Australia vs New Zealand Income Tax Calculator: What You Need to Know

If you are comparing Australia vs New Zealand income tax, the headline tax rates are only part of the picture. Your actual tax position can depend on your tax residency, income level, deductions, levies, overseas income and whether you are working or living across both countries.

Australia and New Zealand both use progressive individual income tax systems, but their tax brackets, levies and rules are different.

Quick answer: An Australia vs New Zealand income tax comparison can help estimate the difference in tax on employment or other taxable income, but a simple salary comparison is not enough for everyone. Australian residents may need to consider the Medicare levy, while New Zealand taxpayers may need to consider the ACC earners’ levy. Cross-border workers also need to consider tax residency and the Australia–New Zealand Double Tax Agreement.

What Does an Australia vs New Zealand Income Tax Calculator Show?

An Australia vs New Zealand income tax calculator is designed to give you an estimated comparison of income tax between the two countries. Depending on the calculator, you may be able to enter your annual income, residency status and other relevant information.

However, an Australia vs New Zealand income tax calculator should be treated as a starting point rather than a complete tax assessment. Cross-border income, deductions, tax residency and applicable levies can change the final result.

For a basic salary comparison, an Australia vs New Zealand income tax calculator can help you understand how the different tax brackets work.

Australia vs New Zealand Income Tax: What’s the Difference?

The biggest mistake people make when comparing Australia and New Zealand income tax is looking only at the highest marginal tax rate.

A meaningful comparison should consider:

1. Taxable income
2. Tax residency
3. Marginal tax rates
4. Tax-free thresholds
5. Medicare levy in Australia
6. ACC earners’ levy in New Zealand
7. Tax deductions
8. Tax credits and offsets
9. Foreign income
10. Double taxation rules

This means that someone earning the same nominal salary in Australia and New Zealand could have a different after-tax position depending on their individual circumstances.

New Zealand Income Tax Rates

New Zealand has a progressive income tax system. This means different portions of your taxable income are taxed at different rates rather than applying one percentage to your entire income.

For individual income from 1 April 2025, the current NZ income tax rates are:

These are marginal tax rates, meaning the higher rate applies only to the portion of income within that bracket.

For the latest official rates, see Inland Revenue’s current individual income tax rates.

Does New Zealand Have a Tax-Free Threshold?

New Zealand does not operate a general tax-free threshold in the same way Australia does.

Instead, the first portion of taxable income is currently taxed at 10.5%.

This is an important difference when comparing an Australia vs New Zealand income tax calculator result.

Australia Income Tax Rates

Australia also uses a progressive income tax system.

For the 2026–27 Australian income year, the legislated resident individual rates include:

The Australian rates above relate to resident individual income tax and should not be treated as the final amount payable in every situation. Other factors, including the Medicare levy and applicable offsets, can affect the final result.

For current Australian tax information, refer to the Australian Taxation Office.

What Is Australia’s Tax-Free Threshold?

For Australian tax residents, the tax-free threshold is generally $18,200.

This means the first $18,200 of taxable income is generally not subject to ordinary income tax.

However, eligibility and the treatment of income can depend on your residency and circumstances.

Australia vs New Zealand Tax Rates Compared

However, this table does not tell you exactly which country will result in lower overall tax.

Why?

Because the two systems have different thresholds, levies, deductions, tax credits, residency rules and other mechanisms.

For example, Australian residents may have a Medicare levy, while New Zealand taxpayers may have an ACC earners’ levy.

Australia vs New Zealand Income Tax Calculator: How It Works

An Australia vs New Zealand income tax calculator should ideally compare more than your salary.

A useful comparison can follow these steps:

Step 1: Enter Your Annual Income

Start with your gross annual employment or taxable income.

For example:

Annual income: $100,000

Step 2: Determine Your Tax Residency

Your tax residency affects which tax rules apply.

This is particularly important if you:

• Live in New Zealand but work for an Australian employer
• Move from New Zealand to Australia
• Work in Australia temporarily
• Earn income from both countries
• Own investments in both countries
• Run a business across the Tasman

Step 3: Apply the Relevant Tax Brackets

Your taxable income is divided into the applicable marginal tax brackets.

Step 4: Consider Deductions

Your taxable income may differ from your gross income depending on allowable deductions and the applicable rules.

Step 5: Add Applicable Levies

For example:

• Australia: Medicare levy may apply.
• New Zealand: ACC earners’ levy may apply.

