Free tool · Property developers

GST margin scheme calculator

On an eligible sale, GST is 1/11th of your margin — not 1/11th of the whole price. See what that difference is worth, and whether your sale may qualify. General guidance only; eligibility must be locked in before the contract is signed.

1. Your numbers Total sale price of the dwellings sold (GST-inclusive)

One dwelling: its sale price. A duplex or multi-townhouse project: add up the sale prices of the units you're selling under the margin scheme and enter the total.

Purchase price of the land relating to those dwellings

Sold the whole project: enter the full original purchase price. Sold only some of the units: enter just the share of the purchase price that belongs to those units (apportioned on a reasonable basis, e.g. land area) — using the full site cost against part of the sales understates your GST. Development and construction costs don't reduce the margin. Properties held since before 1 July 2000 may use a valuation instead — that's a conversation, not a calculator.

2. How did you acquire the property? From a seller not registered for GST (e.g. a home owner) Under the margin scheme We've held it since before 1 July 2000 As a fully taxable sale where we claimed the GST credit Not sure

3. Is the margin scheme written into the sale contract? Yes / it will be Not yet — contract not signed Contract already signed without it