How to Calculate Withholding Tax in Australia: Step-by-Step Guide for Employers
Many Australian employers find it challenging to work out how much tax to withhold from payments to employees and other recipients. Understanding how to calculate withholding tax is essential for meeting your obligations to the Australian Taxation Office (ATO) and helping your employees avoid unexpected bills at tax time.
Understanding PAYG Withholding Tax in Australia
When you run a business and make payments to workers, you need to know how withholding taxes work and what your responsibilities are. Pay As You Go (PAYG) withholding tax is a system where you withhold tax from payments you make to employees, contractors, and other payees, then send this money to the Australian Taxation Office ATO for tax purposes.
What Is PAYG Withholding Tax?
PAYG withholding tax is a way for the Australian government to collect income tax throughout the financial year. As an employer, you need to calculate and withhold tax from each payment you make to employees and other recipients. This helps your team meet their tax obligations and reduces the risk of a large tax bill when they lodge their tax return.
The amount of tax withheld depends on several factors, such as the employee’s income, whether they have provided a Tax File Number (TFN), if they are claiming the tax-free threshold, and if any tax offsets apply. The ATO provides income tax rates and withholding rates to guide your tax calculations.
Who Needs to Register for PAYG Withholding?
If you pay wages, salaries, or other payments subject to withholding tax, you need to register for PAYG withholding. This applies to businesses making payments to employees, company directors, religious practitioners, labour hire workers, and contractors who haven’t provided an Australian Business Number (ABN). You also need to withhold tax from payments such as dividends paid, interest earned, and other payments to non-residents or offshore entities, depending on international tax treaties and the nature of the payment.
Setting Up PAYG Withholding for Your Business
Getting PAYG withholding set up correctly from the start can save you time and stress. Here’s what you need to know to get your business ready for withholding tax.
How to Register for PAYG Withholding
If you have an Australian Business Number, you can register for PAYG withholding tax online using your myGovID. If you don’t have an ABN, you can register by phone or by submitting the right form to the ATO. You may also want to speak with a tax professional or your BAS agent for help with registration and ongoing compliance.
Understanding Your PAYG Withholding Obligations
Once you’re registered, you need to calculate the correct withholding amount for each payment, report the tax withheld to the ATO, and pay the withheld tax by the due date. Your reporting frequency (monthly, quarterly, or more often) depends on your total annual withholding amounts. If you don’t meet these obligations, you could face penalties from the Australian Taxation Office.
To avoid confusion or mistakes with PAYG withholding obligations, read our article on What is PAYG Withholding for a clear explanation of how it works and what your business needs to do to stay compliant.
Step-by-Step Guide to Withholding Tax Calculations
Calculating how much tax to withhold from payments is a key part of being an employer. The ATO provides several tools and methods to help you work out your withholding amounts.
Method 1: Using ATO Tax Tables
The most common way to calculate withholding tax is to use the ATO’s tax tables or online calculator. These resources are updated each financial year to reflect changes in income tax rates and the Medicare levy. To use this method:
- Work out your employee’s gross wages for the pay period.
- Check which tax table applies (weekly, fortnightly, or monthly).
- Confirm if the employee has claimed the tax-free threshold on their tax file number declaration.
- Find the withholding amount in the tax table.
- Adjust for any tax offsets, lump sum payments, or special situations (like Medicare levy exemptions).
Method 2: Using the Formula Method
If you use payroll software, you can apply the ATO’s formulas for withholding tax calculations. These formulas use coefficients based on income brackets and whether the tax-free threshold is claimed. This method is helpful for businesses with more complex payroll needs or those who want to automate tax calculations.
For example, if an employee earns $975 per week and has claimed the tax-free threshold, you will use the relevant coefficients from the ATO’s Schedule 1 to calculate the tax withheld. The result is the amount you need to withhold from their pay and send to the ATO.
Example Calculations
Suppose you have an employee who earns $975 per week, has provided a tax file number, and claims the tax-free threshold. Using the ATO’s tax tables, you find the withholding amount for that wage. If the employee is entitled to tax offsets or has other deductions, you adjust the amount accordingly. The tax withheld is then reported and paid to the ATO as part of your PAYG withholding obligations.
For other payments, such as dividends paid to shareholders or interest earned on investments, you may need to apply different withholding rates, especially for non-residents or offshore banking units. International tax treaties can also affect the amount you need to withhold.
Special Considerations for Different Types of Payments and Recipients
Not all payments and recipients are treated the same way for withholding tax. Here are some key points to keep in mind.
Withholding for Foreign Residents and Non-Residents
Foreign residents and non-resident recipients are not entitled to the tax-free threshold and may have higher withholding rates. If you pay dividends, interest, or other payments to non-residents, you need to check the relevant international tax treaties and apply the correct withholding tax rate. For franked dividends, the treatment may differ depending on whether the recipient is an Australian resident company or a non-resident.
Withholding When No ABN Is Provided
If a contractor or supplier doesn’t provide an Australian Business Number, you usually need to withhold tax from their payment at the top marginal rate plus the Medicare levy. This applies to payments for services, investments, and some other payments. The withheld tax is reported and paid to the ATO.
Voluntary Agreements and Other Payments
Some workers, such as contractors, may enter into a voluntary agreement with your business to have tax withheld from their payments. This helps them manage their tax obligations and simplifies their tax return process. You’ll need to calculate and withhold the correct amount based on the agreement and report it as part of your PAYG withholding.gs through your business activity statement (BAS) or activity statement. The ATO may change your reporting cycle based on your annual report of withheld amounts, so it’s important to stay up to date with your obligations.
Reporting and Paying PAYG Withholding Tax
Once you’ve worked out the withholding amounts, you need to report and pay the tax withheld to the ATO on time.
Reporting Frequencies and Business Activity Statements
Your reporting frequency depends on how much tax you withhold each year. Small withholders (up to $25,000 withheld annually) usually report and pay quarterly using a Business Activity Statement (BAS). Medium withholders ($25,001 to $1 million annually) report and pay monthly, while large withholders (over $1 million annually) may need to pay more frequently.
To avoid late lodgment penalties and confusion about your BAS reporting, read our article on How to Lodge Your BAS for a clear, step-by-step guide to staying compliant and meeting all key deadlines
Using Single Touch Payroll
Single Touch Payroll (STP) makes reporting PAYG withholding easier. Each time you pay your employees, your payroll system sends the payment details, tax withheld, and superannuation information directly to the ATO. Employees can then view their payment summary and income statement online through their myGov account.
To avoid hefty fines and compliance issues with Single Touch Payroll, read our article on STP Non-Compliance Penalties for the latest rules and practical tips to keep your business penalty-free in 2025
End of Financial Year and Payment Summaries
At the end of the financial year, you need to ensure all withholding tax has been reported and paid. Employees use the information reported through STP or their payment summary to complete their tax return. The ATO matches the tax withheld with their tax file number to make sure everything lines up.
Conclusion
Calculating and paying withholding tax is a key responsibility for Australian businesses. By following the step-by-step guide above, you can ensure your PAYG withholding tax calculations are accurate and that you meet your obligations to the Australian Taxation Office. Staying on top of your withholding tax responsibilities helps your employees manage their tax and keeps your business compliant.