Step 6: Consider Tax Already Paid

PAYE, PAYG withholding or other tax payments may affect the final amount payable.

Step 7: Consider Cross-Border Tax Rules

If you have income in both countries, the Australia–New Zealand Double Tax Agreement may affect which country taxes particular income and how double taxation relief applies.

See IRD’s guidance on Double Tax Agreements for more information.

$100,000 Salary: Australia vs New Zealand Tax Example

A simple salary comparison can help explain why the tax brackets work differently.

Suppose a person earns the equivalent of $100,000 of taxable income.

The exact comparison requires currency conversion if the income is earned in different currencies, and the result will also depend on residency, deductions and levies.

For illustration, consider each country’s tax system separately rather than treating $100,000 NZD and $100,000 AUD as identical amounts.

New Zealand

At $100,000 of taxable income, different portions fall into the NZ marginal tax brackets.

The income tax calculation before other applicable factors is approximately:

• First $15,600 at 10.5%
• Next $37,900 at 17.5%
• Next $24,600 at 30%
• Remaining $21,900 at 33%

Estimated income tax: $22,117.50

This does not include the ACC earners’ levy or other possible adjustments.

Australia

For an Australian tax resident, the calculation works through Australia’s progressive brackets.

The final result can also be affected by the Medicare levy and other relevant circumstances.

This illustrates why simply comparing the top marginal rates can be misleading.

Why an Australia vs New Zealand Income Tax Calculator Can Give Different Results

An Australia vs New Zealand income tax calculator may produce different results depending on whether you are treated as a tax resident of Australia or New Zealand.

The calculator may also need to account for different currencies, tax brackets, deductions and levies. This is why an Australia vs New Zealand income tax calculator should not be used by comparing salary figures alone.

Australia vs New Zealand Take-Home Pay

If your goal is to compare take-home pay in Australia vs New Zealand, you need to look beyond income tax.

Your take-home pay can be affected by:

• Gross salary
• Income tax
• PAYE or PAYG withholding
• ACC earners’ levy
• Medicare levy
• Student loan obligations
• Tax deductions
• Tax offsets
• Superannuation arrangements
• KiwiSaver contributions
• Other payroll deductions

Therefore:

Gross salary − tax − applicable levies − other deductions = approximate take-home pay

The exact calculation will depend on the individual.

Australia Medicare Levy vs New Zealand ACC Earners’ Levy

This is one of the most important differences to understand.

Australian Medicare Levy

Australian residents for tax purposes are generally subject to a 2% Medicare levy on taxable income, although reductions or exemptions may apply.

According to the Australian Taxation Office, the Medicare levy is generally 2% of taxable income, with specific rules for reductions and exemptions.

See the ATO Medicare levy guidance for more information.

The Medicare levy is separate from ordinary income tax.

Some taxpayers may also need to consider the Medicare levy surcharge depending on their income and private hospital insurance circumstances.

New Zealand ACC Earners’ Levy

New Zealand has an ACC earners’ levy that applies to employment earnings and certain other income.

For current rates and thresholds, see IRD’s ACC earners’ levy guidance.

Therefore, when comparing Australia and New Zealand salaries, don’t simply compare the income tax brackets.

You should also consider the applicable levies.

Tax Residency: Australia vs New Zealand

Tax residency is one of the most important issues in a cross-border tax comparison.

Your immigration status, visa status and tax residency are not necessarily the same thing.

New Zealand’s IRD explains that tax residency is determined under specific rules and can affect how New Zealand tax laws and Double Tax Agreements apply to you.

Read IRD’s guidance on individual tax residency for more information.

Why Does Tax Residency Matter?

A New Zealand tax resident will generally pay tax in New Zealand on worldwide income, subject to applicable exemptions, foreign tax credits and double tax agreements.

IRD confirms that New Zealand tax residents generally pay tax on worldwide income, although DTAs and foreign tax credits can affect how particular income is treated.

See IRD’s guidance for New Zealand tax residents with overseas income.

This means moving to Australia does not automatically mean you can simply stop considering New Zealand tax obligations.

Your residency position needs to be assessed.

When Should You Use an Australia vs New Zealand Income Tax Calculator?

An Australia vs New Zealand income tax calculator can be particularly useful if you are comparing employment opportunities, considering a move or reviewing your potential take-home pay.

