IRPF withholding

What the retención actually is

The retención a cuenta del IRPF is the part of your pay that the employer does not hand to you: it withholds it and forwards it to the tax authority (AEAT) as an advance on your income tax. You never see it in your account, but it is money paid on your behalf, not a cost the company bears. At year-end the annual return (declaración de la renta) adds up everything withheld and compares it to the tax you actually owe — if too much was withheld you get a refund, if too little you top it up.

That is why the payslip figure is called a withholding and not a tax: the real tax is settled once a year. The monthly job is only to get close, so the employer works out a personalised rate and applies it evenly to each payment.

How the rate is built

The withholding procedure (arts. 80–86 RD 439/2007) runs in a fixed order. First the employer sets the base para calcular el tipo de retención: take the year’s expected gross, subtract the employee’s Social Security contributions, subtract the fixed other-expenses allowance of 2000,00 € (art. 19.2.f), and, for lower earners, subtract the earned-income reduction of up to 7302,00 € (art. 20). What remains is the base the scale is applied to.

Then two amounts are computed from the same national scale:

• Cuota 1 — the scale applied to the base para retención.
• Cuota 2 — the scale applied to your mínimo personal y familiar(the taxpayer’s own minimum of 5550,00 € plus the amounts for dependent children).

The cuota de retenciónis cuota 1 minus cuota 2, floored at zero (art. 85.1). Dividing it by the year’s total pay and expressing the result as a percentage gives the tipo de retención, carried to two decimals (art. 86.1) — the exact rate stamped on your payslip. Because the personal and family minimum enters as a scale credit that only reduces cuota 2, more dependent children lower the withholding rate and lift the monthly net.

The escala de retención

The scale is progressive: it is split into bands (tramos), and each band’s rate applies only to the slice of the base that falls inside it — not to the whole amount. Your effective withholding is therefore a blend of the bands up to your level, always lower than the top band you reach.

One national scale — the regional difference is annual

This is the single most misunderstood point about the Spanish payslip, so it is worth stating plainly. Spanish income tax is split roughly half to a state scale and half to a regional one that each of the 17 autonomous communities sets for itself. But the monthly withholding your employer computes uses only the national scale (art. 85.1 RD 439/2007). An employee in Madrid and one in Cataluña on the same gross have the same monthly retención.

The regional difference is real, but it is settled once a year in the declaración de la renta, as a refund or an extra payment — never in the monthly nómina. That is exactly why this tool has no region selector: a region control would falsely change your monthly take-home, when in law it does not.

Two special regimes sit outside this page and are not modelled here: the Beckham regime (a flat rate for qualifying inbound workers) and the foral regimes of País Vasco and Navarra, which run their own separate tax authorities and scales.

Frequently asked questions

Is the IRPF withholding the same as income tax?

It is an advance on it, not a separate tax. Each month the employer withholds a slice of your pay and hands it to the tax authority (AEAT) in your name. When you file the annual return (declaración de la renta) the total already withheld is set against what you actually owe, and the difference is refunded or paid. The withholding is only an on-account payment.

Why is the withholding a personalised rate rather than a fixed percentage?

Because it is built from your own circumstances. The employer estimates your annual pay, subtracts Social Security contributions, the fixed work-expense allowance and, where it applies, the earned-income reduction, then applies the national scale to that base and again to your personal and family minimum. The gap between the two is your withholding, expressed as a single rate carried to two decimals and applied to every payment.

Does the region I live in change my monthly withholding?

No. The monthly withholding runs on a single national scale (art. 85 RD 439/2007), so the same gross withholds the same in Madrid or in Cataluña. Each of the 17 autonomous communities sets its own scale, but that only applies to the annual declaración de la renta — it reconciles at year-end, never in the monthly payslip.

Are the bracket figures shown here official?

They are the rates in force for 2026, shown to illustrate the structure of the scale, and have not been through this site’s own review and sign-off. Treat the shape of the algorithm as the takeaway, not the exact edges.