BizTaxCalc Blog: Country guides
Guides and comparisons on business and freelance tax across 13 countries, written to be genuinely useful and backed by official sources.
Country guides
Working under an ABN in Australia: the complete sole trader tax guide
A practitioner's walkthrough of ABN sole trader tax in Australia, from the tax-free threshold and the 2026-27 rate cut to PAYG instalments, GST registration and the records the ATO expects you to keep.
Country guides
Self-Employed Tax in Switzerland 2026: The Complete Guide
A practical 2026 guide to how the self-employed are taxed in Switzerland, covering three-tier income tax, AHV social contributions and the CHF 100,000 VAT threshold.
Country guides
Self-Employed Tax in Portugal 2026: The Complete Guide
A clear 2026 guide to self-employed tax in Portugal: recibos verdes, the simplified regime coefficients, IRS bands, 21.4% Social Security, first-year relief and the IFICI regime, with a full worked example.
Country guides
Self-Employed Tax in Ireland 2026: The Complete Sole Trader Guide
A plain-English guide to how sole traders pay income tax, USC and PRSI in Ireland for the 2026 tax year, with a worked example and the Form 11 deadlines.
Country guides
Self-Employed Tax in Canada 2026: A Complete Guide
A plain-English 2026 guide to how sole proprietors in Canada are taxed, covering income tax brackets, CPP contributions, the $30,000 GST/HST threshold and a full worked example.
Country guides
Self-Employed Tax in Belgium 2026: A Complete Guide for Indépendants
A practical 2026 guide to how much income tax, social security and VAT a self-employed indépendant actually pays in Belgium, with the current rate bands and a full worked example.
Country guides
Self-Employed Tax in Australia 2026: The Sole Trader Guide
A plain-English 2025-26 guide to how Australian sole traders are taxed, covering income tax bands, the Medicare levy, GST registration and PAYG instalments.
Country guides
Self-Employed Tax in the USA 2026: Sole Proprietor & LLC Explained
A clear guide to how sole proprietors and single-member LLCs are taxed in the United States, covering the 15.3% self-employment tax, federal brackets, and the QBI deduction.
Country guides
Self-Employed Tax in the UK 2026: The Sole Trader Guide
Everything a UK sole trader needs to know about tax in 2025/26, from income tax bands and the personal allowance to Class 4 National Insurance and Self Assessment.
Country guides
Self-Employed Tax in Spain 2026: The Autónomo Guide
Being an autónomo in Spain means juggling two separate systems: progressive IRPF income tax and the RETA social-security contributions that are now tied to your real earnings. Here is how both work in 2026, plus the tarifa plana that makes year one cheap.
Country guides
Self-Employed Tax in Italy 2026: The Complete Forfettario Guide
A plain-English walkthrough of Italy's forfettario flat-rate tax for freelancers and sole traders in 2026, including the 5% starter rate, ATECO coefficients, and INPS.
Country guides
Self-Employed Tax in Germany 2026: Freiberufler vs Gewerbe
The single most important decision for a German self-employed person is whether the tax office classifies you as a Freiberufler or a Gewerbe. It changes your paperwork, your trade tax bill and your cash flow. Here is how both work in 2026.
Country guides