You may want to use an Australia vs New Zealand income tax calculator when:

• You are considering moving from New Zealand to Australia.
• You are considering moving from Australia to New Zealand.
• You have received job offers in both countries.
• You work for an employer in the other country.
• You earn income from both Australia and New Zealand.
• You want to compare estimated take-home pay.

For straightforward comparisons, an Australia vs New Zealand income tax calculator can make the initial research easier. More complex circumstances require a review of the relevant tax rules.

What If You Live in New Zealand and Work in Australia?

This is a common situation for people with cross-border employment or business interests.

The answer depends on factors such as:

• Where you live
• Where you work
• Your tax residency
• Your employer
• Where the employment duties are performed
• How long you spend in each country
• The type of income
• The applicable Double Tax Agreement

If you are a New Zealand tax resident and receive overseas income, you may still have New Zealand tax obligations.

IRD states that New Zealand tax residents generally pay tax on worldwide income, subject to applicable rules.

You may also be able to claim foreign tax credits in certain circumstances where tax has been paid overseas.

See IRD’s overseas income guidance.

What If You Move From New Zealand to Australia?

Moving countries can create tax consequences that go beyond your salary.

Before or after moving, you may need to review:

• New Zealand tax residency
• Australian tax residency
• Employment income
• Investment income
• Rental properties
• Bank interest
• Shares and investments
• Business interests
• KiwiSaver
• Superannuation
• Foreign income
• Tax returns
• Double taxation relief

IRD advises people leaving New Zealand to determine whether their tax residency has changed and to consider whether a Double Tax Agreement affects their New Zealand income.

See IRD’s guidance for people leaving New Zealand.

Australia–New Zealand Double Tax Agreement

New Zealand and Australia have a Double Tax Agreement (DTA).

The agreement can help determine which country has taxing rights over particular types of income and can provide mechanisms for relief from double taxation.

The current Australia–New Zealand agreement is in force and includes provisions dealing with residency and the allocation of taxing rights.

See the official New Zealand–Australia tax treaty information.

A DTA may be relevant when:

• You are resident in one country and earn income in the other
• You work across both countries
• You receive investment income from the other country
• You own rental property across the Tasman
• You are potentially tax resident in both countries

If both countries have a claim to tax the same income, the DTA may provide rules for allocating taxing rights or providing relief.

The specific treaty provisions depend on the type of income and your circumstances.

Can You Be a Tax Resident of Both Australia and New Zealand?

Potentially, yes.

It is possible for an individual to be considered a tax resident under the domestic rules of both countries.

In that situation, the applicable Double Tax Agreement can contain tie-breaker rules to determine residency for treaty purposes.

IRD confirms that DTAs can include tie-breaker rules where a person is a tax resident in New Zealand and another country.

See IRD’s guidance on dual tax residents.

This is one reason an Australia vs New Zealand income tax calculator cannot determine your complete cross-border tax position using salary alone.

Is Australia or New Zealand Better for Tax?

There is no single answer.

The better tax outcome depends on:

• Your income
• Your residency
• Your family circumstances
• Your deductions
• Your investments
• Your business structure
• Your access to tax credits or offsets
• Applicable levies
• Whether you have overseas income

A person earning a lower salary may have a very different outcome from a high-income earner.

Likewise, someone who is tax resident in New Zealand but earns Australian income may have a different position from someone who permanently moves to Australia and becomes an Australian tax resident.

So rather than asking:

“Is tax lower in Australia or New Zealand?”

the better question is:

“What would my after-tax position be under the rules that apply to my specific circumstances?”

Australia vs New Zealand Tax Calculator: What Information Do You Need?

For a more useful comparison, gather the following information.

Personal Information

• Country of residence
• Tax residency status
• Date of arrival or departure
• Family circumstances

Income Information

• Annual salary
• Business income
• Rental income
• Interest
• Dividends
• Overseas income

Tax Information

• PAYE or PAYG already paid
• Tax deductions
• Tax credits
• Australian Medicare levy circumstances
• New Zealand ACC earners’ levy circumstances

Cross-Border Information

• Country where income was earned
• Country where tax was paid
• Foreign tax credits
• Double Tax Agreement considerations

The more complete the information, the more useful the comparison becomes.

Australia vs New Zealand Income Tax for Businesses

The comparison becomes even more complicated when you operate a business.

