You can pay your Best Buy credit card bill online, by phone, by mail, or in store — and the method you choose affects when the payment posts

Best Buy's credit card is issued by Citi, so payments go to Citi, not to Best Buy itself. You have four main ways to pay: through the Citi website or mobile app, by calling Citi's customer service line, by mailing a check, or by paying in person at a Best Buy store. Each method has different timing — online and phone payments usually post within one business day, while mail takes five to seven business days and in-store payments may take longer to appear on your account.

The key detail most people miss: your due date is the date Citi needs to receive the payment, not the date you send it. If you mail a check and it arrives on the due date, you are late. If you pay online at 11:59 p.m. on the due date, you are on time. This matters because a late payment can trigger a fee and affect your credit score.

Key Takeaways

  • Online and phone payments post within one business day, while mailed checks take five to seven business days to clear.
  • Your due date is when Citi must receive the payment, not when you send it, so mail payments need to leave earlier to arrive on time.
  • You can pay through the Citi website, the Citi mobile app, by phone at the number on your statement, by mail to the address on your bill, or in person at Best Buy.
  • Setting up automatic payments through your bank or the Citi app removes the timing risk and ensures you never miss a due date.

Paying online through the Citi website or app

Log in to your Citi account at citi.com or open the Citi Mobile App. Navigate to your Best Buy credit card account and select "Make a Payment" or "Pay Now." You can pay the full balance, the minimum payment, or any amount in between. Enter the payment amount and confirm — the payment posts within one business day.

Online payments are fastest and leave a record you can screenshot or read. You can also set up a one-time payment or schedule recurring automatic payments through the same interface. If you schedule a payment for a future date, Citi will process it on that date, so it will post by the next business day.

Paying by phone

Call the customer service number on the back of your Best Buy credit card or on your statement. A representative will verify your identity and process the payment over the phone. You can pay with a bank account (checking or savings) or another debit card. Phone payments also post within one business day.

Phone payments are useful if you have questions about your account or need help with the payment process, but they do not leave an automatic record the way online payments do. Ask the representative for a confirmation number and write it down.

Paying by mail

Write a check to Citi and mail it to the address shown on your statement under "Payment Address" — this is different from your billing address. Include your account number on the check. Mail payments take five to seven business days to clear, so you need to send your check at least a week before your due date to may support it arrives on time.

The main risk with mail is timing. If your due date is the 15th and you mail a check on the 10th, it may not arrive until the 17th or 18th, triggering a late fee. Use mail only if you have a buffer of at least seven days before your due date, or use it for payments that are not due yet.

Paying in person at Best Buy

You can walk into any Best Buy store and pay your credit card bill at the customer service desk. Bring your card or account number. The store will process the payment and give you a receipt, but the payment may take several business days to post to your Citi account because the store must forward it to Citi.

In-store payments are convenient if you are already at Best Buy, but they are slower than online or phone payments and do not may provide the payment will post by your due date. If your due date is soon, use online or phone payment instead.

Setting up automatic payments to avoid missed due dates

The simplest way to never miss a payment is to set up automatic payments through Citi. Log into your Citi account, go to "Manage Automatic Payments," and choose a payment date and amount. You can set it to pay the full balance, the minimum, or a fixed amount each month. Citi will deduct the payment from your bank account on the date you choose.

Automatic payments remove the timing risk entirely — Citi handles the posting date, and you do not have to remember to pay. You can also set up automatic payments through your own bank's bill pay feature, which sends a check or electronic payment to Citi on the date you specify. Both methods work, but Citi's automatic payment system is faster because it is electronic.

What to do if you miss a payment or cannot pay by the due date

If you miss your due date, Citi will charge a late fee (the amount varies but is typically $25 to $40 for the first late payment) and may report the late payment to credit bureaus, which can lower your credit score. If you realize you will miss the due date, call Citi when ready — sometimes they will waive a single late fee if you have a good payment history, though they are not required to.

If you cannot pay the full balance, pay at least the minimum by the due date to avoid the late fee. You can pay the rest later without penalty. If you are struggling with the balance, ask Citi about a hardship program or payment plan, though these are not may provide and depend on your situation.

Frequently Asked Questions

How do I know if my payment posted?

Log into your Citi account online or in the app and check your account balance and recent transactions. Online and phone payments post within one business day. Mail and in-store payments take longer. If you paid online or by phone and the payment does not show within two business days, call Citi to confirm it was received.

Can I pay my Best Buy credit card bill at a Best Buy store with cash?

Yes, you can pay in cash at the customer service desk. Bring your card or account number. The store will give you a receipt, but the payment will take several business days to post to your Citi account because the store forwards it to Citi.

What if I pay more than I owe?

The overpayment becomes a credit on your account. You can use it toward future purchases, or you can request a refund from Citi. Refunds are usually mailed as a check within one to two weeks.

Is there a fee to pay my Best Buy credit card bill?

No, Citi does not charge a fee for any payment method — online, phone, mail, or in store. However, if you use a third-party payment service or wire transfer, that service may charge a fee.

What time does my online payment need to be submitted to post by the due date?

Online payments submitted before midnight on the due date will post by the next business day, which is still on time. However, if your due date falls on a weekend or holiday, the important date may be earlier — check your statement for the exact cutoff time.