How to set your contractor day rate in NZ (and actually make enough)

Most NZ contractors set their rate by guessing what the market pays or adding a margin to their old salary. Both approaches leave money on the table or price you out of work depending on which direction you guess wrong.

Setting a rate that actually works requires building it from what you need to earn, not from what you think sounds reasonable. The maths is simple once you know what goes into it.

Step 1: Start with your target income

Start with the annual income you want to take home after tax. Not gross, not what you earned as an employee: the actual after-tax cash you need to live on and save.

If you're not sure, use your most recent salary as a baseline and adjust for what's changed: rent, mortgage, KiwiSaver you're now funding yourself, private health insurance, business expenses.

For this example, assume a target take-home of $80,000 after tax.

Step 2: Work backwards to the gross you need

As a sole trader or contractor, your income is taxed at marginal rates through your IR3. At $80,000 take-home, you need roughly $113,000 to $115,000 gross depending on your deductions (use the IRD tax calculator at ird.govt.nz for a precise number).

Also account for ACC levies. In 2025-2026, the earners levy is $1.60 per $100 of liable earnings, plus a work levy that varies by industry. For office-based contractors, total ACC is typically 1.5 to 2% of income.

Add it up: if your target is $80,000 take-home, your gross revenue target is around $115,000 to $120,000 before expenses.

Step 3: Subtract non-billable time

You can't bill every day of the year. Here's what to subtract from 260 working days:

- Public holidays: 11 days - Annual leave (you fund this yourself): 20 days - Sick days and personal leave: 5 to 10 days - Sales, proposals, and business development: 10 to 15 days - Admin, invoicing, tax: 5 days - Professional development: 3 to 5 days

A realistic estimate: 200 to 215 billable days per year for most contractors. New contractors often land at the lower end while they build pipeline.

Step 4: Calculate your minimum day rate

Divide your gross revenue target by your billable days:

$120,000 / 205 days = $585 per day minimum

This is the floor: the rate at which you break even on your income target. Go below this and you'll either work more than 205 days or take home less than you planned.

Add a margin for unexpected non-billable time, slow months, and the cost of running your business (software, accounting, insurance, hardware). A 15 to 20% buffer is realistic:

$585 x 1.20 = $702 per day target rate

Step 5: Account for business overhead

The calculation above doesn't include your business running costs. These reduce your effective income unless you price them in separately. Common overhead for NZ contractors:

- Accounting and tax preparation: $1,500 to $3,000/year - Professional indemnity insurance: $800 to $2,500/year depending on sector - Software and tools: $500 to $2,000/year - Home office or co-working: $0 to $6,000/year - Phone and internet (business portion): $600 to $1,200/year

Add up your actual overhead, divide by your billable days, and add it to your day rate. If overhead totals $6,000/year over 205 days, that's $29/day on top of your income-based rate.

Step 6: Check against the market

Your cost-based rate tells you the floor. Market rates tell you the ceiling and reality check.

For NZ contractors, useful sources include: - Seek: search for roles at your level to see advertised permanent salaries, then multiply by 1.3 to 1.5 to get a rough contractor equivalent - Trade Me Jobs: similar to Seek, also posts some contract roles with day rates - Contractor communities: LinkedIn groups for NZ contractors in your field often share rate benchmarks informally - Your recruiter: if you work through agencies, ask directly what roles in your skillset are currently paying

If market rates are below your cost-based floor, something needs to change: either your overhead, your income expectations, or the type of work you're targeting.

Free contractor rate calculator

PayWren's contractor rate calculator walks through each variable and shows your minimum and target day rate based on your actual numbers.

Enter your target take-home, expected billable days, overhead costs, and tax situation. The calculator handles the marginal tax rates, ACC levies, and GST separation automatically.

It also shows what happens if you change any variable: fewer billable days, higher overhead, a different income target. Useful for scenario-testing before you commit to a rate.