How basic pay works in Australia, base rates, penalties and super

"Basic pay" is one of those phrases that sounds self-explanatory. An employee works, the employer pays them, and the amount should be obvious. In Australia it rarely is. Between modern awards, enterprise agreements, penalty rates, overtime, allowances, casual loadings and superannuation, the number on a payslip is the product of a whole system of rules, and each rule was written to answer a different question.

The system exists for a simple reason: to guarantee every employee a minimum floor of pay and conditions, no matter how small or informal the workplace. It determines who can set rates, what counts as ordinary work, what happens when work falls outside ordinary hours, and what the employer must pay on top of wages into superannuation. Understanding how the machinery fits together is what separates a payroll that runs quietly from one that produces an underpayment notice.

This guide explains how basic pay actually works in Australia: where minimum rates come from, what triggers the extras that sit on top of the base rate, how superannuation is calculated, and where the system tends to bite small businesses.

Who sets the rates and who polices them

A handful of institutions and parties each play a distinct role, and the division of labour matters because it explains where rates come from and who will hold you to account.

Fair Work Commission: Runs the Annual Wage Review each year, sets the National Minimum Wage and most award minimum rates, and approves enterprise agreements.
Parliament: The Fair Work Act 2009 (Cth) (the Fair Work Act) sets the National Employment Standards, the statutory floor of minimum conditions that applies to nearly all employees in the national system.
Fair Work Ombudsman: The regulator that investigates underpayment complaints, audits businesses and, since January 2025, can refer intentional underpayments for criminal prosecution.
Australian Taxation Office: Enforces the superannuation guarantee, the compulsory contribution employers must make to employees' super funds.
Employers and employees: The employer identifies the applicable instrument, classifies the role and pays. The employee is entitled to the minimum and can enforce it through the Commission or the courts.

Where your base rate comes from

Every pay calculation starts with the same question: which instrument sets this employee's minimum rate? There are four possibilities, in a strict hierarchy:

The National Minimum Wage: If no modern award and no enterprise agreement covers the employee, the National Minimum Wage (NMW) applies. From 1 July 2026 it is $26.44 per hour, or $1,004.90 per week based on a 38-hour week, and the Fair Work Ombudsman's minimum wages page sets out the current figures. The Fair Work Commission reviews and resets the NMW every year, usually effective from the first full pay period on or after 1 July. Separate special rates apply to juniors, trainees and people with disability.
A modern award: Most small businesses are covered by a modern award, which is an industry or occupation-wide instrument made by the Commission. Awards set minimum base rates for each classification level, plus the rules for ordinary hours, the span of hours, penalty rates, overtime, allowances and breaks. Where an award covers the employee, the award rate applies instead of the NMW, and in practice it is almost always higher.
An enterprise agreement: A registered enterprise agreement can replace the award for a particular workplace, but it must pass the better off overall test before the Commission approves it, meaning each employee covered must be better off overall under the agreement than under the relevant award.
A contract of employment: The contract can promise more than the instrument requires, but it can never undercut it. If a contract says less than the award, the award wins.

Once you know the instrument, you still need the classification. Awards and agreements grade employees by skill level, duties and experience, and each grade carries its own base rate. Classification drives everything downstream, so a role that is misclassified at the start will usually be paid wrong at every level of the calculation until someone notices.

The building blocks of a pay calculation

The base rate is just the first layer. The total for a pay period is built by working through which of the following apply to the hours actually worked.

Ordinary hours and the span of hours

Under the National Employment Standards, the maximum weekly hours for a full-time employee are 38, and an employee may refuse additional hours that are unreasonable (s 62 of the Fair Work Act 2009 (Cth)). For award and agreement free employees, ordinary hours default to 38 per week unless otherwise agreed (s 20). Awards add a second concept: the span of hours, the window within which ordinary hours can be worked, for example Monday to Friday between 6am and 6pm. Hours inside the span are paid at the ordinary base rate. Hours outside the span, or beyond the daily or weekly limits, trigger the extras below.

Penalty rates

Penalty rates are the higher rates an award or agreement pays for work at particular times, most commonly evenings, weekends and public holidays. They are not part of the base rate; they sit on top of it and are triggered by the time the shift falls. The exact percentages come from the instrument, so the same Saturday shift can cost very different amounts under different awards. This is the layer most rosters get wrong, because a single shift that straddles the evening or weekend boundary can attract two different rates.

Overtime

Overtime is triggered when work exceeds the daily or weekly ordinary hours, or falls outside the span, depending on how the instrument is drafted. It is usually paid at a premium, commonly 150 per cent for the first hours and 200 per cent beyond that under many awards, but the thresholds and multipliers differ between instruments. Overtime depends entirely on accurate timekeeping, because you can only identify hours beyond ordinary limits if you know where the limits are.

Allowances

Some roles attract allowances paid in addition to the base rate when a condition is met, for example travel, tools, uniforms, first aid duties or temporarily working at a higher level. Allowances are usually small per shift or per week, but they are easy to miss entirely, and some of them count towards superannuation (see below).

Casual loading

A casual employee is engaged with no firm advance commitment to ongoing work and receives a casual loading, or a specific casual rate, in place of paid leave and other entitlements (Fair Work Ombudsman guidance on casual employees). The loading is commonly 25 per cent, although some awards specify a different figure. It is added to the base rate for every hour worked, and penalties or overtime may then be calculated on the loaded rate, so the order of operations matters.

