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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 · 1548 matching · 241 jurisdictions

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— researched and cited, not yet reviewed by a licensed practitioner.
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— reviewed as general reference material by a named licensed practitioner.
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— flagged for review.
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— do not use for current work.
NameDomainJurisdictionStatus
Botswana VAT / GST

Source-cited draft: vat / gst for Botswana (tax year 2025) — rates, th…

VAT / GSTBotswanaSource-cited draft

Showing 451–500 of 1548 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

US Federal

58 Guides · Awaiting review

Spain

22 Guides · Awaiting review

Australia

20 Guides · Awaiting review

Canada

35 Guides · Partner: Edgar Lautsyus

Belize Personal Income Tax

Source-cited draft: personal income tax for Belize (tax year 2025) — r…

Income TaxBelizeSource-cited draft
Belize Payroll & Social Contributions

Source-cited draft: payroll & social contributions for Belize (tax yea…

PayrollBelizeSource-cited draft
BR Return Assembly

Skill orquestrador final que monta o pacote completo de declarações do…

Income TaxBrazilSource-cited draft
MN PayrollPayrollMinnesotaSource-cited draft
Luxembourg VAT Return

Whenever asked to prepare, review, or classify transactions for a Luxe…

VAT / GSTLuxembourgSource-cited draft
MD Income Tax

Whenever asked about Maryland individual income tax. Trigger on phrase…

Income TaxMarylandSource-cited draft
DR Congo VAT / GST

Source-cited draft: vat / gst for DR Congo (tax year 2025) — rates, th…

VAT / GSTDR CongoSource-cited draft
MA Corporate Excise—MassachusettsSource-cited draft
Zimbabwe VAT

Whenever asked to prepare, review, or classify transactions for a Zimb…

VAT / GSTZimbabweSource-cited draft
CA Formation

Tier 2 California content skill for entity formation covering tax year…

Company FormationCaliforniaSource-cited draft
Malaysia Sst

Whenever asked to prepare, review, or classify transactions for a Mala…

VAT / GSTMalaysiaSource-cited draft
Australia Financial Statements

When preparing, reviewing, or advising on annual financial statements …

Financial StatementsAustraliaSource-cited draft
Curacao Personal Income Tax

Source-cited draft: personal income tax for Curacao (tax year 2025) — …

Income TaxCuraçaoSource-cited draft
Colorado Sales Tax

Whenever asked about Colorado sales and use tax, home-rule cities, CDO…

VAT / GSTColoradoSource-cited draft
Cape Verde Corporate Income Tax

Source-cited draft: corporate income tax for Cape Verde (tax year 2025…

Income TaxCape VerdeSource-cited draft
US State Bonus Depreciation Conformity Matrix

Tier 2 US federal-level reference skill providing the 50-state matrix …

—US FederalSource-cited draft
France Payroll

Whenever asked about French payroll processing for employees. Trigger …

PayrollFranceSource-cited draft
US Tax Residency

US tax residency for non-US-citizens: substantial presence test, green…

Cross-BorderUS FederalSource-cited draft
North Macedonia Personal Income Tax -- Individuals & Self-Employed

Whenever asked about North Macedonia (Republic of North Macedonia) per…

Income TaxNorth MacedoniaSource-cited draft
Trinidad VAT

Whenever asked to prepare, review, or create a Trinidad and Tobago VAT…

VAT / GSTTrinidad and TobagoSource-cited draft
Bahamas Company Formation & Entity Choice

