Educational tools

Savings simulators

These tools illustrate how different savings products work mathematically. They are for educational purposes only and do not constitute financial advice or a commitment of any kind.

All calculations shown are illustrative only. They do not account for inflation, tax treatment, bank fees or actual product availability. Always review the specific terms of any product before making a decision.

Term Deposit Simulator

See how a fixed-term deposit grows at a given annual rate over a chosen period.

Initial deposit (€)

Annual interest rate (%)

Term (years)

Estimated final value

Illustrative only. Does not include tax or fees.

Recurring Savings Plan

Explore how regular monthly contributions build up over time alongside an initial lump sum.

Starting capital (€)

Monthly contribution (€)

Annual return (%)

Period (years)

Estimated accumulated value

Illustrative only. Assumes constant rate throughout.

Conservative Fund Growth

Illustrate potential growth of a conservative fund investment using a hypothetical annual return.

Initial investment (€)

Hypothetical annual return (%)

Investment horizon (years)

Illustrative fund value

Funds do not guarantee capital. Past returns do not predict future results.

Understanding the numbers

Key concepts behind the simulators

TAE vs TIN

The TIN (Tipo de Interés Nominal) is the basic rate applied to your deposit. The TAE (Tasa Anual Equivalente) includes the effect of compounding frequency and any fees, giving a more complete picture of the actual annual return. Always compare products using their TAE.

Compound vs simple interest

Simple interest applies only to the original principal. Compound interest applies to both principal and previously earned interest. Over longer periods, the difference becomes significant. Most Spanish term deposits pay simple interest at maturity.

Real return and inflation

The nominal return shown in these simulators does not account for inflation. If inflation exceeds your deposit rate, the real purchasing power of your savings declines even though the nominal balance grows. This is a key concept in evaluating savings products.

Tax on savings income

Interest from deposits and returns from funds in Spain are subject to capital gains tax (IRPF on rendimientos del capital mobiliario). The applicable rate depends on the amount earned. Understanding the after-tax return is important when comparing products.

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