Power Business Cash Back Credit Card — Security Service Federal Credit Union is a business credit card from Security Service Federal Credit Union. The ongoing APR is 13.74% - 18.00% variable (APR accurate as of 9/17/26). Signup bonus: $50 Cash Back with $1,000 spent in the first 90 days. Rewards: 3% Cash Back for every $1 spent on gas, travel, dining, & warehouse clubs; 1% Cash Back for all other purchases; no limit on cash back earned.