Tax Laws and Practice · Deductions

Limits and Restrictions on Deductions from Gross Total Income

Updated 11 October 2026 · Fact-checked

Under section 122 of the Income-tax Act, 2025, deductions in this Chapter come out of gross total income. Their total can never exceed gross total income, so total income cannot go below zero through these deductions. Part C deductions also need a return filed on time with the claim made in it.

Understand Limits, Restrictions and Procedure for Claiming Deductions

Start with the flow of computation. You add income under the heads and set off losses. The result is gross total income. Section 122(10) defines it as total income computed under the Act before making deductions under this Chapter. From it you subtract the Chapter deductions to reach total income, on which tax is charged.

Section 122(1) says deductions are allowed from gross total income as per and subject to the provisions of the Chapter. Section 122(2) sets the overall cap: the aggregate of deductions under the Chapter shall not in any case exceed gross total income. So you can claim many deductions, but together they can only bring total income down to nil. They cannot create a negative figure or a loss.

Part C deductions are the profit-linked and incentive deductions. These carry extra restrictions. Under section 122(5), no Part C deduction is allowed if the assessee fails to furnish a return on or before the due date under section 263(1), or fails to claim the deduction in that return. So procedure decides whether you get the benefit. Section 122(4) bars double benefit: profits claimed under Part C cannot be deducted again under any other provision for that tax year, and the deduction cannot exceed the profits of that undertaking, unit, enterprise or eligible business.

Section 122(6) and (7) deal with transfers between a eligible business and the assessee's other business. If the recorded price differs from market value, profits are computed as if the transfer was at market value. For a specified domestic transaction, market value means arm's length price. Section 122(9) says the income on which a deduction is computed is the income as computed under the Act before any Chapter deductions.

Do not confuse a deduction with a rebate. A deduction reduces income before tax is computed. A rebate under Part (section 155) reduces the tax itself, and under section 155(2) it cannot exceed the income-tax on the total income. Some co-operative societies and others opting for concessional rates (sections 203 and 204) must compute income without most Chapter deductions, which shows how the choice of tax regime restricts deductions.

Key rules to remember

Total income: Total income = Gross total income − Deductions under the Chapter; Section 122(1). Gross total income is computed before Chapter deductions (section 122(10)).
Aggregate cap: Total deductions ≤ Gross total income; Section 122(2). Deductions can reduce total income to nil but not below.
Part C return condition: Part C deduction allowed only if return is filed by the section 263(1) due date AND the deduction is claimed in that return; Section 122(5). Failing either limb denies the deduction.
No double deduction: Profits claimed under Part C: no other deduction on the same profits; deduction ≤ profits of the undertaking/unit/enterprise/eligible business; Section 122(4)(a) and (b).
Transfer at market value: If transfer price ≠ market value, profits are computed at market value on the date of transfer; Section 122(6). Market value is defined in section 122(7); arm's length price applies to specified domestic transactions.
Rebate cap: Rebate ≤ Income-tax on total income before the rebate; Section 155(2). A rebate reduces tax, not income.
Concessional rate societies: Co-operative society opting under section 203: rate 22%, income computed without Chapter VIII deductions (except those named) and without set-off of related brought-forward loss or depreciation; Section 203(1). Exceptions are sections 146 or 150, and section 149(2)(d)(ii) up to dividend distributed at least one month before the return due date, per section 203(7).

How to solve Limits, Restrictions and Procedure for Claiming Deductions questions

Use this order for any question on limits, restrictions or claim procedure.

1Compute gross total income first, after set-off of losses, and before any Chapter deduction.
2List each deduction claimed and note whether it is a Part C (profit-linked) deduction or another kind.
3For Part C deductions, check that the return was filed by the due date under section 263(1) and that the claim was made in it.
4Check for double benefit: the same profits cannot be claimed under another provision, and the deduction cannot exceed the profits of that unit or business.
5If goods or services moved between the eligible business and another business, recompute profits at market value (arm's length price for specified domestic transactions).
6Check whether the assessee opted for a concessional regime such as section 203 or 204, which restricts deductions.
7Add the allowed deductions and limit the total to gross total income. Subtract to get total income.
8Write the conclusion citing the section.

Quickest way: Four-check shortcut

When to use it: Use this when time is short and the question gives a list of deductions with a gross total income figure.

