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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 · 241 jurisdictions

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— researched and cited, not yet reviewed by a licensed practitioner.
Accountant-reviewed
— 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
CA Tax Residency

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

Cross-BorderCanadaSource-cited draft

Showing 501–550 of 1727 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

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
Guyana Personal Income Tax

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

Income TaxGuyanaSource-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
Republic of Congo Company Formation & Entity Choice

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

Company FormationRepublic of CongoSource-cited draft
Saudi Einvoice

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

E-InvoicingSaudi ArabiaSource-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
Sri Lanka Corporate Tax

ALWAYS read this skill before touching any Sri Lanka corporate income …

Income TaxSri LankaAccountant-reviewed
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
IL Sales Tax

Illinois Sales Tax return (Form ST-1) for self-employed individuals. C…

VAT / GSTIllinoisAccountant-reviewed
US Section 1031 Like Kind Exchange

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

—US FederalSource-cited draft
Curacao Tax Overview

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

Income TaxCuraçaoSource-cited draft
AL Sales Tax

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

VAT / GSTAlabamaSource-cited draft
NO Sales Tax States

Whenever asked about states with no sales tax, Alaska local sales tax,…

VAT / GSTUS FederalAccountant-reviewed
India Einvoice

Whenever asked about India GST e-invoicing, Invoice Registration Porta…

E-InvoicingIndiaAccountant-reviewed
Curacao Corporate Income Tax

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

Income TaxCuraçaoSource-cited draft
FR Capital Gains

French capital gains, investment income, and equity compensation tax r…

Income TaxFranceSource-cited draft
Equatorial Guinea VAT / GST

Source-cited draft: vat / gst for Equatorial Guinea (tax year 2025) — …

VAT / GSTEquatorial GuineaSource-cited draft
WI Income Tax

Whenever asked about Wisconsin individual income tax, Wisconsin Form 1…

Income TaxWisconsinSource-cited draft
Guinea-Bissau Personal Income Tax

Source-cited draft: personal income tax for Guinea-Bissau (tax year 20…

Income TaxGuinea-BissauSource-cited draft
Guinea Company Formation & Entity Choice

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

Company FormationGuineaSource-cited draft
Liberia Corporate Income Tax

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

Income TaxLiberiaSource-cited draft
NV Sales Tax

Whenever asked about Nevada sales and use tax. Trigger on phrases like…

VAT / GSTNevadaSource-cited draft
Guinea Corporate Income Tax

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

Income TaxGuineaSource-cited draft
Canada Formation

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

Company FormationCanadaAccountant-reviewed
AT Income Tax

Whenever asked about Austrian income tax (Einkommensteuer) for self-em…

Income TaxAustriaSource-cited draft
Equatorial Guinea Payroll & Social Contributions

Source-cited draft: payroll & social contributions for Equatorial Guin…

PayrollEquatorial GuineaSource-cited draft
Mexico Transfer Pricing

Whenever asked about Mexico transfer pricing rules, documentation requ…

Transfer PricingMexicoSource-cited draft
Lesotho Tax Overview

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

Income TaxLesothoSource-cited draft
Suriname Personal Income Tax

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

Income TaxSurinameSource-cited draft

Dominican Republic

22 Guides · Partner: Miguel Lantigua

Guides awaiting reviewBecome a Partner