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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.

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

The open Tax Guides

Open Tax Guides for the AI you already use

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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.

The Guides are open. The trust layer shows who reviewed them.

1752 Guides · 61 matching · 241 jurisdictions

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Source-cited draft
— researched and cited, not yet reviewed by a licensed practitioner.
Accountant-reviewed
— reviewed as general reference material by a named licensed practitioner.
Needs update
— flagged for review.
Deprecated
— do not use for current work.

GLOBAL · 61 Guides

Licensed in this market? Review these Guides as an Open Accountants Partner and get credited on the ones you review.

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NameDomainJurisdictionStatus
Free Zones Sez Matrix

Whenever a company asks about establishing or trading through a free z…

Cross-BorderGLOBALSource-cited draft

Showing 51–61 of 61 Guides

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1752 Guides across 241 jurisdictions. You do not need to review an entire country — choose a Guide within your expertise and get credited as an Open Accountants Partner on the ones you review.

GLOBAL

61 Guides

Awaiting review.

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Review a Guide in this jurisdiction and get credited as an Open Accountants Partner on the ones you review.

Guides awaiting reviewBecome a Partner
Global Marketplaces Banking Fees

Pattern library for online marketplaces (Etsy, eBay, Amazon Seller, Al…

—GLOBALSource-cited draft
Global SAAS Vendors

Deterministic lookup table of 100+ common SaaS/tech vendors that appea…

—GLOBALSource-cited draft
Inheritance Estate Gift Matrix

Whenever an executor, donor, donee, or beneficiary asks about inherita…

Cross-BorderGLOBALSource-cited draft
Global Travel Expenses

Travel expense classification patterns for freelancers and small busin…

—GLOBALSource-cited draft
Global Vehicle Expenses

Vehicle expense deduction rules across the top 10 jurisdictions for fr…

—GLOBALSource-cited draft
Global Home Office

Home office expense patterns and deduction rules across the top 10 jur…

—GLOBALSource-cited draft
Workflow Base

Universal workflow base for all tax and compliance skills worldwide. C…

Income TaxGLOBALSource-cited draft
VAT Workflow Base

Tier 1 workflow base for VAT return preparation skills. Contains the u…

VAT / GSTGLOBALSource-cited draft
Cross Border Tax Router

Entry point for the OpenAccountants cross-border / international perso…

Cross-BorderGLOBALSource-cited draft
Cross Border Tax Workflow Base

Foundation workflow base for cross-border / international personal-tax…

Cross-BorderGLOBALSource-cited draft