About us
Making property tax transparent for everyone
Global Property Tax Calculator is a free tool that gives buyers, investors, and advisers instant, accurate estimates of stamp duty and property transfer tax — across five countries and twelve-plus jurisdictions, with no login and no paywall.
Our mission
Stamp duty and property transfer taxes are often the largest upfront cost in a property purchase — yet they are routinely the last thing buyers discover, sometimes only at the solicitor's office days before completion. That information gap costs people money: deals fall through when buyers cannot fund the tax bill, investors misjudge returns, and first-time buyers exhaust their savings without accounting for the levy.
We built this tool to close that gap. Our mission is simple: give every property buyer in the world access to a fast, accurate, and free estimate of the tax they will owe — early enough that it actually informs their decision.
We are not a law firm, an estate agent, or a mortgage broker. We have no financial interest in what you buy, where you buy it, or how you finance it. Our only interest is that you walk into a transaction with the right numbers.
By the numbers
- 5
- Countries covered
- 12+
- Tax jurisdictions
- 100%
- Free to use
- 0
- Data stored about you
What we stand for
Accuracy above all
Every rate, threshold, and relief is sourced directly from government legislation or official gazettes. We cite the source and rule version on every result so you can verify it yourself.
Speed and simplicity
Property tax rules are complex. Our job is to absorb that complexity so you get an instant, correct answer without reading pages of government guidance.
Global coverage
Property buyers exist in every country. We are systematically expanding coverage so that every buyer, wherever they are in the world, has access to a reliable tax estimate.
Transparency
We show our working. Every result includes a slab-by-slab breakdown, the effective rate, the rule version used, and a link to the original government source.
Accessible to everyone
No login. No paywall. No upsell. We believe that basic financial clarity around a property purchase should be freely available to all buyers, not just those with expensive advisers.
Always current
Tax rules change after every budget. We update our rate tables as soon as changes are announced and clearly mark historic rule versions so past calculations remain traceable.
How the calculator works
Property transfer taxes are calculated using a progressive-band method: the purchase price is divided into bands, and each band is taxed at a different rate. The total tax is the sum across all bands — not a single flat percentage applied to the full price. This is why a £600,000 home does not pay twice the SDLT of a £300,000 home.
Our engine applies this method precisely, using the current rate tables for each jurisdiction. It also handles the surcharges that modify the headline rates — such as the 3% additional-property SDLT surcharge in England, the 6% Additional Dwelling Supplement in Scotland, the 2% non-resident surcharge, and the Additional Buyer's Stamp Duty tiers in Singapore.
Rate tables are stored in a versioned database. When a government announces a change, we add a new rule version with the effective date. Each calculation records which rule version was applied, so results remain traceable even as the law changes.
Countries and jurisdictions covered
| Country | Tax name | Jurisdictions |
|---|---|---|
| 🇬🇧 United Kingdom | SDLT / LBTT / LTT | England & N. Ireland, Scotland, Wales |
| 🇮🇳 India | Stamp Duty + Registration | 10 states including Maharashtra, Delhi, Karnataka |
| 🇦🇺 Australia | Transfer Duty | NSW, Victoria, Queensland, WA, SA, Tasmania |
| 🇸🇬 Singapore | BSD + ABSD | National |
| 🇨🇦 Canada | Land Transfer Tax | Ontario, British Columbia, Quebec, Alberta |
A note on accuracy
Our calculator provides guidance-level estimates based on official published rates. It is not a substitute for professional tax advice. Tax rules can change between our last update and your transaction date, and individual circumstances — linked transactions, company purchases, mixed-use properties, charitable exemptions — may affect the final liability. Always confirm the figure with the relevant tax authority or a qualified solicitor or conveyancer before exchanging contracts.