CS Executive · what changed for your attempt
CS Executive December 2026 and June 2027: applicable amendments and notifications
Checked against ICSI's official announcements, as of 12 October 2026. Each item links the official notice; read it before you rely on it.
ICSI tests amendments made up to a cut-off date about six months before each exam: 31 May for the December session and 30 November of the previous year for the June session. Before each session it publishes which study material edition applies, subject-wise supplements covering later amendments, and separate notices on which Finance Act or tax law applies.
At a glance
| Update | Type | Applies to |
|---|---|---|
| Income-tax Act, 2025 examined from June 2027 | Tax law | June 2027 |
| December 2026: study material editions and supplements to use | Applicability notice | December 2026 |
| December 2026: Finance Act, 2025 applies; new Income-tax Act does not | Tax law | December 2026 |
Tax law · notice of 5 Aug 2026
Income-tax Act, 2025 examined from June 2027
The Income-tax Act, 2025 (as amended by the Finance Act, 2026) and the Income-tax Rules, 2026 took effect on 1 April 2026 for tax year 2026-27. ICSI will examine them in Tax Laws and Practice from the June 2027 session onwards, and the same applies wherever other CS papers refer to the Income-tax Act. Notifications and circulars issued up to 30 November 2026 are in scope for June 2027.
What to do: If you are taking June 2027, switch to the new-Act edition of the Tax Laws and Practice study material marked for June 2027 onwards and learn the new section numbers and the tax year concept.
Effective: From the June 2027 session of CS examinations onwards (1 Apr 2026) · Attempts: June 2027
Chapters affected: Direct Tax at a Glance (Tax Laws and Practice); Basic Concept of Income Tax (Tax Laws and Practice); Incomes which do not form part of Total Income (Tax Laws and Practice); Income under the Head Salary (Tax Laws and Practice); Income under the Head House Property (Tax Laws and Practice); Profits and Gains from Business and Profession (Tax Laws and Practice); Capital Gains (Tax Laws and Practice); Income from Other Sources (Tax Laws and Practice); Clubbing Provisions and Set Off and Carry Forward of Losses (Tax Laws and Practice); Deductions (Tax Laws and Practice); Computation of Total Income and Tax Liability of various Entities (Tax Laws and Practice); Classification and Tax Incidence on Companies (Tax Laws and Practice); Procedural Compliance under Income Tax (Tax Laws and Practice)
Official source: ICSI - Applicability of the Income Tax Act, 2025 and Income Tax Rules, 2026 from June 2027 CS Examination onwards · ICSI - Executive Programme study material (includes Tax Laws and Practice for June 2027 exam onwards)
Applicability notice · notice of 28 Jul 2026
December 2026: study material editions and supplements to use
For December 2026, ICSI lists the study material editions that apply: Papers 1 to 6 are updated to 30 November 2025 and Tax Laws and Practice to 31 May 2025. Amendments after those dates, up to 31 May 2026, are covered in subject-wise supplements for the December 2026 attempt, which ICSI tells students to read along with the study material.
What to do: Download the December 2026 supplement for each paper you are taking and revise it with the matching chapters; questions can be set on these amendments.
Effective: Applicable for the December 2026 examination · Attempts: December 2026
Scope: the whole exam, not one chapter.
Official source: ICSI - Study Material applicable for December 2026 Examination · ICSI - Supplements (December 2026 attempt)
Tax law · notice of 29 Jun 2026
December 2026: Finance Act, 2025 applies; new Income-tax Act does not
For December 2026, Tax Laws and Practice is based on the Finance Act, 2025, that is Assessment Year 2026-27 (Previous Year 2025-26) under the Income-tax Act, 1961. CBDT, CBIC and government rules, notifications and circulars issued up to 31 May 2026 are also examinable. ICSI states that the Income-tax Act, 2025 will not be tested in the December 2026 session.
What to do: Prepare direct tax on the 1961 Act for AY 2026-27 and GST and customs as amended up to 31 May 2026.
Effective: Applicable for the December 2026 session of examination · Attempts: December 2026
Chapters affected: Direct Tax at a Glance (Tax Laws and Practice); Basic Concept of Income Tax (Tax Laws and Practice); Incomes which do not form part of Total Income (Tax Laws and Practice); Income under the Head Salary (Tax Laws and Practice); Income under the Head House Property (Tax Laws and Practice); Profits and Gains from Business and Profession (Tax Laws and Practice); Capital Gains (Tax Laws and Practice); Income from Other Sources (Tax Laws and Practice); Clubbing Provisions and Set Off and Carry Forward of Losses (Tax Laws and Practice); Deductions (Tax Laws and Practice); Computation of Total Income and Tax Liability of various Entities (Tax Laws and Practice); Classification and Tax Incidence on Companies (Tax Laws and Practice); Procedural Compliance under Income Tax (Tax Laws and Practice); Concept of Indirect Taxes at a Glance (Tax Laws and Practice); Basics of Goods and Services Tax (Tax Laws and Practice); Levy and Collection of GST (Tax Laws and Practice); Time, Value and Place of Supply (Tax Laws and Practice); Input Tax Credit and Computation of GST Liability (Tax Laws and Practice); Procedural Compliance under GST (Tax Laws and Practice); Overview of Customs Act (Tax Laws and Practice)
Official source: ICSI - Applicability of the Finance Act, 2025 for December 2026 Examinations
Chapters to revise with these changes in mind
- Direct Tax at a GlanceTax Laws and Practice · 2 updates
- Basic Concept of Income TaxTax Laws and Practice · 2 updates
- Incomes which do not form part of Total IncomeTax Laws and Practice · 2 updates
- Income under the Head SalaryTax Laws and Practice · 2 updates
- Income under the Head House PropertyTax Laws and Practice · 2 updates
- Profits and Gains from Business and ProfessionTax Laws and Practice · 2 updates
- Capital GainsTax Laws and Practice · 2 updates
- Income from Other SourcesTax Laws and Practice · 2 updates
- Clubbing Provisions and Set Off and Carry Forward of LossesTax Laws and Practice · 2 updates
- DeductionsTax Laws and Practice · 2 updates
- Computation of Total Income and Tax Liability of various EntitiesTax Laws and Practice · 2 updates
- Classification and Tax Incidence on CompaniesTax Laws and Practice · 2 updates
- Procedural Compliance under Income TaxTax Laws and Practice · 2 updates
- Concept of Indirect Taxes at a GlanceTax Laws and Practice
- Basics of Goods and Services TaxTax Laws and Practice
- Levy and Collection of GSTTax Laws and Practice
- Time, Value and Place of SupplyTax Laws and Practice
- Input Tax Credit and Computation of GST LiabilityTax Laws and Practice
- Procedural Compliance under GSTTax Laws and Practice
- Overview of Customs ActTax Laws and Practice
This page lists only items we could verify on ICSI's or the regulator's own website, summarised in our words. If ICSI publishes a newer applicability notice, it overrides this page. Check for new notices: ICSI - Relevant Material for the upcoming examination.