Spain cash erosion rises as inflation tops deposits

The report frames the issue as a drag on household wealth and on the broader economy. Spanish households have 943.5 billion euros parked in bank accounts, money that Revolut says subtracts 65.2 billion euros from annual economic growth by sitting inactive instead of being channeled into capital markets or productive investment.

That matters for investors because the gap between inflation and deposit yields is pushing more savers toward funds, ETFs and other market-based products, while also underscoring why banks can retain cheap deposits even as customer purchasing power erodes. Revolut argues that shifting dormant cash into diversified capital markets, using the MSCI Europe ETF’s 10-year annualized return of 9.06% as a benchmark, could generate 691 euros a year for every 10,000 euros saved.

The findings also point to structural barriers that keep retail cash trapped. Revolut said 37.7% of respondents misjudge or do not know their real after-inflation return, while 58.2% of Spanish savers have never switched banks to seek better yields. Fragmentation across multiple financial apps is another hurdle, with 50.2% of respondents using several platforms and nearly half of those saying it makes investing harder.

For markets, that creates a clear winner-and-loser setup: cash-heavy banks benefit from inertia, while fintechs, brokers and asset managers gain if savers start moving idle balances into higher-return products. The next catalyst is whether persistent inflation and weak deposit rates accelerate a rotation out of low-yield accounts into deposits, money-market funds and ETFs.