Baseline (KS 0%, no SL)
$62,322
Baseline take-home
This page models New Zealand sole-trader tax on $80,000 annual turnover with NZ$0 expenses (2026/27). With KiwiSaver opted out and no student loan: taxable profit $80,000, income tax about $16,278, ACC earner levy about $1,400, take-home about $62,322. That turnover is about $6,667/month before tax. Use the calculator below to add expenses, KiwiSaver, or student loan.
By Sammy S. · Founder · AuthorUpdated for 2026
Baseline (NZ$0 expenses, KS opted out)
$62,322
Tax $16,278 · ACC $1,400 · 22.1% effective
With student loan (same turnover)
$55,617
SL $6,705 · 30.5% effective
Pre-filled with $80,000 turnover and NZ$0 expenses. Toggle KiwiSaver or student loan below.
Sole trader inputs (NZD)
Enter turnover and expenses — we model income tax, ACC earner levy, GST likelihood, and provisional tax
GST-exclusive tax base. GST registration flag uses turnover vs $60,000 unless you override.
Allowable business costs — capped at turnover in this model.
Default is opted out (0%).
Include compulsory student loan when applicable
Need invoice GST maths? See the New Zealand GST calculator or the New Zealand paycheck calculator.
This tool flags GST registration likelihood only. Use the GST calculator to add or remove the IRD 15% rate on invoice amounts.
GST Calculator New ZealandSole trader hubThe take-home and tax figures above come from the turnover, expenses, and options you enter—not a third-party feed. We treat taxable profit as turnover minus deductible expenses, then apply the same New Zealand PAYE + ACC earner levy engine used for employment modelling. GST registration likelihood and provisional-tax instalment hints use published IRD thresholds. Below are the formulas, steps, and a worked example from the same engine as the live calculator.
$80,000 turnover, $0 expenses, KiwiSaver 0%, student loan off, 2026/27
| Annual turnover | $80,000 |
| Expenses | $0 |
| Taxable profit | $80,000 |
| Income tax | $16,278 |
| ACC earner levy | $1,400 |
| Take-home | $62,322 |
| GST registration likely | Yes |
| Provisional hint / instalment | $5,426 |
| Effective tax rate | 22.1% |
Expenses cannot exceed turnover. Profit is the base for income tax and ACC earner levy.
Same PAYE engine options used for New Zealand employment modelling; KiwiSaver defaults to opted out (0%).
Uses published IRD rates for tax year 2026/27.
Flags are educational likelihoods — not GST ledgers or IRD provisional notices.
Component lines are rounded to whole NZD; take-home uses additive total tax for display consistency.
This page models New Zealand sole-trader tax on $80,000 annual turnover with NZ$0 expenses (2026/27). With KiwiSaver opted out and no student loan: taxable profit $80,000, income tax about $16,278, ACC earner levy about $1,400, take-home about $62,322. That turnover is about $6,667/month before tax. Use the calculator below to add expenses, KiwiSaver, or student loan.
Baseline solves from the same engine as the live calculator (KiwiSaver opted out, no student loan).
| Line | Amount |
|---|---|
| Taxable profit | $80,000 |
| Income tax | $16,278 |
| ACC earner levy | $1,400 |
| Total tax | $17,678 |
| Take-home | $62,322 |
| Effective rate | 22.1% |
GST registration is likely at $80,000 turnover (IRD threshold $60,000). This page flags likelihood only — it does not model GST collected or remitted.
Provisional tax may apply — educational three-instalment hint ≈ $5,426 each (confirm method with IRD; not standard uplift, estimation, or AIM).
Baseline (KS 0%, no SL)
$62,322
Baseline take-home
+ Student loan
$55,617
SL ≈ $6,705
+$10,000 expenses
$55,554
Profit $70,000
$80,000 a year is about $6,667 per month of business income before expenses and tax.
On the expenses=0 baseline (KiwiSaver opted out), income tax is about $16,278 and ACC earner levy about $1,400, leaving roughly $62,322 take-home.
ACC work levy by industry remains outside this model — confirm classification rates separately if they apply to your trade.
GST registration is likely at $80,000 turnover (IRD threshold $60,000). This page flags likelihood only — it does not model GST collected or remitted.
Provisional tax may apply — educational three-instalment hint ≈ $5,426 each (confirm method with IRD; not standard uplift, estimation, or AIM).
Confirm registration and provisional options on ird.govt.nz — this tool does not replace IRD systems.
Claiming $10,000 deductible expenses reduces taxable profit to $70,000 and total tax to about $14,446 (take-home from that profit ≈ $55,554).
Enabling student loan reduces take-home to about $55,617 with about $6,705 modelled repayment.
Selecting 3% KiwiSaver on this expenses=0 vignette lowers take-home to about $59,922 (KiwiSaver ≈ $2,400).
For employment PAYE from a known salary, use the New Zealand paycheck calculator. For salary needed to hit a take-home target, use Net to Gross New Zealand.
For add/remove GST on invoice amounts at the IRD standard rate, open the New Zealand GST calculator.
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