The Platinum Cash Back Rewards is a personal credit card from Platinum Cash Back Rewards. The annual fee is $0 annual fee. The ongoing APR is 15.50% after a 0% APR* introductory rate for 7 months. Approval typically requires a credit score of Fair (580+) or higher. Rewards: Unlimited 1% cash back on qualified purchases. Cash back: 1% cash back on qualified purchases. Typical credit limit: $5,000.