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guito’s Calculators simulate financial scenarios — income tax, net salary, the tax due when buying or selling a home — and results update as you adjust the inputs.

Available calculators

Taxes

  • Income tax (IRS) simulator — estimate your annual income tax.
  • Net salary — work out your take-home pay from a gross salary.
  • Property transfer tax (IMT) — the tax due when buying a home.
  • Municipal property tax (IMI) — the annual property tax.
  • Property capital gains — the tax on selling a home.
  • Self-employed (recibos verdes) — taxes and contributions on self-employment income.

Housing

  • Mortgage payment — your monthly installment.
  • Euribor impact — how a rate change affects your payment.
  • Cost of buying a home — the upfront costs of a purchase.
  • Rent vs buy — compare renting against buying.
  • Mortgage transfer — compare your current installment with another bank’s.
  • Property value estimator — estimate market value from floor area and municipality.
  • Rental yield — the annual return from renting out a property, after income tax on the rent.

Personal finance

  • Debt-to-income ratio — how much of your income goes toward debt payments.
  • Unemployment benefit — your estimated benefit.
  • Opportunity cost — what an expense could be worth if invested instead.
  • Investor profile — gauge your risk profile.
  • Expenses calculator — see where your monthly budget goes.
  • Energy comparison — compare electricity and gas offers. The supplier list follows ERSE’s catalogue: suppliers that leave the market stop appearing, and the regulated gas market shows up once, as Comercializador de Último Recurso.

How to use a calculator

Go to Calculators (/calculators) in the sidebar, pick the calculator you need and enter the values for the scenario you want to simulate.
The calculators are simulation tools and do not constitute financial advice.

Net worth overview

See your total net worth and how it evolves over time.

Investments

Track stocks, funds and certificates across your portfolios.