A mate of mine in the Hunter Valley turned down a pay rise once. He reckoned it would push him into a higher tax bracket and leave him worse off overall. He was wrong, and he is not the only one who thinks this way. Understanding tax brackets clears up one of the most common money myths in Australia, and it takes less time than you would think.
Here is the short version. Australian tax brackets are marginal, not flat. You only pay the higher rate on the slice of income that sits inside that higher bracket. Every dollar below it still gets taxed at the lower rates that applied before. A pay rise can never leave you with less take home pay overall.
Before we get into the detail, it helps to have a tax agent check where your income actually sits each year, since brackets and thresholds shift from time to time. That said, the logic behind them stays the same, so once you get it, you get it for good.
What are tax brackets
A tax bracket is a range of income taxed at a set rate. Australia uses several brackets, each with its own rate. As your income rises, only the portion inside a higher bracket gets taxed at that higher rate. Everything below it stays taxed at the lower rates.
Why a pay rise never leaves you worse off
This is the bit that trips people up. Say your income moves from just below a bracket line to just above it. Only that small extra bit gets taxed at the new, higher rate. The rest of your income is untouched. So your average tax rate creeps up slightly, but your take home pay always goes up too, never down.
Think of it like a set of buckets. The first bucket fills up at one rate. Once it is full, extra income starts filling the next bucket at a higher rate. None of the earlier buckets change. That is the entire idea behind a marginal tax system.
What is the tax free threshold
The tax free threshold is the amount you can earn before you start paying any income tax at all. Below this line, your income is not taxed. Above it, tax kicks in at the first bracket rate, then climbs through the higher brackets as your income grows.
The tax free threshold with two jobs
You can only claim the tax free threshold with one employer at a time. If you work two jobs, claim it with the employer that pays you the most, and let the second employer withhold tax from the first dollar. Otherwise, not enough tax gets withheld across the year, and you can end up with a bill instead of a refund once you lodge.
This trips up plenty of people picking up a second job on the side, whether that is weekend shifts on the Central Coast or an evening gig on top of a regular nine to five. It is not a mistake exactly, since the total tax owed works out the same either way. It just changes whether you get a refund or a bill at the end of the year.
How the Medicare levy fits in
On top of your income tax, most people also pay the Medicare levy, calculated as a percentage of your taxable income. It is separate from the bracket system, but it gets added on when working out your overall tax bill. Higher income earners without private hospital cover may also pay a Medicare levy surcharge, which is a different and additional amount again.
What changes between financial years
Tax brackets and thresholds do shift from time to time as governments adjust settings. Rates that applied a few years ago are not always the rates that apply now. Rather than publish specific dollar figures here that could go stale, it makes more sense to send you straight to the source. Check the current brackets directly on the ATO website, since it always reflects the latest settings for the financial year you are asking about.
A cafe owner in Newcastle learned this the hard way. She based a big decision on rates she remembered from a couple of years earlier, without checking whether anything had changed. Once her agent walked her through the current figures, the numbers looked a fair bit different. Even so, it only took a few minutes to sort out, and it changed her plans for the rest of the year.
Why this matters for business owners
If you are a sole trader or run a small business, your tax brackets work the same way as anyone else, but the stakes tend to be higher. A good year on the tools can push part of your income into a new bracket without you noticing until tax time. Planning ahead for this, rather than being surprised by it in June, makes budgeting for tax a lot less stressful.
What bracket creep actually means
You might have heard the term bracket creep tossed around in the news. It describes what happens when wages rise with inflation, but the bracket thresholds stay still. Over time, more of your income drifts into higher brackets, even though your real spending power has not grown much at all. This is different to the pay rise myth from earlier. Bracket creep is a genuine, gradual shift, not a sudden jump the moment you cross a line. It is also one of the main reasons governments occasionally adjust the thresholds, since leaving them fixed forever would quietly increase everyone’s tax over time.
How offsets change the picture
Brackets tell you the rate, but offsets can reduce the actual tax you pay once that rate has been applied. For example, the low income tax offset lowers your final bill without changing which bracket your income falls into. Because of this, two people in the same bracket can end up with noticeably different tax bills once offsets are factored in. It is one more reason a bracket alone never tells the whole story.
Getting your numbers right
Tax brackets are simple in theory but easy to get wrong in practice, especially once deductions, offsets, and multiple income sources come into the picture. If you want to know exactly where your income sits and what that means for your bill or your refund, a proper tax return check beats guessing every time. After all, a few minutes spent checking now can save a lot of second guessing later. When you are ready to sort out your numbers for the year, get in touch and we will walk you through it.
Frequently asked questions
Will a pay rise put me in a lower take home bracket
No. Australian tax brackets are marginal, so only the portion of income inside a higher bracket gets taxed at that rate. Your take home pay always increases with a pay rise, even if your average tax rate ticks up slightly.
What happens if I do not claim the tax free threshold
Your employer withholds tax from your very first dollar of income instead of leaving the threshold untaxed. You still get credit for it at tax time, so it usually evens out as a bigger refund rather than extra tax owed.
Do tax brackets change every year
Not every year, but they can change when the government adjusts settings. It is worth checking current figures each financial year rather than relying on numbers from a previous one. Otherwise, you risk basing a decision on numbers that no longer apply.
Is the Medicare levy part of my tax bracket
No. The Medicare levy is calculated separately and added to your income tax bill. It is not one of the marginal brackets, though it does affect your overall tax outcome.
How do I know which tax bracket I am in
Add up your total taxable income for the year, then compare it against the current bracket thresholds on the ATO website. Most of your income will usually span more than one bracket, which is completely normal.
What is bracket creep
Bracket creep happens when wages rise with inflation but tax thresholds stay fixed. As a result, more of your income gradually moves into higher brackets over time, even without a real increase in what you can afford to buy.
Are tax brackets the same for everyone in Australia
Not quite. Australian residents get the tax free threshold and the standard bracket structure. Foreign residents are generally taxed from the first dollar, without the threshold, and at different rates. So residency status matters just as much as income when working out what you owe.
Does salary sacrifice change my tax bracket
Yes, in a helpful way. Salary sacrificing into superannuation reduces your taxable income, which can lower the amount taxed at your top bracket. Even so, super contributions have their own rules and caps, so it is worth checking those limits before you commit to a large sacrifice amount.