BizTaxCalc Blog
Guides and comparisons on business and freelance tax across 13 countries — written to be genuinely useful, backed by official sources.
How-to
Self-Employment Tax in the USA Explained (2026)
A clear, worked-through guide to US self-employment tax in 2026: the 15.3% rate, the 92.35% net-earnings base, the Social Security cap, the deductible half, and how an S-corp election can lower the bill.
How-to
What Is a Profitability Coefficient? Flat-Rate Tax Explained
Flat-rate tax regimes do not tax your full turnover. They apply a profitability coefficient to estimate your profit, and that single percentage decides how much tax you pay. Here is how it works.
How-to
How to Reduce Your Freelance Tax Bill Legally (2026)
A practical, strictly legal guide to lowering your freelance tax bill in 2026 through smart regime choice, legitimate deductions, retirement contributions, business structure, and income timing.
How-to
How Much Should You Set Aside for Taxes as a Freelancer? (2026)
Most freelancers under-save for taxes and get a nasty surprise at filing time. Here is a country-by-country breakdown of how much to set aside in 2026, plus a simple system to never fall short again.
How-to
How Dividends Are Taxed by Country in 2026
Dividend tax rules differ enormously between countries, from simple flat rates to tiered and marginal systems. Here is how dividends are taxed across major economies in 2026, with a clear comparison table.
How-to
Best Countries for Digital Nomads: The Tax Edition (2026)
A tax-focused tour of the most attractive countries for location-independent freelancers in 2026, from Portugal and Switzerland to territorial-tax jurisdictions, with a comparison table and the residency rules that actually determine what you pay.