JoinCalc is a free collection of financial calculators
for US and UK users — no sign-up, no ads interruption,
all calculations happen in your browser.
Includes:
🏛️ Stamp Duty Calculator (UK 2026)
📊 Capital Gains Tax (US & UK)
🏦 Inheritance Tax (UK IHT & US Estate Tax)
🔥 FIRE Calculator
🔑 Mortgage Affordability
🧓 401k & UK Pension Calculator
💼 Salary Take-Home (US, UK, CA, AU)
📋 Loan Calculator
💰 Dividend Income
📈 Compound Interest
All rates updated for 2026.
