Tax Guides

130+ expert-sourced guides covering IRS forms, international compliance, country tax systems, tax treaties, and business strategies.

Editorial tax library

Deep-dive country guides, treaty explainers & form breakdowns

52 long-form guides researched from official tax authorities.

Country tax guides

UK tax guide for founders and freelancers in 2026

A practical UK guide for people deciding how to trade, what tax rates matter first, and which filing dates become important as soon as money starts moving.

Indonesia tax guide for startups in 2026

A founder-oriented Indonesia guide focused on the 22% corporate headline, the monthly Article 25 rhythm, VAT after the 2025 changes, and the practical role of OSS and NIB.

Hong Kong tax guide for founders in 2026

A practical Hong Kong guide for founders who keep hearing the words territorial, simple and low-tax, but need to know what those labels mean once the business actually starts trading.

UAE tax guide for consultants and owner-managed businesses in 2026

A practical UAE guide for people still working from the old zero-tax narrative and trying to understand how corporate tax, VAT and natural-person business activity now fit together.

Estonia tax guide for OÜ founders in 2026

A practical Estonia guide for OÜ founders and remote owners who keep hearing that Estonia taxes distributed profits differently and want the current founder implications explained without startup folklore.

Mexico tax guide for founders and owner-managers in 2026

A practical Mexico guide for founders who need to stop treating SAT like an annual-return event and start seeing the system as a monthly operating discipline with both company and individual consequences.

Ireland tax guide for founders and small companies in 2026

A practical Ireland guide for founders who need the real distinction between trading and non-trading company income, the shape of personal tax and payroll, and the VAT thresholds that change with the business model.

Switzerland tax guide for founders and owner-managers in 2026

A practical Switzerland guide for founders who need to understand the layered tax structure, the current VAT position and why legal form still shapes the compliance story.

Netherlands tax guide for founders and freelancers in 2026

A practical Netherlands guide for founders and freelancers who need the current corporate-tax shape, the VAT landscape and the registration workflow between KVK and the Tax Administration.

Country comparisons

UK vs Ireland tax guide for consultants and small companies in 2026

A practical comparison for founders and consultants choosing between two English-speaking systems that look familiar from the outside but behave very differently once tax, payroll and VAT are mapped properly.

Hong Kong vs UAE vs Switzerland tax guide for founders in 2026

A founder-focused comparison of three jurisdictions that are regularly marketed as low-tax, simple or business-friendly, even though they solve those goals in very different ways.

UK vs Switzerland tax guide for owner-managed businesses in 2026

A practical comparison for founders choosing between a familiar high-compliance common-law system and a Swiss model that looks low-tax at a glance but is layered in ways outsiders often underestimate.

Indonesia vs Hong Kong tax guide for digital founders in 2026

A practical comparison for digital founders choosing between a monthly-compliance-heavy Southeast Asian system and a leaner territorial model that still demands careful source analysis.

Estonia vs UAE tax guide for remote founders in 2026

A practical comparison for remote founders choosing between a jurisdiction built around retained-profit logic and a jurisdiction built around modern low-tax positioning with separate rules for companies and natural persons.

Mexico vs Indonesia tax guide for operating businesses in 2026

A practical comparison for founders choosing between two large-growth markets where the real challenge is not the headline corporate rate, but how quickly the tax authority expects the business to behave like a serious reporting machine.

Netherlands vs Ireland tax guide for founders in 2026

A practical comparison for founders deciding between two EU business environments that both look structured and credible but behave very differently once registration, VAT and profit classification are mapped properly.

Forms, treaties & niche topics

Ireland business setup guide for founders in 2026

A practical Ireland setup guide for founders deciding between trading personally and forming a company, with the early Revenue and CRO steps explained in the order they really matter.

Hong Kong business setup guide for founders in 2026

A practical Hong Kong setup guide explaining the difference between business registration, company incorporation, and the first tax questions founders should ask before revenue starts flowing.

Dual-residence treaty guide for individuals in 2026

A practical treaty guide for people who look resident in two countries under domestic law and need to understand what the tie-breaker rules really do.

U.S. withholding treaty benefits guide for foreign recipients in 2026

A practical guide for foreign founders, licensors, investors and contractors trying to understand how reduced U.S. withholding rates actually get claimed.

UAE business setup guide for founders in 2026

A practical UAE setup guide for founders who need to line up licensing, operating model and the current corporate-tax framework instead of relying on outdated zero-tax assumptions.

Switzerland business setup guide for founders in 2026

A practical Switzerland setup guide for founders who need to choose the right legal form, understand the layered tax environment, and avoid mistaking Swiss efficiency for minimal planning.

UK certificate of residence guide for treaty claims in 2026

A practical guide for UK residents and companies who need to understand when a certificate of residence helps with foreign treaty claims and what it does not prove by itself.

Treaty evidence guide for remote founders in 2026

A practical treaty guide for founders and senior employees whose cross-border lives now create dual-residence questions that cannot be solved with one relocation announcement.

UK business setup guide for founders in 2026

A practical UK setup guide for founders deciding whether to trade personally or through a company and trying to understand which registrations actually matter before the first invoice goes out.

Indonesia business setup guide for founders in 2026

A practical Indonesia setup guide for founders who need to understand how OSS, the NIB and the first tax obligations fit together before the business starts behaving like a fully operating company.

UK-US treaty relief workflow guide in 2026

A practical treaty guide for U.S. residents with UK-source income who need the actual HMRC route for relief at source or repayment instead of a loose belief that the treaty rate just appears by default.

UK non-resident treaty claims guide in 2026

A practical guide for non-residents with UK-source income who need to understand the difference between having a treaty in the background and actually making a defensible relief or repayment claim.