Zona Ciega

Personal finance in Mexico

The rate they advertise isn't what you pay.

Zona Ciega explains loans, cards and credit in Mexico, with every number linked to its source.

LoansSame 42% rate, twice the cost: what the interest rate doesn't tell youTwo loans of 10,000 pesos, both at 42% a year. Banxico works out that one really costs 77.1% a year and the other 147.8%. The difference is how the interest is charged, and the rate alone won't show it.Read the article

Check your own numbers

Copy the numbers from an offer or a statement and see what it really costs you.

Banxico's own example10,000 pesos, 13 weekly payments, a 200-peso opening fee.

Advertised rate42.0%
What it really costs a year147.8%
The blind spot: 105.8 points the advertised rate leaves out