Cash Back Category Optimizer
Free cash back category optimizer for comparing flat-rate rewards, grocery bonuses, dining bonuses and rotating 5% category caps.
Free calculator · local browser workflow
Fast answer: Use this tool to estimate or prepare locally, then verify official terms before applying, subscribing, traveling or submitting requests.
Original graphicFAQ schemaOfficial verification
Calculator
Inputs stay in your browser. Do not enter SSNs, passwords, full card numbers, tax IDs, claim IDs or private account details.
How to use this tool
Enter your monthly grocery, dining and gas or transit spend, then compare a simple flat-rate card against a rotating or bonus-category strategy. Use conservative numbers and subtract annual fees separately before choosing a card.
How to avoid mistakes
Do not chase a high category rate if you cannot activate categories, if a merchant codes differently, if caps are low, or if the card has fees that erase the extra rewards. Check the official rewards terms before applying.
Official verification box
Use official issuer reward-program terms and activation calendars before relying on category rewards.
- Official issuer rewards terms and cardmember agreements
- Official rotating-category activation calendars
- CFPB credit card shopping guidance — official source
- If an official source conflicts with this tool, the official source controls.
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Disclaimer
This page is educational only. It is not personalized financial, legal, tax, credit, security, travel, insurance or compliance advice. Terms, fees, laws, eligibility and network conditions can change.
FAQ
What categories should I compare?
Start with recurring categories like groceries, dining, gas, transit, travel and online shopping.
Do category caps matter?
Yes. A 5% rate only applies until the cap or eligible category limit is reached.
Do merchant codes affect rewards?
Yes. Issuers decide how a merchant codes, so a purchase may not earn the expected category rate.
Should I subtract annual fees?
Yes. Use the annual fee calculator or subtract fees from estimated rewards.
Is this card advice?
No. It is educational math, not personalized credit, legal or financial advice.