Chapter IV - Computation of Total Income
Section 31
Section 31: deduction for bad debt and provision for bad and doubtful debt
Section 31 deals with two related but distinct deductions while computing income from business or profession: a special provision-based deduction available only to specified banks and financial institutions, and a general bad-debt write-off deduction available to any assessee once a debt actually becomes irrecoverable.
On this page
Need advice on Section 31?
This article is for general information. Refer to the Income-tax Act, 2025 as amended by the Finance Act, 2026 and the Taxation and Other Laws (Amendment) Act, 2026 for the official provisions. If you need professional advice for your situation, contact Bizeneed.
Statutory text
Bare law
(1) The amount mentioned in column C of the Table below, in respect of any provision for bad and doubtful debts made by the assessee specified in column B thereof, shall be allowed as a deduction in computation of income chargeable under section 26.
| Sl. No. | Specified assessee | Amount of deduction |
|---|---|---|
| 1 | (a) A scheduled bank, other than a bank incorporated by or under the laws of a country outside India; or (b) a non-scheduled bank; or (c) a co-operative bank, other than— (i) a primary agricultural credit society; or (ii) a primary co-operative agricultural and rural development bank. | (a) 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; (b) for an assessee mentioned in clauses (a) and (b) of column B, at its option, an additional amount in excess of clause (a) of this column but not more than the income from redemption of securities as per a scheme framed by the Central Government, when such income has been disclosed in the return of income under the head “Profits and gains of business or profession”. |
| 2 | (a) A bank incorporated by or under the laws of a country outside India; or (b) a public financial institution or a State Financial Corporation or a State Industrial Investment Corporation; or (c) a non-banking financial company. | Not more than 5% of the total income of a tax year computed before making any deduction under this clause and Chapter VIII. |
(2) Any amount of bad debt, or part of it, in the tax year in which such amount is written off as irrecoverable in the accounts of the assessee, shall be allowed as deduction in computation of income chargeable under section 26, subject to the following conditions:— (a) it has been taken into account in computing the income of the assessee of the tax year in which it is written off, or any earlier tax year, or represents the money lent in the ordinary course of the business of banking or money lending which is carried on by the assessee; (b) if the amount ultimately recovered on any such debt or part of debt is less than the difference between the debt or part and the amount so deducted, the deficiency shall be deductible in the tax year in which the ultimate recovery is made; and (c) where it relates to an assessee to which sub-section (1) applies,— (i) 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; (ii) such amount shall be allowed only when the assessee has debited any amount of bad debt or part thereof in that tax year to the provision for bad and doubtful debts account made under that sub-section; and (iii) the aforesaid account shall be only one such account under sub-section (1) and such account shall be related to all types of advances, including advances made by rural branches. (3) For the purposes of sub-section (2),— (a) any bad debt or part of it written off as irrecoverable shall not include any provision for bad and doubtful debt; (b) any amount of bad debt or part of it, which has been taken into account in computing the income of the assessee of the tax year in which the amount of bad debt or part of it becomes irrecoverable or of an earlier tax year as per income computation and disclosure standards notified under section 276(2) without recording it in the accounts, shall be allowed as a deduction in computing the income of the assessee of the tax year in which it becomes irrecoverable and such bad debt or part of it shall be deemed to be written off as irrecoverable in the accounts for the purposes of sub-section (2).
Introduction
The section has two different routes: a limited provision deduction for specified lenders and a deduction for a debt actually written off. The eligibility and anti-duplication rules must be applied to the chosen route.
Key takeaways
Bad debt written off
A debt actually written off as irrecoverable in the accounts may be deducted, subject to the section's conditions for a debt previously included in income or advanced in a money-lending business.
Banking provision
Specified banks and financial institutions have a separate deduction for provision for bad and doubtful debts, within the statutory limits; the same debt cannot be deducted twice.
Provision for bad and doubtful debts (Section 31(1))
Section 31(1) allows a deduction, computed as per a Table in the section, for a provision for bad and doubtful debts made by specified categories of assessees - essentially banks, co-operative banks and certain financial institutions.
For a scheduled bank (other than one incorporated outside India), a non-scheduled bank, or most co-operative banks, the deduction is not more than 8.5% of the total income of the tax year (computed before this deduction and before Chapter VIII deductions), plus an additional amount of up to 10% of the aggregate average advances made by rural branches, computed in the prescribed manner.
For a bank incorporated outside India, a public financial institution, a State Financial Corporation, a State Industrial Investment Corporation, or a non-banking financial company, the deduction is not more than 5% of the total income of the tax year (computed before this deduction and before Chapter VIII deductions).
