Taxation · Deductions from Gross Total Income

Comprehensive Problems on Total Income Computation (Deductions from Gross Total Income)

Updated 4 October 2026 · Fact-checked

A comprehensive problem asks you to compute each head of income, set off losses, reach gross total income, subtract allowed deductions to get total income, then apply rates, rebate and cess. Solve it in a fixed order, check each deduction's limit and regime eligibility, and show every step.

Understand Comprehensive Problems on Total Income Computation

A comprehensive problem joins everything you have studied into one computation. You start with income under each head, apply set-off and carry forward of losses, and reach gross total income (GTI). Deductions for savings, health, donations and similar items then bring you down to total income. Tax is charged on total income.

Deductions are not automatic. Each one has a condition (who can claim, what was paid, how it was paid), a limit (a fixed amount, a percentage, or the actual payment, whichever is lower) and sometimes a bar on certain income. The total of all deductions can never exceed GTI, so total income cannot be negative because of deductions.

The tax regime decides which deductions are open to you. Under the default (new) regime for an individual, most deductions are not available. Employer contribution to the employee's NPS account and a few others are allowed. Under the old regime, which the individual must choose to opt for, the full list is open, with the old slabs. Read the question to see which regime applies. If it is silent, check whether the question asks you to compute under both.

The last stage is tax. Apply slab rates to normal income, apply special rates to special-rate income such as capital gains taxed at a flat rate, subtract rebate if eligible, check marginal relief, add surcharge if income is high, then add 4% health and education cess. Marks are spread over each stage, so a wrong deduction early still lets you earn marks for correct method later.

Key rules to remember

Gross total income: GTI = Salary + House property + Business or profession + Capital gains + Other sources (after set-off and carry forward of losses, and after clubbing); Compute each head fully before touching deductions.
Total income: Total income = GTI − Deductions allowed; Round the result to the nearest ₹10 before applying slabs.
Overall cap on deductions: Deductions allowed ≤ GTI (less any income on which the deduction is barred); Some deductions are not allowed against certain special-rate capital gains. Check the condition for each deduction.
Savings-type combined limit: Life insurance + PPF + ELSS + tuition fee and similar items, together with employee pension-type contributions in the same group ≤ ₹1,50,000 (old regime); Add all items in the group first, then apply the limit once. Employer NPS contribution is not part of this group. It has its own separate limit and sits outside the ₹1,50,000 limit.
Health insurance premium (old regime): Self, spouse and children (below 60): up to ₹25,000. Parents are a separate additional limit.; Premium must be paid by a mode other than cash. Higher limits apply for senior citizens.
Savings bank interest deduction (old regime): Lower of interest received and ₹10,000 (individual or HUF below 60); Only for savings account interest, not fixed deposit interest.
Employer NPS contribution (available in both regimes): Deduction = Lower of employer contribution and 14% of salary (basic + DA) under new regime; 10% under old regime; The contribution is first included in taxable salary, then deducted. This deduction is separate from the ₹1,50,000 group limit and is outside it.
Tax payable: Tax on total income − Rebate (if eligible) + Surcharge (if applicable) + 4% cess; Cess applies on tax plus surcharge, after rebate and marginal relief.
Rates assumed in this page (tax year 2026-27): New regime: ₹0–4,00,000 nil; 4–8 lakh 5%; 8–12 lakh 10%; 12–16 lakh 15%; 16–20 lakh 20%; 20–24 lakh 25%; above 24 lakh 30%. Old regime (below 60): ₹0–2,50,000 nil; 2.5–5 lakh 5%; 5–10 lakh 20%; above 10 lakh 30%.; Always use the rates given in the question, or confirm them against the Finance Act, 2026 provisions in your study material.

How to solve Comprehensive Problems on Total Income Computation questions

Use the same order for every comprehensive problem. It keeps the working clean and protects your step marks.

