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

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 · 244 jurisdictions

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NameDomainJurisdictionStatus
Alabama Sales Tax

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

VAT / GSTAlabamaSource-cited draft

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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

Mexico Transfer Pricing

Whenever asked about Mexico transfer pricing rules, documentation requ…

Transfer PricingMexicoSource-cited draft
AU Fbt

Whenever asked about Australian Fringe Benefits Tax -- identifying fri…

—AustraliaSource-cited draft
NV Sales Tax

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

VAT / GSTNevadaSource-cited draft
Equatorial Guinea Personal Income Tax

Source-cited draft: personal income tax for Equatorial Guinea (tax yea…

Income TaxEquatorial GuineaSource-cited draft
Curacao Corporate Income Tax

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

Income TaxCuraçaoSource-cited draft
Equatorial Guinea Company Formation & Entity Choice

Source-cited draft: company formation & entity choice for Equatorial G…

Company FormationEquatorial GuineaSource-cited draft
MA Corporate Excise—MassachusettsSource-cited draft
Algeria Social Security / Social Insurance Contributions (CNAS / CASNOS)

Whenever asked about Algeria social security / social insurance contri…

PayrollAlgeriaSource-cited draft
NL Individual Return

Whenever asked about Newfoundland and Labrador provincial individual i…

Income TaxCanadaSource-cited draft
Kazakhstan VAT

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

VAT / GSTKazakhstanSource-cited draft
Liberia VAT / GST

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

VAT / GSTLiberiaSource-cited draft
Suriname Personal Income Tax

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

Income TaxSurinameSource-cited draft
OH Income Tax

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

Income TaxOhioSource-cited draft
The Burden of Proof in Tax Cases

FFP CONSULT LTD

Income TaxKenyaSource-cited draft
New York Sales Tax

Whenever asked about New York sales and use tax, NYS DTF filings, NYC …

VAT / GSTNew YorkSource-cited draft
South Sudan VAT / GST

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

VAT / GSTSouth SudanSource-cited draft
Albania VAT

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

VAT / GSTAlbaniaSource-cited draft
BE Capital Gains

Belgium capital gains: generally exempt for private investors on share…

Income TaxBelgiumSource-cited draft
Djibouti VAT / GST

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

VAT / GSTDjiboutiSource-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
Australia Tax Optimization

When advising on LEGAL tax minimization strategies for Australian taxp…

Tax OptimizationAustraliaSource-cited draft
Djibouti Tax Overview

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

Income TaxDjiboutiSource-cited draft
Bhutan Personal Income Tax

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

Income TaxBhutanSource-cited draft
Lesotho Tax Overview

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

Income TaxLesothoSource-cited draft
San Marino Tax Overview

Source-cited draft: tax overview for San Marino (tax year 2025) — rate…

Income TaxSan MarinoSource-cited draft
Slovakia Pit

Whenever asked to prepare, review, or classify transactions for Slovak…

Income TaxSlovakiaSource-cited draft
Angola Corporate Income Tax

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

Income TaxAngolaSource-cited draft
Florida Transient Rental Tax (Tourist Development) — by County

Florida local-option transient rental (tourist development) tax rates …

VAT / GSTFloridaAttested by another accountant
Sierra Leone VAT / GST

Source-cited draft: vat / gst for Sierra Leone (tax year 2025) — rates…

VAT / GSTSierra LeoneSource-cited draft
US State Formation Matrix

Tier 2 US federal-level reference skill providing the 50-state at-a-gl…

Company FormationUnited StatesSource-cited draft
RU Income Tax

Whenever asked about Russian personal income tax (НДФЛ / nalog na dokh…

Income TaxRussiaSource-cited draft
UA Financial Statements

Whenever asked about Ukrainian financial statements and financial repo…

Financial StatementsUkraineSource-cited draft
Djibouti Corporate Income Tax

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

Income TaxDjiboutiSource-cited draft
Somalia Corporate Income Tax

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

Income TaxSomaliaSource-cited draft
Slovenia Payroll

Whenever asked about Slovenia payroll processing for employed persons.…

PayrollSloveniaSource-cited draft
Botswana Payroll & Social Contributions

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

PayrollBotswanaSource-cited draft
DK Capital Gains

Denmark capital gains tax: 27%/42% on share gains, progression thresho…

Income TaxDenmarkSource-cited draft
Suriname Payroll & Social Contributions

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

PayrollSurinameSource-cited draft
France Payroll

Whenever asked about French payroll processing for employees. Trigger …

PayrollFranceSource-cited draft
Ghana Company Formation & Entity Choice

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

Company FormationGhanaSource-cited draft
San Marino Payroll & Social Contributions

Source-cited draft: payroll & social contributions for San Marino (tax…

PayrollSan MarinoSource-cited draft
US Nft Tax

US federal tax treatment of NFTs (non-fungible tokens) — property clas…

Crypto TaxUnited StatesSource-cited draft
Digital Services Tax Matrix

Whenever a digital services provider asks about country-level Digital …

Cross-BorderGLOBALSource-cited draft
Seychelles Tax Overview

Source-cited draft: tax overview for Seychelles (tax year 2025) — rate…

Income TaxSeychellesSource-cited draft
Guinea-Bissau Personal Income Tax

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

Income TaxGuinea-BissauSource-cited draft
Eritrea Tax Overview

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

Income TaxEritreaSource-cited draft
Washington Sales Tax

Whenever asked about Washington State sales and use tax, WA DOR filing…

VAT / GSTWashingtonSource-cited draft
ID Bookkeeping

Whenever asked about Indonesian bookkeeping or transaction classificat…

BookkeepingIndonesiaAttested by another accountant
Bahamas Personal Income Tax

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

Income TaxBahamasSource-cited draft

United Kingdom

27 Guides · Reviewed by: James Power

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