Jenny, very simple. Just add the item to your cart and proceed to checkout. First page will ask for your address or if you're buying a firearm it'll ask for a FFL dealer. Next page will ask how you want to pay, just click on credit/gift card. Last page at the top will have an option to enter your gift cards code. Just enter the code and confirm the order. If your order is more than the gift card you can finish paying it off with a debit/credit card, just scroll down after entering your gift card code to add your credit info if necessary. I've used quite a few gift cards and they have all gone smoothly. Hope this helps.

This is exactly what you'll see on the payment page of your order as I just copied this from my order.
Enter Gift Card Code
(Advertised Cash Discount Price does not Apply to the Amount of Your Order Paid with a Gift Card.)
Gift Card Code:

at checkout I cut and paste the gift card number

This is exactly what you'll see on the payment page of your order as I just copied this from my order.
Enter Gift Card Code
(Advertised Cash Discount Price does not Apply to the Amount of Your Order Paid with a Gift Card.)
Gift Card Code:

Jenny, just enter the Gift Card number (you will be presented the option when you select payment method of Credit / Gift Card) during the checkout process. Cheers and stay safe!

Jenny, you should be able to choose 'Gift Card' as the payment option, then you enter your gift card numbers, however the last few purchases I made with gift cards, it wasn't working and I had to do it over the phone. Not sure if Bud's has resolved that issue. If you can't do it at checkout, Buds Customer Service can help you check out at 1-859-368-0371 9am-8pm EST Mon-Fri. or use the Blue Chat now button at the bottom right corner 9am to 8pm Mon - Sat