What Is a COTCAR Charge on My Credit Card?

A COTCAR charge on your credit card is an unfamiliar billing descriptor, not a recognized retailer or brand. It may be a legitimate merchant appearing under an abbreviated corporate or processor name, or it may be an unauthorized charge. Either way, the response is the same: try to identify the source, then contact your card issuer, and if you cannot confirm the purchase, dispute it in writing within 60 days.

Why the Descriptor Looks Unfamiliar

Card statements use short text strings called billing descriptors to label each transaction. They are typically capped at 20 to 25 characters and are set by the merchant or its payment processor, not by your bank.¹ Because of that character limit, businesses often appear under truncated names, parent-company names, third-party payment platforms, or a doing-business-as name customers never see on the storefront. Your issuing bank also has some discretion over how the descriptor displays, so the same merchant can look slightly different across banks and card networks.²

That is why a label like COTCAR may not match anything you remember buying. Before treating it as fraud, spend a few minutes trying to trace it.

How to Trace the Charge

Many unrecognized charges turn out to be forgotten subscriptions, purchases by an authorized user, or legitimate merchants operating under unfamiliar corporate names.

Search your email inbox for the exact date and dollar amount. Subscription services and online purchases usually send confirmations that include the billing name.³
Type the descriptor into a search engine exactly as it appears. Other cardholders may have already identified the merchant.
Ask anyone else authorized on the account, such as a spouse, family member, or employee, whether they made the purchase.³
Call the number on the back of your card. Your issuer can share details that don’t appear on the statement, including the merchant’s full registered name, phone number, and location, plus the Merchant Category Code that identifies the type of business.⁴

Third-party processors sometimes provide their own lookup tools. Stripe, for example, offers a page where cardholders can enter an unfamiliar descriptor and find the underlying business.⁵

How to Dispute the Charge

If you cannot identify the transaction, or you confirm you did not authorize it, federal law gives you strong tools to challenge it.

Call your issuer first and report the charge as unrecognized or unauthorized. Most issuers can flag it right away and open an investigation over the phone. Follow up in writing even if you also file the dispute online. The Federal Trade Commission recommends sending the letter to the address your issuer designates for billing inquiries, not the payment address, by certified mail with a return receipt.⁶

The letter should include your name, account number, the date and dollar amount of the charge, and an explanation of why you believe it is an error. Attach copies of any supporting documents rather than originals. The FTC publishes a sample dispute letter you can use as a template.⁶

The 60-Day Deadline

The critical timing rule: your written dispute must reach the card issuer within 60 days of the date the first statement containing the charge was sent to you. Miss that window and you can lose the protections below.⁷

Your Rights While the Dispute Is Open

Once your issuer receives a valid dispute notice, it must acknowledge the complaint in writing within 30 days. It then has two full billing cycles, and no more than 90 days, to investigate and resolve the matter.⁷ If the issuer finds an error, it must correct the account and credit back the disputed amount along with any related finance charges. If it concludes the charge is valid, it must send a written explanation and, on request, provide supporting documentation.⁸

During the investigation, you do not have to pay the disputed amount or any finance charges tied to it, though you must keep paying the undisputed portion of your bill. The issuer cannot try to collect the disputed amount, report you as delinquent for not paying it, close or restrict your account because you disputed, or threaten your credit standing.⁹ If you are enrolled in automatic payments, the issuer must not deduct the disputed amount as long as your notice reaches it at least three business days before the scheduled payment.⁷

Federal law caps your responsibility for unauthorized credit card charges at $50.⁸¹⁰¹¹ Visa requires issuers to replace funds from unauthorized transactions within five business days of notification.

A note on scope: these credit card protections come from the Fair Credit Billing Act and Regulation Z. Debit card charges follow a different federal regime with different deadlines and liability limits, so if the COTCAR entry appeared on a debit card, ask your bank specifically about its debit dispute process.

When to Treat It as Identity Theft

One unauthorized charge can be the first sign of a broader problem. If you also find other unfamiliar charges, accounts you did not open, or other suspicious activity, take further steps:

Place a fraud alert by contacting any one of the three major credit bureaus: Equifax (800-525-6285), Experian (888-397-3742), or TransUnion (800-680-7289). The bureau you contact is required to notify the other two.¹²
Review your credit reports. Once a fraud alert is in place, you are entitled to a free report from each bureau. Look for accounts, inquiries, or debts you do not recognize.¹³
Consider a credit freeze, which restricts access to your credit report. Unlike a fraud alert, you must request a freeze separately with each bureau.¹³
File an identity theft report with the FTC at IdentityTheft.gov or by calling 877-438-4338. The FTC will generate a recovery plan and an official report you can use to compel companies to stop reporting fraudulent debts.¹²
File a police report and bring your FTC report and supporting documents. The combination creates an Identity Theft Report that carries additional legal weight with creditors and credit bureaus.¹²

Where to Escalate

If your card issuer does not resolve the dispute to your satisfaction, you have further options. File a complaint with the Consumer Financial Protection Bureau online at consumerfinance.gov/complaint or by calling (855) 411-2372.¹⁴ Report the issue to the FTC at ReportFraud.ftc.gov.⁸ Your state attorney general’s office is another avenue, especially if you suspect a pattern of deceptive billing.

1
Stripe. Billing Descriptors
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Mastercard. Statement Descriptor
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Discover. What Is This Charge on My Credit Card
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CreditCards.com. How to Find a Business MCC Code
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Stripe. Charge You Don’t Recognize From Stripe
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FTC. Disputing Credit Card Charges
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CFPB. Regulation Z, Section 1026.13
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FTC. Using Credit Cards and Disputing Charges
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Cornell Law Institute. 12 CFR 1026.13 – Billing Error Resolution
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Visa. Zero Liability Policy
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Mastercard. Zero Liability Protection
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OVC. Steps for Victims of Identity Theft
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Experian. Steps to Take if Someone Opens a Credit Card in Your Name
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CFPB. How Can I Get a Refund on a Product or Service I Purchased With My Credit Card