What Is Payroll Tax? A Comperhensive Guide for Australian Businesses

Payroll tax is often misunderstood as a federal tax, but it’s actually administered by state and territory revenue offices, not the ATO. That distinction matters because rates, thresholds, and obligations vary depending on where your employees work.

For businesses, payroll tax is not just a compliance issue. It directly affects cash flow, hiring decisions, and risk exposure.

This guide explains what payroll tax is, when it applies, what wages are included, how thresholds and grouping work, and how to manage registration and lodgement while avoiding common mistakes.

What is payroll tax?

Payroll tax is a state and territory-based tax that employers in Australia must pay when their total wage bill exceeds a certain amount. Think of it as a tax on employment – the more staff you hire and the more you pay them, the more likely you are to be liable for payroll tax.

Here are some highlights that you need to know as an employer. We’ll dive deeper into these later on in the guide.

• It’s separate from income tax: Payroll tax is different from the income tax you withhold from your employees’ wages (PAYG withholding). You pay payroll tax on top of regular wages and other taxes.
• It’s based on your total wages bill: The tax applies to your entire payroll, including salaries, bonuses, commissions, and often superannuation contributions.
• Thresholds vary by state: Each state and territory sets its own threshold at which payroll tax kicks in.
• Rates differ, too: Not only do the thresholds vary, but the tax rates also differ by state. They typically range from about 4.75% to 6.85% of your wages above the threshold – some states will offer reduced rates to rural and remote employers.
• It’s a self-assessed tax: As an employer, it’s your responsibility to register for payroll tax when you reach the threshold, calculate what you owe, and make regular payments (usually monthly).
• Grouping provisions apply: If your business is owned by a holding company, you might need to combine all the wages across the group to determine if you’ve reached the threshold.
• There are some exemptions: Certain types of businesses or specific categories of wages might be exempt from payroll tax. This often includes non-profit organisations or wages paid to apprentices and trainees.

For many small to medium businesses, reaching the payroll tax threshold is a significant milestone. It often coincides with substantial growth but also represents a new ongoing expense to manage.

Is payroll tax the same as PAYG withholding?

Payroll tax is separate from PAYG withholding and other payroll obligations. A business might withhold PAYG from wages, pay super contributions, and still separately owe payroll tax if its total wages exceed the state threshold.

Here is a quick breakdown of different types of business taxes and when they might apply.

Who needs to pay payroll tax?

You are generally required to pay payroll tax if your business’s total Australian taxable wages exceed the specific threshold set by the state or territory revenue office where you employ staff.

Key factors that determine your liability include:

• Total Australian wages: Thresholds are based on your total wages paid across all of Australia, not just within a single state. Even if you operate in multiple jurisdictions, your total Australian payroll determines if you have hit the threshold in any given state.
• Grouping rules: If your business is part of a group of related entities, those entities may be treated as a single employer. This means their combined wages will be used to determine if the threshold has been reached.

Once your total wages exceed the relevant threshold, you must register with the appropriate revenue office. This triggers ongoing obligations, including lodging regular monthly returns and completing an annual reconciliation at the end of the financial year.

Payroll tax thresholds and rates by state and territory

As stated before, each state and territory in Australia sets its own payroll tax threshold and rate. Here’s a breakdown of the current thresholds, rates, and payment deadlines.

Notes:

• These rates and thresholds are current as of the 2025-2026 financial year.
• Some states have variable rates or additional levies for higher wage bills.
• Victoria offers a reduced rate of 1.2125% for regional employers.
• South Australia has a variable rate from 0% to 4.95% for wages between $1.5M and $1.7M.
• These thresholds are subject to change, so you should check back annually for the latest information from your state or territory revenue office.

What wages count for payroll tax?

When we talk about wages for payroll tax, we’re not just talking about regular salaries. The table below summarises what you need to include.

Example: A bonus paid at year-end and employer super contributions are typically included in taxable wages, which can push a business over the threshold.

Do contractor payments count for payroll tax?

Yes, in many cases they can.

Some contractor payments are treated as taxable wages under contractor provisions, depending on the jurisdiction. Exemptions may apply based on factors such as:

• Nature of the work (labour vs materials)
• Whether services are provided to the public
• Length and structure of engagement
• Specific statutory exemptions

Because contractor rules are complex and frequently audited, businesses relying on contractors should seek advice before assuming payments are excluded.

How do payroll tax grouping rules work?

Payroll tax grouping rules can treat related businesses as one group for payroll tax threshold purposes.

Grouping may apply where entities are connected through:

• Common ownership or control
• Shared employees
• Related companies or trusts
• Business connections or shared resources
• Tracing of interests across structures

Grouping rules are critical because they aggregate the wages of related entities, meaning businesses often share a single threshold rather than having their own. This frequently causes a business to exceed the payroll tax limit even if it would be exempt on its own.

Grouping applies regardless of whether entities have separate ABNs. While de-grouping can sometimes be requested, it is a limited and complex process.

How do interstate wages affect payroll tax?

If your business operates across multiple states, you need to consider your total Australian wages, not just what you pay employees in one specific location. Each state and territory looks at this total to decide if you have hit their payroll tax threshold.

