Tax calculators
Estimate what you owe — income, capital gains, crypto, and sales tax.
Tax is where small misunderstandings cost real money. These calculators give you a clear estimate using current official brackets — your annual income tax with both effective and marginal rates, the capital gains tax on an investment sale, and the sales tax, VAT, or GST on a purchase. Every figure traces back to the relevant authority — the IRS, HMRC, CRA, or ATO.
Because tax systems differ by country, each tool localizes the rules: US federal brackets, UK income tax and National Insurance, Canadian federal rates with CPP/EI, and Australian rates including the Medicare levy. The results are estimates to help you plan, not a substitute for filing or professional advice.
To understand the numbers behind the tools, read income tax rates compared across four countries, capital gains tax explained, and legal ways to reduce your CGT bill.
3 tax calculators
Guides on tax
Income Tax Rates 2025: US, UK, Canada & Australia
Current tax brackets across four countries, side by side.
10 min read
Capital Gains Tax Explained
Rates, holding periods, and strategies to reduce your CGT bill.
9 min read
How to Reduce Capital Gains Tax
9 legal strategies — loss harvesting, ISA/Roth sheltering, timing, and more.
9 min read
Marginal vs Effective Tax Rate: What's the Difference?
The two tax rates everyone confuses, why moving into a higher bracket never cuts your take-home, and how to read each.
7 min read
Popular scenarios
Pre-calculated answers for the most common questions.