To lock your credit card, open your issuer’s mobile app or website, go to the card’s management screen, and flip the lock toggle on; if you’d rather not use a screen, call the customer service number on the back of the card and follow the prompts for card security. The lock takes effect within about a minute and blocks new purchases, cash advances, and balance transfers without closing the account or changing your card number.
Lock It From the Mobile App
Sign in to your card issuer’s official app. Most banking apps support fingerprint or facial recognition, so you can get in without typing a password. If biometric login isn’t set up, use your username and password and enter any one-time code the app sends by text or authenticator.
Tap the credit card you want to lock. The card management screen usually shows an image of your card with a toggle switch, a lock icon, or a button labeled something like “Lock Card” or “Freeze Card.” Tap or slide it to the locked position. Some apps ask you to confirm in a pop-up.1Chase. Lock and Unlock Your Credit Card
You’ll see a visual confirmation: the toggle changes color, a lock icon appears on the card image, or a banner pops up at the top of the screen. Start to finish, about 30 seconds.
Lock It From a Web Browser
Log in to your issuer’s website from any computer or mobile browser and go to the account page for the card you want to lock. Look in the account menu for a link labeled “Card Management,” “Security Settings,” or “Lock & Unlock Card.”
If more than one card sits on the account, pick the specific card first. Click the lock button or toggle. The site may show a brief note that the lock is temporary and reversible before asking you to confirm. Once you confirm, the page refreshes to a locked status, usually with a small lock icon next to the card image.
Lock It by Phone
Call the customer service number printed on the back of your card or on your monthly statement. Most issuers put you through an automated system first. Listen for prompts about card security, lost or stolen cards, or account services, and press the corresponding number keys.
The system verifies your identity, usually by asking for the last four digits of your Social Security number, your ZIP code, or an account PIN. After verification, follow the prompts to lock the card. You’ll get a confirmation number or a verbal confirmation that the lock is in place. Write the number down.
To skip the automated menu, press zero or say “representative” and a live agent can lock the card for you.
If You’re Traveling Abroad
You can still lock your card by phone from outside the United States. Most issuers accept collect calls from international travelers at no charge to you. Contact an international operator, tell them you’re calling the U.S. collect, and give them the issuer’s international phone number, which is often different from the domestic line and listed on the issuer’s website.2Capital One Help Center. Collect Call Support The app and website also work anywhere you have internet access.
What a Lock Stops, and What Still Goes Through
A lock immediately blocks new purchases, cash advances, and balance transfers. If someone finds your physical card and tries to swipe it, the transaction is declined.
Several kinds of activity continue anyway:
- Recurring payments. Subscriptions, utility bills, gym memberships, and other pre-authorized automatic charges generally still process. This is consistent across major issuers including Chase, American Express, Citi, Discover, and Wells Fargo.3PNC Bank. PNC Easy Lock
- Digital wallet transactions. At some issuers, purchases through Apple Pay, Google Pay, or similar wallets may still go through on a locked card.
- Refunds and credits. Merchants can still post returns and refunds to the locked card.
- Fees and interest. Any existing balance keeps accruing interest, and account fees like annual fees still apply.
Because recurring charges and fees keep processing, locking your card does not pause your obligation to make at least the minimum payment by your due date.
Lock or Report It Stolen?
A lock is for situations where you think you’ve misplaced the card but expect to find it: left at a restaurant, slipped between couch cushions. It’s fully reversible, so once the card turns up you toggle it off and keep using the same card number.
Reporting a card stolen is permanent. The issuer deactivates the old number and mails a new card with a new number, and you’ll need to update every account where the old number was saved, from streaming services to autopay to online shopping profiles. Choose this path when you’re confident the card is in someone else’s hands or you’ve already spotted unauthorized charges.
Under federal law, if you report unauthorized use before any fraudulent charges post, your liability is $0. If charges have already been made, your liability is capped at $50.4Office of the Law Revision Counsel. 15 USC 1643 – Liability of Holder of Credit Card Visa, Mastercard, and most major issuers apply zero-liability fraud policies that waive even that $50 in practice.5Visa. Visa Zero Liability Policy
How to Unlock the Card
Unlocking is the same process in reverse. Open the app or website, go to the card management screen, and toggle the lock off. By phone, call customer service and choose the unlock option. The card becomes usable for new transactions immediately.1Chase. Lock and Unlock Your Credit Card
There’s generally no time limit on how long you can leave a card locked. Just remember that interest and recurring charges keep running, so set a reminder for your due date if the lock stays on for a while.
Does Locking Hurt Your Credit Score?
No. Card issuers don’t report locks to the credit bureaus, because a lock is a temporary security measure rather than a signal about how you handle debt. Your credit limit, balance, and payment history keep reporting normally.
The one caveat is that a missed payment on a locked card damages your credit the same way it would on an active card, since your minimum payment obligation continues.
A Card Lock Is Not a Credit Freeze
A card lock and a credit freeze do different jobs. A card lock stops new purchases on a specific card you already hold. A credit freeze, sometimes called a security freeze, blocks lenders from pulling your credit report, which prevents new accounts from being opened in your name. The two operate independently, so you can have both active at once.
If you’re worried your Social Security number or date of birth has been compromised, a credit freeze is the right tool. If the concern is just charges on an existing card, a lock is what you need.
Authorized Users
If you’re the primary account holder, you can lock or unlock cards issued to your authorized users at any time.6Capital One Help Center. Understanding Personal Credit Card User Roles Authorized users usually can’t lock or unlock the primary account holder’s card, and on some accounts can’t lock their own card either. If you’re an authorized user who needs a card locked, contact the primary account holder or call the issuer directly to ask what options you have.