About this tax calculator
India income tax calculator for old vs new tax regime comparison in 2026
The Free Calculators India Income Tax Calculator 2026 helps taxpayers compare estimated income tax under the old and new tax regimes for FY 2025-26 / AY 2026-27. The new regime generally has lower slab rates and fewer deductions, while the old regime allows many deductions and exemptions such as eligible investments, HRA, home loan interest and health insurance deductions.
This calculator is useful for salaried employees, pensioners, consultants, students, tax learners and individuals planning their tax-saving investments. It estimates tax under both regimes and highlights which option may result in lower tax based on the values entered.
Old regime versus new regime
Under the old tax regime, taxpayers can claim deductions and exemptions but slab rates are generally higher after the basic exemption limit. Under the new regime, slab rates are generally lower and the basic exemption limit is higher, but most deductions are not available except limited permitted deductions.
The right choice depends on the taxpayer’s income, eligible deductions, age category, salary structure and residential status. A person with high deductions may still benefit from the old regime. A person with limited deductions may often benefit from the new regime.
FY 2025-26 / AY 2026-27 tax calculation
For FY 2025-26 / AY 2026-27, the new regime slabs start with nil tax up to ₹4 lakh and go up to 30% above ₹24 lakh. The old regime keeps age-based basic exemption limits and higher slabs. This calculator applies slab tax, Section 87A rebate where eligible, surcharge where applicable and 4% Health and Education Cess.
The result section shows estimated old regime tax, new regime tax, monthly tax, net income, taxable income, rebate, surcharge and cess. It also gives a simple recommendation based on which regime produces lower estimated tax.
Important limitation
This calculator is for general estimation only. It does not handle every special income category, capital gains, lottery income, crypto tax, agricultural income, foreign income, house property loss restrictions, AMT, double taxation relief, TDS mismatch, advance tax interest, business audit cases or every deduction rule.
For final ITR filing, regime selection, tax audit cases, capital gains, business income or legal interpretation, users should verify from official Income Tax Department guidance or consult a qualified tax professional.
Why Free Calculators is useful for tax planning
Free Calculators is designed to provide simple online calculators for finance, tax, salary and everyday planning. An old vs new regime calculator is useful because tax-saving decisions can change depending on deductions and income level.
This page includes SEO metadata, structured data, FAQ schema, responsive calculator design and detailed explanatory content. The same structure can be used for more India tools such as salary tax calculator, HRA calculator, 80C calculator, TDS calculator and capital gains tax calculator.