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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 · 1548 matching · 241 jurisdictions

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CZ VAT Return

Redirect — consolidated into czech-republic-vat-return.md in this dire…

VAT / GSTCzech RepublicSource-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

Serbia Personal Income Tax -- Self-Employed & Individuals

Whenever asked about Serbia (Republic of Serbia) personal income tax f…

Income TaxSerbiaSource-cited draft
NZ Income Tax Ir3

Whenever asked about New Zealand income tax for self-employed individu…

Income TaxNew ZealandSource-cited draft
Togo Corporate Income Tax

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

Income TaxTogoSource-cited draft
DE Crypto Tax

Whenever asked about German cryptocurrency taxation. Trigger on phrase…

Crypto TaxGermanySource-cited draft
Bulgaria Personal Income Tax (ДДФЛ)

Whenever asked about Bulgaria personal income tax (данък върху доходит…

Income TaxBulgariaSource-cited draft
NO VAT Return

Redirect — consolidated into norway-mva.md in this directory.

VAT / GSTNorwaySource-cited draft
Kyrgyzstan Corporate Income Tax

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

Income TaxKyrgyzstanSource-cited draft
AU Capital Gains

For any Australian resident's capital gains tax question. Trigger on: …

Income TaxAustraliaSource-cited draft
AZ Payroll

Tier 2 Arizona content skill for employer payroll compliance covering …

PayrollArizonaSource-cited draft
AU Sole Trader Schedule

Australian sole trader business schedule (Business and Professional It…

Income TaxAustraliaSource-cited draft
Uzbekistan Personal Income Tax -- Individuals & Self-Employed

Whenever asked about Uzbekistan personal income tax (PIT) for individu…

Income TaxUzbekistanSource-cited draft
Construction Sector

Whenever a construction contractor, subcontractor, developer, or desig…

—GLOBALSource-cited draft
Monaco VAT

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

VAT / GSTMonacoSource-cited draft
Bolivia Social Security Contributions & RC-IVA — Dependent Employment

Whenever asked about Bolivia social-security (seguridad social) contri…

PayrollBoliviaSource-cited draft
Bolivia Income Tax (RC-IVA) -- Self-Employed and Individuals

Whenever asked about Bolivia personal income tax for self-employed ind…

Income TaxBoliviaSource-cited draft
Ias32 Debt Vs Equity

IFRS classification of issued financial instruments as financial liabi…

—GLOBALSource-cited draft
Wisconsin Sales Tax

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

VAT / GSTWisconsinSource-cited draft
HU VAT Return

Redirect — consolidated into hungary-vat-return.md in this directory.

VAT / GSTHungarySource-cited draft
Cross Border VAT GST

VAT, GST, and sales tax compliance for international digital businesse…

VAT / GSTInternational / OtherSource-cited draft
Angola Personal Income Tax

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

Income TaxAngolaSource-cited draft
US Tax Workflow Base

Tier 1 workflow base for US federal income tax skills serving sole pro…

Income TaxUS FederalSource-cited draft
IL Customs Duty

When calculating Israeli customs duty, VAT, and purchase tax on import…

Cross-BorderIsraelSource-cited draft
Massachusetts Sales Tax

Whenever asked about Massachusetts sales and use tax. Trigger on phras…

VAT / GSTMassachusettsSource-cited draft
Burundi Corporate Income Tax

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

Income TaxBurundiSource-cited draft
Argentina Company Formation & Entity Choice

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

Company FormationArgentinaSource-cited draft
North Macedonia Payroll

Whenever asked about North Macedonia payroll processing for employed p…

PayrollNorth MacedoniaSource-cited draft
SA Formation

ALWAYS read this skill whenever asked about forming, incorporating, re…

Company FormationSaudi ArabiaSource-cited draft
Eritrea Personal Income Tax

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

Income TaxEritreaSource-cited draft
KS Sales Tax

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

VAT / GSTKansasSource-cited draft
California Sales Tax

Whenever asked about California sales and use tax, CDTFA filings, Cali…

VAT / GSTCaliforniaSource-cited draft
IL Pprt—IllinoisSource-cited draft
Mexico Einvoice

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

E-InvoicingMexicoSource-cited draft
Curacao Payroll & Social Contributions

Source-cited draft: payroll & social contributions for Curacao (tax ye…

PayrollCuraçaoSource-cited draft
Somalia Payroll & Social Contributions

Source-cited draft: payroll & social contributions for Somalia (tax ye…

PayrollSomaliaSource-cited draft
Afghanistan Company Formation & Entity Choice

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

Company FormationAfghanistanSource-cited draft
Nicaragua Income Tax -- Rentas del Trabajo

Whenever asked about Nicaragua income tax (Impuesto sobre la Renta, IR…

Income TaxNicaraguaSource-cited draft
IE Formation

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

Company FormationIrelandSource-cited draft
Guinea-Bissau Corporate Income Tax

Source-cited draft: corporate income tax for Guinea-Bissau (tax year 2…

Income TaxGuinea-BissauSource-cited draft
MS Sales Tax

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

VAT / GSTMississippiSource-cited draft
Thailand Pit

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

Income TaxThailandSource-cited draft
Timor-Leste Payroll & Social Contributions

Source-cited draft: payroll & social contributions for Timor-Leste (ta…

PayrollTimor-LesteSource-cited draft
Gabon Payroll & Social Contributions

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

PayrollGabonSource-cited draft
MI Corporate Income TaxIncome TaxMichiganSource-cited draft
Guyana Tax Overview

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

Income TaxGuyanaSource-cited draft
US Section 1202 QSBS

Tier 2 US federal content skill for IRC §1202 Qualified Small Business…

—US FederalSource-cited draft
Japan Consumption Tax

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

VAT / GSTJapanSource-cited draft
Uruguay Income Tax (IRPF) -- Resident Individual

Whenever asked about Uruguay personal income tax (IRPF) for resident i…

Income TaxUruguaySource-cited draft
Texas Sales Tax

Whenever asked about Texas sales and use tax, Comptroller filings, Tex…

VAT / GSTTexasSource-cited draft
Gambia Company Formation & Entity Choice

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

Company FormationGambiaSource-cited draft

Dominican Republic

22 Guides · Partner: Miguel Lantigua

Guides awaiting reviewBecome a Partner