Complete ACT investment property tax guide 2025–26: land tax rates, negative gearing, CGT discount, conveyance duty and APRA DTI rules for Canberra investors.
Investing in Canberra property offers compelling long-term fundamentals — a highly educated workforce, low unemployment, strong rental demand from public servants and students, and a median house value of approximately $1,025,827 as at mid-2026. Yet the ACT's investment tax environment is among the most complex in Australia, combining territory-specific land tax assessed quarterly, conveyance duty on a non-owner-occupier schedule, and federal rules on negative gearing, capital gains tax and depreciation that interact in ways that can significantly affect your after-tax return.
The 2025–26 financial year has brought several important changes that every ACT investor must understand. APRA's debt-to-income measure, effective 1 February 2026, now limits authorised deposit-taking institutions from writing more than 20% of new residential lending at a DTI ratio of six times or above — a portfolio-level constraint that is reshaping how lenders assess investor applications. Meanwhile, the RBA cash rate stood at 4.35% as at early August 2026, with competitive investor mortgage rates available from 5.99% p.a., making the financing cost side of the tax equation more important than ever. Use our borrowing power calculator to model how the current rate environment affects your investment capacity.
This guide covers every major tax dimension of ACT investment property: land tax scope, quarterly assessment dates and 2025–26 rates; conveyance duty for investors; negative gearing and interest deductibility; the 50% CGT discount and upcoming 2027 changes; depreciation rules for post-2017 acquisitions; and the practical cash-flow implications of holding Canberra property in the current lending environment. Whether you are buying your first investment property in Gungahlin, adding to a portfolio in Belconnen, or reviewing the tax efficiency of an existing holding, this guide provides the factual foundation you need before seeking personalised advice.
How does ACT land tax work and who must pay it? ACT land tax applies to any residential property that is not the owner's principal place of residence — including rented property, vacant residential land, and a former home after it ceases to be the principal residence. Liability is assessed on four quarterly reference dates: 1 July, 1 October, 1 January and 1 April. There is no daily pro-rata calculation; if you own a non-principal-residence property on a reference date, you are liable for the full quarter. For 2025–26, the annual charge comprises a fixed component of $1,693 plus a variable charge based on the property's Average Unimproved Value (AUV), which averages up to five annual unimproved values. Investors must notify the ACT Revenue Commissioner within 30 days of a property becoming liable using the Land Tax Notification Form — late notification is treated as a tax default and may attract interest and penalties.
What are the 2025–26 ACT land tax rates? The variable component of ACT land tax is tiered by AUV: 0.54% for AUV up to $150,000; $810 plus 0.64% of the amount over $150,000 for AUV between $150,001 and $275,000; $1,610 plus 1.24% of the amount over $275,000 for AUV between $275,001 and $1,000,000; $10,600 plus 1.25% of the amount over $1,000,000 for AUV between $1,000,001 and $2,000,000; and $23,100 plus 1.26% of the amount over $2,000,000. Always obtain the official AUV from the ACT Revenue Office rather than estimating from purchase price — the AUV is typically well below market value but the calculation must be precise. A certificate of rates, land tax and other charges costs $148 from 1 July 2026.
Can I negatively gear an ACT investment property in 2025–26? Yes. For the 2025–26 financial year, a net rental loss — where deductible expenses including interest, land tax, rates, repairs and management fees exceed rental income — can generally be offset against other assessable income such as salary. If insufficient other income exists, the loss may be carried forward to future years. Interest deductibility depends on the borrowed money's income-producing use, not merely on which property secures the loan. Deductions must be apportioned where a property is privately used, rented for only part of the year, or not genuinely available for rent on commercial terms. Note that from 1 July 2027, legislated changes are expected to restrict negative gearing on established residential property — properties held by 7:30 pm AEST on 12 May 2026 are expected to receive transitional protection, but investors should obtain current tax advice on their specific situation.
What is the CGT discount for ACT investment property? An eligible Australian-resident individual who has owned an investment property for more than 12 months (excluding the acquisition and disposal days) may generally apply the 50% CGT discount to any capital gain, after first applying any available capital losses. This effectively halves the taxable gain. Eligible affordable housing managed by a registered community housing provider may attract an additional discount of up to 10%, taking the total to as much as 60%. Acquisition and disposal costs — including conveyance duty, legal fees and selling commissions — generally form part of the CGT cost base rather than an immediate deduction, which reduces the net capital gain on sale. Capital works deductions already claimed cannot also remain in the cost base.
How does APRA's DTI measure affect ACT investor borrowing in 2026? From 1 February 2026, APRA requires authorised deposit-taking institutions to limit new residential mortgage lending at a debt-to-income ratio of six times or more to no more than 20% of new lending — measured separately for owner-occupier and investor portfolios. This is a portfolio-level speed limit, not an absolute cap on individual borrowers: an ADI can still approve a loan above six times DTI within its high-DTI allocation. DTI considers total debt — including the proposed mortgage, existing mortgages, personal loans, car loans and credit-card limits — relative to gross annual income. The measure operates alongside the mortgage serviceability buffer of approximately three percentage points above the loan rate. Non-ADI lenders are outside this APRA cap. Use our loan comparison calculator to assess how different lenders' DTI policies affect your options.
