Investing glossary
Savings tax base (IRPF)
The savings tax base is the part of the Spanish tax return where capital gains (selling funds, shares, etc.) and investment income are taxed, with increasing brackets depending on the amount.
It is different from the general tax base (which includes your salary): it is taxed at its own rates, usually lower than the top brackets of the general IRPF.
The exact brackets and their rates change over time depending on current regulation, so it is always worth checking the Spanish Tax Agency or a tax advisor for the up-to-date figure before making decisions.