Business owners may need to consider:

• Business structure
• Company tax
• Individual income tax
• GST
• Australian GST
• PAYE
• PAYG withholding
• Dividends
• Shareholder income
• Cross-border transactions
• Transfer pricing
• Tax residency
• Permanent establishment
• Double taxation

Therefore, a personal salary calculator should not be used as a substitute for professional advice on a cross-border business structure.

For businesses operating between Australia and New Zealand, professional cross-border tax advice can help identify potential obligations before transactions take place.

Learn more about DFK Orb360’s accounting and tax advisory services.

How to Compare Australia vs New Zealand Income Tax Correctly

Use this five-step process:

1. Compare the Same Currency

Do not compare $100,000 NZD with $100,000 AUD as though they have the same value.

2. Establish Tax Residency

Determine which country’s tax residency rules apply.

3. Calculate Taxable Income

Start with taxable income rather than simply gross salary.

4. Include Levies and Deductions

Consider Medicare, ACC and other relevant factors.

5. Review Cross-Border Rules

If income is earned in both countries, check the applicable DTA and foreign tax credit rules.

Australia vs New Zealand Income Tax Calculator: Frequently Asked Questions

Is income tax higher in Australia or New Zealand?

It depends on your income level and circumstances. Australia and New Zealand use different progressive tax brackets, and additional factors such as Australia’s Medicare levy and New Zealand’s ACC earners’ levy can affect the overall comparison.

Is New Zealand tax cheaper than Australia?

Not necessarily. The answer depends on taxable income, residency, deductions, levies and other circumstances. A simple comparison of headline tax rates does not provide a complete answer.

What is the income tax rate in New Zealand?

From 1 April 2025, New Zealand individual income tax rates range from 10.5% to 39%, depending on the portion of taxable income.

What is the income tax rate in Australia?

Australian resident individual tax rates are progressive. For the 2026–27 income year, the legislated rates include a 0% rate up to the tax-free threshold, followed by 15%, 30%, 37% and 45% marginal rates.

Does Australia have a tax-free threshold?

Yes. Australian tax residents generally have a tax-free threshold of $18,200.

Does New Zealand have a tax-free threshold?

New Zealand does not have a general tax-free threshold equivalent to Australia’s. The first portion of taxable income is currently taxed at 10.5%.

What is the Medicare levy in Australia?

The Medicare levy is generally 2% of taxable income for Australian residents, although reductions and exemptions may apply.

What is the ACC earners’ levy in New Zealand?

The ACC earners’ levy is a separate charge that applies to relevant earnings. The applicable rate and maximum earnings limit can change, so taxpayers should check the current IRD guidance.

If I live in New Zealand and work in Australia, where do I pay tax?

It depends on your tax residency, where the employment is performed, the nature of the income and the Australia–New Zealand Double Tax Agreement. You should not assume that working for an Australian employer automatically makes you an Australian tax resident.

Do New Zealand tax residents pay tax on Australian income?

New Zealand tax residents generally pay tax in New Zealand on worldwide income, subject to applicable rules. Foreign tax credits and the Double Tax Agreement may provide relief where tax has also been paid in Australia.

Can I use an Australia vs New Zealand income tax calculator to decide where to move?

A calculator can help with an initial comparison, but it should not be the only factor. Residency, housing costs, business obligations, investment income, family circumstances and other taxes can significantly affect the overall financial outcome.

Can I be tax resident in both Australia and New Zealand?

You may potentially meet the domestic tax residency rules of both countries. The applicable Double Tax Agreement can contain tie-breaker rules for determining residency for treaty purposes.

Do I need an accountant for Australia–New Zealand tax?

Professional advice is particularly useful when you have income, assets, employment or business interests in both countries. Cross-border tax treatment can depend on residency, treaty provisions and the type of income involved.

Final Takeaway: Australia vs New Zealand Income Tax

An Australia vs New Zealand income tax calculator can be useful for getting a starting estimate, but the result should not be treated as a complete cross-border tax assessment.

Australia and New Zealand both use progressive income tax systems, but their thresholds and additional charges differ.

The most important factors to consider include:

• Your taxable income
• Your tax residency
• The applicable marginal tax rates
• Medicare levy in Australia
• ACC earners’ levy in New Zealand
• Tax deductions and credits
• Foreign income
• Tax already paid
• The Australia–New Zealand Double Tax Agreement

If you are moving between Australia and New Zealand, working across both countries, earning overseas income or operating a cross-border business, getting the tax position right before making decisions can help you avoid unexpected tax liabilities.