What Is Land Tax and Who Has to Pay It in South Australia?
Land tax in South Australia is an annual state tax on the combined site value of all taxable land you own above a tax-free threshold, administered by RevenueSA under the Land Tax Act 1936. Land tax is calculated based on the circumstances that exist as at midnight on 30 June immediately before the financial year the tax is levied for — the owner at that moment is liable for the whole of the following financial year, even if the land is later sold. Site value (the value of the land excluding buildings and other improvements) is set annually by the Valuer-General.
How Is Land Tax Calculated in South Australia?
Land tax uses two separate rate scales — general and trust — and applies to the combined (aggregated) site value of everything you own, not property by property. The general tax-free threshold is $936,000, rising through four further bands to 2.4% on the value above $3,504,000. Land held on trust gets a much lower $25,000 threshold and generally higher rates — see below. If your combined site value is above the threshold but the calculated land tax works out to less than $20, RevenueSA doesn't issue an assessment at all.
What Is Exempt From Land Tax?
- Principal place of residence — your home is generally exempt if you own and occupy it, with a detailed set of rules covering partial business use, motels/serviced accommodation, moving house mid-year, and homes destroyed or under renovation.
- Primary production land — see below; the most relevant exemption for rural and farming landholders.
- A range of other exemptions cover retirement villages, caravan and residential parks, aged care and supported residential facilities, Special Disability Trusts, public land, and charitable, sporting, ex-servicemen's and similar not-for-profit associations.
Primary Production Land Exemption — Eligibility in Detail
Land of 0.8 hectares or more, wholly or mainly used for a genuine business of primary production (agriculture, pasturage, horticulture, viticulture, apiculture, poultry or dairy farming, forestry, or similar). These "general conditions" are the whole test for land outside the Land Tax Act's "defined rural area" — a legislative term that, despite its name, actually means the metropolitan areas of Adelaide (roughly Willunga to Gawler) and Mount Gambier. For land inside that defined rural area (i.e. inside those metro zones), an additional test applies: a natural-person owner (or at least one joint owner) must be substantially engaged full-time in the business, with further alternative pathways for retired owners, deceased estates, and company-owned land.
In practice, this means the test you need to pass depends entirely on where your land is. RevenueSA first checks the Valuer-General's land use code — if your land is coded as primary production and sits outside metropolitan Adelaide or Mount Gambier, the exemption is often applied automatically. Land inside those metro zones needs one of several alternative "genuine farmer" tests satisfied on top of the basic size and use conditions.
Primary Production Land Tax Exemption — General Conditions (South Australia)
These two conditions apply to every primary production exemption claim in SA, regardless of location. Answer honestly for a quick indication only — this is not a substitute for an actual application to RevenueSA.
Source: RevenueSA — Guide to Legislation: Land Tax, primary production exemption (see sources below).
If your land is inside metropolitan Adelaide (roughly Willunga to Gawler) or Mount Gambier, you also need at least one of these to apply: a natural-person owner substantially engaged full-time in the farming business; a co-owner who is a relative of someone so engaged; a retired owner who was previously so engaged (with a currently-engaged close relative as co-owner or successor); a deceased estate in similar circumstances; or a company where the primary production business is the main business of every owner, or where the majority shareholder(s) are substantially engaged full-time in the business. This part of the test has enough alternative pathways that it's genuinely worth confirming your specific situation with RevenueSA directly rather than relying on a simple checklist.
Land Tax for Trusts
Land held on a discretionary, fixed or unit trust is assessed separately from land the trustee owns personally, at the trust rate scale and the much lower $25,000 threshold. Some trusts are excluded from this higher trust rate and taxed at the general rate instead — this covers concessional trusts, superannuation fund trusts, deceased estate administration trusts, implied/constructive/resulting trusts, and public unit trust schemes (listed or widely held). Trustees also have the option, in most cases, to nominate the trust's beneficiaries or unitholders — where that's done, the land is assessed at the general rate in the trust ownership, then again (with a deduction for tax already paid) against each beneficiary's own individual landholdings.
How and When Land Tax Is Assessed and Paid
RevenueSA usually issues Land Tax Assessments between October and November for the financial year already underway. Tax can be paid in full or by quarterly instalments. If you're buying or selling property, a Certificate of Land Tax Payable can be obtained to establish exactly what's owed — land tax is a first charge on the land itself, so this certificate (and paying the amount it shows within 90 days) is what protects a purchaser from inheriting the vendor's unpaid land tax debt.
Frequently Asked Questions
Does my home get taxed under land tax?
Your principal place of residence is generally exempt if you own and occupy it, subject to a detailed set of eligibility rules — including a scaled partial exemption if part of the home is used for business.
Is farmland automatically exempt from land tax in SA?
Often yes if it's outside metropolitan Adelaide or Mount Gambier and correctly coded by the Valuer-General — but land inside those metro areas needs to satisfy one of several additional "genuine farmer" tests.
Does land tax apply per property or across my whole portfolio?
Across your whole non-exempt SA landholding combined, not property by property — though land held on trust is assessed separately from land you own personally.
Where can I get an exact land tax figure for my property?
This page provides general information only — use RevenueSA's own resources, or speak with a registered tax agent, for a precise figure based on your specific circumstances.
Updated on 2026-07-13 — what changed
13 July 2026: promoted from a cornerstone stub to a full article using RevenueSA's 2026-27 rates document and the 49-page "2025-26 Guide to Legislation: Land Tax" — the primary production exemption description was corrected (the "defined rural area" legislative term actually refers to metropolitan Adelaide/Mt Gambier, not land outside it) and full trust-assessment detail was added.