CS Executive · Tax Laws and Practice

Computation of Total Income and Tax Liability of Various Entities

Computation of total income means taking an assessee's income under the five heads, applying clubbing, set-off, carry forward and deductions, and arriving at total income. You then apply the tax rates that suit the entity type: individual, HUF, firm, company or others. Work in a fixed format, step by step.

What this chapter covers

This chapter pulls together everything you have learnt in Paper 7 Part I. Earlier chapters teach the individual pieces: residential status, heads of income, clubbing, set-off and deductions. Here you join them into one working. You start with income under each head, apply the rules, reach gross total income, subtract deductions and arrive at total income. Then you compute tax.

The chapter then moves across entities. An individual is the base case. A Hindu undivided family, a firm, a company and other entities follow the same logic but differ in rates, permitted deductions and special rules. Your job is to know what changes for each entity and what stays the same.

The chapter also covers a few specific provisions. These include deductions that are allowed only on actual payment, and the tax on the accumulated balance of a recognised provident fund. Under Section 191 of the Income-tax Act, 2025, where that balance is included in an employee's total income because paragraph 8 of Part A of Schedule XI does not apply, the Assessing Officer calculates the total of the various sums of tax as per paragraph 9 of that Schedule. For June 2027, write all answers under the Income-tax Act, 2025, as amended by the Finance Act, 2026 (tax year 2026-27).

Paper 7 is a written paper, and Part I Direct Tax carries 60 of its 100 marks. Computation questions are where you can score full marks if your method is sound, because the steps are mechanical. Examiners also give marks for correct format, working notes and a clear conclusion, so even a partly right answer earns credit. Weak computation skills cost you in every other direct tax chapter too, as they all feed into this one. Since you need at least 40% in each paper and 50% in the group aggregate, a reliable computation chapter helps you clear Paper 7 safely.

Computation of Total Income and Tax Liability of various Entities: topics in the order to study them

1Computation of Total Income of an IndividualIt is the base format. Every other entity is a variation of this working, so learn it first.
2Deductions Allowed on Actual Payment BasisThese are timing rules that change which expenses you can claim. They apply to businesses, so learn them once the basic format is clear.
3Tax on Accumulated Balance of Recognised Provident FundIt is a short, specific provision linked to salary income of an individual. It is easy to learn after the individual computation.
4Tax Liability of Hindu Undivided Family and FirmsBoth follow the individual format with changes in rates and allowed deductions, so they come next.
5Computation of Total Income of CompaniesCompanies have their own rates and adjustments, so study them after you are comfortable with the simpler entities.
6Tax Liability of Other EntitiesThis covers the remaining entity types. Study it last, since it builds on all the earlier comparisons.

How to prepare Computation of Total Income and Tax Liability of various Entities

This chapter rewards practice more than reading. Aim to be able to produce a clean computation from memory of the format.

Write the standard computation format for an individual on one page: five heads, gross total income, deductions, total income, tax. Reproduce it from memory until it is automatic.
Read the provisions in the Income-tax Act, 2025, as amended by the Finance Act, 2026, and note the entity-wise rates in a comparison sheet with one row per entity.
For each topic, solve at least two full problems with working notes. Keep every working note separate and clearly numbered.
Make a list of timing rules for deductions on actual payment and revise it against the facts in each problem you solve.
For Section 191, learn the trigger in plain words: the balance is included in total income because paragraph 8 of Part A of Schedule XI does not apply, and the Assessing Officer works out tax as per paragraph 9.
Before the exam, do two timed full-length computations in 3 hours, using the 15 minutes of reading time to plan your layout.
Finish each practice answer with a one-line conclusion stating total income and tax payable, as ICSI-style answers require.

Common mistakes in Computation of Total Income and Tax Liability of various Entities

Using individual rates and rules for every entity
Fix: Identify the entity type in the first line of your answer and pick rates and deductions for that entity only.
Ignoring the payment date for deductions allowed on actual payment
Fix: Underline every payment date in the question and compare it with the condition before allowing the deduction.
Applying Section 191 in every case where provident fund money is received
Fix: Check first whether the balance is included in total income because paragraph 8 of Part A of Schedule XI does not apply. Only then use paragraph 9.
Using the Income-tax Act, 1961 provisions and section numbers
Fix: Use only the Income-tax Act, 2025 as amended by the Finance Act, 2026 for June 2027, and check any older note against it.
Giving a bare number with no working notes
Fix: Show each adjustment in a numbered working note so you earn marks for method even if one figure is wrong.
Skipping the conclusion
Fix: Write one closing line stating total income and tax payable, with the Act cited where it matters.

Last-day revision: Computation of Total Income and Tax Liability of various Entities

Follow the sequence: income under heads, clubbing, set-off and carry forward, gross total income, deductions, total income, tax.
Use the Income-tax Act, 2025 for June 2027, as amended by the Finance Act, 2026 (tax year 2026-27).
Rates differ by entity, so check the entity type first.
HUFs and firms follow the individual format with their own rates and allowed deductions.
Companies have their own adjustments and rates, so do not apply individual rules.
Some deductions are allowed only on actual payment, so check the payment date against the due date in the facts.
Section 191: tax on the accumulated balance of a recognised provident fund applies when paragraph 8 of Part A of Schedule XI is not applicable.
Under Section 191, the Assessing Officer calculates the total of the various sums of tax as per paragraph 9 of Schedule XI.
Show working notes for every item you add or disallow.
Round total income as the law requires before applying rates.
End every answer with a clear statement of total income and tax liability.

Computation of Total Income and Tax Liability of various Entities practice questions

Computation of Total Income and Tax Liability of various Entities in other exams

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

Computation of Total Income and Tax Liability of various Entities: frequently asked questions

What is the first step in computing total income?

First decide the assessee's residential status and entity type. Then compute income under each head and move to gross total income, deductions and total income.

Which Act should I use for the June 2027 session?

Use the Income-tax Act, 2025, as amended by the Finance Act, 2026, for tax year 2026-27. The December 2026 session uses the Income-tax Act, 1961 as amended by the Finance Act, 2025, so do not mix the two.

What does Section 191 deal with?

It deals with tax on the accumulated balance of a recognised provident fund. If the balance is included in an employee's total income because paragraph 8 of Part A of Schedule XI does not apply, the Assessing Officer calculates the total of the various sums of tax as per paragraph 9.

How should I practise this chapter?

Solve full computations in a fixed format with working notes and a closing line. Time yourself, because this is a written paper of 3 hours with 15 minutes of extra reading time.