RateCalculator
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What should you actually charge?

Not what feels competitive — what the maths requires. Income, overheads and realistic billable hours in; your minimum hourly rate, day rate and GST-inclusive figure out.

Built for contractors Billable-hours reality check Sends straight to a quote
$
$
wk
hr
%
Charge at least
$95

Billable hours / year
Revenue needed
Per working week
Day rate (8 hrs)

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Why contractors systematically undercharge

The instinctive way to set a contract rate is to take the salary you used to earn and divide by 2,080 — fifty-two 40-hour weeks. A $90,000 salary becomes "$43 an hour", you add a bit, quote $55, and feel expensive.

Eighteen months later you are exhausted and somehow earning less than you did employed. The arithmetic explains it. You do not bill 2,080 hours. Take off four weeks of leave and statutory holidays and you are near 1,840 working hours — and then quoting, invoicing, travel, admin and empty weeks take their share. At a realistic 60% billable, you have about 1,100 hours a year that earn anything. Spread $96,000 of income-plus-overheads across those and the break-even is roughly $87 an hour — before profit, and before anything goes wrong.

That is what this calculator makes visible: not what you are worth, but what you must charge for the business to work at all. Quote below the number it gives you and the shortfall is coming out of your evenings.

Reading the result

The headline figure is rounded up to the next $5 because nobody quotes $87.27. The exact break-even sits underneath, the day rate assumes eight billable hours, and the GST line shows what actually appears on your invoice if you are registered. Treat the result as your floor — competitive positioning goes on top of it, never below.

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Rate questions, answered

How do I work out my hourly rate as a contractor?
Start from the income you need, add your business overheads, then divide by the hours you can actually bill — not the hours you work. After holidays, admin, quoting and slow weeks, most solo contractors bill 50–70% of their working hours. That division is why a contractor charging $85/hour is often earning less than a $70k salary.
Why can't I just match my old salary's hourly equivalent?
Because an employer was paying for your holidays, sick leave, ACC, KiwiSaver contribution, equipment, software and downtime on top of the hourly figure. As a contractor those all come out of your rate. The common rule of thumb is that matching a salary takes a contract rate 40–70% higher than the salary's raw hourly equivalent.
What percentage of my hours are billable?
For most solo operators, 50–70%. Quoting, invoicing, travel between jobs, emails, tools maintenance and marketing all eat the rest. If you assume 100% billable when setting your rate, you have built a 30–50% pay cut into your pricing before you start.
Should I quote my rate including or excluding GST?
To businesses, always quote ex GST — they claim it back and expect ex-GST pricing. To consumers, quote the GST-inclusive number, because that is what they will actually pay. Either way the invoice must show the GST separately, which the invoice generator in this network does automatically.
How does ACC affect my rate?
As a self-employed person you pay ACC levies yourself, invoiced annually and based on your liable income and industry classification. It is genuinely part of your cost of working, so include an estimate in the overheads box — for most desk-based work it is modest, for physical trades it is materially more.
Is this calculator free and private?
Yes. No signup, nothing uploaded — your figures stay in your browser. The site is funded by ads and affiliate links.