Once you're a Preferred Rewards for Business member, you'll earn 25% - 75% more rewards on every purchase made with eligible Bank of America credit cards. Your reward bonus is based on your enrolled tier: Gold 25%, Platinum 50% or Platinum Honors 75%. For example, a purchase that typically earns $1 in cash rewards will earn $1.25 to $1.75, depending on your Preferred Rewards for Business tier. Bank of America credit cards offer many different benefits to enhance what matters most to you — from cash back to dining and travel rewards.