Income Tax Basics for B.Com Students — Key Concepts with Examples

For B.Com Students | Direct Taxation Fundamentals

Income tax is a core subject in many B.Com programmes and a must-know skill for accounting jobs. Before you learn computation, you must understand the basic terms and structure of the Income-tax Act. This article explains the fundamentals in simple language with examples.

Important: Tax rates, slabs, limits and deductions change through the annual Finance Act. Always check the rules applicable to the assessment year in your syllabus or on the official Income Tax Department website before using any figure in an exam or a return.

1. What Is Income Tax?

Income tax is a direct tax levied by the Central Government on the income of persons. In India it has long been governed by the Income-tax Act, 1961, together with Income-tax Rules and the annual Finance Act. Newer legislation may replace or revise this framework, so always check which law applies to your syllabus and the relevant year.

2. Key Terms You Must Know

Example: Income earned between 1 April 2025 and 31 March 2026 is the income of PY 2025-26, assessed in AY 2026-27.

3. Residential Status

Tax liability depends on residential status, not citizenship. For an individual, the main categories are:

• Resident and Ordinarily Resident (ROR)
• Resident but Not Ordinarily Resident (RNOR)
• Non-Resident (NR)

The basic test looks at the number of days the individual stayed in India in the previous year and in earlier years. There are additional conditions and exceptions (for example, for Indian citizens leaving India for employment). Learn the exact conditions from your current syllabus, as they have been amended over time.

4. Five Heads of Income

All income is classified under five heads:

Simple Example

Riya has:
– Salary (taxable): ₹5,40,000
– Interest on fixed deposit: ₹20,000
– Rent received (after allowable deductions under the house property head): ₹60,000

Gross Total Income = 5,40,000 + 20,000 + 60,000 = ₹6,20,000

Her tax liability then depends on the tax regime she chooses, eligible deductions and the slab rates applicable for that year.

5. Old Regime vs New Regime

Individuals can generally choose between the old tax regime, which allows many deductions and exemptions, and the new tax regime under section 115BAC, which offers lower slab rates but allows fewer deductions. The new regime has been the default for individuals in recent years, while the option to choose the old regime is subject to conditions.

Check the latest slabs and rules for the relevant assessment year.

6. Deductions (Chapter VI-A) — Common Examples

Under the old regime, common deductions have included:

• Section 80C: life insurance premium, PPF, ELSS, tuition payments for children, principal repayment of a housing loan (within the prescribed limit)
• Section 80D: health insurance premium
• Section 80TTA: interest on savings bank accounts (within limits)

Limits are revised from time to time, so verify the current figures.

7. Tax Deducted at Source (TDS)

TDS means the payer deducts tax before making certain payments and deposits it with the Government. Common examples include salary, interest, rent above prescribed limits, professional fees and contractor payments.

The deducted amount appears in the payee’s Form 26AS / Annual Information Statement and can be claimed as credit while filing the return.

Journal entry for TDS on professional fees (example): fees ₹50,000; TDS assumed at 10%.

Professional Fees A/c Dr. ₹50,000
To TDS Payable A/c ₹5,000
To Bank A/c ₹45,000

When TDS is deposited:

TDS Payable A/c Dr. ₹5,000
To Bank A/c ₹5,000

8. Return Filing — Basic Idea

Taxpayers file an Income Tax Return (ITR) on the e-filing portal. Different ITR forms apply to different categories of taxpayers and income. Due dates and forms are notified each year.

9. Why Income Tax Skills Matter for Jobs

Accounts executives and assistants handle TDS deduction, TDS returns, salary computation and reconciliation with Form 26AS. Practical knowledge of these tasks makes freshers much more employable. Read Jobs After B.Com for Freshers to see where these skills are used, and explore our Accounts Expert programme for practical training.

10. Practice Questions

1. Define previous year and assessment year with an example.
2. Name the five heads of income and give one example of each.
3. Distinguish between ROR, RNOR and NR in general terms.
4. What is TDS? Pass a journal entry for rent paid after TDS.
5. State two differences between the old and new tax regimes.

Frequently Asked Questions

Is income tax part of B.Com Semester 1?

It depends on your university and programme. Many B.Com programmes cover taxation in later semesters. Check your own syllabus.

Do I need to memorise tax slabs?

Learn the slabs for the assessment year in your syllabus. In practice, accountants always check the current year’s rates.

What is the difference between income tax and GST?

Income tax is a direct tax on income. GST is an indirect tax on the supply of goods and services. Read our GST Notes for B.Com Students.

Where can I practise tax calculations?

Use Skillshort’s free Commerce & Accounting Calculators for quick checks.

Final Thoughts

Master the basic structure — PY and AY, residential status, five heads, deductions and TDS — before diving into complex computations. With strong fundamentals, every later tax chapter becomes easier.