Australia vs United Kingdom: Tax Comparison

Compare income tax rates and take-home pay between Australia and United Kingdom

You'd keep $824 more in Australia

Australia

27.0% tax

United Kingdom · London

27.9% tax

$69/mo difference

Side-by-side breakdown

Australia

2025-26

27%

Income

Gross Salary$100,000
Taxable Income$100,000

Taxes & Contributions

First Marginal Tier-$3,038
Second Marginal Tier-$19,130
Third Marginal Tier-$1,610
Medicare Levy-$2,000
Medicare Levy Surcharge-$1,250
Total Taxes-$27,028
NET ANNUAL PAY$72,972
Per Month$6,081
Effective Rate27.0%

United Kingdom · London

2025-26

28%

Income

Gross Salary$100,000
Personal Allowance-$16,845
Taxable Income$83,155

Taxes & Contributions

Basic Rate-$10,105
Higher Rate-$13,053
National Insurance (Class 1 Employee)-$4,694
Total Taxes-$27,852
NET ANNUAL PAY$72,148
Per Month$6,012
Effective Rate27.9%

Tax rate by income level

Australia
United Kingdom

Understanding the difference

Healthcare: Bundled vs. Unbundled

Australia wraps healthcare into your taxes via Medicare Levy, but then charges a surcharge if you don't buy private insurance, creating a second bite. The UK folds the whole NHS into National Insurance, so you're covered either way with no penalties for staying public.

Superannuation Reality Check

Australia's employer super contributions (12% of salary) don't show up in take-home, but they're a massive retirement asset you don't control today. The UK has no equivalent, so what you earn is closer to what you actually get to spend or save yourself.

The Bracket Cliff

UK jumps from 20% to 40% income tax at a relatively modest threshold, making mid-career earners feel the pain fast. Australia climbs more gradually but tops out higher (45%), so high earners in the UK often keep more of their last pound than Australians keep of their last dollar.

Who Wins: The Honest Answer

For middle-income earners, Australia's smoother tax curve and forced super are better long-term wealth builders. The UK wins if you value simplicity and immediacy, paying less tax upfront and controlling your own retirement savings.

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