What actually is the ATO's property management data-matching program?

It is a formal, gazetted data-matching program under which the ATO acquires property management data directly from property management software companies operating in Australia. The current protocol covers the financial years 2018-19 through 2025-26 and expects to obtain records relating to approximately 2.3 million individuals each financial year. Data fields include property owner details, property address, dates first available for rent, property manager licence numbers, landlord bank account details, and full transaction ledgers with ingoings, outgoings and account balances. The gazette notice sits in the Federal Register of Legislation and the protocol is published on ato.gov.au.

How is the rental bond data-matching program different?

The bond program pulls data from state and territory bond authorities such as the NSW Rental Bonds Board, Victoria's RTBA, the Queensland RTA and equivalents. The ATO extended that program from 2023-24 to 2025-26 with records for around 2.2 million individuals a year, pulled twice per year. The data set includes lease start and end dates, bond amounts, weekly rent, dwelling type, number of bedrooms and refund status. In combination with property manager data, the ATO can see the address, the tenancy dates and the rent flow independently of anything the landlord reports.

What did the ATO actually raise from this activity last time it disclosed figures?

For 2022-23, the ATO reported that the rental bond program combined with other data-matching and compliance strategies identified approximately 5,600 taxpayers with real property dealings that had not been treated correctly, raising about $23 million in additional revenue. That was before the property management software program was in force at its current 2.3 million-record scale, and before the sharing economy platforms began direct quarterly reporting.

Which Airbnb and Stayz information does the ATO have?

Since July 2024, digital platform operators including Airbnb, Stayz and Booking.com have been required to report host income and booking data to the ATO on a quarterly basis under the Sharing Economy Reporting Regime. The ATO's sharing economy accommodation data-matching program aggregates that feed and cross-references it with individual tax returns. Any Australian resident hosting through those platforms is visible to the ATO by property address, booking dates and gross income before commissions, whether or not that host declares it.

What are the ATO's biggest specific compliance targets for 2025-26 landlord returns?

Assistant Commissioner Rob Thomson has publicly named deductions overclaimed to offset rising rental income as a headline focus. Assistant Commissioner Tim Loh previously flagged loan interest as the single biggest problem, with about 80% of taxpayers who declared rental income claiming interest and this being where the largest mistakes appear. The core issue is loan interest apportionment where any part of the original or refinanced loan was drawn for private purposes, in which case only the rental portion of the interest is deductible. Repairs versus capital improvements is the second recurring trap.

If the ATO thinks something is wrong on my return, what happens next?

The ATO typically contacts the taxpayer with a discrepancy notice giving 28 days to verify the information before administrative action begins. Voluntarily amending a return before the ATO contact reduces penalties. Where the ATO believes an overclaim was deliberate rather than a mistake, penalties, interest charges and in serious cases prosecution can apply on top of the additional tax. Keeping the underlying evidence such as bank statements, agent statements, invoices and loan drawdown records for at least five years is the practical defence.

ATO to cross-check 2.3 million property records against 2025-26 landlord returns. 9 in 10 got it wrong last year

This article is general information only and does not constitute financial or tax advice. Consult a qualified tax professional for advice specific to your situation.

Key takeaways

The ATO's property management data-matching program is now pulling records for approximately 2.3 million individuals a year from property management software companies, covering the financial years 2018-19 through 2025-26. Program protocol on ato.gov.au.
A parallel rental bond program pulls data on around 2.2 million individuals a year from state and territory bond authorities, extended to run twice per year between 2023-24 and 2025-26. Rental bond data-matching program.
Sharing economy platforms including Airbnb, Stayz and Booking.com have been reporting host income and booking data to the ATO quarterly since July 2024 under the Sharing Economy Reporting Regime, feeding the sharing economy accommodation data-matching program.
The last time the ATO put a compliance number on the bond program in isolation, it identified about 5,600 non-compliant taxpayers and raised $23 million in additional revenue in a single year, per the Accountants Daily coverage of the ATO's disclosures. That was before the software feed was live at scale.
ATO reviews continue to show around 9 in 10 rental property owners get their return wrong, with about 80% of those with rental income claiming an interest deduction and interest apportionment being the single biggest error source.
2025-26 is the first full tax year during which all three feeds (property management software, rental bond authorities, sharing economy platforms) run simultaneously. Landlords lodging their 2025-26 return this July are lodging into a matched-data environment, not a self-assessed one.
Practical response: reconcile every income line to the agent statement, split loan interest on any mixed-use drawdown, keep an itemised repair-versus-improvement log, and hold the underlying evidence for five years in case a discrepancy notice arrives.