When you have employees in different places, tax rules often use “nexus” to decide which state has the right to tax those wages. This determines where you need to register and pay.

Because these rules can be tricky, it’s always a good idea to check the specific guidance provided by the revenue office in every state where you employ staff.

When do employers need to register for payroll tax?

You generally need to register for payroll tax once your total taxable wages exceed the relevant monthly or annual threshold set by the jurisdiction in which you employ staff.

Registration rules and timeframes vary by state and territory, so it’s important to understand the specific requirements for your location.

While modern payroll software is a helpful tool for tracking payments, it doesn’t replace your legal duty to verify and comply with the specific registration laws and deadlines applicable to your business.

Here is a quick checklist for when to register for payroll tax:

• Review total monthly wages.
• Include super, bonuses, and taxable allowances.
• Include interstate wages.
• Check related entities for grouping.
• Review contractor payments.
• Compare against thresholds.
• Register with the relevant revenue office if required.

To ensure ongoing compliance, you should proactively monitor your business wages before crossing the threshold. Staying ahead of these registration obligations helps avoid potential penalties and ensures a smooth transition into the payroll tax system.

When are payroll tax returns due?

Most registered employers are required to lodge payroll tax returns monthly. In addition to these regular filings, you will normally need to complete an annual reconciliation or return to finalise your tax obligations for the financial year.

The exact due dates vary depending on your specific state or territory. While monthly returns are typically due shortly after the end of each month, the annual reconciliation is usually due after 30 June.

What happens if payroll tax is paid late or incorrectly?

Failing to pay payroll tax can result in severe consequences, including:

• Interest charges
• Penalties
• Reassessments and audits
• Back payments
• Grouping or contractor reassessments
• Cash flow pressure
• Broader compliance risks

State revenue offices conduct regular audits to ensure compliance. To prepare for these, maintain accurate records of all wages paid, including details of any exemptions or rebates claimed.

Payroll tax exemptions and concessions

As an employer in Australia, you can save significant amounts of money by benefiting from exemptions and rebates.

Common categories include:

• Apprentices and trainees
• Charitable organisations
• Public hospitals and health entities
• Schools and educational bodies
• Parental leave payments
• Volunteer emergency service leave
• Regional employer concessions
• Government-supported wage subsidies

These exemptions and rebates can vary significantly between states and territories. Additionally, the rules and eligibility criteria can change from year to year.

Common payroll tax mistakes

While payroll taxes can be complex, you can avoid many common mistakes.

Mistake 1: Thinking payroll tax is federal

Payroll tax is often confused with federal taxes like PAYG withholding, but it is administered by state and territory revenue offices, not the ATO. This can lead to missed registrations or incorrect reporting.

To prevent this, identify where your employees are located and check the relevant state or territory revenue office rules.

Mistake 2: Only counting base salaries

Many employers underestimate their liability by only including base wages. In reality, taxable wages can include bonuses, allowances, superannuation, directors’ fees, and fringe benefits.

To avoid errors, review all payroll components and ensure your payroll system captures total taxable wages, not just salaries.

Mistake 3: Ignoring grouping rules

Businesses operating through multiple entities may assume each entity gets its own threshold. However, grouping rules can combine related entities, meaning they share a single threshold.

To prevent surprises, assess ownership structures, shared employees, and control relationships early. Seek advice if entities may be grouped.

Mistake 4: Assuming contractors are excluded

Contractors are not automatically exempt from payroll tax. Many contractor payments can be treated as taxable wages under contractor provisions, depending on the arrangement.

To reduce risk, review contractor agreements carefully and confirm whether specific exemptions apply before excluding payments.

Mistake 5: Missing interstate wage rules

Employers with staff in multiple states may overlook how total Australian wages and nexus rules affect their obligations. This can result in underpayment or reporting in the wrong jurisdiction.

To prevent this, track where work is performed and apply the correct state-based allocation rules.

Mistake 6: Relying on outdated thresholds

Payroll tax thresholds in Australia can change from year to year, and relying on outdated figures can lead to incorrect calculations.

To stay compliant, check the latest thresholds and rates on the relevant revenue office website at the start of each financial year.

Mistake 7: Registering too late

Some businesses only consider payroll tax after exceeding the threshold, which can trigger late registration penalties and backdated liabilities.

To avoid this, monitor wage growth regularly and register as soon as you are approaching or exceed the relevant threshold.

Payroll tax checklist for employers

• Identify every state or territory where employees work.
• Calculate total Australian taxable wages.
• Include salaries, bonuses, allowances, super, and directors’ fees.
• Review contractor payments.
• Review fringe benefits.
• Check grouping across related entities.
• Compare wages against thresholds.
• Check registration rules.
• Register if required.
• Set up payroll tax reporting in software.
• Keep accurate records.
• Lodge monthly returns.
• Complete annual reconciliation.
• Review thresholds annually.

When should you get payroll tax advice?

Navigating the complexities of payroll tax in Australia can be challenging, but understanding your obligations is crucial for compliance and financial planning. By staying informed about thresholds, rates, and deadlines specific to your state or territory, you can ensure your business meets its payroll tax responsibilities.

Need some help? Lawpath offers a suite of business tax compliance services, helping you navigate Australia’s tax laws.

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