CA Intermediate · Taxation

Profits and Gains of Business or Profession for CA Inter Taxation

Profits and Gains of Business or Profession is the tax year head under which business and professional income is computed. Start from book profit, add back inadmissible items, deduct allowable items and depreciation, add deemed profits, then apply presumptive or audit rules where relevant. Present it in a clear, stepwise statement.

What this chapter covers

This chapter taxes income from a business or profession. You begin with what counts as business income and when it is chargeable. Then you move through allowed expenses, depreciation, disallowed expenses, deemed profits, special deductions, presumptive schemes and the books and audit rules. Under the Income-tax Act, 2025, you use the term tax year and the 2025 Act's section numbers, as amended by the Finance Act, 2026 (tax year 2026-27). Learn the rules by concept first and add section numbers only where you are sure of them.

The usual exam question gives a profit and loss account and asks you to compute business income. You start from net profit, add back items that are not allowed, deduct items that are allowed but not charged in the books, and adjust for depreciation and deemed income. The method is the same every time. Only the facts change.

This chapter connects to the rest of Paper 3 Section A. The business income you compute flows into the total income computation, where you set off losses, claim deductions and work out tax. It also links to capital gains, because depreciation affects the written down value of a block of assets and a sale of an asset can trigger a gain or loss. The MCQs in this chapter test small rules, such as limits, conditions and time-based disallowances. Your written answers need a neat computation with a short note on each treatment.

This chapter is one of the most computation-heavy parts of Paper 3 Section A, and it feeds almost every total income question. A single mistake in business income carries into every later step. Across the 100-mark Paper 3, 30 marks are MCQs and 70 marks are descriptive. These figures apply to the whole paper, not to this chapter or to Section A alone. MCQs reward quick recall of conditions, and the written answers reward a clean statement with working notes. If your method is strong here, you can earn step marks even when one item is wrong. Time spent on this chapter also makes the later chapters easier.

Profits and Gains of Business or Profession: topics in the order to study them

1Chargeability and Computation of Business IncomeIt gives you the basic scheme: what is business income, when it is taxed, and how to start from book profit.
2Admissible Deductions and Allowable ExpensesYou need to know what is allowed before you can spot what is not allowed.
3Depreciation and Other Capital AllowancesDepreciation is a large, rule-based computation that appears in most questions, so learn it while the allowed items are fresh.
4Inadmissible Expenses and DisallowancesThis is the biggest source of adjustments, and it makes sense once you know the allowed list.
5Deemed Profits and Business Receipts TaxableThese are add-ons to income that you handle after the main allow and disallow steps.
6Special Deductions: Site Restoration Fund and Similar ProvisionsThese are narrow provisions that are easier to learn once the core computation is clear.
7Presumptive Taxation SchemesThey replace the normal computation with a fixed rate of profit, so you must first know the normal method to see the contrast.
8Maintenance of Books and Tax AuditIt ties the chapter together by showing who must keep books and get audited, and it links to presumptive eligibility.

How to prepare Profits and Gains of Business or Profession

Prepare this chapter by building one reusable computation format and then filling it with rules. Practise in that format until it becomes automatic.

Read the scheme of the chapter once and write a one-page format: net profit, add back, deduct, deemed income, business income.
Learn each topic in the study order and make a short list of conditions and limits for every rule, using your updated material for the Income-tax Act, 2025.
Practise depreciation separately with block-of-assets questions until the opening WDV, additions, sales and closing WDV steps are routine.
Solve full profit and loss account problems and mark every line as add back, deduct or ignore, with a one-line reason in your working note.
Compare normal computation with presumptive schemes on the same facts, and note the eligibility limits and audit consequences.
Do timed MCQ sets on limits, time conditions and exceptions, since there is no negative marking and you should attempt every question.
Redo your wrong answers after a week and update your rule list.

Common mistakes in Profits and Gains of Business or Profession

Starting from the wrong figure instead of net profit.
Fix: Write net profit first, then go line by line through every debit and credit and decide the treatment.
Adding back book depreciation but forgetting to deduct tax depreciation.
Fix: Put depreciation as a fixed two-line step in your format: add back book depreciation, deduct tax depreciation.
Treating a disallowance as applying to the whole amount when only a part is disallowed.
Fix: For each disallowance note the trigger, the portion disallowed and any exception in your rule list.
Ignoring income that is credited in the books but taxable under another head or exempt.
Fix: Scan the credit side separately and deduct or reclassify such items with a short reason.
Using an old section number or the term assessment year.
Fix: Use the Income-tax Act, 2025 terms such as tax year. If you are unsure of a section number, state the rule in words.
Applying presumptive taxation without checking eligibility or the effect on books and audit.
Fix: Check the eligibility limits and conditions first, then state the consequence for books and audit.

Last-day revision: Profits and Gains of Business or Profession

Start the computation from net profit as per the profit and loss account, then adjust.
Add back expenses that are not allowed and any amount debited that is not a business expense.
Deduct income that is taxed elsewhere or not taxable, if it was credited to the profit and loss account.
Depreciation is computed on the block of assets at the prescribed rate on the written down value.
Always check whether the book depreciation is added back and the tax depreciation is deducted.
Check the payment-based disallowances: what matters is whether the payment was made in time or the condition was met.
Deemed profits and certain receipts are taxed even if they do not look like normal business income.
Presumptive schemes use a prescribed percentage of turnover or receipts and need eligibility checks.
Books and tax audit rules depend on turnover or receipts thresholds, so check them against the facts given.
Show a working note for each adjustment, because step marks depend on it.
Attempt every MCQ, since wrong answers carry no negative marking.

Profits and Gains of Business or Profession practice questions

Profits and Gains of Business or Profession in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Profits and Gains of Business or Profession: frequently asked questions

How should I start solving a business income question?

Start with the net profit shown in the profit and loss account. Then go through each debit and credit and decide whether to add back, deduct or leave it. Finish with depreciation and deemed items, and show a working note for each adjustment.

Do I need to learn section numbers for this chapter?

Learn the rules and conditions first, because they carry the marks. Use section numbers of the Income-tax Act, 2025 only where you are sure of them. Never mix in the 1961 Act numbers or the term assessment year.

How much time should I give depreciation?

Give it separate practice, because it appears often and has a fixed method. Once the block-of-assets steps are routine, it becomes a quick scoring part of the computation.

How do I handle MCQs from this chapter?

Most MCQs test a limit, a condition or an exception. Learn those from a short rule list and revise it often. Attempt every question, as wrong answers are not penalised.