1Read the question once and mark the assessee type, residential status, age and the regime to be used.
2Compute income under each head separately, with short working notes. Apply the standard deduction and house property deductions here.
3Set off losses within and across heads, then carry forward what remains. Apply clubbing if the facts require it.
4Add the heads to get GTI. Separate special-rate income if there is any.
5List each deduction, check the condition and limit, and write the allowed amount. Apply group limits once. Test the cap of GTI.
6Deduct from GTI, round total income to the nearest ₹10, and apply slabs. Compute special-rate tax separately.
7Subtract rebate if eligible, check marginal relief, add surcharge if applicable, then add 4% cess.
8Round tax payable to the nearest ₹10 if required by the format, and state the final answer clearly.

Quickest way: Format-first approach for total income problems

When to use it: Use it in any 10 to 14 mark problem where time is tight. It also helps in MCQs that ask for total income or tax.

Draw a vertical computation sheet before you start: heads, GTI, deductions, total income, tax. Fill in only numbers.
For MCQs, compute GTI first, then test the options against the deductions. Options that ignore a limit or the regime are usually wrong.
Check the group limit first: add all savings items, then cap at ₹1,50,000. This one step settles many questions.
Watch for traps: cash-paid health premium, FD interest claimed as savings interest, deduction exceeding GTI, rebate with income just over the limit.
For written answers, give a short working note for each deduction (item, limit, allowed). Examiners award marks line by line.
Do not compute tax before you have fixed the regime. Wrong slabs lose the whole last section.

Common mistakes in Comprehensive Problems on Total Income Computation

Claiming deductions that the new regime does not allow
Students memorise the old list and do not check which regime the question uses.
Fix: Write the regime at the top. Under the default regime allow only the deductions the question's regime permits, such as employer NPS.
Applying the ₹1,50,000 limit to each item separately
The items look unrelated, so students limit each one.
Fix: Add all items in the group, then apply the limit once to the total.
Deducting from the wrong base so deductions exceed GTI
Students forget the cap or deduct before setting off losses.
Fix: Finish set-off and carry forward first. Then limit total deductions to GTI.
Treating fixed deposit interest as eligible for the savings interest deduction
Both are bank interest, so they get merged.
Fix: Separate savings account interest from FD interest. Only the savings amount qualifies, and only up to ₹10,000 in the old regime.
Claiming health insurance premium paid in cash
The amount and the person insured match, so the payment mode is ignored.
Fix: Check the mode of payment. Allow nothing for cash premium.
Forgetting rebate, marginal relief or cess
Students stop once slab tax is computed.
Fix: Run a checklist after slab tax: rebate, marginal relief, surcharge, cess. Tick each one.

Worked examples

Example 1

Mr. Arun, aged 40, is a resident individual who opts for the old regime for the tax year 2026-27. His gross salary is ₹9,00,000. He has a self-occupied house with interest on a housing loan of ₹1,50,000. He received savings bank interest of ₹20,000 and fixed deposit interest of ₹40,000. He paid ₹1,80,000 on LIC premium, PPF and ELSS together. He paid a health insurance premium of ₹30,000 for himself and his family by cheque. Compute his total income and tax payable. Use old regime slabs: nil up to ₹2,50,000; 5% up to ₹5,00,000; 20% up to ₹10,00,000; 30% above; 4% cess. The standard deduction is ₹50,000.

Show the solution

Salary: ₹9,00,000 − standard deduction ₹50,000 = ₹8,50,000.
House property: self-occupied, interest ₹1,50,000 is within the ₹2,00,000 limit. Income = (₹1,50,000).
Other sources: ₹20,000 + ₹40,000 = ₹60,000.
GTI = ₹8,50,000 − ₹1,50,000 + ₹60,000 = ₹7,60,000.
Savings group: ₹1,80,000 exceeds the limit, so allowed = ₹1,50,000.
Health insurance: ₹30,000 against limit ₹25,000, paid by cheque, so allowed = ₹25,000.
Savings bank interest: lower of ₹20,000 and ₹10,000 = ₹10,000. FD interest is not eligible.
Total deductions = ₹1,50,000 + ₹25,000 + ₹10,000 = ₹1,85,000. This is below GTI.
Total income = ₹7,60,000 − ₹1,85,000 = ₹5,75,000.
Tax: nil on first ₹2,50,000; 5% × ₹2,50,000 = ₹12,500; 20% × ₹75,000 = ₹15,000. Total = ₹27,500.
Rebate: not available, because total income exceeds ₹5,00,000.
Cess: 4% × ₹27,500 = ₹1,100. Tax payable = ₹28,600.

