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Case law › Income-tax Act 2025 › Chapter IV › Section 31
Chapter IVwas s.36

Section 31 of the Income-tax Act, 2025

Section 31 — Deduction for bad debt and provision for bad and doubtful debt. Successor to s.36 of the 1961 Act.

Where this section sits

Section 31 is in Chapter IV — Computation of Total Income, which runs from section 13 to section 95.

← Section 30  ·  Section 32 →

What this section does

Sub-section (1) allows a deduction, in computing income chargeable under section 26, for a provision for bad and doubtful debts, but only to the assessees named in column B of the Table and only up to the amount in column C. Table entry 1 covers a scheduled bank other than one incorporated under the laws of a country outside India, a non-scheduled bank, and a co-operative bank other than a primary agricultural credit society or a primary co-operative agricultural and rural development bank; for them column C allows not more than 8.5% of the total income of the tax year computed before this deduction and before Chapter VIII, plus an additional amount up to 10% of the aggregate average advances made by rural branches computed in the prescribed manner, and, for a scheduled or non-scheduled bank only, at its option a further amount above that but not more than the income from redemption of securities under a scheme framed by the Central Government where that income has been disclosed in the return under the head "Profits and gains of business or profession". Table entry 2 covers a bank incorporated outside India, a public financial institution, a State Financial Corporation, a State Industrial Investment Corporation and a non-banking financial company, and allows not more than 5% of the total income of the tax year computed before this deduction and Chapter VIII.

Sub-section (2) deals with the bad debt itself: the amount written off as irrecoverable in the accounts is deductible in the year of write-off, subject to three conditions. Clause (a) requires that it was taken into account in computing income of that or an earlier tax year, or that it represents money lent in the ordinary course of a banking or money-lending business. Clause (b) allows the deficiency as a deduction in the year of ultimate recovery where the amount recovered falls short. Clause (c) applies where the assessee is one to whom sub-section (1) applies: only the amount exceeding the credit balance in the provision account is deductible; the deduction is allowed only where the bad debt has been debited to that provision account in that year; and there is to be only one such account, covering all types of advances including those of rural branches.

Sub-section (3) clarifies two points for sub-section (2): a write-off does not include a provision for bad and doubtful debt, and where an amount was taken into account in computing income under income computation and disclosure standards notified under section 276(2) without being recorded in the accounts, it is deductible in the year it becomes irrecoverable and is deemed to have been written off in the accounts.

Why it is there

Lending institutions cannot know in advance which advances will fail, so the section lets a defined class of them deduct a provision within a ceiling instead of waiting for each write-off. The ceilings and the single-account rule keep that concession bounded and prevent the same loss being deducted twice — once as provision and again as write-off. Sub-section (3)(b) closes the gap that would otherwise open where an accounting standard requires an amount to be recognised in income without an entry in the books.

Who it applies to

The figures, and what each one turns on

Read the condition in the same row. A figure quoted without it is a wrong answer with a citation attached.
WhatFigureThe condition on itWhere
Provision deduction for a scheduled bank, non-scheduled bank or co-operative bankNot more than 8.5% of total incomeTotal income of the tax year computed before any deduction under this clause and before Chapter VIIISub-section (1), Table Sl. No. 1, column C(a)
Additional provision deduction for rural branchesUp to 10% of the aggregate average advances made by rural branchesComputed in the manner as may be prescribed; available to the same assessees as the 8.5% limb and in addition to itSub-section (1), Table Sl. No. 1, column C(a)
Optional further provision deductionNot more than the income from redemption of securitiesAvailable only to a scheduled bank or a non-scheduled bank, at its option, for income arising under a scheme framed by the Central Government and disclosed in the return under the head "Profits and gains of business or profession"Sub-section (1), Table Sl. No. 1, column C(b)
Provision deduction for a foreign bank, public financial institution, State Financial Corporation, State Industrial Investment Corporation or non-banking financial companyNot more than 5% of total incomeTotal income of the tax year computed before any deduction under this clause and before Chapter VIIISub-section (1), Table Sl. No. 2, column C

