How to use this calculator
- Enter desired net payment, combined flat deduction rate (%).
- Choose a display currency, then select Calculate. Results also update after a brief pause while you edit.
- Read the result with the assumptions below. Export details or save a second scenario to compare your choices.
Formula and method
Gross=net/(1−deduction rate).
Assumptions and limitations
Not progressive income tax or a jurisdiction payroll computation; no thresholds, caps or credits.
Worked example
With desired net payment = 800, combined flat deduction rate (%) = 20, required gross payment is approximately 1000.
What the result means
This solves a fixed-rate gross-up, useful for a simple payment scenario.
Common questions
How should I interpret required gross payment?
This solves a fixed-rate gross-up, useful for a simple payment scenario.
What should I check before using this result?
Not progressive income tax or a jurisdiction payroll computation; no thresholds, caps or credits.
Methodology and transparency
Calculation specification reviewed on 2026-10-14. Mathematical implementation is tested against independent reference fixtures. This does not imply review by a licensed financial professional. Read the testing and precision policy.