A 2% cash-back card pays you out of merchant interchange fees — not the issuer’s pocket. Understanding the mechanics shapes the smartest way to redeem.

Statement credits reduce your bill. Deposit cash hits your bank. Both are advertised as "$1 = $1" — but they affect your finances differently.

Two cards, three cards, four cards — at some point category stacking yields diminishing returns. Here is where to stop.

You do not need an Amex Business Platinum on a $50k revenue business. Here is the practical card stack at every revenue level.