How it’s calculated
1) Definitions
- Gross: salary before income tax.
- Net: salary after estimated income tax.
- The number of months per year is adjustable (default 12).
2) Assumptions
- This tool is for learning and quick “what‑if” estimates only.
- It does not include social security, pension, health insurance, or any country-specific deductions.
- The amount field is per month; annual values are calculated as amount × months per year.
- Numbers accept both “,” and “.” as decimal separators.
- All calculations run in your browser; we do not send your salary inputs to the server.
3) Formulas
- Flat tax:
net = gross × (1 − r)andgross ≈ net ÷ (1 − r). - Example progressive: annual tax = 13% up to the threshold + 15% on the rest (educational example only).
4) Sanity check
In flat‑rate mode, net pay is (1 − tax rate) times gross pay. You can try a small round number (for example 1,000) to see how much is removed by the chosen rate.
5) Disclaimer
This is not tax advice. Always use official payroll tools or consult a professional for actual salary calculations.
FAQ
What should I enter first?
Enter the amount as a monthly gross or net salary, choose the conversion direction, and confirm the number of months per year. Keep the tax-rate mode simple for a first estimate.
How precise are the results?
The calculator keeps internal precision and rounds only for display, but it is an educational estimator. Actual payroll can include social security, pension, health insurance, allowances, credits, and local rules that are not modeled here.
Why can my result differ from payroll software?
Payroll systems use jurisdiction-specific brackets, deductions, caps, exemptions, and rounding rules. Align the period, tax basis, and included deductions before comparing this educational estimate with an official result.
Can I use this output for official decisions?
No. Use this page for learning, rough planning, and quick checks only. For payroll, tax filing, employment, or legal decisions, use official guidance or a qualified professional.
Does this page send my inputs to a server?
Core calculations run in your browser. Some share links encode parameters in the URL so results can be reproduced, but no hidden upload is triggered unless you explicitly share that URL.
How to use Salary: Gross ↔ Net (Educational) effectively
What this calculator does
This page converts between monthly gross and net salary using simple flat or example progressive tax assumptions. It is designed to make the relationship between gross pay, tax rate, and net pay visible, not to reproduce a country's payroll law.
Input meaning and period policy
The amount field is monthly, while annual figures are derived from the selected months per year. Keep gross, net, tax rate, and months per year aligned across runs; period mismatch is the most common reason a salary estimate looks unexpectedly high or low.
Use-case sequence
Start with flat-rate mode and a round monthly salary to verify the basic relationship. Then switch the conversion direction or tax model if needed, documenting which deductions are intentionally excluded from the estimate.
Common mistakes to avoid
Avoid treating this as jurisdiction-specific payroll advice, mixing monthly and yearly amounts, or comparing it with payslip software that includes social insurance and tax credits. If the result will be used outside education, verify it with official tools.
Interpretation guidance
Read the output as a transparent approximation. Direction tells you whether the gross/net conversion is coherent; the exact amount depends on real-world deductions and statutory rounding that this simplified model does not include.