If you have a promo code you are ready to use on your purchase, follow the steps below:
1. Go to your cart and click "Checkout."
2. Either sign in to your account or click "Continue as Guest." If you continue as a guest, you will need to enter your email address and phone number so Best Buy can contact you about your order as needed.
3. Click "Continue to Payment Information."
4. Under the payment options, click the link that says, "Use a Best Buy Gift Card, Discount Code or Store Credit."
5. Enter the coupon code into the field that appears and continue checkout as usual.