Contractor Rate vs Employee Salary Calculator Australia

What this comparison actually measures

An employee salary and a contractor invoice rate are not directly comparable. Employees normally receive paid annual leave, paid personal leave, public holidays and employer super. Contractors usually fund their own leave, administration, equipment, insurance, accounting and retirement savings. The calculator converts those missing benefits and costs into a revenue target, then divides that target by realistic billable hours.

The result is a commercial comparison, not a legal test. Calling a worker a contractor, requiring an ABN or paying invoices does not settle employment status. Australian workplace law looks at the real relationship between the parties.

How the contractor rate is built

The starting point is the personal pre-tax income you want the contract to replace. The calculator then adds a super provision, annual business expenses, employee-side work costs and a risk or profit buffer. That total is spread across the hours you can genuinely invoice after leave and non-billable administration.

Billable utilisation is the variable most often overstated. A person who works 37.5 hours a week rarely invoices all 37.5 hours. Quoting, bookkeeping, client communication, professional development and gaps between projects consume capacity. Entering zero admin time can produce a rate that looks competitive but is structurally too low.

Worked example: replacing a $90,000 salary

Use a $90,000 base salary, 12% employer super, no bonus and $2,500 employee work costs. For contracting, enter 7.5 hours a day, five days a week, eight non-billable weeks, 15% administration, $12,000 annual business expenses, a 12% personal super target, a 10% risk/profit buffer and 10% GST.

The personal pre-tax target after entered employee work costs is $87,500. Add $10,800 super and $12,000 expenses, then apply the 10% buffer: ($87,500 + $10,800 + $12,000) × 1.10 = $121,330 annual revenue before GST. Billable time is 7.5 × 5 × 44 × 0.85 = 1,402.5 hours.

$121,330 ÷ 1,402.5 = $86.51 an hour before GST, or $95.16 including 10% GST. The result panel rounds these rates to $87 and $95 per hour and the day rate to $649. The employee package metric is $98,300 after the entered employee work costs. Personal income tax is excluded from both sides.

Costs contractors commonly omit

• Professional indemnity, public liability, workers compensation or income-protection cover where relevant.
• Laptop, phone, software, vehicle, travel, licences and industry memberships.
• Accounting, bookkeeping, BAS preparation and payment processing.
• Unpaid sales calls, proposals, revisions, debt collection and gaps between clients.
• Super contributions, tax reserves and a cash buffer for late invoices.

How to use the result

1. Check the employee package and whether super is on top of or included in the advertised salary.
2. Estimate billable weeks conservatively rather than assuming a full 52-week year.
3. Enter costs from bank statements or supplier quotes, not guesses.
4. Quote before GST if registered, then add GST separately to taxable sales.
5. Stress-test the rate with fewer billable hours and one unexpected expense.

How the equivalent contractor rate is calculated

The employee package metric combines base salary, bonus, entered employee work costs and employer super. The contractor revenue target starts with salary plus bonus less employee work costs, adds the selected personal super provision and annual business expenses, then applies the risk/profit buffer. Leave and non-billable time reduce the hours available to invoice; they are not added again as a separate dollar benefit.

A useful minimum-rate formula is: required contractor revenue ÷ expected billable hours. Required revenue includes the employee-equivalent package, annual business expenses and the selected risk buffer. Billable hours are reduced by annual leave, public holidays, personal leave, administration, quoting, marketing, training and gaps between projects. This is why dividing an employee salary by 1,976 working hours usually understates the rate.

Employee benefits that need a dollar value

Paid leave is not a bonus on top of working time; it is income received while no client invoice is raised. Employer super is also part of the package even though it is not take-home cash. Other benefits may include bonuses, allowances, equipment, professional development, insurance, paid parental leave and redundancy protections. Enter only benefits that are genuine and likely to be received, but do not compare salary with contractor revenue while silently dropping them.

Some employees also carry costs such as commuting, parking or required clothing. Those costs can be entered on the employee side where they are materially different from contracting. The aim is not to make either option win; it is to put both on the same annual economic basis.

Billable utilisation is the critical assumption

A contractor can work 40 hours and invoice 25. Client delivery may be billable while bookkeeping, software setup, follow-up, proposals and debt collection are not. New contractors regularly overestimate utilisation because a full calendar looks like a full order book. Start with actual records where available. Otherwise, test a conservative billable percentage and a lower stress case.

For example, a contractor working 46 weeks at 38 hours has 1,748 available hours. At 65% utilisation, only 1,136 hours are billable. A $100,000 revenue target therefore requires about $88 an hour before GST, not $57. If utilisation falls to 55%, the required rate rises to about $104.

GST, tax and super are separate cash movements

The comparison is before personal income tax. It does not calculate income tax, HELP repayments or an explicit tax-reserve percentage. GST is shown separately from the ex-GST revenue target. If you need a rate model with a user-entered tax buffer, use the Sole Trader Hourly Rate Calculator; that buffer is still a planning reserve, not a tax assessment.

Super should also be treated separately. A contractor may need to fund retirement savings personally, although some contractor arrangements can still create super obligations for the payer. Legal status and super obligations depend on the real arrangement, not the label on an invoice.

Run three contractor scenarios

1. Base case: use expected expenses, realistic billable weeks and a normal utilisation rate.
2. Slow-work case: reduce billable utilisation and add several unpaid weeks between projects.
3. Higher-cost case: increase insurance, software, accounting and equipment costs while keeping revenue unchanged.

The rate is more defensible when it survives all three scenarios. If the required rate is far above what the market will pay, the answer is not to hide costs. The business model needs higher-value work, lower overheads, more billable capacity or a different income target.

What this comparison cannot decide

The calculator does not determine whether a worker is legally an employee or independent contractor, whether GST registration is required, whether a payer must contribute super, or which expenses are deductible. Those questions depend on the actual working relationship, turnover, contracts and tax law. Use the calculator for the financial comparison, then verify legal and tax obligations separately.

Official sources and review notes

This calculator is general information. The calculations use the assumptions shown on the page and do not determine legal status, eligibility, tax outcomes, lending approval or financial-product suitability.

• Fair Work Ombudsman — Independent contractors — Explains that contractors and employees have different rights and obligations.
• Fair Work — Whole of relationship test — Official guidance on assessing the real relationship.
• ATO — Super guarantee — Current super guarantee settings.
• ATO — Registering for GST — GST registration threshold and obligations.

Related calculators and guides

• Work & Pay CalculatorsBrowse related Australian decision tools.
• Contractor Rate vs Salary in Australia: The Real ComparisonCompare contracting revenue with an employee package after super, leave, expenses, administration and risk.
• How Much Should Australian Contractors Set Aside for Tax and Super?Build a contractor cash reserve for income tax, GST, super and irregular expenses without confusing turnover with spendable income.
• Paid Leave and Public Holidays Contractors Forget to PriceCalculate the hidden cost of unpaid annual leave, sick days and public holidays when setting an Australian contractor rate.
• Hourly Rate vs Day Rate vs Project Fee for Australian ContractorsChoose between hourly, day and project pricing by matching the pricing model to scope, risk and client value.
• Australian Contractor Expenses Checklist: What to Include in Your RateBuild a complete annual expense allowance before quoting contractor work in Australia.

Frequently asked questions