About TaxCalculator.in
India's trusted tax intelligence platform — CA-grade accuracy, updated for FY 2026-27
Our Mission
TaxCalculator.in was founded with a simple yet powerful mission: to make tax planning accessible, understandable, and actionable for every Indian taxpayer. We believe that informed financial decisions lead to better outcomes, and our platform is designed to empower you with the tools and knowledge you need.
Why Trust TaxCalculator.in
CA-Grade Accuracy
Every calculator is built to Chartered Accountant standards. Our tax computation logic covers all edge cases — rebate u/s 87A, surcharge marginal relief, cess calculations, and slab-wise breakdowns — matching official Income Tax Department examples.
Budget 2026 Updated
All calculators reflect the latest Union Budget 2026-27 changes including revised tax slabs under the new regime, updated TCS rates, extended ITR filing deadlines, and new standard deduction limits of ₹75,000.
Data Privacy First
Your financial data is processed locally on your device. We do not store sensitive income or tax information on our servers. No data is shared with third parties — your privacy is non-negotiable.
24+ Professional Calculators
From Income Tax and Capital Gains to GST, HRA, TDS, and NRI taxation — we offer the most comprehensive suite of free tax calculators in India, each built with professional-grade logic and detailed breakdowns.
Versioned Tax Rules
Our tax rules are maintained as versioned configuration files for each Financial Year (FY 2024-25, FY 2025-26, FY 2026-27). This ensures historical accuracy and allows you to compare tax liability across years.
Transparent Calculations
We don't just give you a number — we show you exactly how your tax is computed, step by step. Every slab, deduction, rebate, and surcharge is broken down so you understand exactly where your money goes.
Our Methodology
Tax accuracy isn't optional — it's our foundation. Here's how we ensure every calculation is correct:
Official Source-Based Rules
All tax rules are sourced directly from the Income Tax Department of India, Finance Act provisions, and CBDT notifications. We reference official gazette notifications for every rule change.
Versioned JSON Configuration
Tax slabs, deduction limits, surcharge rates, and rebate thresholds are stored in structured JSON configuration files — one per Financial Year. This eliminates hardcoded values and makes auditing straightforward.
Tested Against Official Examples
Our calculations are validated against worked examples published by the Income Tax Department and verified by tax professionals. Edge cases like marginal relief on surcharge and rebate phase-outs are specifically tested.
Budget Update Protocol
Within days of each Union Budget announcement, our team reviews the Finance Bill, identifies all changes affecting individual taxpayers, and updates the relevant configuration files. All calculators are re-validated post-update.
About the Calculator — What's Covered
Our income tax calculator implements a comprehensive set of provisions under the Income Tax Act, 1961:
Income Computation
- Salary income (Basic, HRA, Special Allowance, LTA)
- Income from House Property (self-occupied and let-out)
- Capital Gains (short-term and long-term with FIFO matching)
- Income from Other Sources (interest, dividends, gifts)
- Business & Professional Income (44AD/44ADA presumptive)
Deductions & Exemptions
- Section 80C (PPF, ELSS, LIC, EPF) — limit ₹1,50,000
- Section 80D (Health Insurance) — up to ₹1,00,000
- Section 80E (Education Loan Interest)
- Section 24(b) (Home Loan Interest) — limit ₹2,00,000
- HRA Exemption u/s 10(13A)
- Standard Deduction — ₹50,000 (old) / ₹75,000 (new regime)
- Section 80CCD(1B) — NPS additional ₹50,000
Tax Computation
- Old Regime slab rates with full deductions
- New Regime (Section 115BAC) slab rates FY 2026-27
- Rebate u/s 87A — up to ₹60,000 (new regime, income ≤ ₹12L)
- Surcharge: 10% to 37% based on income level
- Marginal relief on surcharge
- Health & Education Cess at 4%
Official References
- Income Tax Department of India
- Central Board of Direct Taxes (CBDT)
- Income Tax Act, 1961 — Sections 2 to 298
- Finance Act, 2025 (Budget 2026-27 amendments)
- CBDT Circulars and Notifications
TaxCalculator.in at a Glance
Income Tax, Capital Gains, GST, HRA, TDS, NRI Tax, Home Loan, and more
In-depth articles on tax planning, deductions, regime comparison, and more
All calculators updated with Union Budget 2026 tax slabs and provisions
No sensitive financial data stored on servers — complete privacy
What We Offer
Accurate Calculations
Our calculators are built using the latest tax rules from the Income Tax Department, updated for FY 2026-27 including Budget 2026 changes.
Tax Intelligence
Beyond basic calculations, we provide personalized recommendations, risk assessments, and optimization strategies to help you save more.
CA-Grade Tools
Our advanced calculators for Capital Gains, GST, and Salary Structuring are built to professional standards with FIFO lot matching, exemption planning, and more.
Free to Use
All our basic calculators are completely free. We believe everyone deserves access to quality tax planning tools.
Our Calculators
- Income Tax Calculator - Complete tax computation with old vs new regime comparison
- Capital Gains Calculator - Equity, property, and gold with FIFO matching and exemption planning
- Take-Home Salary Calculator - CTC breakdown, PF/ESI/PT deductions, and payslip simulation
- GST Calculator - Invoice builder, ITC eligibility, and GSTIN validation
- HRA Calculator - House Rent Allowance exemption computation
- TDS Calculator - Tax Deducted at Source for salary, property, rent, and professional fees
- Home Loan Tax Calculator - Section 24(b) and 80C benefits on home loan
- NRI Tax Calculator - Residency status, DTAA benefits, and India income taxation
- 80C & 80D Calculators - Deduction tracking and optimization
- Tax Optimizer - Personalized recommendations to reduce your tax liability
- Advance Tax Calculator - Quarterly installment computation with due dates
- Presumptive Tax Calculator - Section 44AD/44ADA for businesses and professionals
Our Values
Accuracy
Every calculation is verified against official tax rules and regulations.
Transparency
We show you exactly how each calculation is performed, step by step.
Privacy
Your financial data stays on your device. We don't store sensitive information.
Education
We explain tax concepts in simple language so you can learn while you calculate.
Stay Updated
Tax rules change frequently. Our team continuously monitors updates from the Income Tax Department, CBDT, GST Council, and Finance Ministry to ensure our calculators reflect the latest regulations. All calculators are updated for FY 2026-27 with Budget 2026 tax rates and provisions.