Owning a rental property can give you access to tax deductions, but not every expense is immediately deductible.
Some costs can be claimed in the year you incur them. Others must be claimed over several years or considered when calculating capital gains tax after you sell.
Getting these distinctions wrong can lead to incorrect deductions, missed claims or amendments to your tax return.
Here are 10 common rental property tax mistakes Australian property investors should understand.
What rental property expenses can you claim?
The Australian Taxation Office generally divides rental property expenses into three categories.
Immediate deductions
Eligible costs such as loan interest, property management fees, council rates, insurance and certain repairs.
Deductions over time
Eligible borrowing expenses, capital works and depreciation of qualifying assets.
Capital costs
Some purchase costs, improvements and selling costs may be relevant when calculating capital gains tax.
Non-deductible costs
Private expenses, loan principal repayments and certain travel or second-hand asset costs are generally not deductible.
1. Claiming renovations as repairs
This is one of the most common rental property deduction mistakes.
Repairs generally restore something that has become damaged or worn through renting out the property.
Improvements make the property better, change its character or replace an entire asset or structure.
For example, fixing a leaking tap may be an immediate deduction. Replacing an entire kitchen is generally capital expenditure.
Restores existing functionality after damage or deterioration arising from rental use. May be immediately deductible.
Adds something new, upgrades the property or replaces an entire asset. Capital treatment generally applies.
Fixes a defect that existed when you acquired the property. Generally not an immediate deduction.
Some building expenditure may qualify for deductions spread over several years.
The treatment depends on the nature, timing and purpose of the expenditure.
A $15,000 bathroom renovation
You replace an old bathroom with new tiles, fittings and cabinetry for $15,000.
Even if the original bathroom was in poor condition, the project may be an improvement rather than an ordinary repair.
Eligible construction expenditure may qualify for capital works deductions rather than an immediate $15,000 claim.
2. Claiming the full mortgage repayment
Your regular mortgage payment may include both interest and repayment of the loan principal.
Interest on money borrowed for income-producing rental purposes may be deductible.
Repaying the principal is not a rental property tax deduction.
Your annual repayments total $36,000
Assume $24,000 relates to deductible interest and $12,000 reduces the loan balance.
Subject to the property's income-producing use, the $24,000 interest may be deductible.
The $12,000 principal repayment is not deductible.
3. Using an investment loan for private spending
A loan secured against a rental property is not automatically deductible in full.
What matters is how the borrowed funds are used.
If you redraw money from an investment loan to buy a private vehicle or pay personal expenses, the interest attributable to that borrowing is generally not deductible.
Mixed-purpose loans can become difficult to calculate because each repayment and redraw may affect the deductible portion.
Keep clear records of redraws, refinancing and the purpose of each borrowing.
4. Claiming expenses when the property is not genuinely available for rent
A property does not need to have a tenant every day for eligible expenses to be deductible.
It must generally be rented or genuinely available for rent, subject to the relevant rules.
A property may not be genuinely available if you advertise it at an unrealistic rent, restrict tenants excessively or keep it mainly for personal holidays.
Some expenses incurred before a property becomes available may still be deductible, depending on their nature and the circumstances. Special restrictions apply to vacant land.
The dates, rental conditions and evidence of your intention matter.
5. Failing to apportion private use
If you use a rental property privately for part of the year, you generally cannot claim all expenses as though it were available to tenants for the full year.
This often arises with holiday homes and short-stay accommodation.
Expenses may need to be apportioned between income-producing and private use.
A holiday property used by its owners
You rent a coastal property to paying guests but reserve several weeks each year for family holidays.
You may need to reduce relevant expense claims to reflect the private-use periods.
The calculation can also depend on whether the property was genuinely available for rent during the remaining periods.
6. Claiming travel to inspect a residential rental property
Individual owners of residential rental properties generally cannot claim travel expenses for inspecting, maintaining or collecting rent from those properties.
This includes common expenses such as fuel, accommodation and airfares for visits to a residential investment property.
Exceptions apply in certain circumstances, including qualifying businesses and excluded entities.
Do not assume a trip becomes deductible because you inspected the property while travelling.
For a broader explanation of how travel deductions are assessed, see RJS's article on working from home and travel tax deductions .
7. Claiming depreciation on second-hand assets incorrectly
Depreciation rules distinguish between the building and separate depreciating assets.
Eligible building construction costs may qualify for capital works deductions.
Separate assets, such as appliances and certain furnishings, may qualify for decline-in-value deductions.
Restrictions generally prevent individual residential property investors from claiming depreciation on certain previously used assets.
For example, an existing second-hand dishwasher acquired with a residential rental property may not qualify for depreciation.
A newly purchased qualifying asset may receive different treatment.
A depreciation schedule can help identify eligible costs, but it does not override the restrictions.
8. Claiming borrowing costs in the wrong year
Loan establishment fees, lender's mortgage insurance and certain mortgage-related costs may qualify as borrowing expenses.
