American Express SimplyCash(SM)for Business Credit Card gives you 5% cash back for some expenses. These include Cell Phone Bill and also Office Supplies.
For example, this is what the cash back looks like on your statement for your cell phone fees:
American Express card rewards are not limited to only cashback or points. You also get tens or hundreds of coupons in categories like travel, shopping, dining, entertainment and others for good discounts.
For example if you want a TaxAct discount to file your taxes, here is one that gives you 30% off:
The other offer you see here gives you $25 for every $500 you spend, up to ten times which makes it a 5% deal. For example you can make estimated tax payments and still clear about 3% after expenses. As of this writing savings accounts give you only 0.5%, so 3% tax free return on your tax payments is a good deal.