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Taxation · Profits and Gains of Business or Profession

Inadmissible Expenses and Disallowances in Business Income

Updated 5 October 2026

Inadmissible expenses are business costs that the Income-tax Act, 2025 refuses or restricts even though you debited them in the profit and loss account. You solve questions by starting with book profit, adding back each disallowed item at the correct percentage, then deducting amounts allowed late on payment.

Understand Inadmissible Expenses and Disallowances

Business income starts from the profit shown in the books. But the books follow accounting rules, and tax law has its own rules. So some expenses you debited are not allowed for tax, or are allowed only in part, or only when paid. Those are disallowances. You add them back to book profit.

Think of the law as having three kinds of restriction. First, expenses never allowed, such as income tax paid, personal expenses and capital expenditure. Second, expenses allowed only if you follow a condition, such as deducting TDS or paying by a banking mode instead of cash. Third, expenses tied to payment. Certain statutory dues, bonus or commission payable to employees (only where it would not otherwise be payable as profit or dividend) and interest on bank loans are allowed in the year they relate to if you pay them by the due date for filing the return. If you do not, they are allowed only in the year of actual payment. Leave encashment is allowed only in the year of actual payment. Dues to micro and small enterprises are a separate rule: if they stay unpaid beyond the time limit under section 15 of the MSMED Act (15 days where there is no written agreement, otherwise the agreed period, up to a maximum of 45 days), they are allowed only in the year of actual payment. Paying them by the return due date does not help.

The condition-based disallowances are where most exam marks sit. If you pay an expense over ₹10,000 in cash to one person in one day, the whole expense is disallowed. If you fail to deduct or deposit TDS on a specified payment to a resident (such as interest, commission, fees, rent or contractor payments) on which TDS is required, 30% of that expense is disallowed. If the payee is a non-resident, the sum is chargeable to tax in India and tax was deductible but not deducted, or was deducted but not paid by the return due date, the whole amount is disallowed. If you pay a related person more than the fair market value, the excess is disallowed.

The pay-to-claim group works in two directions. For taxes, employer fund contributions, bonus or commission to employees (only where it would not otherwise be payable as profit or dividend) and bank loan interest, an amount paid on or before the due date for filing the return is allowed in the year it relates to. If it is not paid by then, it is added back in the year it is debited and allowed in the year of actual payment. Leave encashment is allowed only on payment, with no due-date relief. Micro and small enterprise dues beyond the section 15 MSMED Act time limit are also allowed only on actual payment, and they sit outside the return due date group. So you must adjust for both: this year's items unpaid by the due date and earlier years' items paid now.

Your job in the exam is not to recall a long list. Take each item the question gives, ask which of the three restrictions applies, and compute the add-back. Always check whether the expense is even a business expense first. If it is not, no other test matters.

Key rules to remember

Business income after disallowances
Business income = Book profit + Disallowed expenses + Unpaid pay-to-claim items of this year − Earlier-year items paid this year
Start from profit after the expenses were debited. Add back only what was debited. Do not add back an item that was never debited.
Cash payment rule
Single payment, or total to one person in one day, above ₹10,000 in cash or non-prescribed mode → 100% of that expenditure disallowed
The limit is ₹35,000 for payments to a transporter for plying, hiring or leasing goods carriages. Account payee cheque or draft, bank electronic clearing and prescribed electronic modes are fine. Test per person per day, not per bill. The rule hits an item only to the extent it is claimed as expenditure. An amount fully disallowed under this rule is not disallowed again for TDS default.
TDS default on resident payee
Disallowance = 30% × expenditure, for specified payments to residents on which tax was deductible but not deducted, or deducted but not deposited by the due date for filing return
This covers only specified payments on which TDS is required, such as interest, commission, fees, rent and contractor payments. If tax is deducted and deposited by the return due date, nothing is disallowed. If tax is deducted in a later year, or deducted in the year but deposited after the return due date, the 30% disallowed is allowed in the year the tax is deposited.
TDS default on non-resident payee
Disallowance = 100% × expenditure, if the sum is chargeable to tax in India and tax deductible was not deducted, or was deducted but not paid on or before the due date for filing return
This covers interest, royalty, fees for technical services and other sums payable to a non-resident, only where the sum is chargeable to tax in India and TDS applies. If the sum is not chargeable to tax in India, this disallowance does not apply. If tax is deducted in a later year, or deducted in the year but paid after the return due date, the amount is allowed in the year the tax is paid.
Payments to related persons
Disallowance = Amount paid − Reasonable amount having regard to fair market value, legitimate business need and benefit derived
Applies where the payee is a specified related person, such as a relative of the proprietor or a director of the company. Only the excess is disallowed.
Allowed on payment basis (due-date group)
Allowed in the year it relates to if paid on or before the due date for filing the return; otherwise allowed in the year of actual payment. Items: taxes, duties, cess, fees; employer contribution to provident, superannuation, gratuity and similar funds; bonus or commission to employees, only where it would not otherwise be payable as profit or dividend; interest on loans from banks and public financial institutions
Employer contributions to funds follow the same rule as taxes, bonus and bank loan interest: they are allowed if paid by the return due date. Bonus or commission is covered by this rule only where it is payable to employees and would not otherwise be payable as profit or dividend. Employees' contributions are a separate rule and need payment by the due date under the relevant law. Mere provision or accrual gives no deduction. Interest converted into a new loan or borrowing is not payment.
Allowed only on actual payment (separate from the due-date group)
Leave encashment: allowed only in the year of actual payment. Sums due to micro and small enterprises: if unpaid beyond the section 15 MSMED Act time limit (15 days where there is no written agreement, or the agreed period, never more than 45 days), allowed only in the year of actual payment
Paying these items by the return due date does not make them allowable in the earlier year. Add them back in the year debited and allow them in the year paid. Micro and small enterprise dues paid within the time limit are not caught by this rule.
Never allowed
Income tax and similar taxes on profits, provisions (other than ascertained liabilities), personal expenses, capital expenditure
Check these first. They are disallowed regardless of how paid.

