The American Express Simply Cash for Business Rewards Credit Card with up to 5% Cash Back is a great rebate card for small businesses who mainly purchase the items for which you get a 5% rebate. You get a 5% rebate on purchases the merchant codes as: wireless telephone services, automobile gasoline, and office supplies and equipment, but not purchased at a warehouse club, superstore or supermarket. You get a 1% rebate on everything else.
The rebate is automatically credited to your statement each month. No needing to apply for a credit, voucher, etc.
They are currently offering 0% APR on purchases for the first 12 months.
They have free balance transfers on the initial offer and may charge after that, but not currently.
You should have good credit for this card.
There is also a Personal(Consumer) Simply Cash Rebate Card