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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
Trinidad and Tobago Personal Income Tax

Source-cited draft: personal income tax for Trinidad and Tobago (tax y…

Income TaxTrinidad and TobagoSource-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

Qatar Corporate Income Tax

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

Income TaxQatarSource-cited draft
Chad Company Formation & Entity Choice

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

Company FormationChadSource-cited draft
Isle of Man Company Formation & Entity Choice

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

Company FormationIMSource-cited draft
AR Sales Tax

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

VAT / GSTArkansasSource-cited draft
Slovenia Corporate Income Tax

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

Income TaxSloveniaSource-cited draft
Senegal VAT

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

VAT / GSTSenegalSource-cited draft
Senegal Company Formation & Entity Choice

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

Company FormationSenegalSource-cited draft
FL Corporate Income TaxIncome TaxFloridaAttested by another accountant
Sri Lanka Income Tax

Whenever asked about Sri Lanka personal income tax for resident indivi…

Income TaxSri LankaAttested by another accountant
Slovakia Payroll & Social Contributions

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

PayrollSlovakiaSource-cited draft
NZ Capital Gains

New Zealand capital gains: no general CGT, but bright-line test on res…

Income TaxNew ZealandSource-cited draft
Honduras Personal Income Tax (ISR) — Individuals

Whenever asked about Honduras personal income tax (ISR — Impuesto Sobr…

Income TaxHondurasSource-cited draft
Thailand Tax Overview

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

Income TaxThailandSource-cited draft
Central African Republic Tax Overview

Source-cited draft: tax overview for Central African Republic (tax yea…

Income TaxCentral African RepublicSource-cited draft
US Fbar And FATCA 8938

Tier 2 US federal content skill for the dual foreign financial account…

Cross-BorderUnited StatesAttested by another accountant
Slovenia Company Formation & Entity Choice

Source-cited draft: company formation & entity choice for Slovenia (ta…

Company FormationSloveniaSource-cited draft
Slovakia Company Formation & Entity Choice

Source-cited draft: company formation & entity choice for Slovakia (ta…

Company FormationSlovakiaSource-cited draft
Mexico Einvoice

Whenever asked about Mexico e-invoicing, CFDI (Comprobante Fiscal Digi…

E-InvoicingMexicoSource-cited draft
Ecuador Corporate Income Tax

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

Income TaxEcuadorSource-cited draft
Senegal Tax Overview

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

Income TaxSenegalSource-cited draft
Slovakia Tax Overview

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

Income TaxSlovakiaSource-cited draft
Deadline Engine

Intelligence skill that generates a personalised filing calendar based…

—GLOBALSource-cited draft
CN Return Assembly

本技能用于汇总组装中国税务申报与年度汇算清缴的最终复核包。 触发短语包括:"中国税务报表汇总"、"年度汇算清缴"、"企业所得税年度申报"、 …

Income TaxChinaSource-cited draft
Belarus Payroll

Whenever asked about Belarus payroll processing for employed persons. …

PayrollBelarusSource-cited draft
Turkey Company Formation & Entity Choice

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

Company FormationTurkeySource-cited draft
Thailand Company Formation & Entity Choice

Source-cited draft: company formation & entity choice for Thailand (ta…

Company FormationThailandSource-cited draft
Mongolia Company Formation & Entity Choice

Source-cited draft: company formation & entity choice for Mongolia (ta…

Company FormationMongoliaSource-cited draft
Kazakhstan Company Formation & Entity Choice

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

Company FormationKazakhstanSource-cited draft
MA Financial Statements

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

Financial StatementsMoroccoSource-cited draft
VAT Place Of Supply Master

The definitive place-of-supply reference for cross-border VAT on servi…

Cross-BorderInternational / OtherSource-cited draft
DE Capital Gains

For any German capital gains tax question. Trigger on: "Abgeltungsteue…

Income TaxGermanySource-cited draft
MA Crypto Tax

Whenever asked about the taxation and legal status of cryptocurrency /…

Crypto TaxMoroccoSource-cited draft
NO Income Tax

Whenever asked about Norwegian income tax for self-employed individual…

Income TaxNorwaySource-cited draft
Dominican Republic Payroll

Whenever asked about Dominican Republic payroll processing for employe…

PayrollDominican RepublicSource-cited draft
Andorra Tax Overview

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

Income TaxAndorraSource-cited draft
Turkey Tax Overview

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

Income TaxTurkeySource-cited draft
MA Einvoice

Whenever asked about Morocco e-invoicing, the DGI's mandatory electron…

E-InvoicingMoroccoSource-cited draft
KY Sales Tax

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

VAT / GSTKentuckySource-cited draft
Czech Republic Corporate Income Tax

Source-cited draft: corporate income tax for Czech Republic (tax year …

Income TaxCzech RepublicSource-cited draft
Canada Transfer Pricing

Whenever asked about Canada transfer pricing rules, documentation requ…

Transfer PricingCanadaAttested by another accountant
Turkey Corporate Income Tax

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

Income TaxTurkeySource-cited draft
Colombia Tax Overview

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

Income TaxColombiaSource-cited draft
WI Sales Tax

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

VAT / GSTWisconsinSource-cited draft
Thailand Corporate Income Tax

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

Income TaxThailandSource-cited draft
Venezuela Tax Optimization

Whenever asked about reducing tax in Venezuela, tax planning, saving t…

Tax OptimizationVenezuelaAttested by another accountant
Jamaica Corporate Income Tax

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

Income TaxJamaicaSource-cited draft
MI Sales Tax

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

VAT / GSTMichiganSource-cited draft
DC Income Tax

District of Columbia Individual Income Tax Return (Form D-40) for sole…

Income TaxDistrict of ColumbiaSource-cited draft
Turkey Payroll & Social Contributions

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

PayrollTurkeySource-cited draft

United Kingdom

27 Guides · Reviewed by: James Power

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