What do you actually do when you play Oz Lotto, and what has to happen for a line to win? Here's the short answer. In Australia's Oz Lotto, a line is seven numbers from a pool of 47. The draw day is Tuesday, and each draw produces seven winning numbers plus three supplementary numbers. Whether your line wins, and in which division, depends on how many of those it matches. There are seven divisions in all, running from all seven winning numbers at the top down to three winning numbers plus a supplementary.
That's the whole game in a paragraph. The rest of this guide unpacks the parts that tend to trip people up: what the supplementaries are really for, how the divisions line up against each other, and what the odds do and don't tell you.
What goes on an Oz Lotto line: seven numbers from 47
An Oz Lotto line is a set of seven numbers taken from a pool of 47. How you arrive at those seven makes no difference to your chances. Birthdays, a tidy run, numbers scattered across the pool or a completely random set: every line has the same chance in every draw.
On draw day, the result comes in two groups, and your seven numbers are checked against both:
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Seven winning numbers. This is the main result, and Division 1 is decided by these alone.
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Three supplementary numbers. These count only in some divisions, and in each of those they're paired with winning numbers.
Because a number on your line can match either a winning number or a supplementary, the division labels mix the two. That mix is exactly what the next section untangles.
How your seven numbers land in a division
Here are the seven Oz Lotto divisions as lottery.fm's game facts list them, with the odds for each.
| Division | What your line matches | Odds |
|---|---|---|
| Division 1 | All seven winning numbers | 1 in 62,891,499 |
| Division 2 | Six winning numbers plus a supplementary | 1 in 2,994,834 |
| Division 3 | Six winning numbers | 1 in 242,825 |
| Division 4 | Five winning numbers plus a supplementary | 1 in 26,271 |
| Division 5 | Five winning numbers | 1 in 4,497 |
| Division 6 | Four winning numbers | 1 in 182 |
| Division 7 | Three winning numbers plus a supplementary | 1 in 71 |
Read the table in pairs and the supplementary's job becomes clear. Six winning numbers is Division 3; the same six with a supplementary moves up to Division 2. Five winning numbers is Division 5; add a supplementary and it's Division 4.
At the foot of the table, two divisions sit outside those pairs. Division 6 is four winning numbers, and the game facts don't list a separate supplementary version of it. Division 7 works the other way: it's three winning numbers plus a supplementary, and the game facts list no division for three winning numbers on their own.
Checking a line comes down to three questions, asked in this order:
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How many winning numbers does it match? Count how many of your seven numbers are among the seven winning numbers.
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Does a supplementary turn up? Check whether any of your other numbers matches one of the three supplementaries.
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Which division, if any? The division follows from those two answers.
Once a draw's results are in, the Oz Lotto results hub shows the latest draw alongside past draws, so you can hold your line up against them. If you'd rather not compare by eye, you can check your numbers on lottery.fm. It's an unofficial convenience check against lottery.fm's own results history, not a substitute for the operator's result.
Jackpot odds and overall odds aren't the same thing
Division 1 is the Oz Lotto jackpot, and the odds of matching all seven winning numbers are 1 in 62,891,499. There's no gentle way to frame that: it's a genuine long shot, and no choice of numbers or pattern changes it.
The overall odds, meaning the chance of landing in any division at all, are 1 in 51. The shortest odds in the table belong to the lowest divisions. The two headline figures answer different questions, one about the jackpot and the other about winning anything, so it helps not to blur them.
Two things hold true whatever the figures:
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Every draw is independent. Past Oz Lotto results are a record of what happened, not a signal of what comes next. The numbers drawn most often historically carry no predictive value, because every draw has identical odds.
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More lines means more entries, at proportional cost. That's the only thing that changes how many chances you hold, and it isn't a reason to spend more than you'd planned.
Supplementaries, sibling games and tax: Oz Lotto questions worth settling
Do the supplementary numbers count towards Division 1?
No. Division 1 is all seven winning numbers. Supplementaries appear only in Divisions 2, 4 and 7, and in each case they sit alongside winning numbers.
Is Oz Lotto the same as Saturday Lotto or Powerball in Australia?
No. They're separate Australian games, each with its own rules and odds. The seven-from-47 line, the three supplementaries and the division odds in this guide belong to Oz Lotto alone, so don't carry them across to another game.
Are Oz Lotto winnings taxed?
In Australia, lottery winnings are tax-free; they aren't counted as assessable income. Treat that as general information rather than tax advice. For your own circumstances, a qualified tax adviser is the right person to ask.
Are these Oz Lotto figures still current?
They come from lottery.fm's game facts as of 26 September 2026. Game details can change after that date, so if you're reading this later, the official operator's page is the one to trust.
Where do I find the details this guide doesn't cover?
Go to the official operator. In Australia that's The Lott or Lotterywest, and Lotterywest's Oz Lotto page is the official site listed in lottery.fm's game facts, but the operator that sold your ticket is the one to confirm anything about playing that isn't set out here.
Play for fun, within a budget you set in advance. If gambling is no longer fun, free and confidential support is available 24/7 from Gambling Help Online on 1800 858 858.
Always confirm winning numbers, prize amounts, and deadlines with the official operator before acting on a ticket — the operator's published results are the only ones that count.
Sources
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lottery.fm game facts database, facts as of 26 September 2026 — Oz Lotto — game facts
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Lotterywest, official game page, accessed 26 September 2026 — OZ Lotto

