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How are Bonds Treated for Tax Purposes in Australia?

Published 26 June 2026 · Last updated 26 June 2026

Quick Answer

In Australia, rental bonds are security deposits held to cover potential damage or unpaid rent. For tax purposes, bonds are not income when received but may be taxable if retained after a tenancy ends. Landlords must declare any bond amount kept as assessable income in their tax return.

A rental bond in Australia acts as a security deposit held by the landlord or property manager to cover any unpaid rent or damages at the end of a tenancy. It's a standard practice to require a bond, typically equivalent to four weeks' rent, which is lodged with the relevant state authority. For tax purposes, the treatment of a bond is quite specific.

When a bond is initially received, it is not considered assessable income. Instead, it remains a liability until the end of the tenancy. The bond only becomes taxable if part or all of it is retained by the landlord to cover expenses like unpaid rent or property damage. In such cases, the retained amount is considered assessable income and must be declared in the landlord's tax return for that financial year.

To see how this plays out, consider a landlord with a property in Melbourne who receives a bond of $2,000. Suppose at the end of the tenancy, the tenant leaves owing $500 in rent and causes $300 worth of damage. The landlord retains $800 from the bond. This $800 must be declared as assessable income in the landlord's tax return, potentially increasing their taxable income and resulting in a higher tax liability.

In our experience reviewing thousands of properties across Australia, we often see landlords mistakenly assuming that all bond amounts are non-taxable. Another common oversight is failing to lodge the bond with the appropriate state authority, which can lead to penalties. Many landlords also overlook the need to adjust their declared income when retaining bond amounts, potentially leading to ATO audits.

The answer can differ depending on your situation. For example, in New South Wales, bonds must be lodged with the Rental Bond Board, while in Victoria, they go to the Residential Tenancies Bond Authority. The rules also vary if the property is owned by a company or held within a Self-Managed Super Fund (SMSF). Additionally, how you handle bonds can differ for commercial properties compared to residential ones.

Given these complexities, it's advisable to seek professional advice. A Chartered Quantity Surveyor can help ensure your bond handling aligns with tax regulations, while an accountant can provide guidance on reporting retained bond amounts correctly.

  • Review your current bond handling process to ensure compliance with state regulations.
  • Ensure all bonds are lodged with the correct authority promptly.
  • Calculate and declare any retained bond amounts as assessable income.
  • Consult with a Chartered Quantity Surveyor to optimise your tax strategy.
  • Work with your accountant to accurately report all income and expenses.
  • Keep detailed records of all bond transactions and correspondence with tenants.
  • Frequently Asked Questions

    Is a rental bond considered income?

    Initially, a rental bond is not considered income. It becomes assessable income if retained for unpaid rent or damages at the end of a tenancy.

    How should I lodge a rental bond?

    Bonds must be lodged with the relevant state authority, such as the Rental Bond Board in NSW or the Residential Tenancies Bond Authority in VIC.

    What happens if I don't lodge the bond?

    Failing to lodge a bond can result in penalties and non-compliance with state regulations.

    Do I need to declare retained bond amounts on my tax return?

    Yes, any portion of the bond retained to cover costs like unpaid rent or damages must be declared as assessable income.

    Are there different rules for commercial properties?

    Yes, commercial properties may have different lease terms and obligations, and it's important to consult a professional for specific guidance.

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    Written by Koste Team · Koste Chartered Quantity Surveyors · AIQS Member · RICS Member · TPB Registered · 1300 669 400 · info@koste.ai