From a monthly salary to an annual tax and monthly set-aside.
Annual salaries tax
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Monthly set-aside
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Monthly MPF
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There is no PAYE in Hong Kong, so the bill arrives later
If you have worked in a country with pay-as-you-earn withholding, the Hong Kong system feels strange at first. Your employer does not deduct salaries tax from each pay cheque. Instead the Inland Revenue Department issues an assessment after the year, and you settle it in instalments, typically one in January and a smaller balancing payment in April. The money is yours to hold all year, which is pleasant until the demand note lands and the cash is no longer there. This calculator converts your monthly salary into the annual tax you will eventually owe and, more usefully, into a monthly amount to set aside so the bill is funded when it comes.
The only thing your employer does withhold and remit is your MPF contribution, which is separate from tax. The tool shows that alongside, so you can see both the mandatory deduction that already leaves your pay and the tax that does not.
From a monthly figure to an annual assessment
The tool annualises your monthly salary, subtracts your annual deductions to reach net total income, then applies the full salaries tax computation: the lower of the progressive and standard methods, with the one-off Budget reduction taken off. Dividing that annual tax by twelve gives the monthly set-aside. The MPF figure is the employee's 5 percent mandatory contribution, the rate this calculator applies, capped once your monthly income reaches the relevant ceiling. Treat the bands, the allowance and the reduction as the tool's 2025/26 assumptions and confirm them with the IRD and the MPFA.
A $40,000-a-month salary, set aside monthly
Take a salary of $40,000 a month, with $18,000 of annual deductions, often the capped mandatory MPF, and the basic allowance of $132,000. The annualised path runs as follows, ending in the figures the calculator displays.
| Step | Amount |
|---|---|
| Annual salary ($40,000 x 12) | $480,000 |
| Less annual deductions | minus $18,000 |
| Net total income | $462,000 |
| Less basic allowance | minus $132,000 |
| Net chargeable income | $330,000 |
| Progressive tax (the lower method) | $38,100 |
| Less one-off reduction | minus $3,000 |
| Annual salaries tax | $35,100 |
| Monthly set-aside | about $2,925 |
| Monthly MPF (employee 5%, capped) | $1,500 |
Putting aside about $2,925 a month, roughly $35,100 over the year, means the January and April instalments are already covered. The standard-rate method would have charged $69,300 here, so the progressive method clearly wins, and the $3,000 reduction trims the final bill.
Watch the provisional tax, and who this suits
The biggest surprise for first-time taxpayers is not the tax itself but provisional tax. Hong Kong charges the coming year's tax in advance based on the year just gone, so your first real bill can be close to double a single year's tax, the prior year settled plus a provisional charge for the next. Setting aside a twelfth each month softens that, but in your first taxed year it is wise to build a larger buffer. If your income falls, you can apply to hold over the provisional tax, so do not assume the demand is fixed.
This tool is built for salaried employees, especially those new to Hong Kong or early in their careers who want the discipline of monthly saving against an annual bill. It does not model rental income, business profits or multiple income sources, which would change the picture. One genuine comfort: the figure you set aside is the whole tax story for most employees, since Hong Kong adds no separate tax on savings interest, dividends or capital gains on top.
When exactly do I pay Hong Kong salaries tax?
After the year of assessment ends, the IRD issues your assessment and you usually pay in two instalments, a larger one around January and a balancing payment around April. There is no monthly deduction, which is why setting aside about one twelfth of the annual tax each month keeps you ready for those dates.
Why might my first tax bill be larger than this annual figure?
Because of provisional tax. Hong Kong collects the next year's tax in advance alongside the current year's, so a first bill can approach two years of tax at once. After that the provisional payments you have already made are credited against each new assessment, so the shock is a one-time feature of your first taxed year.