You check your account and find a charge from a company you have dealt with before, but you never agreed to this particular payment. Maybe a store billed you again after you cancelled, a hotel added a fee after checkout, or a service raised its price and charged you without warning. Can a merchant legally do that? The short answer is that merchants need your authorization, but that authorization can be broader than you realize. This guide explains when a merchant can charge your card, when it crosses the line, and exactly how to fight an unauthorized charge.
The basic rule: merchants need authorization
Card network rules from Visa, Mastercard, American Express and Discover require merchants to have the cardholder’s permission before charging a card. US law backs this up. The Fair Credit Billing Act protects credit card users, and the Electronic Fund Transfer Act with Regulation E protects debit card users from unauthorized electronic transfers.
The key question is what you actually authorized. Permission can be given in several ways:
- Swiping, tapping or inserting your card at checkout
- Entering your card details online and clicking “buy” or “subscribe”
- Agreeing to terms that include future charges, such as a subscription, deposit or damage fee
- Saving your card on file and agreeing that it may be used for later purchases
- Giving permission verbally over the phone
When a merchant CAN charge you without asking again
These charges are usually legal because you agreed to them in advance, even if you do not remember doing so:
Recurring subscriptions
When you sign up for a subscription, you authorize ongoing charges until you cancel. Each monthly or yearly charge does not need fresh approval.
Free trials that convert
If the trial terms said you would be billed after the trial unless you cancelled, the first paid charge is generally authorized. Many states and the FTC require clear disclosure and easy cancellation, so a hidden or confusing trial may still be challengeable.
Incidental and damage charges
Hotels, car rental companies and vacation rentals often have terms allowing them to charge your card for minibar items, late checkout, smoking fees, fuel, tolls or damage. These charges can arrive days or weeks after your stay.
Delayed or split shipments
Online stores may charge you when each part of your order ships, so one order can produce several charges.
Price adjustments you agreed to
Tips added after a restaurant authorization, final fuel amounts at the pump and weight-based pricing are all adjustments covered by your original approval.
When a merchant CANNOT charge you
A charge is generally unauthorized when:
- You cancelled and the merchant keeps billing you afterward.
- You never agreed to the charge or the terms were not disclosed.
- The amount is different from what you agreed to, without a valid reason in the agreement.
- The charge is for something you did not receive and the merchant will not refund it.
- Your card was used by someone else without your permission, which is fraud.
- The merchant charged you twice for the same purchase.
- A price increase was not disclosed before the charge, depending on the terms and state law.
Authorized vs unauthorized charges at a glance
| Situation | Usually authorized? | What to do |
|---|---|---|
| Monthly subscription you signed up for | Yes | Cancel if you no longer want it |
| Charge after you cancelled | No | Request refund, then dispute |
| Hotel minibar or damage fee | Often yes, per terms | Ask for itemized receipt, dispute if wrong |
| Trial converted with clear terms | Usually yes | Cancel and ask for goodwill refund |
| Trial with hidden terms | Possibly not | Dispute, cite unclear disclosure |
| Duplicate charge | No | Ask merchant to reverse, then dispute |
| Charge from unknown company | No, possibly fraud | Lock card and call bank |
How to fight a charge you did not authorize
- Review what you agreed to. Check confirmation emails, receipts and the merchant’s terms. This tells you whether you have a strong case.
- Contact the merchant first. Explain the problem, ask for a refund and request a written response. Many issues end here.
- Keep evidence. Save cancellation confirmations, screenshots, chat transcripts and emails.
- Dispute with your bank or card issuer. If the merchant refuses or does not respond, file a dispute. For debit cards, report within 60 days of your statement date. For credit cards, the Fair Credit Billing Act generally gives you 60 days from the statement date to send written notice. See how to dispute a charge with your bank step by step.
- Block future charges. Ask your bank to block the merchant. See how to block a merchant from charging your card.
- File a complaint if needed. If a company keeps charging you, you can file complaints with the Consumer Financial Protection Bureau, the FTC and your state attorney general.
