Australia Rental Tax Changes 2026: What the ATO Is Watching

Part 6 of the Rental Rule Changes Watch 2026 series.

Australia has one federal rental tax system and eight state and territory tenancy systems. This article is about the federal tax layer only: Australian Taxation Office guidance that applies across Australia.

That distinction matters. The ATO can tell you how to treat rental income, deductions, apportionment, co-ownership, and holiday-home use. It does not replace state-based tenancy rules in Queensland, Victoria, New South Wales, South Australia, Western Australia, Tasmania, the Australian Capital Territory, or the Northern Territory.

For the broader New Zealand and Australia series hub, start with Rental Rule Changes 2026: What New Zealand and Australia Landlords Need to Track.

Why 2026 Is a Strong ATO Watch Year

The ATO’s rental expenses guidance groups rental expenses into three broad categories:

• expenses you can claim now, such as interest on loans, council rates, repairs and maintenance, and some low-cost depreciating assets
• expenses claimed over several years, such as capital works, borrowing expenses, and decline in value of depreciating assets
• expenses you cannot claim, such as personal expenses, some capital costs, and certain second-hand depreciating assets

The ATO also points taxpayers to newer draft guidance:

• TR 2025/D1 on rental property income and deductions for individuals who are not in business
• PCG 2025/D6 on apportionment of rental property deductions
• PCG 2025/D7 on holiday homes that are also rented out

Because some of this material is draft guidance, landlords should treat it as a strong signal of the ATO’s direction and get tax advice for their own facts.

The Watchlist

This is the practical tax version of ProppiAI’s recurring theme: documents are the evidence layer beneath the rule.

Income: Agent, Platform, Direct, and Family Arrangements

Draft TR 2025/D1 says assessable rental income includes amounts derived through an agent, through a sharing or online platform, or directly from a tenant.

It also says that if co-owners own a rental property, rental income is usually attributed according to each co-owner’s legal interest in the property, except in very limited circumstances where evidence establishes a different equitable interest.

That creates a simple evidence rule: keep the title record and the income records together.

For family and household arrangements, the draft ruling distinguishes between shared household costs and amounts for the use of property under a lease or licence. If a family member pays below-market rent, the ATO material makes the facts and documentation important.

Useful records include:

• lease or licence agreement
• market rent appraisal or comparable listings
• agent statements
• platform statements
• bank deposits
• title records showing legal ownership split
• accountant working papers on income attribution

Deductions: The Category Has to Match the Expense

The ATO’s rental expense page is clear that different expenses are treated differently.

Some can be claimed now. Some are claimed over several years. Some cannot be claimed. The difference between repair, maintenance, improvement, borrowing expense, depreciating asset, and capital works can change the timing and amount of the deduction.

The evidence problem is that a bank transaction rarely tells the full story. A transaction labelled “builder” does not prove whether the work was repair, maintenance, or capital improvement.

Keep:

• detailed invoices
• quote and work scope
• before-and-after photos
• inspection notes
• insurance or tenant damage correspondence
• depreciation schedule, where relevant
• accountant classification notes

For the broader investor framing, see Negative Gearing in Australia: The Tax Strategy That’s Not Free Money.

Apportionment: The ATO Is Asking for Working, Not Vibes

The ATO says you need to work out the amount of an expense that relates to income-producing activities if, for example:

• the property is genuinely available for rent for only part of the year
• you use the property privately for part of the year
• only part of the property earns rent
• the property is rented at non-commercial rates
• the investment loan is also used for personal purposes

Draft PCG 2025/D6 sets out time-based, area-based, and combined approaches for common situations. It also says you need records to support why the guideline applies and how the apportionment calculation was made.

That makes the evidence fairly concrete:

• calendar days rented
• calendar days genuinely available for rent
• blocked private-use dates
• floor plan and area calculation
• comparable market rent evidence
• loan-purpose and redraw records
• spreadsheet or accountant working showing the method

A deeper companion guide unpacks this: Australian Rental Deduction Apportionment: Time, Area, Family, and Redraw Traps.

