Overtime vs Penalty Rates in Australia

The Short Answer

Overtime is about how many hours you work — it applies when you work beyond your ordinary hours threshold (daily or weekly). Penalty rates are about when you work — they apply at specific times (evenings, weekends, public holidays) regardless of how many hours you have already worked.

A Saturday shift can attract a penalty rate even if it is the first work you have done all week. And overtime can occur on a weekday without any penalty rate being involved. In some circumstances, both apply to the same hours — how they interact depends entirely on your award or enterprise agreement.

Ordinary Hours

Ordinary hours are the standard hours you are employed to work, up to the threshold set by your Modern Award or the National Employment Standards. For most full-time employees, the National Employment Standards set a maximum of 38 ordinary hours per week.

However, many Modern Awards also define ordinary hours in terms of daily spans and rosters. Ordinary hours may be limited to a maximum of 8 or 10 hours per day under some awards, with any hours beyond that being overtime regardless of the weekly total.

Ordinary hours are generally paid at the base rate (or the casual loaded rate for casual employees), without any overtime multiplier. Penalty rates may still apply to ordinary hours worked at certain times — for example, a full-time employee working their ordinary 8-hour shift on a Saturday still attracts the Saturday penalty rate under most awards.

Overtime

Overtime refers to hours worked beyond the ordinary hours threshold. It is generally paid at a higher multiplier than the ordinary rate to compensate for the additional time worked.

Common overtime rates in Australian Modern Awards include:

• Time and a half (1.5×) — often applied to the first period of overtime (commonly the first 2 hours)
• Double time (2.0×) — often applied to overtime beyond the initial period

The exact overtime trigger and multipliers depend on the applicable Modern Award or enterprise agreement. Some awards use only a weekly threshold (overtime after 38 hours per week); others also use a daily threshold (overtime after 8 hours per day); and some use the higher of the two triggers.

Overtime rates apply to the ordinary hourly rate — or, for casual employees, the casual loaded rate — not to the base rate plus the day-type penalty combined.

Weekend Penalty Rates

Weekend penalty rates apply to hours worked on Saturdays and Sundays. They exist to compensate employees for the inconvenience of working on days that most of the community has off.

Weekend penalty rates can apply to ordinary hours — a full-time employee working their regular 8-hour shift on Saturday is generally entitled to the Saturday penalty rate even though no overtime has occurred.

Common Saturday and Sunday penalty rate ranges seen across Australian awards:

• Saturday: commonly 125% to 150% of the ordinary rate (varies by award and employment type)
• Sunday: commonly 150% to 200% of the ordinary rate (varies by award and employment type)

Casual employees may have different penalty rates than permanent employees on weekends, depending on the award. Some awards set specific combined casual weekend rates rather than applying casual loading on top of a penalty rate.

Public Holiday Penalty Rates

Public holiday penalty rates apply to employees who actually work on a gazetted public holiday. Many awards also provide for payment to employees who do not work on a public holiday (payment for the day off), though this depends on the award and the employee's usual roster.

Common public holiday rates across many Modern Awards are around 250% (double time and a half) of the ordinary rate. However, rates vary — some awards specify different rates, and whether an employee can be required to work on a public holiday is itself an award provision.

The interaction between public holiday entitlements, roster patterns, and casual employment types is complex. A casual employee may have no entitlement to payment for a public holiday they do not work, while a part-time employee may be entitled to payment if the public holiday falls on a day they would normally work.

When Overtime and Penalty Rates Apply to the Same Hours

Both overtime and a penalty rate can apply to the same hours. For example, a worker who is asked to stay back and work 10 hours on a Sunday is potentially entitled to both the Sunday penalty rate and the overtime rate. How these combine depends on the award. Three common approaches:

The higher rate applies

Some awards specify that the higher of the overtime rate or the penalty rate applies to the relevant hours, but the two are not stacked on top of each other. If the Sunday rate (200%) is higher than the overtime rate (150%), the employee is paid at 200%.

A combined flat rate applies

Some awards specify a single combined rate for particular combinations of circumstances — for example, "overtime worked on a Sunday is paid at double time regardless of tier." This combined rate takes the place of both the overtime and penalty calculation.

The rates are calculated independently

Some awards specify that penalty rates and overtime rates accumulate differently — for example, the casual loading applies to the base rate, the Sunday penalty applies to the base rate, and the overtime multiplier applies to the loaded rate. This results in a different total from simply multiplying all three together.

This calculator uses a simplified default model (penalty rate applied to ordinary hours, overtime rate applied to overtime hours). This may not match the exact provisions of your award when both overtime and a penalty rate apply to the same hours.

Worked Examples

Example A: Saturday Penalty Rate (No Overtime)

A full-time employee earning $30/hr works an 8-hour Saturday shift under an award with a 125% Saturday rate. No overtime triggers because ordinary hours are within the daily threshold.

Example B: Weekday Overtime (No Penalty Rate)

The same employee works 10 hours on a Tuesday. No penalty rate applies; overtime triggers after 8 hours.

Example C: Sunday Overtime (Both Apply)

The same employee works 10 hours on a Sunday under an award that uses the "higher rate applies" approach — the Sunday rate (200%) is higher than overtime tier 1 (150%), so 200% applies to all overtime hours.

See also: Casual Loading and Penalty Rates • Worked Examples • Calculation Methodology