Bad debts actually written off (Section 31(2))
Separately, Section 31(2) allows any amount of bad debt (or part of it) as a deduction in the tax year in which it is written off as irrecoverable in the assessee's accounts, subject to conditions:
- The debt must have been taken into account in computing the assessee's income of that tax year or an earlier tax year, or must represent money lent in the ordinary course of a banking or money-lending business carried on by the assessee.
- If the amount ultimately recovered on the debt is less than the difference between the debt and the amount already deducted, that further deficiency is deductible in the year the ultimate recovery is made.
- For assessees who also claim the Section 31(1) provision deduction, only the amount of written-off bad debt that exceeds the credit balance in the provision account is allowed as a deduction, and it is allowed only when the assessee has actually debited the bad debt to that provision account; only one such provision account is recognised, covering all types of advances including those by rural branches.
Clarifications under Section 31(3)
A provision for bad and doubtful debts is not itself treated as a bad debt "written off" for the purposes of Section 31(2).
Where a bad debt (or part of it) has already been taken into account in computing income for the year it became irrecoverable (or an earlier year) as per the applicable income computation and disclosure standards, without formally recording it in the accounts, it is still allowed as a deduction in the year it becomes irrecoverable, and is deemed to have been written off in the accounts for Section 31(2) purposes.
Step-by-step flow for applying Section 31
- 1
Is the claim for a provision or for an actual write-off?
- Provision: Only the assessees listed in the Table in Section 31(1) (banks, co-operative banks and specified financial institutions and NBFCs) can claim, within the percentage limits in the Table.
- Write-off: Go to the next step.
- 2
Was the debt taken into account in income of this or an earlier year, or is it money lent in the ordinary course of banking or money-lending?
- No: Not deductible under Section 31(2).
- Yes: Go to the next step.
- 3
Has it been written off as irrecoverable in the accounts?
A mere provision is not a write-off (Section 31(3)). A debt already taken into account under the applicable ICDS in the year it became irrecoverable is deemed written off.
- No: Not yet deductible.
- Yes: Deductible in the year of write-off.
- 4
Does the assessee also claim the Section 31(1) provision?
Then only the write-off exceeding the credit balance in the provision account is allowed, and only if debited to that account.
- 5
Later recovery?
Any recovery above the unallowed part is taxed under Section 38(1)(d).
Practical checklist
Do
- For a write-off, preserve the debtor ledger, accounting entry and evidence that the statutory prior-income or money-lending condition is met.
- For a banking provision, identify the exact lender category and compute its table limit separately.
Avoid
- Do not deduct the same bad debt both as a provision and as a full write-off without applying the adjustment rule.
- Do not claim a mere provision under the write-off limb.
Illustrative example
Worked example: a trader's irrecoverable customer dues
Hypothetical facts (illustration only, not a real taxpayer): A distributor sold goods for ₹3 lakh to a customer two years ago and included the sale in income that year. The customer has become insolvent, and this year the distributor writes off ₹3 lakh in its books.
Taken into income
The sale was included in income of an earlier tax year, so the first condition of Section 31(2) is met.
Write-off
The amount is actually written off as irrecoverable in the accounts this year.
Provision rule
The distributor is not a bank or specified institution, so the Section 31(1) provision rules do not affect the claim.
Outcome
- ₹3 lakh is deductible this year.
- If ₹1 lakh is recovered later, it is taxed under Section 38(1)(d) in the year of recovery.
Glossary
- Bad debt
- A debt written off as irrecoverable under the conditions in Section 31(2).
- Provision for bad and doubtful debt
- A recorded allowance against expected debt loss for specified lenders under the table in Section 31(1).
Frequently asked questions
Who can claim the provision for bad and doubtful debts under Section 31(1)?
Only the specified categories listed in the section's Table - scheduled and non-scheduled banks, most co-operative banks, banks incorporated outside India, public financial institutions, State Financial Corporations, State Industrial Investment Corporations, and non-banking financial companies. It is not a general deduction available to every business.
Can any business claim a deduction when a debt actually goes bad?
Yes. Section 31(2) allows any assessee a deduction for a bad debt (or part of it) once it is actually written off as irrecoverable in the accounts, provided it was earlier included in computing income, or represents money lent in the ordinary course of a banking or money-lending business.
What is the deduction limit for a scheduled bank under Section 31(1)?
Not more than 8.5% of the total income of the tax year (computed before this deduction and before Chapter VIII deductions), plus an additional amount of up to 10% of the aggregate average advances made by its rural branches, computed in the prescribed manner.
Need help applying this provision to your situation?
Get your bad debt provisions reviewed by our tax audit teamLast updated 10 October 2026