Here are thebest rewards credit cardsfor Walmart shopping, plus how to combine them withonline shopping portalsto boost your earnings. com checkout *The OnePay CashRewards Mastercard is issued by Synchrony Bank pursuant to a license by Mastercard International Incorporated. **Cash back is earned as points on purchases made with your OnePay Cash Rewards Mastercard, which can be redeemed as a statement credit or as a deposit into a OnePay Cash account. By signing up, you will receive newsletters and promotional content and agree to our Terms of Use and acknowledge the data practices in our Privacy Policy . THE POINTS GUY Welcome offer : Earn $35 cash back upon account opening and 3% cash back on all non-Walmart purchases in the first 90 days from account opening.