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Brazil · 2026 Test Year 10 min read

Brazil 2026: The CBS/IBS Test Year and What to Do Right Now

2026 is the dry-run year. Every Brazilian-resident invoice carries CBS at 0.9% and IBS at 0.1%, but no tax is collected if you meet the ancillary obligations. The four-month penalty window, the new e-invoice fields, what 2027 turns on, and the registration runway for foreign SaaS sellers.

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VAT FAQ · Rates 8 min read

What VAT Rate Should I Charge?

A four-step method for picking the right rate, plus the difference between standard, reduced, zero, exempt, and out-of-scope. Includes a quick lookup of standard rates for the countries SaaS sellers hit first.

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VAT FAQ · Registration 9 min read

What Happens If I Forgot to Register for VAT?

Back-tax, interest, penalties, and voluntary disclosure paths in the EU, UK, Australia, Canada, and beyond. The math on disclosing voluntarily versus waiting for an audit, and a step-by-step path back to compliance.

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VAT FAQ · Registration 8 min read

What Is a VAT Number, and How Do I Get One?

VAT number formats by country, when you actually need one, and the registration steps for the EU OSS, UK, Australia, Canada, Japan, UAE, and others. Includes the mistakes to avoid (hello, "buy a VAT number" services).

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US Sellers 10 min read

US SaaS Selling Abroad: B2B vs B2C for VAT and GST

For a US-incorporated SaaS company, the buyer's tax status decides whether you register, what you charge, and what the invoice says. The operational playbook by jurisdiction, with the per-country reverse charge rules, the registration thresholds, and the mistakes US sellers make most often.

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12 min read

US SaaS Companies: A Global Guide to VAT/GST on B2C Sales

Over 60 countries now require foreign SaaS companies to collect VAT/GST on B2C sales. This guide covers registration thresholds, rates, and filing requirements in the EU, UK, Australia, Canada, Japan, Singapore, India, and more — with a practical framework for prioritizing compliance.

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10 min read

Global VAT/GST Rate Changes in 2025-2026

Estonia, Romania, Indonesia, Philippines, Brazil, Nigeria — dozens of countries changed VAT/GST rates or introduced new digital services tax rules in 2025-2026. A comprehensive tracker with effective dates, rates, and what it means for your tax engine.

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10 min read

How to Validate EU VAT Numbers with the VIES API

VAT number validation is a substantive requirement for the reverse charge and zero-rating. This guide covers the VIES REST API with Python and JavaScript code examples, common pitfalls, and best practices for reliable validation.

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