This article is general information only. It does not consider your personal circumstances and is not financial or tax advice. Talk to a registered tax agent before lodging or amending a return based on any of the figures below.

What is actually running this tax time

The ATO has not launched anything new in July 2026. What is new is that three separate data-matching programs are all live at full scale for the same financial year, and 2025-26 is that financial year. Any 2025-26 return going through myGov this month lands in an environment where the ATO already has parallel copies of most of the underlying data.

Three feeds are worth being precise about.

Property management software feed. The ATO's property management data-matching program requires property management software providers operating in Australia to hand over structured data for the financial years 2018-19 through 2025-26. The gazette notice sits in the Federal Register of Legislation. The volume estimate published by the ATO is approximately 2.3 million individuals per year. Fields include property owner name, contact details and date of birth, property address, date the property was first available for rent, property manager name, ABN, licence number, and the landlord's bank account details. On the transaction side, the ATO receives period start and end dates, transaction type, amounts, ingoings, outgoings and the rental property account balance.

Rental bond authority feed. The rental bond data-matching program collects data from the state and territory bond bodies. The current protocol covers financial years 2023-24 to 2025-26, with the ATO acquiring data twice per financial year and estimating records relating to about 2.2 million individuals each cycle. The dataset includes property addresses, lease periods, commencement and expiry dates, bond amounts, rent payable and payment frequencies, dwelling type and number of bedrooms, along with bond numbers, lodgement dates, statuses, refund amounts and records of unclaimed bonds.

Sharing economy accommodation feed. Under the Sharing Economy Reporting Regime, digital platform operators have been required to report host earnings and booking activity to the ATO on a quarterly basis since 1 July 2024. The sharing economy accommodation data-matching program then feeds that data into the ATO's individual return risk engine. Airbnb, Stayz and Booking.com sit at the top of the list of covered platforms.

Two years ago, only the bond feed was running at scale. Now all three are.

What the ATO can already see before you press submit

Take a standard Brisbane investor with one property managed by a licensed agent using a mainstream property management platform, and no short-stay activity. Before that landlord's 2025-26 return has even hit the ATO's assessment queue, the ATO already has:

The property address, from both the software feed and the bond feed.
The tenancy start and end dates, weekly rent and bond amount, from the bond authority feed.
The full transaction ledger from the agent's software: gross rent collected week by week, management fees, letting fees, marketing charges, repairs and maintenance line items with descriptions and amounts, water usage charges reimbursed, and the running trust account balance.
The landlord's bank account details and BSB where the net rent is disbursed.
The property manager's licence number and ABN.

For a landlord with a listing on Airbnb or Stayz on top of that, the ATO also has quarterly booking counts, gross revenue before platform commissions, and the guest booking calendar for the year. Under-declared short-stay income has historically been the most common mismatch in this segment, because hosts often net the platform fee off before recording income in their books.

Two immediate practical consequences.

First, gross rent misstatements are a losing bet. The bond authority number is objective, the agent software number is objective, and both are held against the return. Under-reported rent lands on the mismatch report almost automatically.

Second, deduction claims are being assessed against agent-supplied line items, not against a landlord's own summary. Where an agent's statement shows $3,200 of "improvements to bathroom" and the return claims $3,200 of "repairs", the ATO sees the mismatch on the label as much as on the amount.

The $23 million reveal and why 2025-26 is bigger

The most concrete disclosure the ATO has made on a single year of this activity referred to 2022-23. The rental bond program combined with related data-matching identified around 5,600 non-compliant taxpayers and raised approximately $23 million in additional revenue. The figure was published through the ATO's own disclosures and reported by Accountants Daily's coverage of the bond program.

2022-23 was the year the bond feed was scaling and the software feed was still bedding in. 2025-26 is the first year where the software feed runs at its full 2.3 million-record cadence alongside the bond feed's 2.2 million-record cycle and a full year of quarterly Airbnb, Stayz and Booking.com feeds. The 2025-26 compliance disclosure, when it eventually lands, is unlikely to look smaller.