What depreciation can I claim on an ACT investment property? Capital works — construction and structural improvement costs — are generally deductible at 2.5% per year over 40 years while the property is used to produce income. Certain build-to-rent developments may qualify for 4% over 25 years. However, investors generally cannot claim depreciation for second-hand residential depreciating assets (plant and equipment such as appliances, carpets and blinds) acquired after 9 May 2017 unless an exception applies. New properties or newly installed assets are not affected by this restriction. A balancing adjustment may arise when depreciating assets are disposed of with the property. A quantity surveyor's depreciation schedule is typically required to substantiate capital works claims.
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| Indicator | Houses | Units |
|---|---|---|
| Indicative median value (mid-2026) | $1,025,827 | $597,430 |
| Monthly value movement (July 2026) | -1.2% | -0.2% |
| Weekly asking rent (early August 2026) | $831.48 | $602.21 |
| Annual asking-rent growth | +6.9% | +2.9% |
| Typical gross yield | 3.6%–4.2% | 5.3%–5.6% |
| Vacancy rate (SQM Research, June 2026) | 1.7% (1,063 dwellings) | |
| Auction clearance rate (early August 2026) | ~43% (buyer-favourable market) | |
| Average Unimproved Value (AUV) | Variable Charge |
|---|---|
| Up to $150,000 | 0.54% of AUV |
| $150,001–$275,000 | $810 + 0.64% of amount over $150,000 |
| $275,001–$1,000,000 | $1,610 + 1.24% of amount over $275,000 |
| $1,000,001–$2,000,000 | $10,600 + 1.25% of amount over $1,000,000 |
| Above $2,000,000 | $23,100 + 1.26% of amount over $2,000,000 |
Fixed charge: $1,693 per year (added to variable charge). AUV averages up to five annual unimproved values (2021–2025 for 2025–26 assessment).
| Dutiable Value | Duty Payable |
|---|---|
| Up to $200,000 | $1.20 per $100 |
| $200,001–$300,000 | $2,400 + $2.20 per $100 over $200,000 |
| $300,001–$500,000 | $4,600 + $3.40 per $100 over $300,000 |
| $500,001–$750,000 | $11,400 + $4.32 per $100 over $500,000 |
| $750,001–$1,000,000 | $22,200 + $5.90 per $100 over $750,000 |
| $1,000,001–$1,455,000 | $36,950 + $6.40 per $100 over $1,000,000 |
| Above $1,455,000 | 4.54% of total value |
Duty is determined by contract signing date, not settlement. Payable within 14 days after title registration.
| Item | House | Unit |
|---|---|---|
| Indicative value | $1,025,827 | $597,430 |
| 80% loan amount | $820,662 | $477,944 |
| Annual gross rent | $43,237 | $31,315 |
| Annual interest at 5.99% p.a. | $49,157 | $28,629 |
| Rent less interest (before other costs) | -$5,920 | +$2,686 |
Arithmetic illustration only — not a forecast. Excludes land tax, general rates, strata, management, insurance, repairs and vacancy. The apparent unit surplus disappears once all holding costs are included. Rates from 5.99% p.a. are available to eligible borrowers; comparison rates and eligibility conditions apply. See current investment loan rates.
For ACT investment property loans, lenders typically count only 70–80% of expected rental income when assessing serviceability. Combined with the APRA serviceability buffer of approximately 3 percentage points above the loan rate, this means investors need to demonstrate strong income relative to total debt. Explore your options with our repayment calculator to model different loan structures.
The ACT investment property market in 2025–26 rewards investors who understand the full tax picture before they buy. With land tax assessed quarterly on a non-pro-rata basis, conveyance duty on the non-owner-occupier schedule, and federal rules on negative gearing, CGT and depreciation all interacting, the difference between a well-structured and a poorly structured investment can be tens of thousands of dollars per year. The current lending environment — with competitive rates from 5.99% p.a. and APRA's DTI portfolio measure reshaping lender behaviour — adds further complexity that makes professional advice essential rather than optional.
Canberra's fundamentals remain sound: a 1.7% vacancy rate, strong rental demand from government and university sectors, and long-term population growth underpin the investment case. Units in suburbs like Gungahlin, Belconnen and Braddon offer gross yields of 5.3%–5.6%, though net yields after land tax, strata and management costs require careful modelling. For investors considering their first ACT property, our guide to how much you can borrow and our ACT investment strategies guide provide complementary context. For those reviewing an existing portfolio, our ACT investment property trends 2026 article covers the latest suburb-level data.
Whether you are entering the Canberra investment market for the first time or optimising an existing portfolio ahead of the 2027 tax changes, the right loan structure and tax strategy can make a material difference to your long-term returns. Book a complimentary consultation with a HomeLending.au mortgage broker to discuss your ACT investment property financing options, compare lender policies on DTI and rental income assessment, and ensure your loan structure is aligned with your tax strategy.
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