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.

Read more →
11 min read

ViDA Explained: How the EU's VAT in the Digital Age Package Affects Your Business

The EU's ViDA package brings mandatory e-invoicing for cross-border B2B, deemed-supplier rules for accommodation and transport platforms, and a single VAT registration framework. Here's the three-pillar breakdown and the 2027-2035 implementation timeline.

Read more →
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.

Read more →
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.

Read more →