Beginning in April 2023, Discover will become the first credit card issuer to track gun purchases made by their cardholders.

On September 11, 2022, Breitbart News noted that Visa caved to pressure from gun control groups and New York Democrats, agreeing to flag gun and ammo purchases via a new sales categorization. The Associated Press observed that Mastercard and other major credit cards also agreed to flag gun sales.

On March 2, 2023, the Independent Journal Review (IJR) reported that Discover will be first among credit card companies to track gun sales, inasmuch as the company will begin doing so in April.