Where the ATO says the errors actually sit

The ATO has been consistent for several tax years on the specific errors it finds. Two statements from named ATO officers frame the ground:

ATO Assistant Commissioner Rob Thomson has publicly flagged that the ATO is focused on claims inflated to offset rising rental income, per the ATO's own warning to rental property owners not to let their tax return become a "fixer-upper". Repair versus capital improvement misclassifications and lack of documentation to substantiate claims are the two named recurring problems.
ATO Assistant Commissioner Tim Loh previously stated that reviews show around 9 in 10 rental property owners are getting their return wrong, and that about 80% of taxpayers with rental income claim a deduction for loan interest, which is where the biggest mistakes appear. See the ATO's get your rental right this tax time release.

The mechanical trap on interest sits with mixed-use loans. Where an investment loan has been redrawn to fund a private outlay such as a car, a renovation on the landlord's own home, or a holiday, only the portion of interest attributable to the investment use is deductible. Many landlords never split the loan and claim 100% of the interest anyway. That is the specific mismatch that comes up when the ATO's bank statement data intersects with the property management transaction feed.

Repairs versus improvements is the second trap. A cracked window pane replaced like-for-like is a repair and immediately deductible. A whole new kitchen is a capital improvement and deductible over the effective life via Division 40 or Division 43. Agents' software transaction descriptions often leak the truth into the ATO's dataset even when the return says otherwise.

The rate reset context makes 2025-26 higher risk

The temptation to overclaim is not academic in 2025-26. The RBA held the cash rate at 4.35% through most of the year before the May 2026 cut, and variable investor mortgage rates spent most of the tax year in the mid-6% range before easing slightly at the tail. Interest costs for many investors were the single largest deduction on the return.

Higher interest deductions in a year of rising rents create precisely the pattern the ATO's Assistant Commissioners have named as a red flag: bigger claims layered on top of higher income to compress the net rental result. That is what the software and bond feeds are best positioned to unwind. Where an interest claim is larger than the loan balance implied by the servicing pattern, or where a repair claim spikes on a property whose bond record shows a mid-year tenancy transition without corresponding damage evidence, the flag rises.

Refinancing volume adds to the risk. Where an investor refinanced a mixed-use loan during the year, the split at the point of refinance carries through to the interest apportionment. Refinance recycling into a new mixed-purpose product is a common source of over-claim on the first return after the refinance.

What a landlord should actually do this month

Assume the ATO already has agent, bond and, if applicable, platform data on the property. Then reconcile from that base rather than from a summary.

Match gross rent to the bond and agent record. Total rent received in the return should reconcile to the sum of weekly rent times weeks-tenanted from the agent statement, cross-checked to the bond period. Under-declared rent is the fastest and cheapest mismatch to catch.
Split loan interest properly on any mixed-use loan. If the original loan or any subsequent redraw was used for a non-investment purpose, calculate the deductible interest share by loan balance at the time of each drawdown. Keep the loan statements as the working paper.
Reconcile repairs and maintenance to itemised agent line items. Categorise each spend as immediately deductible repair, capital works under Division 43 at 2.5% per year, or depreciable asset under Division 40. Do not smear an improvement into the repair line.
Declare all short-stay income at gross before platform commissions. The platform data the ATO receives is gross. Deduct platform fees as an expense line rather than netting them out of income.
Hold the evidence for five years. Bank statements, agent statements, receipts, loan drawdown records and depreciation schedules. Digital copies count as long as they are legible and complete.

A registered tax agent adds real value here. Not for the deduction inflation the ATO is targeting, but for the interest apportionment maths, the depreciation schedule, and the timing of amendments where earlier-year returns need correcting.

Bottom line

The 2025-26 tax year is the first full year with three ATO data-matching programs running at once against the same taxpayer cohort. The 2.3 million records from property management software, the 2.2 million records from state bond authorities and the quarterly Airbnb, Stayz and Booking.com feeds converge on the same address and the same bank account. Any 2025-26 return that materially misreports gross rent, over-claims loan interest without splitting mixed-use drawdowns, or dresses a capital improvement as a repair now runs against a matched dataset the ATO already holds.

The correct response is boring: reconcile from the agent statement, split the loan properly, itemise the repairs, keep the evidence for five years, lodge on time. The ATO's compliance recovery number for 2022-23 was $23 million on a much smaller feed. The 2025-26 number will be larger by construction.

If you want a running income and expense ledger that matches what your agent's software is already sending to the ATO, Propkt's expense tracking and mortgage tools give you the same reconciliation view before you lodge. Cheaper than a discrepancy notice arriving in October.