Stop a payment before the merchant charges your card
If you haven't been charged yet, contact your credit card issuer—the bank or company that issued your card—and ask them to block the transaction. Most issuers can place a temporary hold on a pending charge if you call before the merchant has already submitted it for processing. The window to do this is usually 24 to 48 hours after you authorized the payment, though it varies by issuer and merchant.
Call the number on the back of your card. Tell the representative the merchant's name, the transaction amount, and when you authorized it. They will check whether the charge has already been submitted to their system. If it hasn't, they can flag it to prevent it from going through. If it has already been submitted, you'll need to dispute it instead—which is a different process with a longer timeline.
Some issuers also let you block payments through their mobile app or online portal. Log in, find the pending transaction, and look for a "cancel" or "block" option. Not all cards offer this, so calling is the most reliable method if you're in a hurry.
Key Takeaways
- Contact your card issuer by phone before the merchant submits the charge to your account, usually within 24 to 48 hours of authorization.
- If the charge has already posted to your account, you cannot block it—you must dispute it instead, which takes 30 to 90 days to resolve.
- Some card issuers allow you to block pending transactions through their app or website, but calling the customer service number is the fastest and most reliable method.
- Blocking a payment is different from disputing a charge; blocking stops it before it hits your account, while disputing removes it after it has already posted.
What happens after you block a payment
Once your issuer blocks the transaction, the merchant will not receive the funds. The charge will not appear on your statement. However, the merchant may still see that the authorization was attempted and then cancelled, which could trigger a follow-up email or phone call asking why you cancelled.
If you blocked the payment because you changed your mind about a purchase, you may want to notify the merchant directly so they don't waste time trying to collect. If you blocked it because you suspect fraud or an error, keep a record of the date and time you called your issuer, the representative's name, and the confirmation number they gave you. You'll need this if the merchant disputes the block or if the charge reappears.
When blocking won't work: charges that have already posted
If the merchant has already submitted the charge and it now appears on your statement, blocking is no longer an option. At this point, you must file a dispute instead. A dispute is a formal request to your card issuer to investigate and remove the charge from your account.
To start a dispute, call your issuer or log into your account and select the charge. You'll need to explain why you're disputing it—for example, you didn't authorize it, the merchant charged the wrong amount, or the merchant never delivered what you paid for. Your issuer will then contact the merchant and ask for proof that the charge was valid. This process typically takes 30 to 90 days.
While your dispute is being investigated, the charge usually remains on your statement, but your issuer may issue a provisional credit so you're not out the money during the investigation. If the merchant cannot prove the charge was valid, your issuer will remove it permanently and you'll keep the credit.
Stopping recurring charges and subscriptions
If you're trying to stop a charge that repeats every month—a subscription, membership, or automatic payment plan—blocking a single charge won't stop future ones. You have two options: cancel the subscription with the merchant directly, or ask your issuer to block all future charges from that merchant.
To cancel with the merchant, log into your account on their website or app and look for a "cancel subscription" or "manage billing" section. Some merchants make this easy; others bury it. If you can't find it, call the merchant's customer service line and ask them to cancel. Get a confirmation number and keep it in case they charge you again.
If the merchant won't cancel or keeps charging after you've asked them to stop, contact your issuer and ask them to block all future transactions from that merchant. This is called a recurring transaction block or stop payment order. Your issuer can place this on your account, though it may take a few days to take effect. Any charges that come through after you've requested the block can be disputed.
Blocking ACH and bank account payments
If the payment is coming from your bank account via ACH (Automated Clearing House) rather than a credit card, the blocking process is different. Contact your bank directly and ask them to place a stop payment order on the transaction. You'll need to provide the merchant's name, the amount, and the date the payment is scheduled to go out.
Banks typically charge a fee for stop payment orders, usually between $25 and $35. The order must be placed before the payment is processed, which is typically the night before the scheduled date. If you miss that window, the payment will go through and you'll need to dispute it instead, which takes longer and may not recover your money if the merchant contests it.
For recurring ACH payments, ask your bank to revoke the authorization entirely. This stops all future payments from that merchant. You can also contact the merchant and ask them to remove your bank account from their system, though this is less reliable than working through your bank.
What to do if a blocked payment comes back
Occasionally, a merchant will resubmit a charge after you've blocked it. This can happen if the merchant's system automatically retries failed transactions, or if they manually reprocess it after contacting you. If this happens, call your issuer immediately and dispute the charge. Explain that you already blocked this transaction once and that the merchant resubmitted it without your permission.
Your issuer can place a note on your account flagging this merchant, which may prevent future charges from going through. If the merchant continues to charge you after multiple blocks and disputes, ask your issuer whether you should close the card or request a new card number to prevent further unauthorized charges.
Preventing unwanted charges in the first place
The easiest way to avoid having to block a payment is to be cautious before you authorize it. Before you enter your card number, confirm the merchant's name, the exact amount you're being charged, and the billing frequency. If you're signing up for a free trial, note the date it ends and set a phone reminder to cancel before you're charged.
For one-time purchases, use a virtual card number if your issuer offers one. Virtual numbers are temporary card numbers that work only for a single transaction or merchant, which prevents the merchant from charging you again later. For subscriptions, use a separate card or a prepaid card so that if the merchant overcharges or won't stop charging, the damage is limited to that card.
If a merchant asks for your card information over the phone or email, verify that you initiated the request and that you're communicating with the merchant directly, not through a link or email they sent. Scammers often pose as merchants to collect card numbers.
Frequently Asked Questions
How long do I have to block a payment after I authorize it?
Most issuers can block a payment within 24 to 48 hours of authorization, before the merchant submits it for processing. After that window closes, the charge will post to your account and you'll need to dispute it instead. Call your issuer as soon as you decide you want to block the payment—don't wait.
Will blocking a payment hurt my credit score?
No. Blocking a payment before it posts has no effect on your credit score because the charge never appears on your statement. Disputing a charge after it has posted also does not hurt your score, as long as you resolve it within the dispute window.
Can I block a payment if I authorized it but now regret the purchase?
Yes, you can block any payment you authorized, regardless of the reason. However, if the merchant has already submitted the charge, you'll need to dispute it instead of blocking it. Blocking works only on pending charges that haven't been processed yet.
What if the merchant says they never received my block request?
Your issuer's block is between you and your bank, not between you and the merchant. If the merchant claims they never received a block, it means your issuer's block didn't prevent the charge from going through—usually because the charge was already submitted before you called. Dispute the charge with your issuer and provide them with the date and time you requested the block.
Can I block a payment on a debit card the same way as a credit card?
The process is similar, but debit card disputes take longer to resolve—up to 10 business days for a provisional credit and up to 45 days for a final decision. For this reason, blocking a debit card payment before it posts is especially important. Call your bank immediately if you want to stop a debit card charge.