Inland Revenue is Watching Your Residential Property Transactions

Anyone keeping up with the debate on the housing sector will be aware that the tax system remains one of the tools being used to influence property market behaviour. The bright-line test, which taxes profits made on residential land acquired and disposed of within the applicable bright-line period, subject to some exceptions, continues to be a key compliance focus for Inland Revenue—even after recent legislative changes.

Major Legislative Changes from 1 July 2024

The bright-line test landscape changed significantly on 1 July 2024, when the government reduced the bright-line period from 10 years (and 5 years for new builds) back to just 2 years.

Key Changes Include:

Legacy Bright-Line Rules Still Apply

For properties sold on or before 30 June 2024, the old rules continue to apply:

• Property purchased between 29 March 2018 and 26 March 2021: 5-year bright-line period

• Property purchased on or after 27 March 2021: 10-year bright-line period (or 5 years for qualifying new builds with Code Compliance Certificate issued after March 2021)

IRD's Intensive Data Monitoring Continues

Despite the reduction in the bright-line period, Inland Revenue's compliance activities have actually intensified significantly in 2024-2025.

How IRD Monitors Property Transactions

Inland Revenue actively monitors residential property transactions through data-sharing arrangements with Land Information New Zealand (LINZ). The land transfer tax statement completed by both buyers and sellers includes IRD numbers to identify the parties to each transaction. This creates a comprehensive database that IRD uses to:

• Track when properties are bought and sold

• Cross-match property sales against income tax returns filed

• Identify potential non-compliance with bright-line and other property tax rules

• Target enforcement activities at high-risk taxpayers

Recent Compliance Statistics Show Ramped-Up Enforcement

Recent data published by Inland Revenue and reported in industry media demonstrates a dramatic increase in property tax compliance activity:

• In the 2024-25 financial year, IRD discovered $228 million in undeclared income from property investors and developers—a 46% increase from the previous year

• IRD opened 3,600 audits in the first half of the 2024-25 financial year (July to December 2024)—50% more than the same period in the prior year

• The government provided $35 million in new funding in Budget 2025, in addition to the ongoing $27 million per year from Budget 2022, specifically to ramp up tax compliance efforts

• Property developers were a major target: $92.2 million in undeclared income discovered across 567 closed cases, with an average assessment of $162,753 per case

• Flippers and speculators caught under the bright-line test: significant undeclared income identified through systematic data matching

• Rental property owners: $11.4 million in discrepancies from 485 cases, averaging $23,705 per case

Latest Compliance Data (2024-2025)

Inland Revenue has released updated compliance statistics showing a significant escalation in enforcement activity:

• In just the first nine months of the 2024-25 financial year, IRD uncovered approximately $150-153 million in undeclared tax from the property sector (including both income tax and GST)

• This partial-year figure nearly matches the $156.8 million uncovered in the entire 2023-24 financial year, demonstrating sharply increased compliance activity

• IRD conducted a major compliance campaign specifically targeting bright-line test non-compliance, assisting more than 550 customers with bright-line issues

• This campaign generated $3.68 million in voluntary disclosures in a single year from taxpayers who came forward before IRD contacted them

• IRD's automated systems now screen over 3 million tax returns annually, leading to approximately 30,000 compliance reviews

• Property-related tax debt has resulted in 26 bankruptcies and seven prosecutions for tax evasion in recent quarters, with more enforcement actions expected

Historical Compliance Patterns (2019 Analysis)

Earlier compliance reviews by Inland Revenue identified persistent taxpayer behaviour patterns that remain relevant today:

• Of property sales during the bright-line period, approximately 33% correctly reported bright-line income in their tax returns

• A significant 37% were not actually subject to the bright-line rules (mainly due to the main home exemption) but had failed to complete the land transfer tax statement correctly—triggering unnecessary IRD investigation

• When IRD contacted taxpayers about potential non-compliance, 80% immediately corrected their mistake, demonstrating that most errors were unintentional

• Only approximately 3% required further enforcement action, indicating deliberate non-compliance

The critical takeaway: a large proportion of IRD follow-ups could be avoided simply by completing the land transfer tax statement accurately at the time of sale.

What Taxpayers Need to Do Now

Understand Your Current Bright-Line Obligations

• Check whether you will be subject to the bright-line rules when selling residential property

• The rules can be complex, especially with the transitional provisions and changing dates

• Use IRD's property tax decision tool (recently updated) to help determine if your property sale might be taxable

• Your usual tax advisor can help clarify your specific situation

Complete Your Land Transfer Tax Statement Correctly and in Full

This is critical for avoiding unnecessary IRD scrutiny:

• The land transfer tax statement is completed as part of the sale and purchase documents

• Tick the main home box if the main home exclusion applies—this simple step can

  prevent IRD investigation

• Provide accurate information about your tax residency status

• Include your correct IRD number

• A large proportion of IRD follow-ups could be avoided simply by completing this form

  accurately

Correctly Report Bright-Line Income in Your Tax Return

If your property sale is subject to the bright-line test:

• IRD has an optional bright-line property form IR833 that can be completed and submitted with your income tax return (paper form or myIR)

• Include any taxable gain on sale in the Residential Income box in your income tax return—this is a dedicated box specifically for bright-line income

• Calculate your gain correctly (generally sale price minus purchase price and certain costs)

• Remember: you cannot claim a loss on sale under the bright-line rules in most circumstances

• IRD has sale price data from LINZ, so can estimate what should be included as taxable income

Consider Interest Deductibility Changes

Alongside the bright-line changes, interest deductibility rules for residential rental properties have also been restored in stages:

• For the year ended 31 March 2025: 80% of interest paid on residential rental lending

• was deductible

• From 1 April 2025 onwards: 100% interest deductibility has been restored for

• residential rental properties

• This applies to both pre- and post-27 March 2021 lending

Be Proactive - Don't Wait for IRD Contact

Given the significant increase in compliance activity and IRD's enhanced data analytics capabilities:

• Review your property portfolio and recent transactions with your accountant

• If you've made an error or omission in past returns, consider making a voluntary disclosure before IRD contacts you

• Remember that 80% of taxpayers correct their mistakes when IRD first contacts them - it's better to be proactive

• This is a zero-tolerance environment with substantial government funding behind enforcement

IRD's Enhanced Capability and Focus

Recent media reports and IRD statements confirm that the department has significantly enhanced its property compliance capabilities:

• Advanced data analytics systems screen over three million tax returns

• Sophisticated cross-matching between LINZ property data, tax returns, Companies Office records, and trust data

• IRD has identified 200 business owners with multiple properties held across different

• structures (companies, trusts, personal names) and is pursuing tax debt collection

• 26 bankruptcies were declared in one recent quarter for property-related tax debt

• Seven completed prosecutions for tax evasion in one quarter, with more expected as enforcement activities increase

The Bottom Line

The bright-line test's shorter 2-year timeframe makes it easier - not harder - for Inland Revenue to monitor compliance through data analytics. IRD is watching property transactions closely and has the technology, funding, and political mandate to enforce compliance aggressively.

It is worth understanding your obligations and requirements in relation to the bright-line rules when selling residential property and when filing your income tax return to save the hassle—and potential penalties—of dealing with Inland Revenue enquiries at a later date.

Need Help?

If you are unsure of your tax position when selling your property, or need assistance with:

• Understanding whether the bright-line test applies to your situation

• Completing land transfer tax statements correctly

• Calculating and reporting bright-line income

• Making voluntary disclosures for past omissions

• Restructuring property holdings for tax efficiency

Please contact our office so we can advise you on your specific circumstances.