How to File a Dispute for an Unauthorized Transaction: Step-by-Step Guide and Timelines (2026)

Unauthorized transactions can strike your bank account, debit card, or credit card without warning, but federal protections help limit your losses and recover funds when you respond quickly. The process begins by notifying your bank, credit union, or credit card issuer right after you notice the problem. Consumer Financial Protection Bureau guidelines set a 60-day window after your statement is sent to report unauthorized electronic fund transfers, like debit card use or drained accounts. Credit card issuers such as Chase and Bank of America follow a matching 60-day period from the statement date.

Banks must start investigating within 10 business days and complete the process in up to 45 days. Credit card disputes can resolve even faster, sometimes in 48 hours to 10 business days with Chase. This guide covers the steps, deadlines, and expectations to safeguard your funds from fraud on debit or credit products.

Act Fast: The 60-Day Notification Deadline to Protect Your Money

Timing matters with unauthorized transactions. Report them to your bank or credit union within 60 days after the statement showing the charge is sent. Miss that window, and you could bear the full cost of any further unauthorized activity.

This rule covers bank accounts and debit cards under electronic fund transfer protections. Credit card issuers apply a parallel timeline: dispute within 60 days of the transaction appearing on your statement, as Chase and Bank of America specify. Reporting early caps your liability and triggers the bank's investigation. Check statements regularly through your online account or app, and alert them immediately to maximize protection.

How to Submit Your Dispute – Contact Your Bank or Card Issuer Right Away

Contact your bank, credit union, or card issuer to kick off the dispute. For bank accounts or debit cards, use the phone number on your card or account agreement, or their secure online portal or app. Share details such as the transaction date, amount, and reason it's unauthorized.

Chase and Bank of America let you file disputes via website or app within 60 days of the statement date. Here's how:

1. Log in to your online banking or mobile app.
2. Navigate to the disputed transaction in your statement.
3. Select "dispute" or "report fraud" and fill out the form with specifics.
4. Submit supporting evidence if prompted, such as photos of receipts or timelines.

On phone calls, record the representative's name, date, and reference number. Federal law requires provisional credits to your account during investigations for certain electronic transfers, restoring fund access promptly. Document every interaction.

What Happens Next: Bank Investigation and Resolution Timelines

Your bank or credit union starts investigating once you submit the dispute. They complete an initial review in 10 business days, per Consumer Financial Protection Bureau rules.

Full resolution follows within 45 days, though exceptions exist for foreign transactions, those within 30 days of account opening, or point-of-sale debit card purchases. The bank might reach out for additional details--reply without delay to prevent setbacks.

Chase handles credit card disputes in as little as 48 hours, potentially up to 10 business days. Bank of America asks for responses to info requests within 12 business days. Debit disputes often bring temporary credits, and you'll receive written notice of the outcome, with appeal options if denied.

Debit Card vs. Credit Card Disputes: Which Protections Apply to You?

Protections vary depending on whether the unauthorized transaction affected your debit card, bank account, or credit card. Debit and electronic fund transfers follow federal rules with fixed timelines, while credit cards provide billing dispute rights that typically resolve more swiftly.

Debit limits liability strongly when reported on time, including provisional credits under electronic fund transfer rules. Credit cards generally offer zero liability for unauthorized charges, with faster handling from Chase and Bank of America.

Use this table to compare key timelines:

First determine your payment type, then pursue the appropriate process.

FAQ

How soon must I notify my bank of an unauthorized transaction?
Notify within 60 days after the statement showing the transaction is sent for bank accounts or debit cards, per the Consumer Financial Protection Bureau. Credit card issuers like Chase and Bank of America use a 60-day window from the statement date.

What is the bank's timeline to investigate my dispute?
Banks have 10 business days for initial investigation on unauthorized electronic transfers. Credit card processing from Chase can take 48 hours to 10 business days.

Does the process differ for debit cards versus credit cards?
Yes. Debit follows CFPB electronic fund transfer rules with 60/10/45-day timelines and provisional credits. Credit cards use a 60-day dispute window with faster processing, such as 48 hours to 10 business days per Chase.

What happens if my bank asks for more information during the dispute?
Provide it quickly. Bank of America expects responses within 12 business days to keep the process on track.

Can I still dispute if it's been more than 60 days?
Possibly, but you risk full liability for amounts after the 60-day period under CFPB rules for bank/debit transactions. Check with your issuer for exceptions.

Are there exceptions to the 45-day resolution timeline?
Yes, including foreign transactions, new accounts within 30 days, or point-of-sale debit purchases, as noted by the Consumer Financial Protection Bureau.

Review your latest statements today and save contact info for your bank or issuer. If a dispute is denied, request the documentation and consider escalating to the CFPB.