Section 155: the general rule for income-tax rebates

Introduction

Section 155 is the gateway for the individual rebate computed under Section 156. It directs the reduction from income tax, after the initial tax calculation, and caps the rebate at the pre-rebate income tax payable.

Key takeaways

How the rebate is applied

In computing income-tax on the total income of an assessee chargeable for any tax year, a deduction is allowed from income-tax (as computed before allowing the deductions under this Part), subject to section 156, of the deductions specified in that section.

The rebate cannot exceed the tax payable

The deduction under section 156 cannot, in any case, exceed the income-tax (as computed before allowing the deductions under this Part) on the total income of the assessee chargeable for that tax year.

Practical scope

The rebate operates on income-tax already computed, rather than reducing total income. Establish eligibility and the deduction under Section 156 first, and apply Section 155’s ceiling to that otherwise available deduction.

Keep the computation stages visible: total income, tax before this Part’s deductions, the Section 156 entitlement and the permitted reduction. This prevents a rebate from being entered as an income deduction.

Limits and separate checks

Section 155 does not give every assessee a rebate, remove Section 156’s eligibility conditions or provide a universal rebate amount. The appropriate Section 156 branch must be established.

The ceiling prevents the rebate deduction from exceeding the pre-deduction income-tax amount identified in the section. It does not itself determine whether taxes already paid generate a refund under the separate refund and credit provisions.

Step-by-step computation review

1. Compute the income-tax on total income before deductions under this Part.

2. Determine the applicable Section 156 eligibility conditions and amount.

3. Limit the deduction to the income-tax ceiling in Section 155(2).

4. Reconcile the tax after rebate with other applicable adjustments and payment credits under their own provisions.

Hypothetical example

Hypothetical illustration: assume the relevant pre-rebate income-tax is ₹8,000 and the taxpayer otherwise qualifies for a Section 156 deduction calculated at ₹8,000. Section 155 permits reduction of the tax by that amount; it is not an ₹8,000 deduction from total income. The figures assume eligibility and illustrate the computation stage, not a rebate threshold.

Records and checklist

The total-income and pre-rebate tax computation.

The Section 156 branch and evidence supporting eligibility.

The rebate working and separate tax-credit or refund reconciliation.

Official amended Act source

• Income-tax Act, 2025 as amended by Finance Act, 2026: Section 155

Step-by-step flow for applying Section 155

1. 1

   Compute total income for the tax year

2. 2

   Compute income-tax on that total income before the deductions under this Part

3. 3

   Is the assessee entitled to a deduction under Section 156?

   • No: No rebate; Section 155 grants none by itself.
   • Yes: Work out the Section 156 amount.
4. 4

   Does the Section 156 amount exceed the pre-deduction income-tax?

   • Yes: Restrict it to that income-tax under Section 155(2).
   • No: Allow it in full.
5. 5

   Deduct the rebate from income-tax, not from total income

Practical checklist

Glossary

Rebate

A reduction from computed tax rather than from taxable income.

Pre-rebate tax

Income tax calculated before applying the Chapter IX rebate.

Frequently asked questions