Net Income Estimation for NZ Family with Eight Children

This is a rough estimate (many details depend on exact ages of children, rent level, eligibility rules, etc.), but here’s how I’d approximate it.

Step 1: Estimate net take-home from the $70,000 salary

From public tax/ACC schedules:

On a $70,000 salary, you pay about **$ n14,020 PAYE (income tax)** www.salaries.co.nz
In addition, there is an ACC earner’s levy (~1.47% or similar) on your income.
That leaves a net salary (after tax + ACC) of about ** $56,780** approx (i.e. ~$ n70,000 − $14,020 − ~$ n1,200 ACC) www.salaries.co.nz So net from the salary side: ≈ $56,700–57,000 per year.

Step 2: Estimate benefits / tax credits for a family with 8 children

Because you have many dependent children and only one income, you are likely eligible for Working for Families / Family Tax Credit and possibly Accommodation Supplement (help for rent) etc. www.govt.nzSome relevant parameters:

The Family Tax Credit is calculated based on your family income and number of children. www.ird.govt.nz
There is an abatement (reduction) of the full credit once income is over a threshold (for example, over $42,700, the credit is reduced). www.ird.govt.nz
Accommodation Supplement helps with rent (or home ownership costs) for eligible people. www.workandincome.govt.nz
The maximum Accommodation Supplement for a “couple with children" is listed in the benefit tables. www.workandincome.govt.nz However, with 8 children, your family tax credit “full” amount would be quite large before abatement. For example, the full credit is (for each child) a base amount, and then subtract a 27% abatement on income over the threshold. www.ird.govt.nzTo illustrate with a rough guess:
Suppose the “full” family tax credit for 8 kids might sum to something like $7,524 for oldest +$ n6,130 for each additional child (this is the published full credit for children) www.ird.govt.nz
That gives full credit = 7,524 + 7×6,130 = 7,524 + 42,910 = ~50,434 (per year)
Then abatement: income of $70,000 is$ n70,000 − $42,700 =$ n27,300 over threshold, times abatement rate (27%) = $7,371 reduction www.ird.govt.nz
So your net family tax credit might be ~ $50,434 −$ n7,371 = $43,063 (annual) This is a big simplification and the real amount may differ (especially with further reductions, shared-care, etc.).Then accommodation supplement:
In Auckland (high rent area), the maximum possible supplement is higher than in rural areas (Work & Income defines “areas”) www.workandincome.govt.nz
For a “couple with children” the maximum listed in one table is $305 (weekly) for “sole parent, 2+ children” or “couple with children” in certain areas www.workandincome.govt.nz
If you got, say, $200 per week rent help =$ n10,400 per year So combining:
Salary net: ~$56,800
Family tax credit (approx): ~$43,000
Accommodation supplement (approx): ~ $10,000 Total resources: **~$ 109,800 per year** (before subtracting your rent cost from that).But you pay rent yourself; the accommodation supplement only helps a portion. So your disposable income after rent might be (Total resources) minus rent. If rent in Auckland for a large house is, say, $n1,200–$ 2,500+ per week (for a big family), that’s $n62,400 to$ 130,000 per year — but realistically, for 8 children you’d seek a big rental, maybe $n1,800/week = ~$ 93,600/yr. That’s huge, and likely unrealistic for renting in Auckland — most families with 8 children might have much lower rent or be in subsidised housing.If your rent is, say, $n1,200/week =$ 62,400/year:
Net salary + credits = ~$109,800
Rent cost = $62,400
Leaves ~$47,400 for all other costs (food, transport, utilities, etc.)

Summary estimate

Putting it all together, a rough ballpark for net income + benefits for your described family might be in the range of NZD $100,000 to$ n120,000 before housing costs, or perhaps $40,000 to$ n60,000 left after rent, depending heavily on your rent.If you tell me the rent amount, ages of the children, and whether you already receive any benefits, I can make a more precise estimate. Do you want me to do that?