Answer: Total income = ₹5,75,000. Tax payable including cess = ₹28,600.

Example 2

Ms. Rhea, aged 35, is a resident individual under the default (new) regime for the tax year 2026-27. Her salary is basic ₹10,00,000 and other allowances ₹3,00,000 (all taxable), plus her employer's contribution of ₹1,00,000 to her NPS account (additional to these amounts). She also received interest of ₹25,000 on fixed deposit. She paid ₹1,50,000 into PPF. Compute total income and tax payable. Use new regime slabs: nil up to ₹4,00,000; 5% to ₹8,00,000; 10% to ₹12,00,000; 15% to ₹16,00,000; 4% cess. Standard deduction is ₹75,000. Rebate is available up to total income of ₹12,00,000, with marginal relief just above it.

Show the solution

Gross salary = ₹10,00,000 + ₹3,00,000 + ₹1,00,000 employer NPS = ₹14,00,000.
Less standard deduction ₹75,000. Taxable salary = ₹13,25,000.
Other sources: FD interest ₹25,000.
GTI = ₹13,25,000 + ₹25,000 = ₹13,50,000.
PPF ₹1,50,000: not allowed under the new regime.
Employer NPS: limit 14% × ₹10,00,000 = ₹1,40,000. Actual ₹1,00,000 is lower, so allowed = ₹1,00,000.
Total income = ₹13,50,000 − ₹1,00,000 = ₹12,50,000.
Slab tax: nil on ₹4,00,000; 5% × ₹4,00,000 = ₹20,000; 10% × ₹4,00,000 = ₹40,000; 15% × ₹50,000 = ₹7,500. Total = ₹67,500.
Rebate does not apply, as income exceeds ₹12,00,000. Marginal relief: income above ₹12,00,000 is ₹50,000. Tax of ₹67,500 exceeds this, so tax is limited to ₹50,000.
Cess: 4% × ₹50,000 = ₹2,000. Tax payable = ₹52,000.

Answer: Total income = ₹12,50,000. Tax payable after marginal relief and cess = ₹52,000.

Exam tips

Write the regime name at the top of your answer. It signals method and prevents regime errors.
Show a short working note for each deduction with item, limit and allowed amount. Step marks depend on it.
In MCQs, compute GTI first, then check group limits and payment mode. Most traps sit in these two places.
If a question gives slab rates, use them exactly, and do not rely on remembered rates.
After tax, run the checklist: rebate, marginal relief, surcharge, cess, rounding.

Practice questions from Deductions from Gross Total Income

Comprehensive Problems on Total Income Computation in other exams

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

Comprehensive Problems on Total Income Computation: frequently asked questions

What is the difference between gross total income and total income?

Gross total income is the sum of income under all heads after set-off, carry forward and clubbing. Total income is what remains after subtracting allowed deductions. Tax is charged on total income.

Do I have to compute under both regimes in the exam?

Only if the question asks. Many questions state the regime or ask for the better option. Read the requirement first and work to it.

Can deductions reduce total income below zero?

No. Total deductions are capped at gross total income, and a deduction cannot create or increase a loss. If a deduction exceeds GTI, claim only up to GTI.

How should I practise these problems for ICAI-style papers?

Solve problems from past papers, RTPs and MTPs in a fixed format. Time yourself and aim to finish one problem in about 15 minutes. Then review which deduction or rate step lost marks.