Where the deductible borrowing expenses exceed $100, they are generally claimed over five years or the loan term, whichever is shorter.
Expenses of $100 or less may generally be deducted in the year incurred.
If the loan ends early, the remaining deductible amount may be claimable under the applicable rules.
Keep the loan agreement, settlement documents and lender statements.
9. Overlooking body corporate and special levy rules
Owners of units and apartments often pay body corporate or owners corporation fees.
Regular administration costs may be deductible when they relate to the income-producing property.
Special levies used to fund capital improvements can receive different tax treatment.
For example, a levy to replace an entire building lift may not be treated the same way as ordinary cleaning or maintenance fees.
Review the purpose of the levy and obtain supporting statements from the owners corporation.
10. Forgetting the capital gains tax implications
Rental property tax records remain important long after you lodge the annual return.
When you sell an investment property, capital gains tax may apply to the gain.
Certain acquisition costs, improvements and selling expenses may form part of the property's CGT cost base.
Capital works deductions can also affect the cost base calculation. Amounts that have been or can be deducted generally cannot also be included in the cost base.
Keep purchase documents, renovation invoices, depreciation schedules and selling records so the eventual CGT calculation can be completed.
Rental property deductions at a glance
| Expense | General tax treatment |
|---|---|
| Property management fees | Generally immediately deductible when incurred for rental purposes. |
| Investment loan interest | Generally deductible to the extent the borrowing is used for eligible rental purposes. |
| Mortgage principal repayments | Not deductible. |
| Ordinary repairs | May be immediately deductible if they relate to rental use. |
| Major renovations | Generally capital expenditure. Some costs may qualify for deductions over time. |
| Eligible borrowing expenses | Generally claimed over the applicable period. |
| Second-hand depreciating assets | Residential rental restrictions may prevent a deduction. |
| Travel to a residential rental | Generally not deductible for individual investors. |
| Private-use expenses | Not deductible to the extent they relate to private use. |
What records should rental property owners keep?
Good records make it easier to support deductions and calculate capital gains when the property is sold.
- Property purchase contract and settlement statement.
- Loan statements showing interest and principal.
- Property management statements and rental income records.
- Council rates, insurance and land tax notices.
- Repair invoices and renovation documents.
- Depreciation and capital works schedules.
- Owners corporation statements and special levy details.
- Evidence of rental advertising, occupancy and private use.
- Records of refinancing, redraws and loan purpose.
- Sale contracts and associated selling costs.
The ATO generally requires rental property records to be retained for five years from the relevant tax return lodgement date.
Records relevant to CGT may need to be retained for at least five years after the relevant CGT event.
Frequently asked questions
Can I claim repairs made before my first tenant moves in?
Costs to fix defects that existed when you purchased the property are generally initial repairs and not immediately deductible. Some costs may qualify for capital works treatment or be relevant to CGT.
Can I claim interest while my rental property is vacant?
Interest may remain deductible if the property is genuinely available for rent and the borrowing continues to serve an income-producing purpose. The circumstances and any special restrictions must be considered.
Can I claim a new air conditioner for my rental property?
A new air conditioner may be treated as a depreciating asset rather than an immediate repair. The correct treatment depends on the nature of the work and applicable depreciation rules.
Can I claim my rental property mortgage repayments?
You may generally claim eligible interest expenses, but not repayments of the loan principal. Mixed-purpose borrowings require apportionment.
Can I claim travel to inspect my investment property?
Individual investors generally cannot deduct travel relating to residential rental properties. Exceptions exist for certain entities and qualifying businesses.
Are rental property losses tax deductible?
A rental property may produce a net tax loss when allowable expenses exceed assessable rental income. The tax treatment depends on ownership, the nature of the expenses and applicable tax rules.
Does a depreciation schedule guarantee a deduction?
No. A schedule helps identify and calculate eligible deductions, but claims must still satisfy the relevant capital works and depreciation provisions.
Related RJS articles and services
Review your property deductions before lodging
The tax treatment of rental property expenses depends on what you purchased, why you incurred the cost and how the property was used.
Classifying expenses correctly can help you avoid incorrect claims and preserve information needed for future capital gains calculations.
Before lodging your tax return, review major repairs, renovations, loan changes and periods of private use.
Are you claiming the right rental property deductions?
Your RJS accountant can review your rental income and expenses, help identify eligible deductions and consider the tax implications of your investment property.
Speak to an RJS AccountantSources and further reading
Australian Taxation Office: Residential Rental Properties
Australian Taxation Office: Rental Properties Guide
Australian Taxation Office: Rental Expenses to Claim
Australian Taxation Office: TR 97/23, Deductions for Repairs
Related RJS reading: Working From Home and Travel Tax Deductions
Information current as at October 2026.
This content is general commentary only and does not constitute advice. Before making any decision or taking any action in relation to the content, you should consult your professional adviser.
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