fraud and ACH transfers) fall under different rules. Your bank must investigate within 45 days of your report, but if the investigation is not complete by then, they have an additional 45 days to finish—bringing the total to 90 days. During this time, the bank may issue a provisional credit, but they are not required to do so as quickly as credit card issuers are.

Checking account disputes take longer because banks must contact the merchant or the receiving bank directly. If the unauthorized charge went to another bank (as with ACH transfers), that bank must also investigate on their end. If the merchant is unresponsive or the receiving bank is slow, your timeline stretches toward the 90-day maximum.

Wire transfers and international ACH payments have even weaker protections. Wire transfers are rarely reversed because they are considered final once sent. ACH disputes can take 60 to 90 days, and recovery is not may provide if the receiving account has already spent the funds.

What happens during the investigation

When you file a dispute, your bank assigns it a case number and sends you written confirmation within one to three business days. This confirmation includes the case number, the investigation deadline, and instructions for providing additional evidence. Keep this confirmation—you will need the case number to follow up.

Your bank then contacts the merchant or the merchant's bank to request documentation of the transaction. They ask for proof that you authorized the charge: a signed receipt, an email confirmation, shipping records, or IP address logs. The merchant has a set window (usually 7 to 45 days, depending on the payment type) to respond.

While the investigation is ongoing, you should not attempt to resolve the dispute directly with the merchant. Doing so can complicate the bank's investigation. If the merchant contacts you offering to refund the charge, ask them to send the refund directly to your bank account rather than disputing it through the bank. This closes the dispute faster.

Provisional credit vs. final resolution

A provisional credit is temporary money returned to your account while the bank investigates. It is not the same as winning the dispute. Your bank may issue a provisional credit within 10 business days for credit card disputes, but checking account disputes may not receive one at all, or it may take longer.

If the merchant provides strong evidence that the transaction was legitimate, your bank can reverse the provisional credit and charge you again. This is why you should not spend provisional credit as if it is final. Keep the funds available in case the bank reverses it.

A final resolution comes when the bank completes its investigation and makes a ruling. If you win, the charge is permanently removed and any provisional credit becomes permanent. If you lose, the provisional credit is reversed and you are responsible for the charge.

How to speed up your dispute

Provide documentation immediately. When you file your dispute, include any evidence you have: screenshots of unauthorized charges, emails showing you did not authorize the transaction, statements showing the charge does not match your usual spending pattern, or proof that your card was lost or stolen. The more evidence you provide upfront, the faster your bank can investigate.

Follow up with your bank every two weeks. Call the number on the back of your card or log into your online banking portal and check the status of your dispute using your case number. Ask the representative how many days remain in the investigation window and whether the merchant has responded. If the merchant has not responded by day 30, ask your bank to send a second request.

Report the fraud to the Federal Trade Commission at IdentityTheft.gov if the unauthorized charge is part of a larger pattern of fraud or identity theft. This creates an official record and may help your bank prioritize your case. You can also file a police report if the amount is large or the fraud is ongoing.

What to do if the dispute takes longer than expected

If your bank does not resolve the dispute by the deadline, contact them immediately. Credit card disputes must close by day 60; checking account disputes by day 90. If your bank misses this deadline, they must issue a permanent credit for the disputed amount, even if the investigation is not complete.

Ask your bank in writing (email or certified mail) why the dispute is delayed and when you can expect a resolution. Request the name and direct contact information of the investigator handling your case. If your bank continues to miss deadlines, file a complaint with the Consumer Financial Protection Bureau (CFPB) at consumerfinance.gov. The CFPB can pressure your bank to resolve the dispute faster.

If the unauthorized charge was part of identity theft, you may also file a report with your state's attorney general's office. This is separate from the bank dispute but can help if your bank is unresponsive.

Frequently Asked Questions

Can I get my money back before the dispute is resolved?

Your bank may issue a provisional credit within 10 business days for credit card disputes, but this is temporary. Checking account disputes rarely include provisional credits. You should not count on having access to the full amount until the dispute is finalized, which can take 30 to 90 days.

What if the merchant says they have proof I authorized the charge?

If the merchant provides a signed receipt, email confirmation, or other evidence that you authorized the transaction, your bank will likely rule in their favor and reverse any provisional credit. You can dispute this ruling by providing your own evidence (such as proof your card was stolen before the charge), but the merchant's documentation is usually considered stronger.

Do I have to pay my bill while the dispute is pending?

No. You do not have to pay the disputed amount while the bank investigates. However, you should pay any undisputed charges on time to avoid late fees and credit damage. If the dispute is resolved in the merchant's favor, you will owe the charge plus any interest that accrued during the investigation.

What if the unauthorized charge was a wire transfer?

Wire transfers are rarely reversed because they are considered final once sent. Your bank may still investigate, but recovery is unlikely unless the receiving bank can freeze the account before the funds are withdrawn. Contact your bank immediately if a wire transfer was sent without your authorization—speed matters more with wires than with other payment types.

Can I dispute a charge if I authorized it but changed my mind?

No. A dispute is only valid if the charge was truly unauthorized or fraudulent. If you authorized the charge but regret it, you should contact the merchant directly to request a refund or cancellation. Filing a false dispute can result in your account being closed and damage to your credit.