Computation of Income from Business or Profession AY 2026-27

By | May 9, 2026

Computation of Income from Business or Profession

Introduction
Income from business or profession is computed under Section 29 of the Income-tax Act, 1961, following provisions in Sections 30 to 43D. These provisions determine allowable and disallowable expenses for calculating taxable income.

General Principles

  • Sections 30 to 43D are not exhaustive. Expenditures or losses incidental to business or profession may be deductible based on ordinary commercial principles, even if not explicitly covered.
  • Expenditures expressly prohibited under these sections are not deductible.

Business Losses
Business losses may be allowed if they meet the following conditions:

  • Losses are revenue in nature, not capital.
  • Incurred during the relevant previous year.
  • Incidental to the business or profession.
  • Real losses, not fictional or expected.
  • Not restricted by any provision of the Act.

Computation of Income
Income is computed either under normal provisions or under the presumptive taxation scheme. Under normal provisions, taxable income from business or profession is calculated as follows:

  1. Add: Revenue receipts and specified capital receipts.
  2. Deduct:
  • Revenue expenditures.
  • Allowed capital expenditures.
  • Payments and expenditures subject to conditions.
  1. Add:
  • Non-deductible capital expenditures.
  • Disallowed expenditures due to non-fulfillment of conditions.

 

Treatment of Foreign Exchange Fluctuations

 

Introduction
Foreign exchange fluctuations arising from changes in foreign exchange rates can be classified as either capital account fluctuations or revenue account fluctuations. The tax treatment varies based on this classification, governed by Section 43ASection 43AA, and the provisions of ICDS-VI (The Effects of Changes in Foreign Exchange Rates).

Types of Foreign Exchange Fluctuations

  • Capital Account Fluctuations
  • Applicable when fluctuations relate to assets purchased for business or profession.
  • Adjusted to the actual cost or written-down value (WDV) of the asset in the year of payment.
  • Examples:
    • Depreciable assets
    • Capital expenditure on scientific research or patents
    • Cost of acquisition for computing capital gains
  • Revenue Account Fluctuations
  • Gains are taxable under Section 28; losses are deductible under Section 37(1).
  • Governed by ICDS-VI, covering:
    • Monetary and non-monetary items
    • Financial statements of foreign operations
    • Forward contracts
    • Foreign currency translation reserves.

Key Provisions for Capital Account Fluctuations (Section 43A)

  • Eligibility: Arises when an asset is acquired from outside India for business or profession, and a liability exists for its payment.
  • Adjustment:
  • Added to or reduced from the cost, WDV, or acquisition cost of the asset.
  • Applies even if the asset is transferred but the block of assets exists at the time of payment.
  • Does not apply where liability for acquiring the asset is met, directly or indirectly, by someone other than the assessee.
    • Forward Contracts: If a forward contract exists, adjustments are based on the settlement price.
    • Block Ceases to Exist: Gains or losses are deemed capital receipts or expenditures with no tax impact.

Key Provisions for Revenue Account Fluctuations (Section 43AA)

  • Gains and losses not linked to capital transactions are treated as revenue fluctuations.
  • Taxable or deductible in the year they arise as per ICDS-VI.

 

Deductions Allowed on Payment Basis

 

Introduction
Certain expenditures are deductible only on actual payment, regardless of the assessee’s accounting method. These deductions are governed by Section 43B of the Income-tax Act.

  • For most payments, deductions are allowed in the year of accrual if paid by the due date for filing the income tax return.
  • Overdue payments to micro or small enterprises (MSEs) are disallowed on an accrual basis, even if paid by the return filing due date, and are only allowed in the year of actual payment.

Expenses Deductible on Payment Basis

  • Taxes and Duties
    • Includes sums payable as tax, duty, cess, or fee under any law.
    • Deductions are allowed on actual payment, including advanced deposits, but exclude amounts secured via bank guarantees.
  • Contributions to Employee Welfare Funds
    • Employer contributions to provident funds, gratuity funds, etc., are deductible if deposited by the return filing due date.
    • Employee contributions are allowed only if deposited by the due date under the relevant fund’s rules.
  • Bonus or Commission to Employees
    • Deductible when paid, even if accrued earlier.
  • Interest on Loans and Advances
    • Interest payable to banks, financial institutions, or specified non-banking financial companies (NBFCs) is deductible only upon actual payment.
    • Conversion of interest into loans, debentures, or similar instruments does not qualify as payment.
  • Leave Encashment
    • Payments for leave encashment are deductible only when paid.
  • Payments to Indian Railways
    • Sums payable for the use of railway assets are allowed as deductions upon actual payment.
  • Payments to Micro or Small Enterprises (MSEs)
    • Payment to MSME is allowed only in the year of actual payment if paid beyond the Section 15 time limit.
    • Time limits under Section 15 of the MSMED Act, 2006:
      • Payment within the agreed terms (not exceeding 45 days).
      • Payment within 15 days if no terms are agreed upon.

 

Full Value of Consideration for Transfer of Immovable Property (Other than a Capital Asset)

 

When land or building (not a capital asset) is transferred for consideration less than its stamp duty value, the stamp duty value is deemed to be the full value of consideration for computing profits and gains, except when within specified safe-harbor limits.

Key Provisions

  • Rule:
    • If the consideration received for transferring immovable property is less than the stamp duty value, the latter is deemed as the full value of consideration.
  • When Sale Agreement Precedes Registration:
    • The stamp duty value on the agreement date may be used if consideration is paid (wholly or partly) via account payee cheque, draft, ECS, or prescribed electronic modes before the agreement date.

Exceptions

  • Safe-harbour Rule

o Stamp duty value not exceeding 110% of actual consideration is treated as the full value of consideration.

  • Reference to Valuation Officer

o If the stamp duty value exceeds the fair market value, and the assessee has not disputed this value in any appeal or litigation, the Assessing Officer may refer the matter to a Valuation Officer.

o The deemed full value of consideration will be the lower of:

  • Valuation Officer’s assessed value, or
  • Stamp duty value.

 

Computation of Income from Construction and Service Contracts

 

Income from construction and service contracts is computed based on the Percentage of Completion Method as specified under the Income-tax Act and applicable Income Computation and Disclosure Standards (ICDS).

Method of Computation

The provisions apply to:

  • Construction Contracts
  • Service Contracts

Income from Construction Contracts

  • A construction contractrefers to a specifically negotiated agreement for constructing assets that are interrelated in terms of design, technology, function, or ultimate use. This includes contracts for services directly linked to construction (e.g., project managers, architects) and contracts involving destruction/restoration of assets or the environment.
  • Income is determined using Percentage of Completion Method, aligning contract revenue with incurred costs at each stage of completion per ICDS-III.
  • Revenue considerations:
  • Retention money is included.
  • Incidental income (interest, dividend, or capital gains) is not deducted from contract costs.

Income from Service Contracts

  • Percentage of Completion Method:Revenue and associated expenses are recognized similarly to construction contracts, following ICDS-IV.
  • Project Completion Method:Revenue is recognized upon completion/substantial completion of the contract. This method applies only to service contracts with a duration not exceeding 90 days and is optional for the assessee.
  • Straight Line Method:Revenue is recognized evenly over a specified period for services rendered through multiple acts. This method is also optional and applies when services are performed over a specific timeframe.