If you cannot even tell which company charged you, start with our guide on how to find out who charged your card.
Debit vs credit card protection
| Debit card | Credit card | |
|---|---|---|
| Main law | Electronic Fund Transfer Act, Regulation E | Fair Credit Billing Act |
| Liability for fraud | $50 if reported in 2 business days, up to $500 or more if later | Maximum $50, most issuers offer $0 |
| Money during dispute | Your cash is gone until provisional credit | Charge is disputed, your cash is untouched |
| Reporting window | 60 days from statement | 60 days from statement |
Because a debit card dispute ties up your own cash, many experts suggest using a credit card for online subscriptions, travel and trials. While a dispute is investigated your bank may give you a temporary refund, explained in what provisional credit means.
How to prevent unauthorized merchant charges
- Read the cancellation and fee terms before you subscribe or book.
- Keep every cancellation confirmation until at least one billing cycle has passed.
- Use virtual or single-use card numbers for trials and new websites.
- Turn on alerts for every card transaction.
- Check hotel and rental receipts at checkout and photograph the car or room condition.
- Remove saved cards from websites you no longer use.
Frequently asked questions
Is it illegal for a company to charge my card without permission?
Charging a card without authorization violates card network rules and can violate federal and state consumer protection laws. Your main remedy is to dispute the charge with your bank and report the company to regulators.
Can a company charge my card after I cancel?
Not for new periods after a valid cancellation. They may charge for a final period you already used if the terms allow it. Charges after cancellation are usually disputable.
Can a hotel charge my card after I check out?
Yes, if the hotel’s terms, which you accepted at booking or check-in, allow incidental or damage charges. You can ask for an itemized bill and dispute charges you believe are wrong.
Can a merchant charge more than the authorized amount?
Only when the agreement allows adjustments, such as tips or final fuel amounts. Otherwise, charging more than you agreed to is a valid reason to dispute.
What happens to the merchant if I dispute?
The merchant receives a chargeback and can submit evidence that you authorized the charge. If they cannot prove it, the money returns to you and the merchant may pay a fee.
Real-life examples
Seeing how these rules apply in common situations makes it easier to judge your own case.
The gym that kept billing. Maria cancelled her gym membership in person and got a printed receipt. Two months later she was still being charged. Because she had proof of cancellation, her bank sided with her in the dispute and refunded both charges. The lesson: always get cancellation confirmation in writing.
The hotel damage fee. James stayed at a hotel and was charged a $250 cleaning fee a week after checkout. The hotel’s booking terms did allow cleaning fees for smoking. James asked for photos and an itemized explanation. When the hotel could not provide evidence, his card issuer reversed the fee. The lesson: an allowed fee still needs to be justified.
The forgotten annual renewal. Priya was charged for a yearly software plan she had not used in months. The terms clearly stated it would renew automatically, so the charge was technically authorized. She contacted the company within a few days and asked for a refund as a courtesy. Many companies grant this when you ask quickly, even when they are not required to.
The price increase. A streaming service raised its price and charged Daniel the new amount. Because the service had emailed notice of the change in advance and his subscription terms allowed price changes, the charge was valid. Daniel simply cancelled to avoid future charges.
The stolen card details. Alex saw three small charges from an overseas website he had never visited. This was fraud, not a merchant billing dispute. He locked his card, called his bank the same day, and was not held responsible for any of the charges.
Questions to ask yourself before disputing
Before you open a dispute, ask: Did I ever give this company my card? Did I agree to terms that mention future charges? Did I cancel, and can I prove it? Did I receive what I paid for? Is the amount what I expected? Clear answers make your dispute stronger and help your bank resolve it faster.
The bottom line
A merchant needs your permission to charge your card, but that permission often covers subscriptions, trials, deposits and incidental fees you agreed to in the fine print. When a charge goes beyond what you agreed to, or continues after you cancel, ask for a refund, keep evidence and dispute it with your bank quickly. Blocking the merchant and using credit or virtual cards for online purchases keeps it from happening again.
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