The independent earner tax credit is a small annual credit that reduces income tax for people in a middle income band who are not already receiving certain other support. It is easy to miss on a payslip, and easy to misunderstand when a pay rise seems to “cost” more than the bracket table alone suggests — because the credit can be abating at the same time.
Who it is for
For 2026-27, the IETC can apply if your income is at least $24,000 and below $70,000, and you are not receiving Working for Families tax credits or a main benefit (among other conditions IRD sets). The maximum credit is $520 a year.
Full credit, then abatement
You receive the full $520 up to $66,000. Above that, the credit reduces by 13 cents for each extra dollar of income until it reaches nil at $70,000. That abatement zone is why two salaries that look close on paper can keep different net amounts even before KiwiSaver and student loan.
The abatement is a hidden marginal rate
Inside the abatement band you lose 13 cents of credit for every extra dollar earned, on top of the income tax already charged on that dollar. The practical effect is a marginal rate several points higher than the bracket table implies, for that band only. It is not a penalty and it is not a mistake — it is simply what a phased-out credit does. Knowing the band exists explains an otherwise baffling payslip: a pay rise landing squarely inside it delivers noticeably less than the same rise above $70,000, where there is no credit left to lose.
Claiming it with ME
Using the ME tax code tells payroll to account for the IETC during the year. If you qualify and stay on M, you may still receive the benefit through an end-of-year square-up, but your fortnightly cashflow will look worse in the meantime. If you use ME when you do not qualify, you can under-withhold.
Two situations catch people out. Eligibility depends on your total income for the year, not the income from one job, so a second job can push you past $70,000 while each employer still sees a figure inside the band. And starting or stopping Working for Families or a main benefit part-way through a year changes eligibility part-way through a year, which payroll will not know about unless you tell it. In both cases the square-up eventually corrects the position, but a bill at the end is a poor substitute for the right code at the start.
How FinLab applies it
The take-home calculator can apply the IETC when you leave that option on for a primary job. Compare a salary inside the full-credit band with one above the zero point — for example around $60,000 versus $80,000 — and you will see the credit appear in one result and disappear in the other. That contrast is intentional: it teaches the abatement better than a table alone.
Not a substitute for advice
Eligibility has edge cases (multiple jobs, overseas income, timing of benefits). IRD's published guidance is the authority. FinLab shows the arithmetic of the credit under standard assumptions so you can see the shape of the rule.