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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.

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.

1810 Guides · 1595 matching · 244 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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— do not use for current work.
NameDomainJurisdictionStatus
Honduras Isv

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

—HondurasSource-cited draft
Fiji Payroll & Social Contributions

Source-cited draft: payroll & social contributions for Fiji (tax year …

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1810 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.

GLOBAL

61 Guides · No accountant yet

United States

60 Guides · No accountant yet

Australia

23 Guides · No accountant yet

Spain

22 Guides · No accountant yet

Canada

35 Guides · Reviewed by: Edgar Lautsyus

Payroll
Fiji
Source-cited draft
ES Corporate Tax

Whenever asked about Spanish corporate income tax (Impuesto sobre Soci…

Income TaxSpainSource-cited draft
Cuba Company Formation & Entity Choice

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

Company FormationCubaSource-cited draft
Mozambique VAT

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

VAT / GSTMozambiqueSource-cited draft
Bhutan Company Formation & Entity Choice

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

Company FormationBhutanSource-cited draft
Uruguay Social Contributions (BPS) Skill v0.1 (Tier 2 — research-verified, reviewer sign-off pending)

Whenever asked about Uruguay social-security (BPS) contributions for e…

PayrollUruguaySource-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
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
MN PayrollPayrollMinnesotaSource-cited draft
Curacao Personal Income Tax

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

Income TaxCuraçaoSource-cited draft
NL Income Tax

Whenever asked about Netherlands income tax for self-employed individu…

Income TaxNetherlandsSource-cited draft
Cuba Personal Income Tax

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

Income TaxCubaSource-cited draft
Zimbabwe VAT

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

VAT / GSTZimbabweSource-cited draft
US State Bonus Depreciation Conformity Matrix

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

—United StatesSource-cited draft
Eswatini Corporate Income Tax

Source-cited draft: corporate income tax for Eswatini (tax year 2025) …

Income TaxEswatiniSource-cited draft
Cape Verde Corporate Income Tax

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

Income TaxCape VerdeSource-cited draft
Monaco VAT

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

VAT / GSTMonacoSource-cited draft
Colorado Sales Tax

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

VAT / GSTColoradoSource-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
United Arab Emirates Payroll & Social Contributions

Source-cited draft: payroll & social contributions for United Arab Emi…

PayrollUnited Arab EmiratesSource-cited draft
Ecuador Payroll

Whenever asked about Ecuador payroll processing for employed persons (…

PayrollEcuadorSource-cited draft
Central African Republic Personal Income Tax

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

Income TaxCentral African RepublicSource-cited draft
Timor-Leste Personal Income Tax

Source-cited draft: personal income tax for Timor-Leste (tax year 2025…

Income TaxTimor-LesteSource-cited draft
WV Sales Tax

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

VAT / GSTWest VirginiaSource-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
DR Congo Payroll & Social Contributions

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

PayrollDR CongoSource-cited draft
UA Einvoice

Whenever asked about Ukrainian electronic invoicing and digital tax re…

E-InvoicingUkraineSource-cited draft
Central African Republic Corporate Income Tax

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

Income TaxCentral African RepublicSource-cited draft
Illinois Sales Tax

Whenever asked about Illinois sales and use tax, Retailers' Occupation…

VAT / GSTIllinoisSource-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
AZ Sales Tax

Whenever asked about Arizona sales tax, Arizona Transaction Privilege …

VAT / GSTArizonaSource-cited draft
Cuba Tax Overview

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

Income TaxCubaSource-cited draft
Estonia Social Security Contributions (Social Tax, Unemployment Insurance, II-Pillar Pension)

Whenever asked about Estonian social security contributions, social ta…

PayrollEstoniaSource-cited draft
KY Income Tax

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

Income TaxKentuckySource-cited draft
DR Congo Tax Overview

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

Income TaxDR CongoSource-cited draft
Lithuania VAT Return

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

VAT / GSTLithuaniaSource-cited draft
Japan Tax Optimization

When advising on LEGAL tax minimization strategies for Japanese taxpay…

Tax OptimizationJapanSource-cited draft
WA Sales Tax

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

VAT / GSTWashingtonSource-cited draft
Cuba Corporate Income Tax

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

Income TaxCubaSource-cited draft
RU Tax Optimization

Whenever asked about legal tax optimization or tax planning for a self…

Tax OptimizationRussiaSource-cited draft
Spain Formation

Whenever asked about forming, incorporating, or registering a company …

Company FormationSpainSource-cited draft
Ethiopia Payroll Skill v0.1 (Tier 2 -- Research-Verified)

Whenever asked about Ethiopia payroll processing for employed persons.…

PayrollEthiopiaSource-cited draft
GA Net Worth Tax

Tier 2 Georgia content skill for the Net Worth Tax under Form 600 Part…

Income TaxGeorgia (US)Source-cited draft
AL Sales Tax

Whenever asked about Alabama sales tax, Alabama use tax, Alabama sales…

VAT / GSTAlabamaSource-cited draft
Curacao Tax Overview

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

Income TaxCuraçaoSource-cited draft
Cape Verde Payroll & Social Contributions

Source-cited draft: payroll & social contributions for Cape Verde (tax…

PayrollCape VerdeSource-cited draft

United Kingdom

27 Guides · Reviewed by: James Power

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