What does one wrong Award rate actually cost you?

About three times the shortfall, and it keeps running until someone finds it. A rate that is $1.50 an hour light costs $57 a week. Left alone for three years across four staff, that is close to $40,000 before anyone talks about penalties.

The number is not the problem. The time is.

What "one wrong rate" actually means

It is almost never a decision. Nobody sits down and picks a rate below the Award.

It happens one of four ways. The rate moved on 1 July and payroll did not. Someone was hired into the wrong classification and stayed there. A salary was set once and never checked against the hours actually worked. Or an allowance in the Award was never switched on at all.

All four look identical from the inside. Payroll runs, nobody complains, the number on the payslip is the number in the system. The error is invisible precisely because it is consistent.

It is worth being clear about what the Award actually is here. It is not a guide, and it is not a starting point for negotiation. It is a floor. You can pay above it by any amount and in any structure you like. You cannot agree your way below it, and neither can the employee — a contract term that pays less than the Award does not bind them to the lower figure. It just becomes evidence of what you agreed while the floor keeps applying.

What this means for your business

The shortfall is the smallest part of what you owe.

Underpay someone by $1.50 an hour and you owe them $1.50 an hour. You also owe superannuation on the amount you should have paid, at 12% for this financial year. You may owe interest. If it went to court, penalties sit on top of all of it, and they are calculated per contravention, not per employee.

And it multiplies two ways at once. Across people, because a wrong classification rate is usually wrong for everyone in that classification. And across time, because you keep paying it every week until someone works it out.

That is why a small error is not a small number. It is a small number with two multipliers attached.

There is a second version of this that catches growing businesses, and it does not involve a rate at all. You set a salary that comfortably cleared the Award when the person worked 38 hours. Two years later they are working 48, the overtime and penalty rates the Award would have produced have gone up with the hours, and the salary has not moved. Nobody changed anything. The gap opened underneath.

Both versions land in the same place. The question a court asks is not what you agreed to pay. It is what the Award required for the hours actually worked.

Where it comes from, and when it applies

Modern Award rates change on 1 July. Every year. This is not an occasional event you can watch for.

This year the Fair Work Commission increased modern award minimum wages and the National Minimum Wage by 4.75%, effective from 1 July 2026. The National Minimum Wage moved to $1,004.90 a week, or $26.44 an hour.

So if your rates have not moved since June, the gap opened on 1 July and has been widening every week since. Ten weeks in, on a 38-hour week, a 4.75% shortfall on a $26 rate is already over $460 for one person.

The part that catches people. You do not need to have done anything. Standing still is the error. The obligation moves whether you move with it or not.

What happens when you get it wrong

Here is the arithmetic, on one person, at $1.50 an hour under the correct rate.

Now put four people on that classification. Three years in, you are at $39,836. Six years in, just under $80,000.

Those figures use a 38-hour ordinary week, 52 weeks, and the 12% super guarantee rate. Super was lower in earlier years, so the middle column is slightly generous on a long look-back. Nothing else in the table is an estimate — it is the shortfall multiplied out.

And that is before penalties. The Fair Work Ombudsman publishes the maximum civil penalty as $18,780 per contravention for an individual and $93,900 for a company, rising to $187,800 and $939,000 for a serious contravention — one the person knew about, or one that formed a systematic pattern.

Worth knowing where those numbers come from. They are 60, 300, 600 and 3,000 penalty units, and the dollar figures on that page are those units priced at $313. The penalty unit has been indexed twice since: to $330 in November 2024, and to $364 from 1 July 2026. At the current value, 300 units is $109,200, not $93,900.

Since 1 January 2025 there has also been a criminal offence for intentionally failing to pay what is owed on time. That one turns on intent, so a payroll mistake is not it. An employer with fewer than 15 employees who complies with the Voluntary Small Business Wage Compliance Code cannot be referred for criminal prosecution.

Why it is always found years later

Underpayment is not usually discovered. It is triggered. And the triggers have nothing to do with how well you run payroll.

• Someone resigns and, with nothing to lose, adds up what they were actually paid

• A new bookkeeper reconciles your rates against the Award for the first time

• An employee calls the Ombudsman, often about something else entirely

• A buyer runs due diligence, and finds it in week two of the deal

Notice what is missing from that list: you finding it yourself. A consistent error produces no complaints, no exceptions and no flags. It looks exactly like a business paying its people correctly, right up until it doesn't.

