Free tax tools
Quick, accurate GST and VAT tools for 88 countries — Fin does the maths so you don’t have to.
Total including GST
$110.00
- Price before GST
- $100.00
- GST (10%)
- $10.00
- Total including GST
- $110.00
Fin adds 10% on top of the price. Indicative only — general information, not tax advice.
All tools
Calculators
GST Calculator
Add or remove GST/VAT on any amount, with the formula shown every time.
BAS Calculator (AU)
Your quarterly GST position — 1A, 1B and the net amount payable, worked out for you.
Income Tax & Take-Home
Your income tax, Medicare levy and take-home pay on any salary.
UK Income Tax & Take-Home
Your UK income tax, National Insurance and take-home pay — England, Wales & NI rates.
India Income Tax & Take-Home
Your India income tax on the new regime — the ₹75k standard deduction, the ₹12L rebate and 4% cess, with take-home.
US Income Tax & Take-Home
Your US federal income tax, Social Security and Medicare — single filer, with take-home pay.
Finland Income Tax & Tax Card
Your Finnish take-home pay and tax-card percentage (veroprosentti) — any municipality, church tax, YLE tax and contributions.
HECS/HELP Repayment
Your compulsory study-loan repayment on the marginal system, and what a pay rise really adds.
Superannuation (AU)
Your Super Guarantee, how much concessional cap is left, and whether Division 293 catches you.
Capital Gains Tax (AU)
Sold an asset? Fin works out your CGT — the 50% discount and your losses, at your marginal rate.
Crypto Tax (AU)
Sold or swapped crypto? Fin works out the CGT — same 50% discount, at your marginal rate.
Business Space at Home (AU)
A desk or a place of business? The deductions each year against the CGT on that share when you sell.
Company Tax Calculator
See the tax on your company’s profit across AU, UK, US, Canada and India — every rate sourced.
Reference
Put a calculator on your own site
Every calculator below is free to embed. Each page has the paste-ready code and what you can change — Fin keeps the rates current for you.
- Embed the GST calculator
- Embed the BAS calculator
- Embed the Income tax
- Embed the UK income tax
- Embed the India income tax
- Embed the US income tax
- Embed the Finland income tax
- Embed the HECS repayment
- Embed the Superannuation
- Embed the Capital gains tax
- Embed the Crypto tax
- Embed the Business space at home
- Embed the Company tax
Tool questions, answered
Are the AI2Fin tax calculators free to use?
Yes — every calculator on this page is free, with no sign-up, no card and no usage limits. They exist so the maths is quick; the paid product is the automation that does this on every transaction for you.
Which countries do the GST and VAT tools cover?
The tools cover 88 countries, including Australia (GST 10%), the UK (VAT 20%), India, Canada, New Zealand and the EU member states — each with its standard and reduced rates, local tax name and filing structure.
Are the tax rates in these tools up to date?
Rates are sourced from each country’s published government tables and reviewed against the current financial year. Every calculator states the rate it used in the result, so you can verify the figure independently.
Is this tax advice?
No — the tools compute indicative figures from published rates and are general information only. For decisions about your own situation, check with the tax authority or a registered adviser.
Can I embed these calculators on my own site?
Yes — each calculator has a free embed version you can drop into your site with a single iframe snippet. Open any tool and use its “Embed” option to copy the code.
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