How to Dispute Unauthorized Charges on Your Credit or Debit Card (2026 Guide)

Spotting an unauthorized charge on your credit or debit card statement requires quick action. Begin by checking your statement to confirm the charge is unfamiliar and not a billing error you authorized. Under the Fair Credit Billing Act (FCBA), credit card users have 60 days from the statement date when the charge first appears to file a dispute for federal protections, as outlined by Chase. Debit card disputes follow a similar 60-day window from issuers like Capital One. American Express and Discover cardholders often get a 120-day window from the transaction date.

Contact the merchant first if possible to resolve it directly. If that doesn't work, reach out to your card issuer right away through their app, website, or the phone number on the back of your card--logging into Chase.com, for instance, makes this straightforward. Gather supporting documents, such as emails or receipts that rule out your involvement. Issuers must conduct a reasonable investigation, which can take up to 90 days. Acting within these time limits boosts your chances of getting the charge removed or refunded without liability for unauthorized transactions.

This guide walks everyday consumers through the process, deadlines, and differences by card type to help safeguard your finances.

Understand Your Time Limits for Filing a Dispute

Time limits ensure disputes qualify for legal protections, so check your statement date immediately. For credit cards, the standard window is 60 days from when the unauthorized charge first appears on your statement. Chargebacks911 emphasizes this for the strongest protections, while Experian ties it to the FCBA, requiring action within 60 days of receiving the bill with the error. Chase confirms that to dispute a charge related to billing errors under the FCBA, you must send an inquiry within 60 days of when the first bill with the error was sent.

Debit card users face a similar 60-day window. Capital One notes filing within 60 days after the statement with the transaction is sent to preserve options.

American Express and Discover extend this in some cases to 120 days from the transaction date, offering more flexibility than the standard 60-day rule. Missing these deadlines can weaken your position, as issuers may deny claims outside the window. Always note the exact statement date and transaction details to stay compliant.

Step-by-Step Process to Dispute Unauthorized Charges

Follow this workflow to handle unauthorized charges systematically, starting from detection.

  1. Review and verify the charge: Examine your statement closely. Rule out any possibilities like a subscription you forgot or a legitimate purchase. If it remains suspicious, proceed. Experian notes that if you see a charge you didn't make, first rule out possibilities.

  2. Contact the merchant first: Reach out to the seller or service provider to discuss the charge. Experian recommends this step, as they may reverse it quickly without issuer involvement. If tried to resolve with the seller and they don't respond, initiate with your issuer.

  3. Gather documentation: Collect evidence such as account statements, communication with the merchant, or police reports if fraud is involved. Capital One notes this prepares you for the issuer's review, where investigations can span up to 90 days. If unable to resolve by contacting the merchant, gather documents before filing the dispute.

  4. File the dispute with your issuer: Use the quickest method--sign into your online account or app, or call the number on your card back. Chase provides options like Chase.com for posting disputes on credit cards protected under the FCBA. If the charge posts and you wish to dispute, sign in to Chase.com or call the number on the back of your card.

  5. Follow up: Monitor your account and statements. Issuers often provisionally credit your account during investigation, but stay engaged for updates. Start by following steps to dispute credit card charges protected by FCBA against unauthorized charges and billing errors, as per Chase.

This consumer-focused process, drawn from issuer guidelines, keeps you in control while leveraging federal safeguards.

What Happens After You File – Bank Investigation Duties

Once submitted, your issuer takes over with legal obligations to investigate thoroughly. Federal law, including FCBA protections for credit cards, requires banks to perform a reasonable investigation rather than a superficial check, as noted by Bankrate. They review transaction details, merchant responses, and your evidence. Law places responsibilities on the lender to investigate claims of fraudulent transactions with a reasonable investigation, not a cursory review.

Expect a timeline of up to 90 days for completion, per Capital One, during which you may see a temporary credit to your balance. Chase reinforces that this process shields against unauthorized charges and billing errors. Issuers must notify you of outcomes, including any reversals or denials with explanations.

Set realistic expectations: while protections exist, resolution depends on the evidence provided. Track progress through your account portal and respond promptly to any issuer requests.

Credit vs. Debit Disputes – Key Differences to Know

Credit and debit cards share core dispute processes but differ in protections and timelines. Credit cards benefit from FCBA, with a 60-day window from the statement date for billing errors and unauthorized use. Debit disputes rely on a similar 60-day window from issuers.

Key variations arise by network:

Card Type/Network Time Limit Key Notes
Standard Credit Cards (Visa, Mastercard, etc.) 60 days from statement date FCBA protections; file via issuer app/phone (Chase, Experian)
Debit Cards 60 days from statement date Similar process; gather docs first (Capital One)
American Express/Discover 120 days from transaction date Extended window for chargebacks

Use this to select your approach: credit users lean on federal law, debit holders act per issuer advice, and Amex/Discover filers gain extra time. Always confirm your card's specifics through the issuer.

FAQ

How soon must I dispute an unauthorized credit card charge?
File within 60 days of the statement date when the charge appears for FCBA protections, as stated by Chase and Experian.

What’s the difference between credit and debit card dispute time limits?
Both follow a 60-day window--credit from the statement date under FCBA (Chase), debit from the statement date (Capital One)--but credit offers federal mandates.

Do I need to contact the merchant before filing with my bank?
Yes, attempt resolution with the merchant first, then escalate if unresolved, per Experian guidelines.

How long does a dispute investigation take?
Up to 90 days, during which issuers conduct reasonable reviews (Capital One, Bankrate).

Does federal law protect my unauthorized charge dispute?
Yes, the FCBA safeguards credit card disputes against unauthorized charges and errors when filed timely (Chase).

Can I dispute Amex or Discover charges after 60 days?
Yes, these networks allow up to 120 days from the transaction date.

To wrap up, download your latest statement today, note any suspect charges, and initiate contact with the merchant or issuer without delay. Keep records of all steps for your protection.