The 9% surcharge on tax when income tops 10 million.
Surcharge
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Tax before surcharge
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Total with surcharge
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A tax on your tax, not on your income
The high-income surcharge is one of the more misunderstood lines on a Pakistani return because of where it lands. It is charged on the income tax you already owe, not on your income. Under Section 4AB of the Income Tax Ordinance, once an individual or an association of persons has taxable income above the threshold, a flat percentage is added to the income tax payable. The Finance Act 2025 trimmed this rate, and the figure this calculator applies is 9 percent. So the surcharge is a multiplier on your slab liability, which means anything that raises your tax, a bonus, a second income stream, also raises the surcharge in proportion.
This tool is for salaried professionals and business owners whose income has pushed past the high-earner line and who want to see the surcharge separately from their base tax. You enter your annual taxable income and pick whether you are taxed on the salaried card or the business and AOP card, and it returns the surcharge, your tax before it, and the combined total. The Federal Board of Revenue (FBR) is the authority that sets both the rate and the threshold, and both can shift with each budget, so read the outputs as the modelled position for the year.
The PKR 10 million line that switches it on
There is a clean cliff here. Below the threshold the surcharge is zero. The threshold this calculator uses is PKR 10 million of taxable income, and only once you are above it does the 9 percent apply. Because the charge is a percentage of your tax rather than your income, the rupee amount depends on how heavy your slab bill already is. A salaried person and a business owner with the same income owe different surcharges, because the business and AOP slab card is steeper and produces more base tax to multiply.
One subtlety people miss: the trigger is taxable income crossing PKR 10 million, but the surcharge is then computed on the whole tax bill, not just the tax attributable to income above PKR 10 million. There is no taper or marginal relief built into this charge as the calculator models it, so the moment you cross the line the full 9 percent attaches to your entire tax. That makes the threshold worth watching if your income lands near it.
A salaried earner on PKR 12 million
Take the default, a salaried person with PKR 12 million of taxable income. Running that through the salaried slab card the calculator uses produces a base income tax of PKR 3,381,000. Because PKR 12 million is above the PKR 10 million threshold, the surcharge applies: 9 percent of PKR 3,381,000 is PKR 304,290. Add it to the base and the total tax becomes PKR 3,685,290.
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The result box reports the surcharge as "Rs 304,290" and the total as "Rs 3,685,290". The chart sets the surcharge against the base tax so you can see it is a thin extra layer rather than a doubling.
The chart below shows how the surcharge sits on top of the base income tax.
The edge case worth planning around
Because there is no marginal relief here, the surcharge can punish income that nudges you just over PKR 10 million. If a year-end bonus lifts your taxable income from PKR 9.9 million to PKR 10.1 million, you do not pay 9 percent only on the extra slice, you pay 9 percent on your whole tax bill. The practical move is to check, before accepting discretionary income late in the year, whether it crosses the line, and if it does, whether deferring it or routing it through an allowable retirement contribution keeps you under. Run both scenarios in the tool and compare the totals. As always, the 9 percent rate and the PKR 10 million threshold are the figures modelled here, and you should confirm the current year's settings with the FBR, since the Finance Act revisits both.
Why does a business owner pay more surcharge than a salaried earner on the same income?
Because the surcharge is a slice of your tax, and the business and AOP slab card is heavier than the salaried card. The same PKR 12 million produces a larger base tax under the business card, so 9 percent of that larger number is a larger surcharge. Switch the income type in the tool to see the gap for your own figure.
Does the surcharge apply to companies?
No. The Section 4AB surcharge as modelled here is aimed at individuals and associations of persons. Companies sit outside it, although large companies face a separate charge, the Section 4C super tax, which is a different mechanism with its own bands. Keep the two apart when you plan.