Checkout and payments
Firearms-friendly payment processing, sales tax, fraud checks and refunds for dealers who sell online.
The credit card gun code: where federal and state law stand
Merchant category code 5723 for firearms retailers, the House bill that would ban it, and the states that require it or forbid it.
Online checkout and payments for FFL dealers
Why mainstream processors decline firearm dealers, what a firearms-friendly processor looks like, and what checkout must handle.