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guito's IRS simulator lets you estimate the result of your annual IRS declaration before submitting it. Enter your income, deductions and family composition to find out if you'll receive a refund or have to pay.
Start by adding your income (employment, pensions, rental, capital gains, etc.), enter your municipality of residence and add tax deductions. The simulator automatically calculates the tax, shows the effective rate and indicates whether you'll get a refund or owe tax.
Yes. The simulator supports 6 income categories (A to H): employment, business, capital, property, capital gains and pensions. You can add up to 10 income sources per taxpayer and configure withholding tax for each one.
Yes. You can add a spouse to the household to simulate joint taxation. The simulator automatically applies the marital quotient and lets you compare the result with individual taxation to choose the most advantageous option.
Use the deductions menu to add health, education, housing, care home, PPR and other expenses. The simulator shows the legal limits for each category with progress bars and automatically calculates the total tax benefit.
Yes. After saving the simulation, you can use the "Compare" button to see how the same income scenario results in different values between 2024 and 2025, reflecting the legislative changes for each year.
Yes. With a guito account, simulations are saved and you can resume them later or on another device. Without an account, data remains in the browser session and is lost when you close the tab.