Saving and Investing
Clear guides on how money grows: interest, compounding, saving and government debt.
What is compound interest? A simple guide with examples
Compound interest is interest that earns interest on the interest already accrued. We explain the concept, the formula and a worked example, in plain language.
11 min readSimple vs compound interest: the difference, in numbers
Simple and compound interest end up far apart, and 30 years is where you see it. Where each one really applies, and the gap at 5, 20 and 30 years in euros.
2 min readInflation in Spain and what it does to your money
Spanish prices have taken real purchasing power since 2021, and the INE figures say how much. What inflation is, and how the CPI measures it step by step.
6 min readSpanish Treasury bill yields: how they work and how to buy
A Spanish treasury bill yield follows an official formula, not the one most guides print. How the Letra del Tesoro auction sets your price, and what tax takes.
12 min readTAE and TIN: what each measures, and which to compare
The TIN is a term of your contract and the TAE is a figure the Bank of Spain defines. Which fees the law puts inside the TAE, and why a short loan costs more.
10 min read
The content is educational and does not constitute financial advice.