Locking a credit card stops new charges without closing the account
A card lock is a feature that temporarily prevents new purchases on your card while keeping the account open. The card itself stays valid for existing recurring charges, online payments you've already set up, and sometimes contactless payments depending on your issuer. When you unlock it, new charges work again immediately.
This is different from closing a card, which ends the account and can hurt your credit score. Locking is also different from freezing your credit report, which prevents new credit applications but doesn't stop charges on existing cards.
Most major card issuers now offer locking through their mobile app or online account dashboard. The feature costs nothing and takes seconds to turn on or off.
Key Takeaways
- Card locks prevent new purchases but keep recurring charges and existing payment arrangements active, so you won't miss bills.
- You can lock and unlock your card instantly through your issuer's app or website without calling customer service.
- Locking is useful when you've lost your card, suspect fraud, or want to stop impulse spending — but it doesn't protect you from charges already authorized.
- If your card is stolen or you see unauthorized charges, report it to your issuer; locking alone does not reverse fraudulent transactions.
- Recurring charges like subscriptions and automatic bill payments usually go through even when your card is locked, depending on your issuer's rules.
How to lock your card through your issuer's app or website
Nearly every major issuer — Chase, Bank of America, American Express, Discover, Capital One, Citi — offers card locking in their mobile app or online portal. The steps are the same across all of them: log in, find the card you want to lock, and toggle the lock feature on.
On most apps, the lock option appears on the card details screen or under a "Card Controls" or "Manage Card" section. Some issuers label it "Lock Card," others call it "Card Lock" or "Freeze Card." The toggle switches on instantly with no confirmation call or email delay.
If you can't find the lock feature in your app, check your issuer's website under account settings or card management. If it's not there at all, call the customer service number on the back of your card and ask whether they offer card locking. Smaller regional banks and credit unions may not have this feature yet.
What still works when your card is locked
The behavior of locked cards varies slightly by issuer, but most allow recurring charges to go through. This means automatic bill payments, subscription services, and other charges you've pre-authorized will usually process even when the card is locked.
Contactless payments (tapping your phone or watch at a store) may or may not work depending on your issuer. Some treat contactless as a new transaction and block it; others treat it as a continuation of your existing card and allow it. Check your issuer's documentation or test it before you rely on contactless while your card is locked.
Charges you've already authorized — like a hotel hold or a pending restaurant bill — will still process. The lock only stops new charges initiated after you turn it on, not charges that were already in the pipeline.
When to lock your card instead of reporting it lost or stolen
Lock your card if you've misplaced it but think you'll find it, or if you want to stop yourself from using it temporarily. Locking is faster than reporting it lost and getting a replacement card mailed to you, which typically takes five to ten business days.
If you've actually lost your card and can't find it after a reasonable search, or if you suspect someone else has it, report it lost or stolen instead of just locking it. Reporting triggers a replacement card and gives you stronger fraud protections under federal law. Locking alone does not reverse unauthorized charges — you still have to dispute them.
Lock your card if you want to prevent impulse spending or test whether you can stick to a budget without using that particular card. Unlock it when you're ready to use it again.
What to do if you see unauthorized charges on a locked card
If your card is locked and you see charges you didn't make, the lock didn't prevent them — they were either authorized before you locked the card, or they came through a recurring charge you'd set up earlier. Lock your card immediately if you haven't already, then contact your issuer to report the fraudulent charges.
You have the right to dispute unauthorized charges under the Fair Credit Billing Act. Your issuer will investigate and typically remove the charge while they look into it, though the timeline varies. Provide your issuer with the transaction details, the date you noticed it, and any evidence that you didn't authorize it.
If fraud is ongoing, ask your issuer whether you should close the card entirely and request a new one with a different number. Locking stops new charges, but if someone has your full card number and keeps trying, closing and replacing the card is more secure.
Locking versus freezing your credit: which one you need
A card lock and a credit freeze do completely different things. Locking your card stops charges on that one card. Freezing your credit report prevents anyone — including you — from opening new credit accounts in your name without unfreezing first.
If you've lost your card or suspect fraud on that specific card, lock it. If you suspect identity theft or want to prevent someone from opening credit cards or loans in your name, freeze your credit report through Equifax, Experian, or TransUnion. You can do both at the same time if needed.
A credit freeze is free and takes a few minutes online. It doesn't affect your existing accounts or your credit score, but it does slow down your own credit applications until you unfreeze. Most people who freeze their credit do it after identity theft or as a precaution against it.
Why locking is better than leaving a lost card unprotected
If you lose your card and don't lock it, someone who finds it can use it for purchases until you report it lost. Even though federal law limits your liability for fraudulent charges to $50, you still have to notice the fraud, report it, and dispute each charge — a process that takes time and attention.
Locking takes five seconds and stops new charges immediately. You can lock it while you're still looking for it, then unlock it if you find it. If you don't find it after a day or two, report it lost and request a replacement. The combination of locking first and reporting second gives you the fastest protection with the least hassle.
Locking also gives you time to check your account for any charges that went through before you locked it. If you spot something fraudulent, you can report it right away instead of discovering it weeks later on a statement.
Frequently Asked Questions
Does locking my card hurt my credit score?
No. Locking a card doesn't close the account, so it doesn't affect your credit utilization, payment history, or account age. Your credit score stays the same whether the card is locked or unlocked.
Can I still make online purchases if my card is locked?
No. Online purchases are treated as new charges, so they'll be declined if your card is locked. You'll need to unlock the card first. Recurring charges you've already set up may go through depending on your issuer, but new online purchases will not.
What happens to my rewards if I lock my card?
Your rewards balance doesn't change. Locking the card doesn't cancel your rewards program or erase points you've already earned. Rewards you earn from charges made before you locked the card will still post normally.
If I lock my card, will my bank notify me?
Most issuers send a notification when you lock or unlock your card, either through the app or by email. Check your app settings to confirm notifications are turned on. This helps you catch unauthorized lock or unlock attempts on your account.
Can someone else unlock my card if they have my phone?
If they can log into your account, yes. This is why you should use a strong password and enable two-factor authentication on your banking app. If your phone is stolen, contact your issuer immediately and ask them to lock your account until you can change your password.