Adding a card takes three steps and works the same way whether it's your first card or a replacement

To add a credit card to Amazon, you go to your account settings, find the payment method section, and enter your card details. Amazon stores the information securely and uses it for future purchases unless you choose a different card at checkout. The process takes about two minutes and you can add as many cards as you want.

You'll need the card itself in front of you — the 16-digit number, expiration date, and three-digit security code on the back. If you're adding a card that's already linked to another Amazon account (like a family member's), that's fine; one card can be on multiple accounts.

Key Takeaways

  • You add cards through Account Settings > Login & Security > Payment Options, not through checkout.
  • Amazon asks for your card number, expiration date, security code, and billing address — the address must match what your card issuer has on file.
  • Your card won't be charged just for adding it; Amazon only charges when you complete a purchase.
  • You can set one card as your default, but you can choose a different card at checkout any time.
  • If a card is declined when you try to use it, the problem is usually a mismatch between your billing address and what the card issuer has recorded.

Step-by-step: where to find the payment method section

Start by signing into your Amazon account. In the top right corner, hover over "Account & Lists" and click "Account" from the dropdown menu. This takes you to your account page.

On the left side of the page, you'll see a menu. Click "Login & Security." Scroll down until you see "Payment Options" — this is where all your saved cards live. Click "Add a payment method" or the plus icon next to an existing card.

Amazon will ask whether you want to add a credit card, debit card, or prepaid card. Choose the type that matches what you're adding, then enter the card number, expiration date, and the three-digit security code (called the CVV) from the back of the card.

Why Amazon needs your billing address and how to fix mismatches

After you enter the card number, Amazon asks for the billing address — the address your card issuer has on file, not necessarily where you live now. This address has to match exactly, or the card will be declined when you try to use it. If you've moved recently or your card issuer has an old address, that's usually the problem.

If your card keeps getting declined, log into your credit card company's website or app and check what address they have recorded. Update it there if it's wrong, then try adding the card to Amazon again with the corrected address. You can also call your card issuer's customer service number (on the back of the card) and ask them to confirm the billing address on file.

Some cards issued by smaller banks or credit unions occasionally have trouble with Amazon's payment system even when the address is correct. If that happens, try adding the card again after a few hours, or contact Amazon customer service to report the issue.

Setting a default card and changing which card you use

Once you've added a card, Amazon asks if you want to make it your default payment method. This is the card Amazon will suggest at checkout, but you can always pick a different one before you complete your purchase. You don't have to choose a default — Amazon will just ask you to pick a card each time.

To change your default card later, go back to Account Settings > Login & Security > Payment Options. Click the card you want to use most often and select "Set as default." You can change this any time, and it doesn't affect cards you've already used for past orders.

At checkout, you'll see all your saved cards listed. Click the one you want to use for that specific purchase, and Amazon remembers your choice for next time (though it still defaults to your primary card unless you change it again).

What happens if you add a card that's already on another Amazon account

One credit card can be saved to multiple Amazon accounts — yours, a family member's, a partner's, or anyone else's. There's no limit to how many accounts can use the same card. Amazon doesn't prevent this, and it doesn't notify the other account holders that the card is being used elsewhere.

If you share a card with someone and want to keep your purchases separate, make sure you're signed into your own account before you shop. Each account has its own order history and default address, so using the same card on different accounts won't mix up your orders.

Removing a card you no longer want to use

If you want to stop using a card, go to Account Settings > Login & Security > Payment Options, find the card in the list, and click "Delete." You can only delete a card if you have at least one other payment method saved — Amazon won't let you remove your last card.

Deleting a card from your account doesn't affect past purchases or refunds. If you're owed a refund and the original card is deleted, Amazon will refund to your bank account instead, and it usually takes three to five business days to appear.

Why Amazon sometimes asks you to re-enter your card information

Occasionally Amazon will ask you to confirm your card details even though the card is already saved. This usually happens after you haven't used the card for a long time, or if Amazon's security system flags unusual activity on your account. It's a normal safety check and doesn't mean anything is wrong with your card.

If Amazon asks you to re-enter information and you're not sure why, it's safe to do so — you're on Amazon's official website, not a phishing site, as long as you got there by signing in normally (not by clicking a link in an email). If you're ever unsure, you can always call Amazon customer service at the number on your account page.

Frequently Asked Questions

Does Amazon charge my card just for adding it?

No. Amazon only charges your card when you complete a purchase. Adding a card to your account doesn't result in any charge. Some card issuers place a temporary hold to verify the card is real, but this hold is released within a few days and you're never actually charged.

Can I add a card if I don't have a billing address in the US?

Amazon accepts cards from many countries, but the billing address must match what your card issuer has on file. If your card issuer is outside the US, you can still add it as long as you enter the correct international address. Some international cards may be declined anyway due to payment processing restrictions, in which case contacting Amazon customer service is your best option.

What if I see a card on my account that I didn't add?

If you see a payment method you don't recognize, remove it immediately by clicking "Delete" next to that card. Then change your Amazon password and enable two-factor authentication in your security settings. If you see charges you didn't make, contact Amazon customer service right away to report unauthorized purchases.

Can I use a prepaid card or gift card on Amazon?

Yes. Prepaid cards and Visa or Mastercard gift cards work the same way as regular credit or debit cards — just add them through Payment Options with the card number, expiration date, and security code. The billing address should be the address associated with the card or the address where it was purchased.

Why does Amazon keep declining my card even though I have money?

The most common reason is a mismatch between the billing address you entered and what your card issuer has on file. Check your card issuer's records and make sure the address, spelling, and zip code are exactly the same. Other reasons include the card being expired, the security code being wrong, or your card issuer blocking the transaction for fraud prevention — call your card company to ask if they've flagged Amazon purchases.