What this means in practice

The percentages are ceilings, not entitlements: column C says "not more than", so a claim has to be the lower of the provision actually made and the limit. The base is a moving one — total income computed before this deduction and before Chapter VIII — so the 8.5% and 5% figures cannot be applied to the assessed total income as finally computed. For an assessee inside sub-section (1), a write-off is not a free-standing deduction: sub-section (2)(c) allows only the amount exceeding the credit balance in the provision account, and only where the debt has been debited to that account in the same year, and there can be only one such account covering all advances including rural ones. The rural addition is measured on aggregate average advances made by rural branches, computed in the prescribed manner, not on the year's total advances, and the optional third limb in entry 1 is confined to scheduled and non-scheduled banks — a co-operative bank cannot use it.

An example

Illustrative only, and invented for this page. The figures are chosen to show the rule biting, not taken from any real matter.

A scheduled bank has total income for the year of Rs. 500 crore computed before this deduction and before Chapter VIII, and aggregate average advances of rural branches of Rs. 200 crore. Its ceiling is Rs. 42.5 crore under the 8.5% limb plus up to Rs. 20 crore under the 10% rural limb — Rs. 62.5 crore in all, and only if it has actually made a provision of that size. If in the same year it writes off Rs. 70 crore of bad debts and the credit balance in its single provision account stands at Rs. 62.5 crore, only Rs. 7.5 crore of the write-off is deductible under sub-section (2)(c)(i), and even that only if the debts were debited to that account during the year.

Where you meet this section

This is worked in a lender's profits and gains computation, and it surfaces in scrutiny as a restriction of the provision to the Table ceiling, or as a disallowance of a write-off that did not pass through the single provision account required by sub-section (2)(c)(iii).

The words themselves

not more than 8.5% of the total income of the tax year computed before making any deduction under this clause and Chapter VIII, and an additional amount up to 10% of the aggregate average advances made by rural branches computed in the manner as may be prescribed
Section 31(1), Table Sl. No. 1, column C(a), Income-tax Act, 2025.
Not more than 5% of the total income of a tax year computed before making any deduction under this clause and Chapter VIII.
Section 31(1), Table Sl. No. 2, column C, Income-tax Act, 2025.
only that amount which exceeds the credit balance in the provision for bad and doubtful debts account made under that sub-section shall be allowed as deduction
Section 31(2)(c)(i), Income-tax Act, 2025.

What people get wrong

What this replaced

The correspondence is the Income Tax Department’s own, from its comparison utility for the 1961 and 2025 Acts. A renumbering is the easy half; whether the words changed is the half that decides cases.

See the full 1961 to 2025 concordance.

Rules that serve this section

Rules of the Income-tax Rules, 2026 that work section 31. Where the rule’s own heading names the section we say so; the rest are marked on reading the rule, which is our derivation and not the department’s. A rule that serves the section silently and that we have missed will not appear here.

All of them are in the Rules 2026 index.

Circulars of the Board on this section

A circular binds the department, not you and not a court. Every one below was written under the 1961 Act; it reaches this section because the department’s own concordance carries the provision it names to this one.

See every circular and notification on this section, or the circulars index.

Notifications that reach this section

A notification is made under a power the Act gives and, within that power, is law. These too were made under the 1961 Act and are placed here by the department’s concordance.

See every circular and notification on this section, or the notifications index.

Case law carried across

Read this before you rely on it. Every decision below was decided under the Income-tax Act, 1961. It appears here because it is tagged to a 1961 provision that the department’s own mapping carries to section 31. That is an inference we have drawn, not a holding on the new section: where the words changed in the move, the reasoning may not survive. Treat this as the place to start looking, not as authority on the 2025 Act.

Explainers

Read with

What this page does not tell you. It does not reproduce the section. Everything above was written from the section’s own text as the Income Tax Department publishes it — the text is here, and nothing here is advice on your facts. Where a figure matters, read the sub-section it comes from.