Free money and tax calculators

For saving and investing: simple and compound interest, CAGR, ROI with an annualised rate, the average price of shares bought at different prices, inflation from US CPI-U series CUUR0000SA0 through September 2026, a retirement plan from today's expenses, and zakat on savings, gold and silver.

For pay and tax: India's income tax under both regimes and HRA; CTC to in-hand with provident fund on the ₹25,000 ceiling from 17 September 2026 and the professional tax you enter; gratuity under the Code on Social Security, 2020, in force from 21 November 2025, including fixed-term employees after one year and the ₹20 lakh ceiling; PPF at 7.1% for October to December 2026; UK take-home pay for 2026/27 with income tax, National Insurance and student loans; SDLT for England and Northern Ireland from 1 April 2025; and Philippine SSS on the January 2025 schedule, PhilHealth at 5% and Pag-IBIG under Circular No. 460. Each of these pages prints the date its rules were checked.

For business: break-even units and sales, profit margin and markup, sales tax and VAT, and the price of gold jewellery with making charges and 3% GST under heading 7113. The IBAN checker uses SWIFT IBAN Registry release 103 (September 2026), and the GSTIN checker tests the state code, PAN layout and check character.