Payroll Tax in Australia: Rules, Thresholds, and Employer Obligations

Published: Jun 6, 2025 3:18:57 PM

A significant part of any company's financial responsibilities is payroll tax. The concept of payroll tax seems intricate, especially in the Australian context. Yet, understanding the basics helps you stay informed. This article explains the fundamentals, including what payroll tax is, who is responsible for paying it, when it must be paid, how to register, and how to calculate it. Payroll tax comprehension is essential for efficient operations and avoiding fines; it's not only about compliance. To help you understand payroll tax, let's examine these key areas

 

What is payroll?

Learning about payroll tax requires a clear understanding of what payroll is. 

Payroll is simply what a business pays its employees for the service they provide. It is the compensation or amount of money that is paid to employees for a period of service, daily or monthly, on a given date. There is a lot that goes into it, including tracking the hours an employee worked, calculating the pay, and finally completing the payment. This signals why a company needs a good payroll system that makes the process easier and free from errors.

 

What is Payroll Tax?

In Australia, payroll tax is a state or territory tax charged on the taxable wages that employers pay their employees. Payroll tax is calculated as a percentage of an employee’s taxable wages, but it is paid by the employer and not deducted from the employee’s salary.

Payroll tax is one of the important state-based taxes paid to the state or territory where the company operates or where its employees work. Hence, it is imposed and administered by the individual state governments rather than the national government. This further means that the thresholds, rates, rulings, and legislation are specific and unique to the particular state. However, attempts have been made to harmonise most areas of payroll tax across states in Australia.

 

Who is Responsible for the Payroll Tax?

It is the employer who is duty-bound to calculate and pay the tax. The employee has no responsibility related to payroll tax. However, not all businesses are subject to payroll tax. Instead, it is only charged if and when the total taxable wages of a company exceed the set threshold. For such a company, payroll tax becomes mandatory. 

However, any public and charitable organizations are exempt from the payroll tax. Public hospitals, non-profit private hospitals, non-profit private schools, government, public benevolent institutions, and charitable organisations are examples of employers that are exempt from payroll tax.

 

Registration for Payroll Tax

Businesses in Australia are required to keep an eye on their salary levels and register for payroll tax when their total wages surpass the threshold established by the state or territory in which they conduct business. After reaching the threshold, you have seven days to finish the registration process.

  1. Identifying the applicable threshold for your state or territory is the first step in the procedure.
  2. Compiling necessary data, including personnel information, wage records, and business information.
  3. The final step is applying to the state or territory's revenue office.

Every state or territory has its own registration criteria and portal. Therefore, employers can register their business through the relevant state’s website.

 

When to Pay Payroll Tax?

Generally, an employer is required to pay this tax every month in Australia. However, there can be exceptions, depending on the state or territory, where you may be able to pay the tax altogether at half the year or the end of the year. 

When businesses register for payroll tax, they are informed whether they are required to pay tax on a monthly, quarterly, or yearly basis. 

This tax is a self-assessed tax, which means that the employers must calculate, report, and ensure the payment of the tax before the set deadline on their own initiative. The payroll tax for a particular month is due on the 7th of the following month.

 

What are Taxable Wages?

Payroll tax is only calculated on taxable wages. Taxable wages are the types of or the total of an employee’s earnings that are subject to tax. In contrast, other types of compensation that are not subject to payroll tax are considered non-taxable wages. Identifying the taxable and non-taxable wages is important, as it allows companies to pay the tax accordingly. It helps improve accuracy, avoiding overpayments or underpayments. 

In Australia, businesses must pay payroll taxes for compensation types mentioned below.

  • Salaries
  • Wages
  • Bonuses and Commissions
  • Allowances
  • Superannuation
  • Fringe benefits
  • Shares and options
  • Termination payments

Payroll tax needs to be paid if the total taxable wages exceed the given threshold. Total taxable wages refer to the combined amount of all wages and benefits subject to payroll tax. A specific percentage of this total is then calculated and paid by the employer as tax.

 

Calculating Payroll Tax

A breakdown of how payroll tax is calculated allows us to make the concept simple. 

The building block for payroll tax is your company’s payroll. It is important to have a proper payroll system that accurately calculates the employees’ wages, including overtime, bonuses, and commissions. An error-free payroll makes the job easier.

The first step is to calculate the total taxable wages of the company. Next, the total taxable wages amount is compared with the set threshold of the relevant state. If the total wages exceed the threshold, the business is liable for tax. 

Finally, the applicable payroll tax is calculated based on the total taxable wages. In Australia, the payable tax amount is determined by the tax rate of the specific state. These calculated amounts need to be reported to the state revenue office, and taxes should be paid on time.

 

The Purpose of the Payroll Tax

As an employer, you might sometimes wonder why you're required to pay payroll tax and where that money goes. While it may feel like just another business expense, the payroll tax you pay plays a much larger role beyond your organisation. It helps fund essential public services and infrastructure, such as healthcare, education, transport, and emergency services, that benefit not only your employees but the broader community.

By meeting your payroll tax obligations, you're actively contributing to the functioning and well-being of the society in which your business operates. In this way, payroll tax is more than a compliance requirement—it's a reinvestment into the environment that supports your workforce and business growth

 

Mistakes to Avoid

Calculating payroll tax, maintaining accuracy, and updating can be overwhelming. Below are a few mistakes to keep away from.

  • Not following the updated rates, threshold, or additional rulings: Using the wrong values in calculations can result in underpayment or overpayment.  
  • Wrong categorisation of employees and contractors: Identifying the two parties is important, as rulings differ. 
  • Poor documentation: Improper record-keeping and lack of maintenance. Inaccuracy and errors in calculation. 
  • Not including all taxable components: To avoid underpayment, it is necessary to include all types of taxable wages in calculations. 


To better manage your payroll tax and avoid risks, follow the tips below.

  • It is important to understand the state-specific rules in Australia as well as other important conditions related to payroll tax.

Ex: Difference between independent contractors and employ Taxable and non-taxable wages

  • Companies should utilise payroll software to automate the calculations and make payroll processing convenient. It is certainly a smart investment, rather than a cost.
  • Training and educating staff on payroll processes and updated information while maintaining and reviewing the records.
  • Consulting experienced experts who are well informed about the intricacies of payroll and tax. 

 

Conclusion

Understanding payroll tax is essential for every employer operating in Australia. While it can seem complex due to varying state and territory rules, staying informed ensures that your business remains compliant, avoids penalties, and contributes meaningfully to the community through vital public services.

By recognising your obligations, registering appropriately, and calculating payroll tax correctly, you are not only meeting legal requirements but also supporting the broader infrastructure that underpins your business environment.

To manage payroll tax efficiently, invest in the right systems, keep accurate records, stay updated on state-specific rules, and seek expert advice when needed. Making payroll tax compliance a priority within your finance or HR team will help safeguard your business and support long-term operational success