Leave and leave loading

Permanent full-time and part-time employees accrue paid annual leave and personal or carer's leave. Many awards add annual leave loading when leave is taken, commonly 17.5 per cent of the base rate, which is why a week of leave can cost more than a week of work (Fair Work Ombudsman guidance on annual leave loading). Check how the loading interacts with shift penalties in your instrument before you configure payroll.

Breaks

Meal and rest breaks are set by the instrument, not by employer preference. Some breaks are paid and some are unpaid, and the entitlement varies with shift length. A roster that does not build in the required breaks produces both a compliance problem and a pay problem, because an unpaid break that was never actually taken can become time that should have been paid.

Superannuation: the 12 per cent on top of ordinary time earnings

The superannuation guarantee rate is 12 per cent from 1 July 2025, applied to each eligible employee's earnings (Australian Taxation Office super guarantee rates). The base for the calculation is ordinary time earnings (OTE), defined in s 6 of the Superannuation Guarantee (Administration) Act 1992 (Cth) as earnings in respect of ordinary hours of work, plus over-award payments, shift loadings and commissions, excluding certain lump sums paid on termination.

The practical consequences flow from that definition. Because overtime is paid for work beyond ordinary hours, overtime payments generally do not form part of OTE, and you do not pay super on them. Penalty rates paid for hours that are still ordinary hours generally do count. Allowances depend on what they compensate: allowances paid for performing ordinary work generally count, while reimbursements of expenses generally do not. And from 1 July 2026, payday super means the obligation is met each payday rather than quarterly, so the OTE calculation runs every pay run, not four times a year.

A worked example, end to end

A hypothetical example shows how the layers stack. Suppose the applicable award sets a base rate of $30 per hour for the role's classification, ordinary hours are Monday to Friday within the span, and the Saturday penalty is 125 per cent, giving a Saturday rate of $37.50 per hour. In a week where the employee works 30 ordinary hours and one 8-hour Saturday shift:

30 hours at $30.00 = $900.00 ordinary pay
8 hours at $37.50 = $300.00 penalty pay
Total gross pay = $1,200.00
Super at 12 per cent on OTE = $144.00, if the Saturday hours fall within ordinary hours under the award

If the same employee were a casual with a 25 per cent loading, the base rate becomes $37.50 per hour and the Saturday rate is calculated on the loaded base, which changes both the gross and the super. The lesson is that the arithmetic is simple once the inputs are right, and the inputs are exactly where the errors happen.

Where pay calculations go wrong

Most payroll errors fall into a small, repeatable set of categories:

Wrong award or wrong classification: The most common cause of underpayment, because it feeds into the base rate, penalties, allowances and super at once. Revisit coverage and role descriptions whenever duties change, on promotion, or when a role moves between departments.
Ordinary hours confused with overtime: If timesheets do not flag when hours step beyond ordinary parameters, overtime is missed entirely.
Edge hours: Shifts that start early, finish late or straddle a weekend slip through roster and payroll settings that were never tuned to the award's span.
Super on the wrong earnings: Paying super on overtime, or missing allowances that count towards OTE, produces errors that compound over a year.
Break rules ignored: Rosters that do not reflect paid and unpaid break entitlements understate what is owed.
Annualised salaries without reconciliation: Where an award permits an annualised wage, it usually requires an annual reconciliation to confirm the salary actually covers what the award would have delivered, and the records to prove it.
Stale rates: Forgetting the annual 1 July increase, such as the NMW move to $26.44 per hour from 1 July 2026, quietly underpays every affected employee.

Records, payslips and the wage theft offence

The obligations do not stop at paying the right amount. Under the Fair Work Act, employers must make and keep employee records (s 535) and give each employee a pay slip within one working day of paying them (s 536), showing the pay period, gross and net amounts, and the loadings, allowances, deductions and super contributions that make up the calculation. Those records are what the Fair Work Ombudsman asks for first, and what you need to prove a calculation was right.

The stakes have also risen. Since 1 January 2025, intentionally underpaying an employee's wages or entitlements is a criminal offence, and the Fair Work Ombudsman investigates and can refer matters for prosecution. Small businesses that follow the steps in the Voluntary Small Business Wage Compliance Code are protected from prosecution for unintentional errors, but the civil penalties for underpayment remain substantial. Getting the calculation right is no longer just a cost issue; it is a compliance issue with criminal consequences at the far end.

When to bring in a lawyer

Most pay questions can be answered from the instrument itself, but several situations warrant a professional check before you commit to a configuration:

You are unsure which award covers your business or how to classify a new or changed role.
You are setting up an annualised salary arrangement that needs an annual reconciliation.
You are changing trading hours, opening on weekends, or introducing a new roster model.
An employee has queried their pay, or the Fair Work Ombudsman has asked for records.
You have discovered an underpayment and want to remediate it in the way least likely to attract penalties.

An employment lawyer's role at these points is concrete: confirm award coverage and classification, audit a sample of pay runs against the instrument, draft or review annualised salary terms and the record-keeping that supports them, and respond to regulator inquiries or remediation in a structured way. A review before the next pay run is far cheaper than unpicking a year of wrong calculations after a complaint.

The mistake that compounds every pay cycle

If there is one point in the system where risk concentrates, it is the starting point: the instrument and classification keyed into the payroll system on day one. Every layer of the calculation inherits errors from that first entry, which is why a wrong classification is visible in the base rate, the penalties, the super and the annual reconciliation at once. Re-verify your coverage and classifications when rates change on 1 July, when duties change, and before you hire into a new role. A short review of your instruments and classifications, ideally before your next pay run, is the cheapest form of payroll insurance available, and a consultation can confirm whether your setup is as sound as your payroll software suggests.