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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.

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
RI Income Tax

Triggers when the taxpayer is a Rhode Island resident sole proprietor …

Income TaxRhode IslandSource-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

ZA Income Tax

Whenever asked about South African income tax for self-employed indivi…

Income TaxSouth AfricaAttested by another accountant
WY Formation

Tier 2 Wyoming content skill for entity formation covering tax year 20…

Company FormationWyomingSource-cited draft
ND Sales Tax

Whenever asked about North Dakota sales and use tax. Trigger on phrase…

VAT / GSTNorth DakotaSource-cited draft
WA Bo TaxIncome TaxWashingtonSource-cited draft
Philippines Tax Overview

Source-cited draft: tax overview for Philippines (tax year 2025) — rat…

Income TaxPhilippinesAttested by another accountant
SD Corporate Income Tax

Whenever asked about Sudanese corporate income tax (Business Profits T…

—SudanSource-cited draft
VA Corporate Tax And Bpol—VirginiaSource-cited draft
NJ Sales Tax

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

VAT / GSTNew JerseySource-cited draft
Tunisia Tax Overview

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

Income TaxTunisiaSource-cited draft
Japan Payroll

Whenever asked about Japanese payroll, income tax withholding (源泉徴収 ge…

PayrollJapanSource-cited draft
UK Financial Statements

When preparing, reviewing, or advising on annual financial statements …

Financial StatementsUnited KingdomAttested by another accountant
NC Income Tax

Whenever asked about North Carolina individual income tax for self-emp…

Income TaxNorth CarolinaSource-cited draft
RI Sales Tax

Whenever asked about Rhode Island sales tax, RI use tax, Rhode Island …

VAT / GSTRhode IslandSource-cited draft
Trinidad and Tobago Payroll & Social Contributions

Source-cited draft: payroll & social contributions for Trinidad and To…

PayrollTrinidad and TobagoSource-cited draft
Bulgaria Social Security & Health Insurance Contributions

Whenever asked about Bulgaria social security and health insurance con…

PayrollBulgariaSource-cited draft
OR Income Tax

Triggers when the taxpayer is an Oregon resident sole proprietor or si…

Income TaxOregonSource-cited draft
Tunisia Company Formation & Entity Choice

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

Company FormationTunisiaSource-cited draft
Italy VAT Return

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

VAT / GSTItalySource-cited draft
Belize VAT / GST

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

VAT / GSTBelizeSource-cited draft
AE VAT Return

This skill has been consolidated. See uae-vat.md in this directory.

VAT / GSTUnited Arab EmiratesAttested by another accountant
US GILTI FDII BEAT

Tier 2 US federal international tax content skill for §951A GILTI / po…

Cross-BorderUnited StatesSource-cited draft
Tunisia VAT

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

VAT / GSTTunisiaSource-cited draft
CH Ahv Iv

Whenever asked about Swiss AHV/IV (Alters- und Hinterlassenenversicher…

PayrollSwitzerlandSource-cited draft
Vietnam Payroll & Social Contributions

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

PayrollVietnamSource-cited draft
TN Sales TaxVAT / GSTTennesseeSource-cited draft
Vietnam Pit

Whenever asked about Vietnam personal income tax (thuế thu nhập cá nhâ…

Income TaxVietnamSource-cited draft
CH VAT Return

Redirect — consolidated into switzerland-vat.md in this directory.

VAT / GSTSwitzerlandSource-cited draft
Tanzania VAT

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

VAT / GSTTanzaniaAttested by another accountant
US Foreign Earned Income 2555

Tier 2 US federal content skill for §911 Foreign Earned Income Exclusi…

—United StatesSource-cited draft
Tunisia Payroll & Social Contributions

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

PayrollTunisiaAttested by another accountant
CA Return Assembly

Final orchestrator skill that assembles the complete Canadian filing p…

Income TaxCanadaSource-cited draft
PT Foreign Source Treaties

Utilizar esta skill sempre que estejam em causa rendimentos estrangeir…

—PortugalSource-cited draft
FR Business Accounting

French business accounting, VAT declarations, invoicing, and e-invoici…

—FranceSource-cited draft
Mongolia VAT

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

VAT / GSTMongoliaSource-cited draft
Armenia Social Contributions & Payroll Withholding

Whenever asked about Armenia payroll social contributions and personal…

PayrollArmeniaSource-cited draft
Ethiopia Corporate Income Tax

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

Income TaxEthiopiaSource-cited draft
UT Sales Tax

Whenever asked about Utah sales tax, Utah use tax, USTC sales tax fili…

VAT / GSTUtahSource-cited draft
Eswatini Tax Overview

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

Income TaxEswatiniSource-cited draft
Colombia Corporate Income Tax

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

Income TaxColombiaSource-cited draft
SD Sales Tax

Whenever asked about South Dakota sales tax, South Dakota use tax, Sou…

VAT / GSTSouth DakotaSource-cited draft
ID Sales Tax

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

VAT / GSTIdahoSource-cited draft
Cyprus Social Insurance & GHS (GESY) Contributions

Whenever asked about Cyprus social insurance and General Healthcare Sy…

PayrollCyprusAttested by another accountant
TX Franchise Tax

Texas Franchise Tax for single-member LLCs and other taxable entities.…

Income TaxTexasSource-cited draft
Cyprus Income Tax -- Self-Employed and Individuals

Whenever asked about Cyprus personal income tax for self-employed indi…

Income TaxCyprusAttested by another accountant
Philippines VAT

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

VAT / GSTPhilippinesAttested by another accountant
Switzerland Company Formation & Entity Choice

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

Company FormationSwitzerlandSource-cited draft
Sri Lanka Sscl

ALWAYS read this skill before touching any Sri Lanka Social Security C…

—Sri LankaAttested by another accountant
Belgium Crypto Tax

Whenever asked about Belgium cryptocurrency or digital asset taxation.…

Crypto TaxBelgiumSource-cited draft
Iceland Social Security Contributions and Mandatory Pension

Whenever asked about Iceland (Ísland) social security contributions, p…

PayrollIcelandSource-cited draft

United Kingdom

27 Guides · Reviewed by: James Power

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