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📊 Tax Calculator

Calculate India income tax (Old/New Regime, FY 2024-25) and US Federal tax. Slab breakdown, effective rate, TDS, regime comparison. Free, browser-based.

Calculate your income tax instantly for India (Old/New regime) and USA. Get slab-wise breakdown, effective tax rate, and TDS estimate.

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AWE-OS Income Tax Calculator is a free online tool for Indian taxpayers to estimate their income tax liability for FY 2024-25 (Assessment Year 2025-26) under both the New Tax Regime (default regime as per Finance Act 2023) and the Old Tax Regime with deductions. The New Tax Regime offers lower tax rates but removes most deductions (HRA, 80C, 80D, home loan interest). The Old Tax Regime has higher base rates but allows deductions including Standard Deduction of ₹50,000, HRA exemption, Section 80C investments up to ₹1.5 lakh, Section 80D health insurance premium up to ₹25,000, and home loan interest under Section 24(b) up to ₹2 lakh. The calculator compares the tax payable under both regimes side by side, helping you decide which regime results in lower tax for your specific income and deduction profile. It incorporates the applicable surcharge for incomes above ₹50 lakh and ₹1 crore, and the 4% Health and Education Cess on total tax.

Key Features

  • Side-by-side comparison of tax under New Tax Regime vs Old Tax Regime for FY 2024-25
  • New regime slabs: 0% up to ₹3L, 5% from ₹3L–₹7L, 10% from ₹7L–₹10L, 15% from ₹10L–₹12L, 20% from ₹12L–₹15L, 30% above ₹15L
  • Old regime deductions: Standard Deduction ₹50,000, Section 80C up to ₹1.5L, Section 80D up to ₹25,000, HRA, and home loan interest Section 24(b)
  • Surcharge calculation for high incomes: 10% for ₹50L–₹1Cr, 15% for ₹1Cr–₹2Cr, and 25% for ₹2Cr–₹5Cr
  • 4% Health and Education Cess automatically added on total tax and surcharge
  • Rebate under Section 87A for incomes up to ₹7 lakh under new regime (full tax rebate) and ₹5 lakh under old regime

Who Should Use This Tool

  • Salaried employees comparing New vs Old tax regime before submitting their investment declaration to HR at the start of the financial year
  • Freelancers and self-employed professionals with business income calculating advance tax liability under Section 208 for quarterly payment
  • NRIs with Indian income sources (rent, dividends, capital gains) understanding their Indian tax obligation for the financial year
  • Students and first-time earners who have just entered the workforce understanding their tax liability and planning investments for Section 80C deductions

How to Use Tax Calculator

  1. Enter your gross annual income (CTC for salaried, or total business income for self-employed) in Indian Rupees (₹)
  2. Under Old Regime, enter your deductions: HRA received, actual HRA paid, city type (metro/non-metro), Section 80C investments (PPF, ELSS, LIC, home loan principal), Section 80D health insurance premiums, and home loan interest
  3. The calculator automatically computes taxable income, tax payable, surcharge, cess, and net tax under both regimes
  4. Compare the two columns side by side — the regime with lower net tax is highlighted as the recommended choice for your income profile
  5. Use the result to make your regime declaration to your employer (Form 10-IEA if choosing old regime) at the start of the financial year

Why Choose AWE-OS Tax Calculator

  • New vs Old regime comparison in a single view — the most important decision Indian taxpayers face each year, answered instantly without separate spreadsheets or manual calculations
  • Accurate surcharge and marginal relief calculation for high-income individuals above ₹50 lakh — most basic tax calculators ignore the surcharge which can significantly affect effective tax rates
  • Section 87A rebate correctly applied for both regimes (₹25,000 rebate under new regime for income up to ₹7L; ₹12,500 under old regime for income up to ₹5L)

Frequently Asked Questions

What are the income tax slabs under the New Tax Regime for FY 2024-25?