By then the meter has been running for years, and the Fair Work Act 2009 (Cth) requires you to keep time and wages records for seven years. Those records are the evidence of exactly how long and exactly how much.

The trap sits in the other direction too. If you have not kept the records, the Ombudsman's guidance is blunt: an employer who has not kept records or made them available may have to prove to a court that they did not underpay. Missing records do not make the problem smaller. They shift the burden onto you.

What's changing — super now moves weekly

From 1 July 2026, superannuation stopped being a quarterly job.

Under Payday Super, contributions have to reach the employee's fund within 7 business days of paying them. A new employee's first contribution gets 20 business days.

That matters here for a reason most coverage misses. Super is calculated on what you pay. So a wrong rate is now producing a wrong super contribution every single pay cycle, not four times a year, and each one is separately late or short.

If contributions do not land in time, the super guarantee charge now includes interest that compounds daily at the general interest charge rate, an administrative uplift, and penalties of 25% or 50% of the unpaid charge depending on your history. It is assessed by the ATO rather than self-assessed.

The upside, and it is a real one: a wrong rate now surfaces in weeks rather than quarters. Anything that shortens the look-back shortens the bill.

There is a timing point worth putting in your diary. Payday Super started on the same day the new Award rates did — 1 July 2026. If your rates did not move that day, the super calculated on them has been wrong for every pay run since, and each of those contributions has its own 7-day clock. One missed rate change now generates two separate problems on a weekly cycle.

How to protect your business

Five checks, and the first one is the one that matters this month.

1. Confirm your rates moved on 1 July. Not "we think payroll handles it". Open the pay run and compare one employee in each classification against the current Award rate. If they did not move by 4.75%, you already have a gap ten weeks deep.

2. Check the classification, not just the rate. Paying the correct rate for the wrong level is still underpayment. Classifications turn on the work actually performed, not the job title on the contract.

3. Test any salary against the hours. An annualised salary has to beat what the Award would have produced for the hours actually worked, including overtime and penalties. A salary that was comfortable at 38 hours is not comfortable at 48.

4. Check the allowances. Laundry, tools, travel, first aid, meal. They sit in the Award whether or not anyone has ever mentioned them, and they are the most commonly missed line.

5. Read what your contract actually promises. If the contract says "the applicable Award rate", you owe the current rate whatever your system pays. If it names a fixed dollar figure that is now below the floor, the floor wins and the contract is the evidence of what you agreed.

Best case: what a contract that protects you looks like

The clause that causes this is usually the pay clause.

The version that ages badly:

Your salary is $58,000 per annum, inclusive of all Award entitlements.

Fixed, silent about which Award, silent about hours, and it does not move when the Award does. It also invites the argument that the salary was meant to cover overtime it never covered.

The version that holds up:

Your salary is $58,000 per annum. This is intended to satisfy all entitlements under the [named Award], for ordinary hours of 38 per week plus reasonable additional hours. We will review this figure against the Award each year and increase it where required.

Same money. But it names the instrument, states the hours the figure was built on, and commits to the annual check the law is going to require anyway.

Neither version protects you if the payroll number is wrong. The contract is where you find out what you promised.

When to call a lawyer

Three situations where a checklist will not get you there.

You have found a shortfall going back years. How you disclose, whether you approach the Ombudsman first, and how you calculate the back-pay all have consequences. Get advice before you write to the employee.

Someone has already made a claim. Live matter, different rules, and what you say early shapes the rest of it.

You are buying or selling a business. Underpayment liability travels with the employees. It is a due diligence item, not a payroll item.

What this doesn't cover

Enterprise agreements, which set their own rates and their own review mechanics. Contractors, where the question is whether the person is an employee at all. And the criminal offence, which turns on intent and on facts no document can show.

Verified 8 September 2026, against the Annual Wage Review 2026 decision announcement on fwc.gov.au, the litigation and record-keeping pages on fairwork.gov.au, the super guarantee and Payday Super pages on ato.gov.au, and the penalty unit value on accc.gov.au.

Your contract is the record of what you promised to pay. Upload the employment contract you use today. Every clause is scored, the pay and hours clauses are checked against the Award that governs them, and the ones that fail come back rewritten.