International Self-Employment Tax Comparison

Compare self-employment tax obligations across the US, UK, Canada, Australia, Germany, France, Netherlands, and Singapore. See how freelancer taxes differ by country.

Guide Overview

Self-employment contributions vary dramatically by country. The same business profit can face different contribution bases, income caps, mandatory schemes, and tax treatment. These calculators help compare the planning assumptions used across eight countries.

Focus: international self-employment tax comparison for freelancers and digital nomads

US Self-Employment Tax: The 15.3% Baseline

American freelancers pay self-employment tax at an effective rate of about 14.1 percent (15.3 percent on 92.35 percent of net earnings). This covers Social Security (12.4 percent, capped at $184,500) and Medicare (2.9 percent, uncapped). Half is deductible on your income tax return. Compared to other countries, the US rate is moderate but applies to all net earnings with no minimum threshold.

UK National Insurance: Class 4 on Profits

For 2026–27, UK self-employed workers with profits of at least £7,105 have Class 2 NI treated as paid rather than paying a weekly charge. Workers below that threshold can choose voluntary Class 2 at £3.65 per week. Class 4 is 6 percent on profits between £12,570 and £50,270, plus 2 percent above that. UK freelancers also face income tax above the personal allowance.

Germany, France, and the Netherlands all require self-employed workers to fund their own social insurance. Germany’s combined health and care insurance alone runs around 20 percent of income. France’s 2026 micro-enterprise rate for non-regulated BNC services is 25.6 percent of turnover. The Netherlands generally charges self-employed workers the 2026 ZVW assessment rate of 4.85 percent, plus applicable national-insurance premiums. These contributions can rival or exceed income tax in total burden.

Low-Tax Options: Singapore and Australia

Singapore self-employed workers contribute to MediSave when annual net trade income exceeds S$6,000. The 2026 rates start at 4–5.25 percent, phase in between S$12,000 and S$18,000, and reach 8–10.5 percent above S$18,000 depending on age. Australia has no separate self-employment tax, although most residents pay the general 2 percent Medicare Levy and higher-income taxpayers without suitable private cover may also pay the Medicare Levy Surcharge.

Editorial Review and Sources

Reviewed by the ConvertCrunch Editorial Team. We use primary-source documentation where possible and update guide assumptions when official rates or rules change. See our editorial policy.

Tools in This Guide

Use these tools in sequence based on your workflow needs.

US Self-Employment Tax Calculator

Calculate your US self-employment tax (Social Security + Medicare) based on your net earnings, including the 92.35% taxable base and deductible half.

UK Self-Employment Tax Calculator

Estimate 2026–27 UK Class 4 National Insurance and see when Class 2 is treated as paid or available voluntarily.

Canada Self-Employment Tax Calculator

Calculate CPP or QPP contributions for self-employed individuals in Canada, including CPP2 on the second earnings ceiling.

Australia Self-Employment Tax Calculator

Calculate the Australian Medicare Levy and Medicare Levy Surcharge for sole traders and self-employed workers.

Germany Self-Employment Tax Calculator

Calculate German social insurance contributions (health, long-term care, optional pension) for self-employed freelancers.

France Self-Employment Tax Calculator

Calculate French cotisations sociales for auto-entrepreneurs (micro-enterprise) and régime réel self-employed workers.

Netherlands Self-Employment Tax Calculator

Calculate Dutch ZVW health contribution and social insurance premiums (AOW, ANW, WLZ) for self-employed zzp’ers.

Singapore Self-Employment Tax Calculator

Calculate CPF MediSave contributions for self-employed individuals in Singapore based on age and net trade income.

Frequently Asked Questions

How do Australia and Singapore treat self-employment contributions?

Australia has no separate self-employment contribution; its Medicare Levy generally applies to taxable income regardless of employment type. Singapore requires self-employed people above the income threshold to contribute to MediSave. Total tax burden still depends on income, residency, deductions, and each country’s wider tax rules.

Do I have to pay self-employment tax in multiple countries?

Generally, you pay social security contributions in one country based on where you work or reside. Tax treaties and totalization agreements prevent double taxation in most cases. Consult a tax advisor for your specific situation.

Are these calculators updated for the current year?

Yes. Each country calculator uses the most recent published rates and thresholds. We update them when tax authorities release new figures.

Last updated: August 24, 2026