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HEAD-TO-HEAD TAX COMPARISON · 2026

COUNTRY A USA VS COUNTRY B Australia

Side-by-side analysis of income tax, effective rates, and take-home pay for USA and Australia in 2026.

Daniel · CountryTaxCalc Updated October 2026 Tax Comparison 2026
Calculate your take-home → See all comparisons →
OVERVIEW
Australia has no state income tax (abolished 1942), but on income tax alone the USA is still cheaper at $50,000 to $150,000. A $150,000 earner in California pays about $34,300 in federal and state income tax, versus about $39,600 in Australia (including the 2% Medicare levy); in a no-tax state like Texas the US figure is $24,700. These figures exclude US Social Security and Medicare payroll tax (7.65%), and Australian amounts are in AUD on the same nominal salary with no currency conversion. Including payroll tax, a $100,000 Californian pays about $25,700 against $22,500 in Australia. Choose USA if: you're in a no-tax state like Texas or Florida, or want the lowest income tax bill. Choose Australia if: you'd live in a high-tax US state and payroll tax matters, or value the 12% employer Super contribution.
Section 01

The Big Picture

Top-line rates and effective take-home for a typical earner — including income tax, social contributions, and applicable surcharges.

🇺🇸
COUNTRY A
USA
TAX RATE
37%
Federal Rate

Plus state tax 0-13%

🇦🇺
COUNTRY B
Australia
TAX RATE
45%
Top Rate

Progressive brackets

TYPICAL ANNUAL DIFFERENCE
Moving from Australia → USA at $100,000
$9,350

That's $779/month back in your pocket

Section 02

Tax Savings by Income Level

Net take-home after all income tax, social contributions, and surcharges — for a single employee with no dependents.

GROSS INCOME
🇺🇸 US TAX
🇦🇺 AU TAX
SAVINGS
10-YEAR
$50,000
$3,820 (federal only)
$6,270 (incl. Medicare)
USA saves $2,450
$24,500
$75,000
$7,670 (federal only)
$14,520 (incl. Medicare)
USA saves $6,850
$68,500
$100,000
$13,170 (federal only)
$22,520 (incl. Medicare)
USA saves $9,350 (no-tax state)
$93,500
$150,000
$24,734 (federal only)
$39,570 (incl. Medicare)
USA saves $14,836 (no-tax state)
$148,360
$100,000 (CA)
$18,081 (fed + CA income tax)
$22,520 (incl. Medicare)
USA saves $4,439
$44,390
$150,000 (CA)
$34,295 (fed + CA income tax)
$39,570 (incl. Medicare)
USA saves $5,275
$52,750
💡

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🇺🇸

USA Pros & Cons

+ PROS
  • No-tax states: Texas, Florida, Nevada = 0% state income tax
  • Foreign Earned Income Exclusion: Exclude up to $132,900+ if living abroad
  • Lower top federal rate (37%) than Australia's 45%
  • Higher standard deduction ($16,100 single, 2026)
− CONS
  • High-tax states add 9-14.7%: California (13.3%), NYC (14.7% combined)
  • Healthcare costs are massive without employer coverage
  • US citizens taxed on worldwide income even living abroad
🇦🇺

Australia Pros & Cons

+ PROS
  • No state income tax anywhere in Australia (abolished 1942)
  • Mandatory 12% employer Super contribution (retirement, from 1 July 2025)
  • $18,200 tax-free threshold vs USA's $0 threshold
  • Medicare included via 2% levy (no insurance needed)
− CONS
  • Higher top rate: 45% + 2% Medicare levy = 47%
  • Non-residents pay 30% from dollar one (no threshold)
  • Cost of living in Sydney/Melbourne significantly higher
FAQ

Frequently Asked Questions

How much tax will I pay in USA vs Australia at $100,000?

At $100,000: USA federal income tax is about $13,170, plus state income tax (0% in Texas, about $4,900 in California after the personal exemption credit). Australia charges about $22,520 including the 2% Medicare levy. On income tax alone the USA is cheaper in both cases (about $13,170 in Texas, about $18,081 in California). Adding US payroll tax (Social Security and Medicare, $7,650 at $100,000) brings a Californian to about $25,731, slightly above Australia's $22,520.

Do US citizens pay taxes when living in Australia?

Yes—US citizens must file Form 1040 reporting worldwide income regardless of where they live. The Foreign Tax Credit usually eliminates US liability since Australian rates are higher. The FEIE can exclude up to $132,900+ of earned income. You'll file both Australian and US returns annually.

What's the real difference including healthcare?

Australia's 2% Medicare levy covers universal healthcare. In the USA, employer health insurance averages $6,000-$12,000/year employee cost. Add this to the tax comparison: a $100,000 Californian might pay $18,081 income tax + $8,000 healthcare = $26,081, vs Australia's $22,520 all-inclusive (the US figure excludes $7,650 of Social Security and Medicare payroll tax).

Does Australia have state income tax?

No—Australia abolished state income taxes in 1942 and never brought them back. This is the biggest advantage over the USA: Sydney and Melbourne have 0% state tax. Compare to California (13.3%), New York City (14.7% combined), or New Jersey (10.75%). For high earners, this alone can mean $15,000+ annual savings.

What's Australian Superannuation and why does it matter?

Super is mandatory employer retirement contributions—12% of salary from 1 July 2025 (increased from 11.5%). Unlike US 401(k) which is optional and averages 3-6% match, every Australian employee automatically builds significant retirement savings. On a $100,000 salary, that's $12,000/year your employer pays into your retirement.
From the brief
NL27%new 2027 rate, down from 30%
DK65.4kkr/mo threshold, cut from 78k
MT1940snon-dom regime unchanged since
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