Write GTI. Write allowed deductions below it.
Tick return filed on time and claim made, for any Part C item.
Cross out any double claim or any amount above the unit's profits.
Total = lower of (sum of allowed deductions, GTI). Total income = GTI − total.

Common mistakes in Limits, Restrictions and Procedure for Claiming Deductions

Letting total deductions exceed gross total income and showing a negative total income.
Students add all deductions without testing the cap.
Fix: Always compare the sum of deductions with GTI and cap it, citing section 122(2).
Treating a Part C deduction as available even though the return was filed late.
Students assume deductions are automatic once the conditions of the section are met.
Fix: Check section 122(5): return by the section 263(1) due date and a claim in that return are both needed.
Computing GTI after deducting Chapter deductions.
The terms gross total income and total income get mixed up.
Fix: Remember section 122(10): GTI is before Chapter deductions.
Confusing deduction with rebate.
Both reduce the tax burden, so they look alike.
Fix: A deduction reduces income; a rebate reduces tax and cannot exceed the tax (section 155(2)).
Claiming the same profits under Part C and another provision.
Students treat each section as independent.
Fix: Apply section 122(4)(a): such profits cannot be deducted under any other provision for that year.
Ignoring market value when goods move between the eligible unit and another business.
Students use the book price given in the question.
Fix: Under section 122(6), recompute profits at market value if the recorded price does not correspond to it.

Worked examples

Example 1

Ramesh has gross total income of ₹4,00,000. His eligible deductions under the Chapter, all otherwise valid, are ₹3,10,000 and ₹1,50,000. Find his total income and state the effect of the cap.

Show the solution

Gross total income = ₹4,00,000.
Sum of deductions = ₹3,10,000 + ₹1,50,000 = ₹4,60,000.
Section 122(2): aggregate deductions cannot exceed gross total income.
Allowed deductions = ₹4,00,000 (the lower figure).
Total income = ₹4,00,000 − ₹4,00,000 = nil.

Answer: Total income is nil. Deductions of ₹60,000 are lost because of section 122(2); they cannot create a loss.

Example 2

Sunrise Industries Ltd has an eligible unit with profits of ₹20,00,000 and is otherwise entitled to a Part C deduction on those profits. It filed its return after the due date under section 263(1). Can it claim the deduction? Would your answer change if it filed on time but did not claim the deduction in the return?

Show the solution

Provision: section 122(5) denies a Part C deduction to an assessee who fails to furnish the return by the due date under section 263(1), or fails to claim the deduction in the return.
Facts: the return was filed after the due date.
Analysis: the first limb of the denial applies, so the condition is not met even though the unit's profits qualify.
Variation: if the return was on time but no claim was made, the second limb applies and the deduction is again denied.
Both conditions, a timely return and a claim in it, must be satisfied.

Answer: No. The company cannot claim the Part C deduction under section 122(5). The answer is the same if it filed on time but did not claim the deduction in that return.

Exam tips

Quote section 122(2) in any computation where deductions look larger than GTI.
For Part C deductions, always mention section 122(5) and section 263(1), because return conditions are a frequent short-note topic.
Draw a two-line contrast of deduction versus rebate; it scores easily in short notes.
Write the answer in ICSI style: provision, facts, then a clear conclusion.
For optional concessional regimes, state that the option must be exercised by the return due date and cannot be withdrawn once exercised (sections 203 and 204).

Practice questions from Deductions

Limits, Restrictions and Procedure for Claiming Deductions in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Limits, Restrictions and Procedure for Claiming Deductions: frequently asked questions

What is the maximum limit of deductions from gross total income?

There is no single rupee figure. Section 122(2) says total deductions under the Chapter cannot exceed gross total income. Each deduction may also have its own limit in its own section.

Are deductions allowed if I opt for a concessional regime?

Not generally. For example, a co-operative society opting under section 203 computes income without Chapter VIII deductions, except those the section names. Check the section for each regime before claiming.

How do I claim a deduction while filing the return?

File the return by the due date under section 263(1) and claim the deduction in that return. For Part C deductions, section 122(5) denies the benefit if you miss either step.

What is the difference between a deduction and a rebate?

A deduction is subtracted from gross total income to arrive at total income. A rebate is subtracted from the income-tax computed. Under section 155(2), the rebate cannot exceed that tax.

Can a deduction create a loss?

No. Because the aggregate cannot exceed gross total income, deductions under this Chapter can reduce total income to nil but not below.