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Overtime Calculator

Work out a week of pay that mixes ordinary hours, time and a half and double time. The multipliers are standard across most awards, but when each one starts is set by your award, not by legislation.

Your details

Gross pay for the week

$1,680.00

Ordinary, 38 hrs at $35.00
$1,330.00
Time and a half, 4 hrs at $52.50
$210.00
Double time, 2 hrs at $70.00
$140.00
Gross for the week
$1,680.00
Overtime portion
$350.00
Annualised, if every week looked like this
$87,360

Time and a half and double time are the common multipliers, but when each applies is set by your award, not by law. Overtime is not qualifying earnings, so no super is paid on it, unless your ordinary hours are not clearly identified in an award or agreement.

Worked examples, with the arithmetic.

The same sums the tool runs, on real figures. Every number below is computed by the tested engine from the published rates, so the prose and the tool can never disagree.

What is a week with 4 hours of time and a half worth on $35 an hour?

38 ordinary x $35        = $1,330.00
4 hours x $52.50            = $210.00
gross for the week            = $1,540.00

The four overtime hours add $210.00 rather than $140.00, because time and a half pays $52.50 an hour. Those four hours are worth the same as six ordinary hours.

What does double time add?

2 hours x $70.00             = $140.00
same 2 hours at ordinary rate = $70.00
difference                    = $70.00

Double time pays $70.00 an hour on a $35 base, so two hours are worth $140.00. When double time starts is set by your award, not by legislation, which is why two people on the same rate can be paid differently for the same hour.

Is this accurate, and how does it work?

The method is published rather than described. Nothing here is a black box, and the limits are listed as plainly as the workings.

  1. 1Ordinary hours at the base rate. Ordinary hours are the hours your award treats as normal, most often 38 a week. Everything beyond that is where overtime rules begin.
  2. 2Time and a half, then double time. Most awards pay 1.5 times the base rate for the first block of overtime and 2 times after that. The size of the first block, and what counts on a weekend or public holiday, differ by award.
  3. 3Keep overtime out of super. Overtime is not qualifying earnings, so the Superannuation Guarantee is not calculated on it, provided your ordinary hours are clearly identified in an award or agreement. Penalty rates paid for ordinary hours are qualifying earnings and do attract super.

What this does not cover.

  • The multipliers are the common ones. Your award sets when each applies, and some awards use different rates for weekends, night work or public holidays.
  • It does not apply award-specific penalty rates. Those are published per award elsewhere on this site.
  • It does not calculate superannuation on the result, because overtime is outside qualifying earnings where ordinary hours are clearly identified. Where they are not, super is payable on all hours and this page would understate it.
  • Casual employees are usually paid overtime on the base rate plus casual loading, which this does not model.

Where these figures come from.

Every rate this site uses is listed on the Methodology page.

Common questions.

How do I calculate time and a half?

Multiply your base hourly rate by 1.5, then by the hours worked at that rate. On a $35 base rate, time and a half is $52.50 an hour. Double time is the base rate multiplied by 2, so $70 an hour on the same base.

When does overtime start?

That comes from your award or agreement, not from a single national rule. Commonly it is beyond 38 ordinary hours in a week or beyond the rostered daily hours, but the trigger, the first block at time and a half and the switch to double time all vary.

Do I get super on overtime?

Usually not. The ATO states overtime payments are not qualifying earnings, the base the guarantee is calculated on since 1 July 2026, provided your ordinary hours are clearly identified in an award or agreement. The exception matters: where overtime cannot be distinctly identified, every hour you work counts as ordinary hours and the whole amount attracts super. Shift penalties, public holiday penalties and casual loading are all qualifying earnings and do attract super.

Is overtime taxed at a higher rate?

No. Overtime is ordinary income taxed at your normal marginal rates. A big overtime week can push that single pay into a higher withholding bracket, which is why it looks over-taxed on the payslip and usually settles at assessment.

Related pages.

  • Penalty RatesWhat penalty rates are, and the Saturday, Sunday and public holiday percentages three awards actually publish, read from the award text.
  • Casual Loading CalculatorConvert a permanent base hourly rate into a casual rate with loading, and see what the loading is worth each week.
  • Work Hours CalculatorTurn a daily pattern into paid hours a week after unpaid breaks, and see what those hours are worth after tax.
  • Hourly Rate CalculatorConvert an hourly rate to a weekly, fortnightly or annual salary and back again, with take-home pay after income tax and the Medicare levy.

Every calculator on this site is listed on the Wage Calculator page.