Varied parameter
Income tax rate
0% → 30%
Income Tax Comparison
Retail worker in Barcelona · Family-first life
This page compares financial outcomes for a Retail worker living in Barcelona, Spain, following the Family-first life life scenario.
A financial path shaped by long-term household responsibilities and shared priorities. Progress trades flexibility for stability, planning, and collective decision-making.
Barcelona combines a broad service and tech market with elevated living costs relative to the Spanish national average.
The comparison focuses on how changing the Income tax rate influences long-term results, while all other assumptions remain constant.
Simulation Overview
Base scenario assumptions
- The simulation starts at age 30 and runs until age 65.
- The initial annual labor income is €11,340.
- Labor income grows annually at an average rate of 2%.
- The labor income tax rate varies between 0% and 30%.
- The saving rate is set to 15%.
- Minimum annual living expenses are €13,920.
- Savings are invested with stochastic annual returns.
- The average annual return is 5%, with year-to-year variability.
- All values are expressed in real terms, assuming average annual inflation of 2%.
- The simulation includes stochastic life events such as unemployment, health issue, and health issue.
- These events may temporarily affect income, expenses, or net worth.
- Financial independence is defined as having net worth equal to 25 times annual expenses.
- Bankruptcy is triggered if net worth remains below €0 for 2 consecutive years.
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Scenario Comparison
Results are shown as a realistic range. P10 represents a pessimistic outcome, while P90 represents an optimistic outcome. Most simulations fall between these two values.
| Scenario | Median Net Worth | P10 Net Worth | P90 Net Worth | FI Probability | FI Median Age |
|---|---|---|---|---|---|
| 0% | 20,788 | 2,108 | 40,851 | 0% | — |
| 10% | -16,343 | -31,265 | -4,353 | 0% | — |
| 20% | -58,686 | -73,003 | -47,181 | 0% | — |
| 30% | -111,344 | -124,526 | -99,855 | 0% | — |
How Your Financial Life Evolves
These charts show how each scenario affects long-term outcomes, including expected wealth, downside risk, and the likelihood of achieving financial independence.
Net Worth Median
Net Worth Range
Fi Probability
