Insights & guides
OSS
Practical guides on virtual CFO strategy, accounting, IFRS reporting, forecasting, international tax, VAT, digital marketing, technology and medical billing for business owners in the USA, UK, Canada and Europe. New articles every day.
EU VAT One-Stop-Shop (OSS): Who Needs It?
How the EU VAT One-Stop-Shop (OSS) and Import OSS (IOSS) work, the €10,000 threshold, and how UK, US and Canadian sellers can use them.
VAT, GST/HST & US Sales Tax Guide for Online Sellers
When do ecommerce and digital businesses need to register for UK VAT, EU VAT (OSS), Canadian GST/HST or US state sales tax? A plain-English guide for 2026.
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