How to solve Inadmissible Expenses and Disallowances questions

Use this method for any question that gives a profit figure and a list of debited expenses. It keeps you from missing items and lets the examiner award step marks.

  1. 1Write the starting figure: net profit as per the profit and loss account, after all the debits the question mentions.
  2. 2List each expense the question gives. Mark whether it is a business expense at all. Capital, personal, income tax and general provisions are added back at once.
  3. 3For each remaining payment, test cash: was the payment above ₹10,000 to one person in one day by cash or a non-permitted mode? Add up same-day payments to the same person. Use ₹35,000 for goods transporters. If the item is fully disallowed here, do not disallow it again for TDS default.
  4. 4For items not already disallowed, test TDS: was tax deductible on this payment? Was it deducted and deposited by the return due date? If the payee is a resident and the payment is a specified one on which TDS is required, and tax was not deducted, or was deducted but not deposited by the return due date, disallow 30%. If the payee is a non-resident, the sum is chargeable to tax in India and tax was deductible but not deducted, or was deducted but not paid by the return due date, disallow 100%. If the tax is deducted later, or deposited after the due date, the amount disallowed is allowed in the year of deposit.
  5. 5Test related persons: if the payee is a specified related person, compare the payment with fair market value and disallow only the excess.
  6. 6Test pay-to-claim items. For taxes, fund contributions, bonus or commission to employees (only where it would not otherwise be payable as profit or dividend) and bank loan interest, add back those unpaid by the return due date. For leave encashment, add back whatever is unpaid. For micro and small enterprise dues unpaid beyond the section 15 MSMED Act time limit (15 days, or the agreed period up to 45 days), add back whatever is unpaid at year end; the return due date does not help. Then deduct amounts of earlier years that were paid in this year.
  7. 7Add all add-backs and deduct the earlier-year payments from the book profit. Show a short table of item, reason and amount.
  8. 8State the final business income. Mention any assumption, such as TDS being applicable, in one line.

Quickest way: Four-question scan for disallowances

When to use it: Use this under time pressure, in both MCQs and written sums. It works when the question lists many small payments.

  1. Ask Q1: Is it capital, personal, or income tax? If yes, add back 100%. Stop.
  2. Ask Q2: Was it paid in cash above ₹10,000 to one person in a day? If yes, add back 100% and stop for that item, because the same amount cannot be disallowed again for TDS default. If the cash rule does not apply, go to Q3.
  3. Ask Q3: Was TDS due and missed on a specified payment? Resident: 30%. Non-resident: 100%, if tax was not deducted, or was deducted but not paid by the return due date.
  4. Ask Q4: Is it a pay-to-claim item still unpaid by the return due date? Add back. Also look for earlier-year items paid this year and deduct them.
  5. For MCQs, spot the trap: a cash payment of ₹9,000 twice on one day to one person is ₹18,000 and is disallowed; a payment by account payee cheque is never hit by the cash rule.
  6. In the written answer, use a two-column working: item with reason, then amount. Even if one amount is wrong, you score for the right reasoning.

Common mistakes in Inadmissible Expenses and Disallowances

  • Disallowing 100% of a resident payment for TDS default

    Students mix up the resident and non-resident rules, or recall the older rate pattern.

    Fix: Resident payee: 30%. Non-resident payee: 100%. Write the payee's status next to the item before computing.

  • Testing the cash limit bill by bill instead of per person per day

    Students read each payment separately and see it is below ₹10,000.

    Fix: Add all cash payments to the same person on the same day. If the total is above ₹10,000, the whole amount is disallowed, not just the excess.

  • Disallowing only the excess over ₹10,000 in cash

    Students treat the limit like an exemption limit.

    Fix: The limit is a trigger. Once crossed, the entire expenditure is disallowed.

  • Forgetting to allow earlier-year dues that are paid this year

    Students focus on add-backs and treat the adjustment as one-sided.

    Fix: Always check for amounts disallowed earlier for non-payment and paid now. Deduct them in the year of payment.

  • Adding back an expense that was never debited to the profit and loss account

    Students add back every item in the list without checking whether profit already reflects it.

    Fix: Add back only debited items. If the question says an amount is paid out of capital or not recorded, check how it was treated before adjusting.

