From 1 July 2027, more businesses and individuals paying PAYG instalments are expected to have the option of reporting and paying monthly instead of quarterly. The Australian Taxation Office (ATO) may also gain the power to require certain taxpayers to make monthly payments if they have a history of failing to meet their tax obligations.
Announced in the 2026-27 Federal Budget, these proposed changes are currently subject to draft legislation and are not yet law. However, they could affect how businesses manage their cash flow and tax obligations, making it worthwhile to understand the potential impact ahead of time.
What Are the Proposed Changes?
PAYG instalments are regular payments towards your expected annual income tax liability. They allow businesses and individuals to spread their tax payments throughout the year rather than facing a larger tax bill when their annual tax return is assessed.
Currently, most taxpayers in the PAYG instalment system pay quarterly, while certain larger taxpayers are already required to pay monthly.
Under the proposed changes, the following arrangements are expected to apply from 1 July 2027:
- Monthly payments as an option: Most taxpayers already paying PAYG instalments could choose to report and pay monthly instead of quarterly.
- Mandatory monthly payments for certain taxpayers: The ATO could require taxpayers with a demonstrated history of failing to meet their tax obligations to move to monthly payments.
- Instalments that better reflect business performance: The changes form part of broader reforms designed to make tax instalments more responsive to current business performance, including through accounting software.
Monthly instalments would generally be due by the 21st of the following month, subject to the final rules.
For more information, visit the ATO’s guidance on dynamic PAYG instalments.
How Could Monthly Payments Affect Cash Flow?
For many businesses, the main consideration will be whether paying monthly makes cash-flow management easier or creates additional financial pressure.
Potential benefits
Smaller, more frequent payments may be easier to budget for than larger quarterly amounts. This could be particularly beneficial for businesses with steady monthly income, regular bookkeeping and established monthly reporting processes.
Paying monthly may also help businesses monitor their tax position more closely throughout the year. If instalments better reflect current earnings, there may be less risk of paying too much or too little during the year.
However, the actual benefits will depend on how the final rules operate and each taxpayer’s circumstances.
Potential drawbacks
On the other hand, monthly payments mean money leaves the business more frequently. This could reduce financial flexibility for businesses experiencing seasonal income, irregular customer payments or tight working capital.
More frequent reporting may also create additional administrative work, although accounting software could help automate parts of the process.
For businesses that rely on retaining cash between payment dates, quarterly payments may remain the more suitable option.
Ultimately, the right approach will depend on your income patterns, available cash reserves and existing accounting processes.
Who Could Be Required to Pay Monthly PAYG Instalments?
Businesses and individuals with a history of late lodgements, overdue tax debts or repeated failures to meet their tax obligations should pay particular attention to these proposed changes.
If the legislation becomes law, the ATO could require affected taxpayers to move to monthly PAYG instalments. This may create additional cash-flow pressure, particularly for businesses that are already experiencing financial difficulties.
However, these changes are not only relevant to taxpayers with compliance issues.
Taxpayers with a good compliance record may also consider voluntarily moving to monthly payments if doing so would make budgeting and tax management easier. Others may find that retaining their existing quarterly arrangements is more appropriate.
What should you do now to prepare for monthly PAYG instalments?
Although the proposed legislation has not been finalised, businesses can take several practical steps to prepare for the potential changes.
- Review your cash flow: Consider whether monthly payments would fit your income and expense patterns better than quarterly payments.
- Check your accounting processes: Assess whether your bookkeeping, reporting and banking arrangements can accommodate more frequent payments.
- Review your current PAYG instalments: Compare your existing instalments with your expected annual income tax liability. If you notice any significant differences, consider discussing them with your accountant.
- Address outstanding tax obligations: If you have overdue tax debts or a history of missed lodgement deadlines, seek professional advice early to manage your obligations and reduce the risk of further difficulties.
Monthly payments would change the timing of your tax payments, not your underlying tax liability. Planning ahead can help you avoid unexpected cash-flow pressure and choose an approach that suits your business.
We will provide further updates as the rules are finalised. In the meantime, contact us if you would like to review your current PAYG instalments or assess how monthly payments could affect your cash flow.
Frequently Asked Questions
Are monthly PAYG instalments law yet?
No. The changes were announced in the 2026–27 Federal Budget and are currently the subject of draft legislation. The proposed start date is 1 July 2027.
Will monthly PAYG instalments be compulsory?
Not for most taxpayers. Most taxpayers already paying PAYG instalments could choose to pay monthly. However, the ATO could require taxpayers with a demonstrated history of failing to meet their tax obligations to pay monthly.
When would monthly instalments be due?
Monthly instalments would generally be due by the 21st of the following month, subject to the final rules.
Will paying monthly change how much tax I pay?
No. Monthly payments would change the timing of your tax payments, not your underlying tax liability.
Need help?
If you are unsure whether monthly PAYG instalments would be suitable for your business, Pitt Martin Group can help you review your current tax instalments, assess the potential impact on your cash flow, and understand how the proposed changes may affect your tax obligations. We can also help you consider the most appropriate payment arrangement based on your business circumstances.
Pitt Martin Group is a firm of Chartered Accountants, providing services including taxation, accounting, business consulting, self-managed superannuation funds, auditing and mortgage & finance. We spend hundreds of hours each year on training and researching new tax laws to ensure our clients can maximize legitimate tax benefit. Our contact information are phone +61292213345 or email info@pittmartingroup.com.au. Pitt Martin Group, Sydney tax accountants, is located in the convenient transportation hub of Sydney’s central business district. Our honours include the 2018 CPA NSW President’s Award for Excellence, the 2020 Australian Small Business Champion Award Finalist, the 2021 Australia’s well-known media ‘Accountants Daily’ the Accounting Firm of the Year Award Finalist and the 2022 Start-up Firm of the Year Award Finalist, and the 2023 Hong Kong-Australia Business Association Business Award Finalist.
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This content is for reference only and does not constitute advice on any individual or group’s specific situation. Any individual or group should take action only after consulting with professionals. Due to the timeliness of tax laws, we have endeavoured to provide timely and accurate information at the time of publication, but cannot guarantee that the content stated will remain applicable in the future. Please indicate the source when forwarding this content.
By Nora Pham @ Pitt Martin Tax









