Income Tax Guide - NZ Tax Calculator

Q: What are the income tax rates in New Zealand for 2026/27?

New Zealand uses progressive brackets: 10.5% up to $15,600, 17.5% to $53,500, 30% to $78,100, 33% to $180,000, and 39% above $180,000. Only the income in each band is taxed at that band rate.

💰 Understanding NZ Income Tax

New Zealand uses a progressive income tax system where higher income is taxed at higher rates. Understanding tax brackets, marginal vs effective rates, and how PAYE works helps you plan financially and minimise tax liability legally.

                Key Point: NZ has five income tax brackets ranging from 10.5% to 39%. You pay different rates on different portions of income (marginal rates). Your average tax rate (effective rate) is always lower than your top marginal rate. PAYE withholds tax from wages, while self-employed pay provisional tax.
            

2024/25 Income Tax Rates

Annual Income	Tax Rate	Tax on Bracket
$0 - $15,600	10.5%	Up to $1,638
$15,601 - $53,500	17.5%	Up to $6,632.50
$53,501 - $78,100	30%	Up to $7,380
$78,101 - $180,000	33%	Up to $33,627
Over $180,000	39%	No limit

How Progressive Tax Works

Example: $75,000 income

First $15,600 at 10.5% = $1,638

Next $37,900 ($15.6K-$53.5K) at 17.5% = $6,632.50

Last $21,500 ($53.5K-$75K) at 30% = $6,450

Total Tax: $14,720.50

Effective Rate: $14,720.50 ÷ $75,000 = 19.6%

Marginal Rate: 30%

Marginal vs Effective Tax Rate

Marginal Rate:

Tax rate on your last dollar earned. Determines tax on additional income like bonuses or raises.

Earning $75,000 → 30% marginal rate

$1,000 bonus → pays $300 tax

Take home: $700

Effective Rate:

Average tax rate across all income. Total tax divided by total income.

Income	Total Tax	Marginal Rate	Effective Rate
$30,000	$4,158	17.5%	13.9%
$60,000	$10,220.50	30%	17.0%
$100,000	$22,877.50	33%	22.9%
$200,000	$57,077.50	39%	28.5%

PAYE (Pay As You Earn)

Employers withhold PAYE tax from wages automatically each pay period.

How PAYE Works:

Employer calculates tax on each payment
Deducts PAYE before paying you
Sends PAYE to IRD monthly or twice-monthly
You receive net (after-tax) pay

PAYE Calculation Example:

Annual salary: $65,000

Fortnightly gross: $2,500

Annual tax: $11,720.50

Fortnightly PAYE: $451

Fortnightly net: $2,049

Tax Codes

Tax codes tell employers how much PAYE to withhold:

Code	Meaning	Use When
M	Primary income	Main job, includes tax-free threshold
ME	Primary + ESCT	Main job with student loan
SB	Secondary income	Second job, no tax-free threshold
S	Secondary lower	Small second income
ST	Secondary higher	Large second income

⚠️ Wrong Tax Code Consequences

Using M code on second job: Under-withheld tax, owing money at year end
Using SB code on main job: Over-withheld tax, giving IRD interest-free loan
Always use M (or ME with student loan) for highest income source, SB for additional jobs.

Self-Employed Tax

Provisional Tax:

Self-employed pay tax in installments during the year, not at year end.

Residual income tax >$5,000 → pay provisional tax

Three payments: 28 Aug, 15 Jan, 7 May

Based on prior year income + 5%

Example:

2024 profit: $80,000, Tax: $17,020

2025 provisional tax: $17,020 + 5% = $17,871

Three payments: $5,957 each

Reducing Tax Legally

1. Income Splitting (Couples):

One earner $120K (tax $31,970) + partner $0

vs Both earn $60K (tax $11,020 each = $22,040)

Savings: $9,930 through partnerships/trusts

2. Business Expenses (Self-Employed):

Home office deductions
Vehicle running costs
Equipment and supplies
Professional development

3. KiwiSaver Contributions:

Tax-deductible for self-employed up to certain limits.

4. Charitable Donations:

Donate $5,000 → tax credit 33.33%

Reduces tax by $1,667

🔢 Tax Calculations

Example 1: Employee $55,000 Salary

$0-$15,600 at 10.5% = $1,638

$15,601-$53,500 at 17.5% = $6,632.50

$53,501-$55,000 at 30% = $450

Total Tax: $8,720.50

Take-home: $46,279.50

Monthly net: $3,857

Example 2: High Earner $220,000

$0-$15,600 at 10.5% = $1,638

$15,601-$53,500 at 17.5% = $6,632.50

$53,501-$78,100 at 30% = $7,380

$78,101-$180,000 at 33% = $33,627

$180,001-$220,000 at 39% = $15,600

Total Tax: $64,877.50

Take-home: $155,122.50

Effective rate: 29.5%

Example 3: Second Job Income

Main job: $45,000, Second job: $15,000

Wrong Way (Both use M code):

Each job withholds as if only income

Main: $6,783 withheld

Second: $1,575 withheld

Total withheld: $8,358

Actual tax on $60K: $10,220.50

Owe IRD: $1,862.50 at year end!