Under the New Tax Regime (default from FY 2023-24), the tax slabs are: Income up to ₹3 lakh — Nil; ₹3 lakh to ₹7 lakh — 5%; ₹7 lakh to ₹10 lakh — 10%; ₹10 lakh to ₹12 lakh — 15%; ₹12 lakh to ₹15 lakh — 20%; above ₹15 lakh — 30%. A Standard Deduction of ₹50,000 (₹75,000 from FY 2024-25 as per Budget 2024) is available under the New Regime for salaried employees. Section 87A rebate of ₹25,000 makes income up to ₹7 lakh effectively tax-free under the new regime.

Should I choose New Tax Regime or Old Tax Regime?

The New Regime is generally better if your total deductions under the old regime are less than the break-even threshold — approximately ₹3.75 lakh for incomes around ₹15 lakh. If your Section 80C investments (₹1.5L), health insurance (₹25,000), home loan interest (₹2L), and HRA exemption together exceed ₹3.75 lakh, the Old Regime may result in lower tax. The easiest approach is to use the AWE-OS tax calculator to compute both and compare the net tax payable with your actual deductions filled in.

What is the Indian financial year and when is the ITR filing deadline?

India's financial year (FY) runs from April 1st to March 31st. FY 2024-25 covers April 1, 2024 to March 31, 2025. The corresponding Assessment Year (AY) is AY 2025-26. The deadline for filing Income Tax Return (ITR) for salaried individuals is typically July 31st of the Assessment Year (July 31, 2025 for AY 2025-26). For businesses requiring audit, the deadline is October 31st. Revised returns can be filed up to December 31st of the assessment year. Late filing attracts a fee of ₹5,000 (₹1,000 if income is below ₹5 lakh) under Section 234F.

Tips & Best Practices

  • Run both Old Regime and New Regime calculations with your actual deductions before making your regime declaration to your employer — this takes 5 minutes with the calculator and can save thousands of rupees by choosing correctly.
  • For the Old Regime, ensure you include all eligible deductions: Standard Deduction (₹50,000 for salaried), HRA exemption, 80C investments (PPF, ELSS, LIC, home loan principal), 80D health insurance, and Section 24(b) home loan interest up to ₹2 lakh.
  • If your total Old Regime deductions are below ₹3.5 lakh (approximate break-even for a ₹15 lakh income), the New Regime is likely more beneficial — the exact break-even depends on your specific income level.
  • For freelancers and self-employed professionals, include business expenses allowed under Section 44ADA (presumptive taxation scheme at 50% of gross receipts as taxable income) before calculating tax.
  • Pay advance tax by December 15 and March 15 if your net tax liability exceeds ₹10,000 for the year — failing to pay advance tax on time attracts interest under Sections 234B and 234C at 1% per month.
  • Use the calculator at the start of the financial year (April) to plan your investment declarations to HR rather than scrambling in February when most employers close the investment declaration cycle.

Common Mistakes to Avoid

  • Claiming HRA exemption under the Old Regime without keeping rent receipts and the landlord's PAN (for annual rent above ₹1 lakh) — the HRA exemption is subject to employer and ITD scrutiny, and missing documents can lead to tax demand notices.
  • Forgetting to include all sources of income — interest from savings accounts (taxable above ₹10,000 per year under Section 80TTA), fixed deposit interest, rental income, and capital gains must all be included in gross income.
  • Assuming you can switch between New and Old Regime freely every year — salaried individuals can switch regime every year when filing ITR; business income earners can switch only once.
  • Missing the Section 87A rebate — if your taxable income (after all deductions under Old Regime) is at or below ₹5 lakh, or below ₹7 lakh under the New Regime, the full tax liability is rebated to zero. Many taxpayers miss this.
  • Not accounting for surcharge — the calculator includes surcharge, but many taxpayers with incomes approaching ₹50 lakh or ₹1 crore are unaware of the significant additional tax liability from surcharge and marginal relief.
  • Treating the calculator's output as a final tax return — the calculator gives a reliable estimate, but your actual ITR may differ based on exact deduction documentation, advance tax already paid, TDS credits, and any carryforward losses.

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