Source-cited draft: company formation & entity choice for Bahamas (tax…

Company FormationBahamasSource-cited draft
CA Tax Residency

Canada tax residency: factual resident, deemed resident (183-day sojou…

Cross-BorderCanadaSource-cited draft
DR Congo Tax Overview

Source-cited draft: tax overview for DR Congo (tax year 2025) — rates,…

Income TaxDR CongoSource-cited draft
Costa Rica Income Tax -- Self-Employed

Whenever asked about Costa Rica income tax for self-employed individua…

Income TaxCosta RicaSource-cited draft
Italy Crypto Tax

Whenever asked about Italy cryptocurrency or digital asset taxation. T…

Crypto TaxItalySource-cited draft
Central African Republic Personal Income Tax

Source-cited draft: personal income tax for Central African Republic (…

Income TaxCentral African RepublicSource-cited draft
Republic of Congo VAT / GST

Source-cited draft: vat / gst for Republic of Congo (tax year 2025) — …

VAT / GSTRepublic of CongoSource-cited draft
WV Sales Tax

Whenever asked about West Virginia sales tax, WV use tax, West Virgini…

VAT / GSTWest VirginiaSource-cited draft
Australia Bookkeeping

Whenever asked about Australian bookkeeping for sole traders, partners…

BookkeepingAustraliaSource-cited draft
DR Congo Payroll & Social Contributions

Source-cited draft: payroll & social contributions for DR Congo (tax y…

PayrollDR CongoSource-cited draft
Bolivia Payroll

Whenever asked about Bolivia payroll processing for employed (dependen…

PayrollBoliviaSource-cited draft
Central African Republic Corporate Income Tax

Source-cited draft: corporate income tax for Central African Republic …

Income TaxCentral African RepublicSource-cited draft
Estonia Personal Income Tax -- Self-Employed (FIE) & Individuals

Whenever asked about Estonia personal income tax for self-employed ind…

Income TaxEstoniaSource-cited draft
Republic of Congo Personal Income Tax

Source-cited draft: personal income tax for Republic of Congo (tax yea…

Income TaxRepublic of CongoSource-cited draft
Saudi Einvoice

Whenever asked about Saudi Arabia e-invoicing, ZATCA FATOORA platform,…

E-InvoicingSaudi ArabiaSource-cited draft
Republic of Congo Company Formation & Entity Choice

Source-cited draft: company formation & entity choice for Republic of …

Company FormationRepublic of CongoSource-cited draft
MA Financial Statements

Whenever asked about financial statements, statutory accounts, or fina…

Financial StatementsMoroccoSource-cited draft
AZ Sales Tax

Whenever asked about Arizona sales tax, Arizona Transaction Privilege …

VAT / GSTArizonaSource-cited draft
Singapore Crypto Tax

Whenever asked about Singapore cryptocurrency or digital asset taxatio…

Crypto TaxSingaporeSource-cited draft
Cuba Tax Overview

Source-cited draft: tax overview for Cuba (tax year 2025) — rates, thr…

Income TaxCubaSource-cited draft
Republic of Congo Corporate Income Tax

Source-cited draft: corporate income tax for Republic of Congo (tax ye…

Income TaxRepublic of CongoSource-cited draft
Azerbaijan VAT

Whenever asked to prepare, review, or classify transactions for an Aze…

VAT / GSTAzerbaijanSource-cited draft
Belarus Social Insurance Contributions (FSZN) + Payroll PIT

Whenever asked about Belarus social insurance contributions (FSZN / ФС…

PayrollBelarusSource-cited draft
Republic of Congo Payroll & Social Contributions

Source-cited draft: payroll & social contributions for Republic of Con…

PayrollRepublic of CongoSource-cited draft
Cuba Corporate Income Tax

Source-cited draft: corporate income tax for Cuba (tax year 2025) — ra…

Income TaxCubaSource-cited draft
WA Sales Tax

Washington State Sales Tax for self-employed individuals selling taxab…

VAT / GSTWashingtonSource-cited draft
Non EU Export Services

Whenever a freelancer or small business sells services to a client loc…

VAT / GSTGLOBALSource-cited draft
CN Withholding

当用户咨询、计算、审核或申报中国预提所得税(源泉扣缴)相关事项时,必须始终先阅读本技能文档。触发关键词包括:"中国预提所得税"、"非居民企业…

Cross-BorderChinaSource-cited draft
US Section 1031 Like Kind Exchange

Tier 2 US federal content skill for IRC §1031 like-kind exchange of re…

—US FederalSource-cited draft

Dominican Republic

22 Guides · Partner: Miguel Lantigua

Guides awaiting reviewBecome a Partner