Right Way (M + SB):

Main (M code): $6,783

Second (SB code): $4,500 (30% withheld)

Total: $11,283

Small refund of $1,062.50

Example 4: Self-Employed Business

Revenue: $120,000

Expenses: $35,000

Taxable profit: $85,000

Tax: $17,927.50

Less provisional paid: $17,000

Terminal tax: $927.50

Example 5: Bonus Impact

Salary $95,000, Bonus $10,000

Marginal rate: 33%

Tax on bonus: $10,000 × 33% = $3,300

Take-home bonus: $6,700

Total income: $105,000

Total tax: $24,527.50

🌍 Real-World Tax Scenarios

Career Progression

Year	Income	Tax	Take-home	Effective Rate
2020 (Graduate)	$48,000	$7,308	$40,692	15.2%
2022 (Promoted)	$70,000	$13,220.50	$56,779.50	18.9%
2024 (Senior)	$105,000	$24,527.50	$80,472.50	23.4%
2026 (Manager)	$150,000	$39,377.50	$110,622.50	26.3%

Observation: Each promotion increases effective rate. At $150K, keeping 73.7% of gross income.

Contractor vs Employee

Employee Option:

Salary: $85,000

Tax: $17,927.50

KiwiSaver (3%): $2,550

Take-home: $64,522.50

Contractor Option:

Contract rate: $95,000 (gross)

Business expenses: $8,000

Taxable income: $87,000

Tax: $18,587.50

ACC levy: $1,500

Take-home: $66,912.50

Extra: $2,390/year

Part-Time Work While Studying

Part-time earnings: $18,000

Tax: $2,058

Student loan repayment (12%): $480

Take-home: $15,462

Monthly: $1,289

Rental Income

Salary $75,000 + Rental $15,000

Rental income: $15,000

Rental expenses: $8,000

Net rental income: $7,000

Total income: $75,000 + $7,000 = $82,000

Tax on salary: $14,720.50

Tax on rental (30% then 33% marginal): $2,217

Total tax: $16,937.50

🎯 Test Your Knowledge

Quiz on NZ Income Tax

1. NZ's highest income tax rate is:

33%

39%

45%

30%

2. Income $50,000. What's the tax?

$10,500

$7,658

$15,000

$7,420

3. Marginal tax rate means:

Average tax rate on all income

Tax rate on your last dollar earned

Total tax paid

Tax rate on first $15,600

4. M tax code should be used for:

Your main/highest income source

All jobs

Second job

Self-employment

5. Income $90,000, earn $5,000 bonus. Tax on bonus:

$1,500

$1,650 (33% marginal)

$525

$1,950

6. The 39% tax rate applies to income over:

$150,000

$180,000

$200,000

$100,000

7. PAYE stands for:

Pay As You Earn

Pay All Your Earnings

Public Annual Year End

Provisional Annual Year Estimate

8. Provisional tax applies when residual income tax exceeds:

$2,500

$5,000

$10,000

$0 (always)

9. Income $200,000. Effective tax rate approximately:

39%

33%

29%

25%

10. Second job tax code should typically be:

🧮 Try Tax Calculator

Frequently Asked Questions

What are the income tax rates in New Zealand for 2026/27?

New Zealand uses progressive brackets: 10.5% up to

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Reviewed and maintained. Last reviewed 2026-06-22 and checked on a twice-monthly cycle against IRD, RBNZ and Stats NZ. How we keep data current.

5,600, 17.5% to $53,500, 30% to $78,100, 33% to

If you've found a bug, or would like to contact us, or learn more about James Graham and Calculate.co.nz.

Calculate.co.nz is partnered with Interest.co.nz for New Zealand's highest quality calculators and financial analysis.

All calculators and tools are provided for educational and indicative purposes only and do not constitute financial advice.

Calculate.co.nz is also partnered with Health Based Building and Premium Homes to promote informed choices that lead to better long-term outcomes for Kiwi households.

Calculate.co.nz is hosted in Auckland via SiteHost new Zealand.

Reviewed and maintained. Last reviewed 2026-06-22 and checked on a twice-monthly cycle against IRD, RBNZ and Stats NZ. How we keep data current.

80,000, and 39% above

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Calculate.co.nz is partnered with Interest.co.nz for New Zealand's highest quality calculators and financial analysis.

All calculators and tools are provided for educational and indicative purposes only and do not constitute financial advice.

Calculate.co.nz is also partnered with Health Based Building and Premium Homes to promote informed choices that lead to better long-term outcomes for Kiwi households.

Calculate.co.nz is hosted in Auckland via SiteHost new Zealand.

Reviewed and maintained. Last reviewed 2026-06-22 and checked on a twice-monthly cycle against IRD, RBNZ and Stats NZ. How we keep data current.

80,000. Only the income in each band is taxed at that band rate.

How do tax brackets work?

They are marginal. Moving into a higher bracket only taxes the portion of income above the threshold at the higher rate, not your whole income, so a pay rise never leaves you worse off overall.

Is income tax the only deduction from my pay?

No. PAYE income tax is deducted alongside the ACC earner levy, and, where they apply, KiwiSaver contributions and student loan repayments. Your take-home pay is what remains after all of these.

Do I need to file a tax return?

Most salary and wage earners do not. Inland Revenue issues an automatic income tax assessment after the tax year. You may need to act if you have untaxed income or want to claim certain credits.

If you've found a bug, or would like to contact us, or learn more about James Graham and Calculate.co.nz.

Calculate.co.nz is partnered with Interest.co.nz for New Zealand's highest quality calculators and financial analysis.

All calculators and tools are provided for educational and indicative purposes only and do not constitute financial advice.

Calculate.co.nz is also partnered with Health Based Building and Premium Homes to promote informed choices that lead to better long-term outcomes for Kiwi households.

Calculate.co.nz is hosted in Auckland via SiteHost new Zealand.

Reviewed and maintained. Last reviewed 2026-06-22 and checked on a twice-monthly cycle against IRD, RBNZ and Stats NZ. How we keep data current.