How mandatory MPF cuts your salaries tax, capped at HK$18,000 a year.
Tax saving
—
Deductible amount
—
Above the cap
—
Your breakdown
Updates live as you type| Step | Amount |
|---|
The deduction is real, but it is capped
Your mandatory MPF contributions are deductible from salaries tax, which softens a cost you have no choice about paying. The catch is the ceiling. The cap this calculator applies is $18,000 a year, and that is not a coincidence: it is exactly 5 percent of the $30,000 monthly relevant income ceiling, multiplied by twelve. In other words, if your salary is at or above the MPF contribution ceiling, your own mandatory contributions for the year hit precisely the deduction cap, and there is no spare deduction left over. Anything above $18,000, which only arises from voluntary top-ups, is not deductible under this particular relief.
It helps to picture where this sits in the wider system. Hong Kong levies salaries tax on a progressive scale, charging successive bands of net chargeable income at rising rates up to a top marginal rate, and offers a basic allowance plus dependant allowances along the way. The MPF deduction is one of the deductions that reduce your income before those rates apply. Treat the specific cap and rates here as the figures modelled, set in the annual Budget, and confirm them with the Inland Revenue Department and the MPFA.
Why your marginal rate is the whole story
A deduction does not hand you cash. It removes income from the top of your tax calculation, so what you save is the deducted amount multiplied by the rate that would otherwise apply to that slice. That rate is your marginal rate, the band your last dollar of income falls into. The same $18,000 deduction is worth far more to a high earner sitting at the top marginal band than to someone whose income only reaches the lowest 2 percent band. This is why the tool asks for your band rather than your salary: the band is what sizes the saving.
Full deduction at the top band
Suppose you contributed the full $18,000 in mandatory MPF over the year and your income puts your marginal slice at the 17 percent band, which the calculator treats as the top progressive rate. The entire $18,000 is deductible because it does not exceed the cap, and the tax you save is $18,000 multiplied by 17 percent, which is $3,060. Nothing sits above the cap, so there is no wasted contribution.
A common mistake worth avoiding
People often assume that paying extra into MPF buys extra tax relief. Under this deduction it does not, because the $18,000 ceiling is fixed regardless of how much you put in. If you want a further deductible retirement contribution, the route is MPF tax-deductible voluntary contributions or a qualifying deferred annuity, which share a separate and larger cap. A second point: only mandatory contributions count here, and only your share. The employer's matching 5 percent is not your deduction. The good news at the other end is that whatever you accumulate comes out tax-free at retirement, because Hong Kong does not tax the MPF withdrawal.
It is worth checking the band you select against your actual income rather than guessing. Your marginal band is set by your net chargeable income, the figure after deductions and allowances, not by your gross salary, so a comfortable earner with large family allowances can sit a band or two lower than they assume. If you are unsure, work out your net chargeable income first, then pick the band its top slice falls into, and the saving the tool shows will reflect your real position rather than an optimistic one.
If I switch jobs mid-year, can I claim more than $18,000?
No. The cap is annual and per person, not per employer. Mandatory contributions from two jobs in the same year are added together and the deduction is still limited to $18,000 in total. The figure modelled is the per-taxpayer ceiling, which you should confirm with the IRD.
Does the deduction reduce my MPF contribution itself?
No. The contribution leaves your salary in full. The deduction simply lowers the income on which salaries tax is charged, so you recover part of the cost later through a smaller tax bill, sized by your marginal rate.