How to Calculate Income Tax from All 5 Heads of Income
The Indian Income Tax Act, 1961 classifies all taxable income into five distinct heads: Income from Salary, Income from House Property, Profits and Gains from Business or Profession, Capital Gains, and Income from Other Sources. Understanding how each head contributes to your total tax liability is essential for accurate tax planning and filing. This comprehensive calculator brings all five heads together in a single tool, allowing you to see the complete picture of your tax obligation.
The Five Heads of Income Explained
Income from Salary includes your basic salary, dearness allowance, house rent allowance, special allowances, leave travel allowance, bonuses, and all other compensation received from your employer. For most salaried individuals, this constitutes the primary head of income. The salary head allows standard deduction (Rs 75,000 under new regime, Rs 50,000 under old regime) and professional tax deduction under both regimes.
Income from House Property covers rental income from properties you own. Even if you own a property but do not rent it out, a deemed rental value (based on municipal valuation or fair market rent) may apply. Self-occupied property has nil Gross Annual Value, but you can still claim home loan interest deduction up to Rs 2,00,000 under Section 24(b). For let-out properties, a 30% standard deduction on Net Annual Value and full home loan interest deduction are available.
Profits and Gains from Business or Profession applies to self-employed individuals, freelancers, and business owners. This head allows deduction of all legitimate business expenses incurred wholly and exclusively for the purpose of business. Professionals with gross receipts up to Rs 75 lakh can opt for the presumptive taxation scheme under Section 44ADA, declaring 50% of receipts as income.
Capital Gains arise from the sale of capital assets such as equity shares, mutual funds, real estate, gold, and other investments. Capital gains are classified as short-term or long-term based on holding period, with different tax rates applicable. Post July 2024, equity LTCG is taxed at 12.5% (above Rs 1.25 lakh exemption) and equity STCG at 20%.
Income from Other Sources is the residual head covering income not falling under any other head. This includes fixed deposit interest, savings account interest (above Rs 10,000 exemption under Section 80TTA), dividends, lottery winnings, gifts above Rs 50,000, and any other income not specifically exempted.
Old Regime vs New Regime: Making the Right Choice
The new tax regime (Section 115BAC) offers lower slab rates but eliminates most deductions and exemptions. The old regime retains all deductions under Sections 80C, 80D, 80E, 80G, 80TTA, and exemptions like HRA and LTA, but has higher base rates. The breakeven point depends on your total deductions: generally, if your total deductions (80C + 80D + HRA + home loan interest + other) exceed Rs 3.75 to Rs 4.5 lakh (depending on income level), the old regime may be more beneficial. Use this calculator to determine the exact comparison for your specific profile.
Tax Planning Strategies
Effective tax planning involves maximizing legitimate deductions under the old regime or ensuring your income structure is optimized for the new regime. Key strategies include: maximizing Section 80C through EPF, PPF, ELSS, and life insurance; claiming full Section 80D for health insurance premiums; utilizing HRA exemption if paying rent in a metro city; contributing to NPS for additional Rs 50,000 deduction under 80CCD(1B) in the old regime; and structuring salary components to include tax-free allowances and reimbursements.
Important Deadlines and Filing
For FY 2025-26 (AY 2026-27), the due date for filing income tax returns is 31 July 2026 for individuals without audit requirements, and 31 October 2026 for those requiring tax audit. Advance tax installments are due on 15 June, 15 September, 15 December, and 15 March for taxpayers with tax liability exceeding Rs 10,000. Late filing attracts interest under Sections 234A and 234B, plus a late filing fee under Section 234F (Rs 5,000 for returns filed after the due date, reduced to Rs 1,000 if total income is below Rs 5 lakh).
Disclaimer
This calculator provides an estimate of income tax liability for Indian resident individuals for FY 2025-26. It does not account for special provisions applicable to senior citizens, HUFs, NRIs, or specific income categories like lottery winnings or horse racing. Capital gains computation here is simplified; for detailed capital gains calculation, use our dedicated Capital Gains Calculator. Consult a qualified Chartered Accountant for professional advice.