ICDS Applicability explained: this guide covers what it means, who it applies to, the step-by-step process, documents required, fees, due dates and penalties in India — so you can stay compliant with confidence and avoid costly mistakes.
ICDS applicability is narrower than it first appears: mercantile-system assessees only, for computing business or other-sources income only, never for maintaining books — and not for section 115JB book profit, though it does reach AMT under section 115JC.
From the ICAI Guidance Note on Tax Audit (Revised 2026), the concluding edition under the Income-tax Act, 1961. The ICDS are notified under section 145(2) of that Act; for tax years governed by the Income-tax Act, 2025, the standards notified under the corresponding provision must be applied, and the audit report becomes Form No. 26 under rule 47 of the Income-tax Rules, 2026.
The ICDS applicability rules
Paragraph 25.8: in exercise of the powers in section 145(2), the Central Government has notified the ICDS to be followed by all assessees following the mercantile system of accounting, for computing income chargeable under "Profits and gains of business or profession" or "Income from other sources".
Paragraph 25.9 then sets the boundaries, and this list is the practical statement of ICDS applicability:
| Question | Answer |
|---|---|
| Cash method assessees? | ICDS does not apply |
| Maintenance of books of account? | Not applicable — each ICDS says so in its preamble, and this holds even under the mercantile system |
| Book profit under section 115JB (MAT)? | Does not apply, because ICDS applies to computation under the regular provisions |
| AMT under section 115JC? | Applies — AMT is computed on adjusted total income derived by making specified adjustments to total income computed under the regular provisions |
| Banks, NBFCs, insurance companies, power sector? | The general provisions apply to all persons unless there are sector-specific provisions in the ICDS or in the Act |
| Gross-basis computations — interest, royalty, fees for technical services under section 115A? | Applies, for arriving at the amount chargeable to tax |
So far, 10 ICDS have been issued by the Government, and CBDT has issued clarifications through Circular No. 10/2017 dated 23 March 2017.
The same set of standards is excluded from the section 115JB book profit computation and included in the section 115JC AMT computation. The reason is structural: book profit starts from the profit and loss account, which ICDS never touches; adjusted total income starts from total income under the regular provisions, which ICDS does affect. A company computing both figures must therefore carry the ICDS adjustments into one and keep them out of the other.
The ten standards
Paragraph 25.9 sets out what each covers:
| Standard | Scope note from the Guidance Note | |
|---|---|---|
| I | Accounting Policies | Application of significant accounting assumptions and policies in computing income. Financial statements reflect the state of financial affairs and form the base for computing taxable income |
| II | Valuation of Inventories | The concept and definition of "inventory" in para 2(1) contemplates business; even the sub-clause on materials and supplies consumed in production or in rendering services contemplates the existence of business |
| III | Construction Contracts | A contract negotiated for construction of an asset or combination of assets; where activity continues beyond a year, whether the contractor is taxed on completion or proportionately over the years |
| IV | Revenue Recognition | Based on AS 9; some AS 9 principles are adopted, but there are significant differences between the ICDS and AS 9 |
| V | Tangible Fixed Assets | Land, building, machinery, plant or furniture held with the intention of being used to produce or provide goods or services, and not held for sale in the normal course |
| VI | Effects of Changes in Foreign Exchange Rates | Corresponds to AS 11 and to Ind AS 21 notified under the Companies (Indian Accounting Standards) Rules, 2015 |
| VII | Government Grants | Meaning, scope, forms, point of taxation and disclosure. The Finance Act, 2015 expanded "income" to include all government grants save asset-specific grants; the ICDS guides year of taxation or capitalisation, refund mechanism, point of recognition and treatment of grants for a group of assets |
| VIII | Securities | Part A — securities held as stock-in-trade, but not securities held by insurance businesses, mutual funds or venture capital funds, and not those held by banks and public financial institutions. Part B carries specific provisions for scheduled banks and public financial institutions |
| IX | Borrowing Costs | Relevant for section 36(1)(iii), for Explanation 8 to section 43(1) on interest that cannot be capitalised, and for section 57(iii) on deductibility of interest under income from other sources |
| X | Provisions, Contingent Liabilities and Contingent Assets | Excludes items arising from financial instruments, executory contracts and insurance business contracts with policyholders — and excludes financial instrument transactions whether held as investments or as stock-in-trade |
Where to read further
Paragraph 25.13 points to two sources: the ICDS notified by the CBDT under section 145(2), and ICAI's Direct Taxes Committee publication "Technical Guide on Income Computation and Disclosure Standards", issued in July 2017.
Worked example
| Assessee | ICDS applicability |
|---|---|
| Proprietor on the cash system | Not applicable. Clause 13(d) is answered "No" |
| Firm on the mercantile system | Applies to business and other-sources income; not to its books |
| Company computing section 115JB book profit | ICDS adjustments excluded from book profit |
| LLP computing AMT under section 115JC | ICDS adjustments flow through into adjusted total income |
| Scheduled bank holding securities | Part B of ICDS VIII, not Part A; measurement per RBI guidelines under section 145A |
| Non-resident with royalty taxed on a gross basis under section 115A | ICDS applies for arriving at the amount chargeable |
Audit checklist
- Establish the method of accounting first — the whole question of ICDS applicability turns on it.
- Record the ICDS applicability conclusion in the working papers before answering clause 13(d).
- Confirm the ICDS adjustments were made in the computation, not in the books.
- Keep ICDS adjustments out of the section 115JB book profit and inside the section 115JC AMT computation.
- For banks, NBFCs, insurers and the power sector, check for sector-specific provisions before applying the general ones.
- Apply ICDS to gross-basis section 115A computations.
- Use Part A or Part B of ICDS VIII according to the entity type.
- Read Circular No. 10/2017 and ICAI's Technical Guide on ICDS.
Common mistakes
- Applying ICDS to a cash-basis assessee.
- Restating the books for an ICDS difference.
- Carrying ICDS adjustments into section 115JB book profit.
- Omitting them from the section 115JC AMT computation.
- Applying Part A of ICDS VIII to a scheduled bank or public financial institution.