Holiday Homes and Short-Stay Rentals

Draft TR 2025/D1 says holiday homes require an objective analysis of use and availability. It also says some deductions for a holiday home that is also rented out may be denied unless an exception applies.

The ATO points to draft PCG 2025/D7 for its compliance approach to holiday homes rented out as well.

This is where a calendar becomes tax evidence. If the property is blocked out for family use during peak demand, or advertised in a way that makes rental unlikely, the ATO may look past the fact that it appeared online.

Keep:

• platform calendars
• booking history
• owner-use dates
• family or friend-use dates
• blocked dates during peak periods
• nightly rate evidence
• guest restrictions and listing rules
• agent instructions
• cleaning and platform commission records

A dedicated guide unpacks this separately: Holiday Homes and Short-Stay Rentals in Australia: The ATO Green, Amber, and Red Zones.

Redraws, Refinances, and Loan Purpose

Draft PCG 2025/D6 says that where a mortgage is taken out against a rental property, or the property is re-mortgaged, and the funds are not all used for income-producing purposes, you cannot claim all of the interest expenses.

It also notes that redraw amounts are not treated as relating to the original purchase of the rental property; they relate to what was purchased with the withdrawn amounts.

That is a document trap. Years later, the loan statement may show interest, but not why a redraw happened.

Keep:

• original loan agreement
• refinance documents
• redraw transaction history
• evidence of what each redraw funded
• split-loan calculations
• accountant working papers

What the ATO Statistics Say About Why This Matters

Our Australia Rental Tax Statistics 2022-23 analysis found that 2,261,080 Australians had rental property interests in 2022-23, and 49.41% reported an overall net rent loss. Interest on loans made up 44.26% of total rental expenses reported on rental property schedules.

That explains why record quality matters. If interest, repairs, capital works, and apportionment drive the tax position, small classification errors can move real money.

For state-level tenancy compliance, use Australian Landlord Compliance Gap Report 2026. Tax is national; rental compliance is state-specific.

Source Note

This article covers Australia-wide federal tax guidance from the Australian Taxation Office. It does not cover state or territory residential tenancy law, which differs by jurisdiction.

Rental Rule Changes Watch 2026

Published guides in this series:

• Rental Rule Changes 2026: What New Zealand and Australia Landlords Need to Track
• New Zealand Rental Law Changes 2026: The Landlord Action Checklist
• Pet Bonds in New Zealand Rentals: What Changes From December 2025
• IRD Rental Records for New Zealand Landlords: What to Keep in 2026
• New Zealand Bright-Line Test 2026: The Dates and Documents That Matter
• Australia Rental Tax Changes 2026: What the ATO Is Watching
• Holiday Homes and Short-Stay Rentals in Australia: The ATO Green, Amber, and Red Zones
• Australian Rental Deduction Apportionment: Time, Area, Family, and Redraw Traps
• Queensland Rental Law Changes 2026: What Property Owners Need to Track
• Victoria Rent Increases, Pets, and Minimum Standards: 2026 Guide for Rental Providers

Keep Reading

• Holiday Homes and Short-Stay Rentals in Australia: The ATO Green, Amber, and Red Zones
• Australian Rental Deduction Apportionment: Time, Area, Family, and Redraw Traps
• Negative Gearing in Australia: The Tax Strategy That’s Not Free Money
• Capital Gains Tax on Australian Investment Property: The 50% Discount Trap
• Australia Rental Tax Statistics 2022-23

The Short Version

1. Australian rental tax guidance is federal, but tenancy rules remain state and territory based.
2. The ATO is watching income, deductions, co-ownership, private use, family rentals, holiday homes, apportionment, and loan purpose.
3. Expenses may need to be split by time, area, ownership share, use, or loan purpose.
4. Holiday homes and short-stay rentals need strong calendar and availability evidence.
5. Redraws and refinances need loan-purpose records.
6. A strong tax file ties every return figure back to a source document.