Net Monthly Salary Calculator
Calculate how much you will take home each month, including the effect of extra payments, from your annual gross salary.
Results
Net pay in a normal month
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Net pay in a month with an extra payment
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Total annual net
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Annual Social Security contribution
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Annual income tax withholding
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Effective income tax rate
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Annual net salary is calculated by subtracting the Social Security contribution (6.35%) and income tax withholding by bracket from the gross salary. With 14 payments, the annual net is split into 14 equal parts, and June and December pay double (normal payment + extra payment). With 12 payments, the extras are prorated across every month.
When should you use this calculator?
This calculator estimates how much you will actually take home each month, unlike other income tax calculators that only show the annual withholding. Here you will see the difference between a normal month and a month with an extra payment, depending on whether you receive 12 or 14 payments a year.
Legal context in Spain
In Spain, the annual salary can be paid in 12 or 14 instalments. With 14 payments, in addition to the 12 ordinary monthly payments, two extra payments are received, usually in June (summer bonus) and December (Christmas bonus), although the collective agreement may set other dates. With 12 payments, the amount of those two extra payments is spread (prorated) across the 12 months of the year.
Net monthly salary is not simply the annual gross divided by 12, because you must subtract the employee's Social Security contribution (6.35%) and income tax withholding, which depends on total salary, autonomous community and family situation. Also, if you receive 14 payments, in the extra-payment months your net income will be double that of a normal month.
Prorating extra payments means dividing the amount of the two extra payments across the 12 monthly payments of the year, so that each monthly payslip includes a proportional part of those payments, instead of receiving them all at once in June and December.
Frequently asked questions
What is the difference between 12 and 14 payments?
With 14 payments you receive 12 ordinary monthly payments plus 2 extra payments (usually in June and December), so you earn double in those months. With 12 payments, the amount of those 2 extra payments is spread (prorated) across the 12 months, so you earn a bit more each month but without spikes in summer and Christmas.
When are extra payments received?
Usually in June (summer bonus) and December (Christmas bonus), although each sector's or company's collective agreement may set different dates.
Why isn't the net monthly salary simply gross divided by 12?
Because you must subtract the employee's Social Security contribution (6.35% of gross) and income tax withholding, which varies depending on total salary, autonomous community of residence and family situation (children, disability, joint filing).
What does prorating extra payments mean?
It means spreading the amount of the 2 extra payments across the 12 monthly payments of the year, instead of receiving them in full in the months they correspond to. This way the employee earns a more uniform amount each month.