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MasterMath

Payslip Calculator

Your payslip broken down: from gross annual pay to what is left each payday, with the social contribution and the tax withheld kept separate.

Currency and number format for

You keep each payday

—

You keep each payday—
Gross for the instalment—
Social contribution a year—
Tax withheld a year—
Net for the year—
Deducted—

How this was worked out

    The formula

    net = gross − social contribution − tax withheld − other deductions

    Where it comes from

    A payslip subtracts two very different things from the gross. The social contribution is a fixed percentage funding pensions and unemployment cover; the withholding is an advance on income tax, settled when you file. That is why a high withholding is not money lost, while a high contribution genuinely is a cost.

    How to work it out by hand

    1. Start from the gross annual salary
    2. Work out the social contribution as a percentage of the gross
    3. Work out the tax withheld on that same gross
    4. Subtract both and split the result across your instalments

    What is worth knowing

    The percentages are fields and not constants because they change from country to country, and within a country they change with the income band, the type of contract and family circumstances. Copy them from your last payslip: yours are there exactly, and with them the simulation is precise. The difference between withholding and contribution matters when negotiating: if a rise pushes the withholding up more, you are not earning less, that excess comes back when you file.

    Frequently asked questions

    Where do I get my percentages?

    From your last payslip. Divide each deduction by the gross on that slip and multiply by a hundred. Those are your real ones, with your band and your circumstances.

    Why does my withholding change halfway through the year?

    Because it is recalculated when your expected annual income changes: a rise, a variable payment or a change at home. It is all squared up when you file.

    Do I get the social contribution back?

    Not as money, but it buys entitlements: unemployment cover, sick pay and a pension. The withholding is the part that is an advance and gets settled.

    Will it give me an exact net salary?

    It gives the exact net for the percentages you enter. Working out the withholding from scratch needs your country's official tables, which change every year.