Five checks, each worth up to one star:
- Interest - the finance charge a month: 2.5% or less earns a full star; up to 3.5% half a star; more, or not stated, none.
- Foreign spends - the foreign currency markup: up to 1% (or none) a full star; up to 2% half a star; more, or not stated, none.
- Spend fees - fees the card charges on everyday spends (utility, rent, wallet loading, online gaming, education, fuel): none or one earns a full star; two or three half a star; four or more none.
- Clarity - of the cost questions COFFER asks of every card (fees, charges, interest), the share the bank's documents answer: 90% or more a full star; 80% or more half a star; less none.
- Fine print - places where two of the bank's own current documents say different things about the same question: none earns a full star; one half a star; two or more none.
Every check links to the bank's own sentence behind it.