Calculator
Weekly Take-Home
$1,288.69
$345.92 withheld for tax
With an annual salary of $85,000, your total estimated PAYG withholding is $17,988 per year, which is an effective tax rate of 21.2%. Your withholding is spread across the year to ensure you meet your tax obligations by June 30th without a large lump-sum bill.
Pay-As-You-Go (PAYG) withholding is the primary system the Australian Taxation Office (ATO) uses to collect personal income tax throughout the financial year. Rather than requiring taxpayers to pay a massive lump sum at the end of the year, employers are legally obligated to 'withhold' a portion of each employee's salary or wages. This system is designed to help individuals manage their tax obligations by spreading the cost across their regular pay cycle, whether that be weekly, fortnightly, or monthly. For the broader Australian economy, it ensures a steady stream of revenue for public services and infrastructure. Understanding your PAYG withholding is crucial because it directly impacts your 'take-home' pay—the actual amount that hits your bank account. It is important to distinguish between PAYG withholding and your final tax liability; the amount withheld is an estimate based on ATO tax tables, and your final tax obligation is determined when you lodge your annual tax return. If too much was withheld, you receive a tax refund; if too little, you may end up with a tax debt. Factors such as the tax-free threshold, HECS/HELP debts, and the Medicare Levy all play a role in how much your employer is required to take out of your pay each period.
The calculation of PAYG withholding follows strict formulas provided by the ATO, which are updated annually to reflect changes in tax legislation, such as the Stage 3 tax cuts introduced in July 2024. The formula begins by determining your gross pay for the period. If you have claimed the tax-free threshold ($18,200), the first portion of your annual income is not taxed. For amounts above this, withholding rates increase progressively: 16% for income between $18,201 and $45,000, 30% up to $135,000, 37% up to $190,000, and 45% for every dollar earned thereafter. In addition to basic income tax, the formula incorporates the 2% Medicare Levy. If you have a HECS-HELP student loan, additional withholding applies once your income exceeds the minimum repayment threshold (approximately $54,435 for the 2024-25 year), with rates ranging from 1% to 10% of your total income. The calculator also accounts for the specific 'pay period' logic; the ATO uses different coefficients for weekly vs. fortnightly pay to ensure accuracy. Mathematically, the system assumes that your earnings for that specific period will be consistent for the entire year, which is why a large one-off bonus can sometimes result in a disproportionately high tax withholding for that single pay cycle.
If you have more than one employer, you should generally only claim the tax-free threshold from the employer who pays you the highest salary. If you claim it from both, you will likely not have enough tax withheld across the year, leading to a surprise tax bill when you lodge your return. This is one of the most common reasons for unexpected ATO debts among part-time and casual workers in Australia.
Unlike income tax, which is calculated in brackets, HECS-HELP repayments are calculated as a percentage of your *entire* income once you hit the threshold. This creates 'cliff edges' where earning a small bonus that pushes you over a threshold could result in a significant jump in the amount withheld. Always check the current repayment tiers if you are close to a threshold boundary.
If you have significant tax deductions throughout the year—for example, from a negatively geared investment property—you can apply for a PAYG Withholding Variation. This allows the ATO to instruct your employer to reduce the amount of tax withheld from your pay, effectively giving you your 'tax refund' in every payslip rather than waiting until the end of the financial year.
Compare the 'Tax Withheld' line on your payslip with our calculator. If there's a significant discrepancy, it could mean your employer hasn't updated your details regarding HECS or your tax-free threshold status.
Whenever your circumstances change—such as paying off your student loan or changing your residency status—you must provide a new Tax File Number Declaration to your payroll department to ensure your withholding remains accurate.
If your income varies significantly due to overtime or commissions, remember that the PAYG system may 'over-withhold' during busy months. This money isn't lost; it will be reconciled as a refund after June 30th.
Sarah, a marketing coordinator, received a raise from $54,000 to $58,000. Because $54,435 is the HECS repayment threshold, her take-home pay actually decreased slightly in her first month because the new PAYG withholding triggered HECS repayments on her entire salary. Using the calculator helped her understand this 'pay rise paradox'.
James took a weekend retail job to save for a holiday. He initially claimed the tax-free threshold on both jobs. After using the PAYG calculator, he realized he would owe the ATO $3,200 at year-end and quickly updated his second employer to withhold tax at the higher 'no threshold' rate.
Elena received a $5,000 performance bonus. She was shocked to see nearly $2,400 withheld in tax. The PAYG system treated her as if she earned that high amount every month. The calculator showed her that while her withholding was high now, she would likely see a healthy refund at tax time.
Everything you need to know about this topic.
Continue your journey with these related resources.