The Instituto para la Protección al Ahorro Bancario covers up to 400,000 UDIs per depositor per Banca Múltiple institution. UDIs (Unidades de Inversión) are an inflation-indexed unit published daily by Banco de México. Because the unit floats with CPI, the MXN-equivalent ceiling is not a fixed number — it drifts upward year on year, roughly tracking Mexican inflation.
As a working figure for 2026, 1 UDI ≈ MXN ~9, which puts the IPAB ceiling at ~MXN 3.5 million per depositor per institution. This is an indicative number — for a precise current value, look up the UDI on Banco de México's site or the institution's IPAB-cover disclosure. Do not memorise a specific peso figure; the inflation-indexing is the load-bearing fact.
The mass-market consumer fintechs in this ranking do not sit under the IPAB scheme. Nu México as a SOFIPO sits under PROSOFIPO, which has a meaningfully smaller per-depositor ceiling (around UDI 25,000, ~MXN 220k as of 2026). Mercado Pago Mexico and Albo as IFPEs sit under the Fintech Law's segregation rules — protected from the failure of the operator, but with no statutory deposit insurance. Klar as a SOFOM ER is a non-deposit-taking entity in the prudential sense, so the question does not arise — but neither do you have an interest-bearing deposit account with it.