Revolving Credit Cards in Spain Explained

A "tarjeta revolving" is a revolving-credit card widely sold by Spanish banks and consumer-finance companies, distinct from the one-off microcréditos covered elsewhere on this site. Instead of borrowing a fixed sum for a fixed term, the cardholder draws on a reusable credit line and repays it through a small monthly instalment, with interest accruing on whatever balance remains outstanding — which can drag repayment out for years if only the minimum is paid.

These products became a major consumer-protection story in Spain after a series of Tribunal Supremo rulings on what counts as a usurious ("usurario") interest rate under the century-old Ley de Represión de la Usura. In its February 2023 ruling (258/2023), the Supreme Court settled on a clearer test: a revolving card's TAE is usurious if it exceeds the average market rate for that product category — as tracked by the Banco de España — by more than six percentage points at the time the contract was signed.

This is a meaningfully different legal test from the one that applies to a short-term microcrédito. Microloans are judged mainly on transparent pre-contractual disclosure (the FIN form) and standard consumer-credit rules; revolving cards have their own body of Supreme Court case law specifically addressing the compounding effect of long-running, minimum-payment-only debt, because the total cost paid over years of a slowly repaid revolving balance can end up far exceeding the amount originally borrowed.

For a consumer trying to tell the two products apart: a microcrédito is a single loan with a defined euro amount and a defined end date, usually repaid within weeks or a few months. A revolving card has no natural end date — the balance can be redrawn indefinitely as it is paid down, and the TAE applies to a rotating balance rather than a one-time principal, which is precisely the mechanic that produces the long-term cost problem Spanish courts have targeted.

Anyone holding an older Spanish revolving card with a high advertised interest rate and a long repayment history can, in principle, review whether the contracted TAE exceeded the market-average-plus-six-points threshold at signing and, if so, pursue a claim through the courts for interest paid above the legal maximum. This is a distinct legal remedy from anything available for a standard short-term microcrédito, and anyone considering it should seek independent legal advice rather than treat this guide as legal counsel.