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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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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
GA Net Worth Tax

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

Income TaxGeorgia (US)Source-cited draft

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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

IA Sales Tax

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

VAT / GSTIowaSource-cited draft
IN PayrollPayrollIndianaSource-cited draft
Mozambique VAT

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

VAT / GSTMozambiqueSource-cited draft
Benin Corporate Income Tax

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

Income TaxBeninSource-cited draft
Afghanistan Corporate Income Tax

Source-cited draft: corporate income tax for Afghanistan (tax year 202…

Income TaxAfghanistanSource-cited draft
OH Income Tax

Triggers when the taxpayer is an Ohio resident sole proprietor or sing…

Income TaxOhioSource-cited draft
UA Einvoice

Whenever asked about Ukrainian electronic invoicing and digital tax re…

E-InvoicingUkraineSource-cited draft
CO Sales Tax

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

VAT / GSTColoradoSource-cited draft
MO Sales Tax

Whenever asked about Missouri sales and use tax. Trigger on phrases li…

VAT / GSTMissouriSource-cited draft
DR Congo Personal Income Tax

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

Income TaxDR CongoSource-cited draft
Monaco Company Formation & Entity Choice

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

Company FormationMonacoSource-cited draft
Cayman Islands Payroll & Social Contributions

Source-cited draft: payroll & social contributions for Cayman Islands …

PayrollCayman IslandsSource-cited draft
Cape Verde Payroll & Social Contributions

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

PayrollCape VerdeSource-cited draft
Myanmar Ct

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

—MyanmarSource-cited draft
Georgia Payroll

Whenever asked about Georgia (the country / Republic of Georgia — Saka…

PayrollGeorgiaSource-cited draft
GA Estimated Tax Depth

Tier 2 Georgia content skill for individual and corporate estimated ta…

Income TaxGeorgia (US)Source-cited draft
Bhutan Payroll & Social Contributions

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

PayrollBhutanSource-cited draft
GR Efka

Whenever asked about Greek EFKA (e-EFKA / Ενιαίος Φορέας Κοινωνικής Ασ…

PayrollGreeceSource-cited draft
Fiji Payroll & Social Contributions

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

PayrollFijiSource-cited draft
DE Social Contributions

Whenever asked about German social insurance contributions (Sozialvers…

PayrollGermanySource-cited draft
Slovenia Income Tax -- Self-Employed and Individuals

Whenever asked about Slovenia (Slovenija) personal income tax for self…

Income TaxSloveniaSource-cited draft
Bhutan Company Formation & Entity Choice

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

Company FormationBhutanSource-cited draft
Iceland Tax Optimization

Whenever asked about reducing tax in Iceland, tax planning, or legal s…

Tax OptimizationIcelandSource-cited draft
Peru Igv

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

VAT / GSTPeruAccountant-reviewed
Cuba Company Formation & Entity Choice

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

Company FormationCubaSource-cited draft
US Crypto Reporting

US federal cryptocurrency REPORTING & disclosure — Form 1040 digital-a…

Crypto TaxUS FederalAccountant-reviewed
Botswana VAT / GST

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

VAT / GSTBotswanaSource-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
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
BR Income Tax

Use esta skill sempre que for solicitado sobre o imposto de renda bras…

Income TaxBrazilAccountant-reviewed
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
Australia Bookkeeping

Whenever asked about Australian bookkeeping for sole traders, partners…

BookkeepingAustraliaSource-cited draft

Dominican Republic

22 Guides · Partner: Miguel Lantigua

Guides awaiting reviewBecome a Partner