Stamp duty across AU, NZ, and UK: what actually changes your number

Ask three investors what stamp duty on a $650,000 property costs and you will get three different answers, and all three could be right. The bill depends on the country, the state or region within it, whether you already own a home, whether this is an investment or your own home, and sometimes your citizenship or residency status. None of that shows up in a generic “closing costs” estimate.

In Australia, stamp duty (transfer duty) is set state by state, with separate concessions for first home buyers and, in some states, surcharges for foreign purchasers. New Zealand abolished stamp duty on property purchases entirely, though it retains other transfer costs. The UK’s Stamp Duty Land Tax (SDLT, or LBTT in Scotland, LTT in Wales) applies bracketed rates that step up with price, plus a surcharge for additional properties.

The practical takeaway: model duty by jurisdiction before you fall in love with a specific property. A $650,000 apartment in Melbourne, Auckland, and Manchester can carry a duty bill that differs by tens of thousands of dollars, money that comes straight off your deposit, not your mortgage. Build it into your Buying Plan from day one rather than discovering it at settlement.

First home buyers should also check concession thresholds carefully, several AU states waive or reduce duty below a set price, and that threshold moves more often than people expect.