  • Treating a mere provision or conversion of interest into a new loan as payment

    Students assume that any journal entry counts as payment.

    Fix: Payment means actual discharge of the liability. Provisions, adjustments and conversion of unpaid interest into a loan do not qualify.

Worked examples

Example 1

Anil, a trader, shows net profit of ₹8,00,000 after debiting the following: (a) commission of ₹2,00,000 to a resident agent, on which TDS was deductible but not deducted at all; (b) ₹18,000 paid in cash to one supplier for expenses on a single day; (c) ₹6,000 and ₹7,000 paid in cash on the same day to another supplier for expenses; (d) technical fee of ₹1,00,000 to a non-resident, chargeable to tax in India, with no TDS deducted; (e) income tax of ₹30,000. Compute business income.

Show the solution
  1. Start with net profit: ₹8,00,000.
  2. (a) Resident payee, TDS not deducted: disallow 30% × ₹2,00,000 = ₹60,000.
  3. (b) Cash payment of ₹18,000 to one person in one day exceeds ₹10,000: disallow the full ₹18,000.
  4. (c) Same person, same day: ₹6,000 + ₹7,000 = ₹13,000, above ₹10,000: disallow ₹13,000.
  5. (d) Non-resident payee, sum chargeable to tax in India, tax deductible but not deducted: disallow 100% = ₹1,00,000.
  6. (e) Income tax is never allowed: add back ₹30,000.
  7. Total add-backs = 60,000 + 18,000 + 13,000 + 1,00,000 + 30,000 = ₹2,21,000.
  8. Business income = 8,00,000 + 2,21,000 = ₹10,21,000.

Answer: Business income is ₹10,21,000. Assumption: tax was deductible on items (a) and (d), and none of the cash payments qualifies for an exception.

Example 2

Meera runs a manufacturing business. Her net profit is ₹5,00,000 after debiting: (a) bonus to employees of ₹1,50,000, of which ₹1,00,000 was paid before the due date of filing the return and the balance ₹50,000 was still unpaid on that date; (b) interest of ₹80,000 on a term loan from a bank, unpaid on the return due date. Assume the bonus would not otherwise be payable as profit or dividend. In this tax year she also paid ₹20,000 of interest on a bank loan that was disallowed in an earlier year for non-payment. Compute business income.

Show the solution
  1. Start with net profit: ₹5,00,000.
  2. (a) The bonus is payable to employees and would not otherwise be payable as profit or dividend, so the due-date rule applies. Bonus paid by the return due date is allowed in this year: ₹1,00,000 stays. The balance bonus of ₹50,000 was unpaid on that date, so it is not allowed this year. Add back ₹50,000.
  3. (b) Bank loan interest unpaid on the return due date is allowed only when paid. Add back ₹80,000.
  4. Total add-backs = 50,000 + 80,000 = ₹1,30,000.
  5. Earlier-year interest of ₹20,000 was disallowed then and is paid now, so it is allowed now. Deduct ₹20,000.
  6. Business income = 5,00,000 + 1,30,000 − 20,000 = ₹6,10,000.

Answer: Business income is ₹6,10,000. The ₹50,000 bonus and ₹80,000 interest were unpaid on the return due date, so they become deductible in the year they are actually paid.

Exam tips

  • Read every payee description. Words like 'non-resident', 'agent', 'brother of the proprietor' and 'transporter' decide the rule and the rate.
  • In MCQs, check the payment mode first. 'Account payee cheque' or 'bank transfer' removes the cash rule instantly.
  • Show the add-back table even in a short answer. Step marks go to the reason and the percentage, not only to the final figure.
  • Watch for same-day payments to one person. Examiners often split a payment into two small amounts to test aggregation.
  • When a question says 'paid before the due date of filing return', that item is allowed in the year it relates to. Do not add it back.

Practice questions from Profits and Gains of Business or Profession

Inadmissible Expenses and Disallowances: frequently asked questions

What is the difference between allowable and disallowable expenses in business income?

Allowable expenses are those the Act lets you deduct, such as rent, wages and interest on business loans. Disallowable expenses are those the Act bars or restricts, such as income tax paid, personal costs and cash payments above the limit. You add disallowed items back to the book profit.

How much is disallowed for TDS default under business income?

For specified payments to a resident on which TDS is required, 30% of the expenditure is disallowed if tax was deductible but not deducted, or not deposited by the due date for filing return. For payments to a non-resident, the whole amount is disallowed, but only where the sum is chargeable to tax in India and tax was deductible. If you deduct and deposit the tax later, the amount is allowed in the year of deposit.

Does the cash payment disallowance apply to purchases?

It applies to purchases only to the extent they are claimed as business expenditure. If you pay more than ₹10,000 in a day to one person in cash, the whole amount claimed is disallowed. Certain cases are exempted by the rules, so read the question for such facts. An amount fully disallowed under the cash rule is not disallowed again for TDS default.

Is the ₹10,000 cash limit per bill or per day?

It is tested per person per day. If you pay the same person ₹6,000 and ₹7,000 on one day in cash, the total of ₹13,000 crosses the limit. The whole ₹13,000 is disallowed, not just the ₹3,000 excess.