Can Alternative Corporate Tax paid over normal tax be carried forward, and for how long?

A company that pays Alternative Corporate Tax (ACT) because it is higher than its normal tax does not lose the difference. Section 113C of the Income Tax Ordinance, 2001 turns the excess into an amount that can be set against future corporate tax. The window is much longer than for minimum tax: up to ten tax years.

What does the law say?

Section 113C(1) makes a company’s tax the higher of corporate tax and ACT. Corporate tax, under section 113C(2)(c), is itself the higher of Division II tax and minimum tax. When ACT wins, sub-sections (4) to (6) deal with the difference.

• Sub-section (4). “The excess of Alternative Corporate Tax paid over the Corporate Tax payable for the tax year shall be carried forward and adjusted against the tax payable under Division II of Part I of the First Schedule, for following year.”
• Sub-section (5). If the excess is not wholly adjusted, the balance is carried forward to the following tax year and adjusted in the same way, “and so on”, but it “cannot be carried forward to more than ten tax years immediately succeeding the tax year for which the excess was first computed”.
• Explanation to sub-section (5). The ACT mechanism “shall not prejudice or affect the entitlement of the taxpayer regarding carrying forward and adjustment of minimum tax referred to in section 113”.
• Sub-section (6). If corporate tax or ACT is enhanced or reduced by an amendment or by any order under the Ordinance, the excess to be carried forward is reduced or enhanced accordingly.

How is it different from the minimum tax carry forward?

	ACT excess, section 113C	Minimum tax excess, section 113
What is carried forward	ACT paid over corporate tax	Minimum tax paid over tax at normal rates (the whole amount in a nil-tax year)
Adjusted against	Tax under Division II of Part I of the First Schedule	Tax under clause (1) of Division I or Division II of Part I of the First Schedule
Period	Up to ten tax years after the year first computed	Two tax years immediately after the year of payment
Effect of amendments	Sub-section (6) adjusts the amount	Not addressed in the same words

Because the Explanation keeps the two separate, a company can carry both kinds of amount at the same time, each with its own period. Section 113C does not set an order in which the two are used when both are available in the same year, and this page does not supply one.

Worked example (illustrative figures)

Indus Foods Ltd in Faisalabad is a resident company taxed at 29% under Division II for tax year 2027. All amounts are invented.

Tax year 2027

1. ACT: Rs. 15,300,000.
2. Division II tax: Rs. 11,600,000. Minimum tax: Rs. 7,500,000. Corporate tax, the higher of these two: Rs. 11,600,000.
3. Tax payable, the higher of corporate tax and ACT: Rs. 15,300,000.
4. Excess carried forward under sub-section (4): Rs. 15,300,000 - Rs. 11,600,000 = Rs. 3,700,000.

Tax year 2028

1. Division II tax: Rs. 14,000,000. Minimum tax: Rs. 8,000,000. ACT: Rs. 10,200,000.
2. Corporate tax is Rs. 14,000,000, which is higher than ACT, so the company’s tax before adjustment is Rs. 14,000,000.
3. Adjust the carried forward excess against Division II tax: Rs. 14,000,000 - Rs. 3,700,000 = Rs. 10,300,000.
4. The Rs. 3,700,000 is fully used in the first year after it arose, well inside the ten-year limit.

If the tax year 2027 assessment is later amended

1. Suppose an amended assessment raises tax year 2027 Division II tax to Rs. 12,600,000, while ACT stays at Rs. 15,300,000.
2. The excess becomes Rs. 15,300,000 - Rs. 12,600,000 = Rs. 2,700,000.
3. Sub-section (6) reduces the amount to be carried forward to Rs. 2,700,000. If Rs. 3,700,000 had already been adjusted in tax year 2028, the section does not itself say how the difference is recovered.

What if …?

What if the following year’s Division II tax is small? Only part of the excess can be adjusted that year. Sub-section (5) carries the balance to the next year, and so on up to the ten-year limit.

What if the company pays ACT again the next year? Section 113C does not say whether an earlier excess can be adjusted in a year when ACT is again the higher figure, or whether an adjustment can take the year’s tax below that year’s ACT or minimum tax. The section is silent, and this page does not resolve it.

What if the company pays minimum tax in the later year? The excess is adjusted against Division II tax only. Sub-section (4) does not mention minimum tax as a tax against which it can be set.

Common mistakes

• Using the minimum tax period. ACT excess runs for up to ten tax years under section 113C(5), not the two years in section 113.
• Merging the two balances. The Explanation keeps ACT and minimum tax carry forwards separate.
• Ignoring amended assessments. Sub-section (6) changes the carried forward amount when either tax is enhanced or reduced.
• Counting from the wrong year. The ten years run from the year the excess was “first computed”.

What to check in the official text

Read section 113C(1), (2)(c) and (4) to (6), including the Explanation to sub-section (5), and compare them with section 113(2)(c) and its provisos. Keep a schedule of each year’s excess, the year it was first computed, and any change made by an amended assessment or order.