You can lock your debit card in seconds through the Bank of America app, website, or by calling customer service

A locked card stops anyone from using it—even if they have the physical card in hand. Bank of America lets you lock and unlock your own debit card when ready through their mobile app or online banking portal. The card itself stays in your wallet; locking just disables it temporarily. You can unlock it the same way whenever you need to use it again.

This is different from reporting a card lost or stolen, which requires you to order a replacement. Locking is the faster move if you've misplaced the card but think you'll find it, or if you want to stop transactions while you investigate fraud.

Key Takeaways

  • Lock your card through the Bank of America mobile app by tapping the card image and selecting the lock option, or through online banking under Card Services.
  • A locked card cannot be used for purchases, ATM withdrawals, or online transactions, even if someone has the physical card.
  • You can unlock your card when ready through the same app or website whenever you need to use it again.
  • If you cannot find your card after locking it, you can report it lost or stolen and order a replacement without unlocking it first.
  • Locking your card does not affect your account balance, pending transactions, or your ability to receive deposits.

Lock your card through the Bank of America mobile app

Open the Bank of America app and sign in. Tap the debit card image at the top of the screen—it shows your card number and balance. You'll see a lock icon or a toggle labeled "Lock Card" or "Card Lock." Tap it. The app will confirm the lock is active, usually with a message saying your card is now locked and cannot be used.

The lock takes effect when ready. You do not need to wait for a confirmation email or text, though Bank of America typically sends both. If you need to unlock it, tap the same card image and toggle the lock off.

Lock your card through Bank of America online banking

Go to bankofamerica.com and sign in. Click on the debit card you want to lock. Look for a section called "Card Services" or "Card Controls." You'll see an option to lock the card. Click it, and the system will ask you to confirm. Once you confirm, the card is locked when ready.

The online process is slightly slower than the app—you may need to navigate through a few more screens—but it works just as fast once you confirm. If you do not see a lock option in Card Services, your account type or card product may not support this feature; call customer service to check.

Lock your card by phone

Call Bank of America customer service at the number on the back of your card. Tell the representative you want to lock your debit card. They will verify your identity and lock it on the spot. The lock is active when ready, even though you are still on the call.

This route takes longer than the app or website—usually 5 to 10 minutes—but it is the only option if you cannot access your phone or computer, or if you do not have the Bank of America app installed.

What happens when your card is locked

A locked card cannot be used for in-store purchases, online shopping, ATM withdrawals, or any other transaction. If someone tries to use the card—whether they have the physical card or just the number—the transaction will be declined. The card remains locked until you unlock it yourself.

Locking does not freeze your account. Money can still be deposited into your account, and automatic payments set up before the lock will continue to process. Direct deposits, bill payments, and transfers are not affected. Only transactions that require the debit card itself are blocked.

Unlock your card when you need it again

Use the same method you used to lock it: the app, the website, or a phone call. In the app, tap the card image and toggle the lock off. On the website, go to Card Services and click the unlock option. On the phone, tell the representative you want to unlock the card. All three methods take effect when ready.

There is no limit to how many times you can lock and unlock your card. You can lock it again at any time if you feel unsafe or want to stop using it temporarily.

What to do if you cannot find your card after locking it

Leave the card locked while you search for it. If you find it, unlock it and use it normally. If you do not find it after a reasonable search—usually a few days—report it lost or stolen instead of just leaving it locked.

To report it lost or stolen, call customer service or use the app. Bank of America will deactivate the card permanently and order you a replacement, which usually arrives within 5 to 10 business days. You do not need to unlock the card first; you can report it lost while it is still locked. Once you report it lost, you cannot unlock it again.

Frequently Asked Questions

Can someone use my card if it is locked but they have the card number?

No. A locked card cannot be used for any transaction, whether someone has the physical card, the card number, or both. The lock blocks all uses of that specific card, regardless of how the transaction is attempted.

Will locking my card affect my credit score?

No. Locking a debit card has no effect on your credit score because debit cards are not a form of credit. Your credit score is based on credit accounts like credit cards, loans, and lines of credit, not on debit card activity.

What if I lock my card and then forget I locked it?

Your transaction will be declined at checkout or the ATM, and you will get an error message. Check the Bank of America app to see if your card is locked. If it is, unlock it and try the transaction again. You can also call customer service to ask whether your card is locked.

Can I lock my card if I am traveling?

Yes. You can lock and unlock your card from anywhere as long as you have internet access or can make a phone call. This is useful if you are worried about theft while traveling or if you want to stop using the card temporarily.

Does locking my card stop pending transactions?

No. Transactions that were already approved before you locked the card will still go through. Locking only stops new transactions from being approved after the lock is active. Check your recent transactions in the app to see what is pending.