Published Aug 13, 2025 4 Min Read

Introduction

Understanding tax laws is essential for individuals and businesses to manage finances effectively. One such crucial provision is Section 37 of the Income Tax Act, which governs the deductibility of certain business expenses. This section plays a vital role in helping businesses reduce taxable income while adhering to legal and ethical standards. Whether you are a small business owner or a financial professional, knowing what is deductible and what is not can significantly impact your bottom line.

Starting small with financial planning can lead to long-term success. 

What is Section 37 of the Income Tax Act?

Section 37 of the Income Tax Act is a provision that allows businesses to claim deductions for expenses incurred wholly and exclusively for the purpose of their business or profession. These expenses must not be of a personal nature, capital expenditure, or covered under other specific sections of the Income Tax Act.

This section ensures that legitimate business-related expenses are deducted from taxable income, thus reducing the overall tax liability. However, it also specifies certain restrictions to prevent misuse, such as disallowing expenses incurred for illegal purposes.

By optimising your tax planning, you can allocate more funds toward wealth creation. 

Section 37(1) Explained: Restrictions and Exceptions

Expenses prohibited by law under Section 37(1)

Section 37(1) explicitly disallows any expense incurred for purposes that are unlawful or prohibited by law. For instance, fines, penalties, or bribes paid to government officials cannot be claimed as deductions under this section. This ensures that businesses operate within the boundaries of legality and ethics.

Why CSR expenses are not deductible

Corporate Social Responsibility (CSR) expenses, though mandatory for certain companies, are not deductible under Section 37. The rationale is that these expenses are not incurred exclusively for the business but rather for societal benefit. However, businesses can still fulfil their CSR obligations while factoring in their non-deductibility when planning finances.

Conditions to Claim Deductions Under Section 37

To claim deductions under Section 37, the following conditions must be met:

  1. The expense must be incurred wholly and exclusively for business purposes.
  2. It should not be a personal or capital expense.
  3. The expense must not fall under other specific sections of the Income Tax Act.
  4. The expenditure must be legal and not against public policy.

By meeting these criteria, businesses can optimise their tax liabilities while staying compliant with tax laws.

List of Expenses Allowed as Deduction Under Section 37

The following are examples of expenses that may be deducted under Section 37:

  • Office rent and utilities.
  • Advertising and marketing costs.
  • Employee training and development expenses.
  • Professional fees paid to consultants, lawyers, or accountants.
  • Travel and accommodation expenses for business purposes.

These deductions can help businesses manage operational costs efficiently while reducing taxable income.

List of Expenses Disallowed as Deduction Under Section 37

Certain expenses are explicitly disallowed under Section 37, including:

  • Fines or penalties paid for violating laws.
  • Bribes or illegal payments.
  • CSR expenses, as they are not incurred for business purposes.
  • Capital expenditures such as the purchase of property or equipment.
  • Personal expenses unrelated to the business.

By understanding these disallowed expenses, businesses can avoid non-compliance and penalties.

How to Claim Deductions Under Section 37?

Claiming deductions under Section 37 involves the following steps:

  1. Maintain proper documentation for all business-related expenses, including invoices and receipts.
  2. Ensure that the expenses meet the criteria specified under Section 37.
  3. Include these expenses while preparing your income tax returns.
  4. Consult a tax professional for accurate computation and filing.

Efficient tax planning allows you to allocate more resources toward investments. 

Practical Examples of Allowed and Disallowed Expenses

Allowed expenses:

  1. A manufacturing company incurs Rs. 5 lakh on advertising campaigns to promote its products. This expense is deductible under Section 37.
  2. A business owner pays Rs. 2 lakh to a consultant for professional advice. This qualifies as a deduction.

Disallowed expenses:

  1. A company pays a Rs. 50,000 fine for violating environmental regulations. This cannot be claimed as a deduction.
  2. Rs. 1 lakh spent on personal travel by the business owner is not deductible under Section 37.

Section 37 and Employer-Employee (Group Health) Insurance Deductions

Group health insurance premiums paid by employers for their employees are generally deductible under Section 37. This is because such expenses are incurred wholly and exclusively for the welfare of employees, which is integral to the business.

Providing group health insurance not only ensures employee well-being but also demonstrates a company’s commitment to its workforce. Businesses can use this deduction to optimise tax liabilities while maintaining employee satisfaction.

Conclusion

Section 37 of the Income Tax Act is a pivotal provision for businesses aiming to optimise their tax liabilities while adhering to legal and ethical standards. By understanding the nuances of this section, businesses can make informed financial decisions and avoid penalties.

Frequently Asked Questions

Can professional fees be claimed under Section 37?

Yes, professional fees paid to consultants, lawyers, or accountants for business purposes are deductible under Section 37.

Are CSR expenses fully non-deductible under Section 37?

Section 37(1) expressly excludes Corporate Social Responsibility (CSR) expenditure from being claimed as a business deduction, clarifying that such spending is not regarded as incurred for business purposes. In effect, mandatory CSR outlays are treated as an application of income rather than a deductible business cost.

Are CSR expenses fully non-deductible under Section 37?

Yes, CSR expenses are not deductible under Section 37 as they are not incurred exclusively for business purposes.

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