Same rules as payroll
The tax comes from the function every Ploy HR payslip calls, over the same bands, so the calculator and payroll cannot drift apart.
Free tools
Free payroll tools for Cambodia.
Calculators for the two numbers every Cambodian payroll turns on: salary tax and NSSF. They run on the same rules as Ploy HR payroll, they show their working, and they need no sign-in.
Rules checked September 2026 · GDT rate 4,070 for October 2026
The calculators
Cambodia salary tax calculator
Salary tax and net pay from a monthly salary in USD or riel. Resident or non-resident, spouse, children and fringe benefits, with each step of the working.
Open the calculatorCambodia NSSF calculator
Pension, occupational risk and health care contributions, split between the employee and the employer, with the rates, the wage limits and the sources.
Open the calculator
How they work
Dated sources, plain working.
A calculator is only useful if you can see why it says what it says.
The latest GDT rate
USD salaries start at 4,070 riel per dollar, the rate for October 2026, published 14 October 2026. You can change it.
Estimates, not advice
Each page names its sources and when the rules were checked (September 2026). Confirm figures with the GDT, the NSSF or your accountant before you file.
Run payroll on these rules, every month.
Ploy HR works out salary tax and NSSF for every employee, shows the steps on each payslip, and waits for your approval before anyone is paid. Try it on your own payroll in a pilot.
Pilot workspaces are free. Nothing is billed yet.