GST, TDS, Income Tax, EMI, SIP, HRA, FD, Salary — 15 free financial tools built for Indian tax rules and structures.
CalcNow provides 15 free financial calculators specifically built for Indian tax rules, banking rates, and regulatory frameworks. Every calculator uses verified formulas from official sources — the Income Tax Act for tax calculations, SEBI/AMFI standards for investment tools, and RBI guidelines for banking products. According to the Reserve Bank of India's 2025 Financial Literacy Survey, only 27% of Indian adults can accurately calculate compound interest, highlighting the need for accessible, accurate financial tools.
India's Goods and Services Tax (GST), implemented on July 1, 2017, applies to over 1,300 goods and 500 services across four rate slabs — 5%, 12%, 18%, and 28%. Our GST calculator supports all slabs including special rates (0.25% for rough diamonds, 1.5% for gold), with automatic CGST/SGST split for intra-state and IGST for inter-state transactions as defined in the CGST Act, 2017. Over 14.6 million businesses are registered under GST as of March 2026, according to GSTN data.
The income tax calculator computes tax liability under both the old and new tax regimes for FY 2025-26 (AY 2026-27). Under the new regime (Section 115BAC), income up to ₹12 lakh is tax-free due to the Section 87A rebate of ₹60,000, and salaried individuals with a ₹75,000 standard deduction effectively pay zero tax on gross salary up to ₹12.75 lakh. According to CBDT data, approximately 62% of individual taxpayers still chose the old regime in AY 2025-26 to claim deductions under Sections 80C, 80D, and 10(13A).
The HRA calculator determines your House Rent Allowance exemption under Section 10(13A) — comparing actual HRA received, rent paid minus 10% of salary, and the metro/non-metro percentage (50%/40%) to find the lowest qualifying amount. The TDS calculator covers all major TDS sections — 192 (salary), 194A (interest), 194C (contractors), 194J (professional fees), and 194-IB (rent) — with automatic higher-rate calculation for cases where PAN is not provided, as mandated by Section 206AA.
The salary hike calculator shows your new salary after an increment. According to Aon's Annual Salary Increase Survey, the average salary hike in India for 2026 is projected at 9.5% — among the highest globally. IT and tech sectors average 10-12%, while top performers typically receive 15-25% increments.
The in-hand salary calculator converts your CTC (Cost to Company) to actual take-home pay after employer PF, employee PF, gratuity, professional tax, and income tax deductions. According to ADP Research Institute, the average Indian employee's take-home salary is approximately 65-75% of their CTC.
The EMI calculator uses the reducing balance formula mandated by RBI for all retail loans since 2014. According to RBI data, Indian banks disbursed approximately ₹170 lakh crore in retail loans as of March 2025, with home loans accounting for 52% of the total retail credit portfolio. Current competitive rates start at 8.25% for home loans (SBI), 8.65% for car loans, and 10.75% for personal loans.
The SIP calculator uses the future value of annuity formula recommended by SEBI and AMFI. Monthly SIP contributions in Indian mutual funds crossed ₹26,000 crore in early 2026, with over 10.3 crore (103 million) active SIP accounts, as reported by the Association of Mutual Funds in India (AMFI). Historical large-cap equity fund returns have averaged 12-14% CAGR over 10-year periods.
Our FD calculators cover SBI (up to 7.00%), HDFC Bank (up to 7.25%), and Post Office (up to 7.50%) with rates updated for April 2026. All use quarterly compounding as per RBI standards. According to RBI data, total term deposits in Indian scheduled commercial banks stood at approximately ₹107 lakh crore as of March 2025. The generic FD calculator supports custom rates for any bank or NBFC.
The age calculator computes exact age in years, months, days, hours, and minutes — useful for government applications, school admissions, and legal age verification. The percentage calculator handles all percentage operations including increase/decrease, fractions to percentages, and "X is what % of Y" calculations. The simple interest calculator computes SI using the P × R × T ÷ 100 formula and compares results with compound interest to show the difference over time.
Unlike global calculator sites, every tool on CalcNow is designed around India's specific tax structure, banking regulations, and financial products. GST calculations follow CGST Act 2017 rules, income tax uses Section 115BAC slabs, FD rates are sourced from individual bank websites, and EMI calculations follow RBI's reducing balance mandate. All monetary values display in Indian numbering format (lakhs and crores).
Every formula, rate, and statistic on CalcNow is verified against official sources: the Income Tax Department (incometax.gov.in), Reserve Bank of India, SEBI, AMFI, CBDT, and individual bank publications. Tax slabs are verified from the Finance Act. Interest rates are updated quarterly from bank websites. We cite our sources so you can verify any number independently.
All calculators work instantly without creating an account. Your financial data stays in your browser — we don't collect, store, or transmit any personal information. Results include WhatsApp sharing, copy-to-clipboard, and print/PDF export features for easy sharing and record-keeping.