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© 2026 OpenAccountants. Open tax rules, reviewed by accountants.

OpenAccountants publishes open, source-cited tax knowledge for use by people, software and AI. Automated outputs are drafts and do not create a professional engagement. Obtain qualified advice before filing, paying or taking a material tax position.

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Browse the open Tax Guides that power OpenAccountants workflows. Each Guide is designed to be cited, inspectable, and usable by AI systems (as a machine-readable Skill). Some are source-cited drafts. Some have named accountant review. All are open Tax Guides.

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1798 Guides · 2 matching · 244 jurisdictions

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EU-27 · 2 Guides

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EU Directives Cross Border

Key EU directives governing cross-border corporate taxation within the…

Cross-BorderEU-27Source-cited draft

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1798 Guides across 244 jurisdictions. You do not need to cover an entire country. Publish a Guide within your expertise, under your name, and colleagues attest to the ones they stand behind.

EU-27

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CBAM Carbon Border Adjustment

Whenever an EU importer (declarant), an indirect customs representativ…

Cross-BorderEU-27Source-cited draft