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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
Nyc Unincorporated Business Tax

NYC Unincorporated Business Tax (UBT) for sole proprietors and SMLLCs …

Company FormationUS-NY-NYCSource-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

NJ Cbt And Bait—New JerseySource-cited draft
FR Personal Income Tax

Comprehensive French personal income tax (impôt sur le revenu / IR) gu…

Income TaxFranceSource-cited draft
EU VAT Base

Load this skill as a shared reference whenever working on VAT for any …

VAT / GSTEU (general)Source-cited draft
Gambia Company Formation & Entity Choice

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

Company FormationGambiaSource-cited draft
Egypt VAT

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

VAT / GSTEgyptSource-cited draft
CN VAT

当用户要求准备、复核、分类与中国增值税(VAT / 增值税)相关的交易、申报或合规事项时,必须先阅读本技能。触发关键词包括:"中国增值税"、…

VAT / GSTChinaSource-cited draft
Cape Verde Personal Income Tax

Source-cited draft: personal income tax for Cape Verde (tax year 2025)…

Income TaxCape VerdeSource-cited draft
Republic of Congo Personal Income Tax

Source-cited draft: personal income tax for Republic of Congo (tax yea…

Income TaxRepublic of CongoSource-cited draft
Guyana Company Formation & Entity Choice

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

Company FormationGuyanaSource-cited draft
Hong Kong VAT / GST

Source-cited draft: vat / gst for Hong Kong (tax year 2025) — rates, t…

VAT / GSTHong KongSource-cited draft
Can a Foreigner Start a Business in Serbia?

Can a Foreigner Start a Business in Serbia?

Company FormationSerbiaSource-cited draft
Tonga Personal Income Tax

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

Income TaxTongaSource-cited draft
SA Return Assembly

Whenever asked to assemble, finalize, or package a Saudi Arabian annua…

Income TaxSaudi ArabiaSource-cited draft
How to Open a Company in Serbia as a Foreigner – DOO & Entrepreneur Registration Guide

How to Register a DOO or Entrepreneur in Serbia as a Foreign Citizen

Company FormationSerbiaSource-cited draft
NL Return Assembly

Final orchestrator skill that assembles the complete Netherlands filin…

Income TaxNetherlandsSource-cited draft
Customs Duties Workflow Base

Tier 1 workflow base for customs duty skills. Covers the customs decla…

Cross-BorderGLOBALSource-cited draft
NH Bpt Bet—New HampshireSource-cited draft
Djibouti Company Formation & Entity Choice

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

Company FormationDjiboutiSource-cited draft
PT VAT Return

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

VAT / GSTPortugalAttested by another accountant
Costa Rica Tax Optimization

Whenever asked about reducing tax in Costa Rica, tax planning, or lega…

Tax OptimizationCosta RicaSource-cited draft
Tajikistan VAT / GST

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

VAT / GSTTajikistanSource-cited draft
Shipping Aviation Tonnage Tax

Whenever a shipping company, vessel operator, ship owner, ship manager…

Income TaxGLOBALSource-cited draft
CT Income Tax

Whenever asked about Connecticut individual income tax for self-employ…

Income TaxConnecticutSource-cited draft
Moving from the UK to the UAE: the complete tax corridor

What actually happens to your UK tax when you move to Dubai or Abu Dha…

Cross-BorderUnited KingdomSource-cited draft
Ivory Coast VAT

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

VAT / GSTCôte d'IvoireSource-cited draft
Japan Consumption Tax

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

VAT / GSTJapanSource-cited draft
FL Sales Use Tax

Florida Sales and Use Tax return (Form DR-15) for self-employed indivi…

Income TaxFloridaAttested by another accountant
NY Corporate Franchise Article 9a—New YorkSource-cited draft
Luxembourg Social Security Contributions (Cotisations Sociales)

Whenever asked about Luxembourg social security contributions (cotisat…

PayrollLuxembourgSource-cited draft
Mexico Crypto Tax

Whenever asked about Mexico cryptocurrency or virtual asset taxation. …

Crypto TaxMexicoSource-cited draft
IL New Immigrant

Israel new immigrant and returning resident 10-year tax exemption on f…

—IsraelSource-cited draft
Wealth Estate Tax Workflow Base

Tier 1 workflow base for wealth tax, inheritance / estate tax, gift ta…

Income TaxGLOBALSource-cited draft
Sao Tome and Principe Tax Overview

Source-cited draft: tax overview for Sao Tome and Principe (tax year 2…

Income TaxSão Tomé and PríncipeSource-cited draft
IE Formation

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

Company FormationIrelandSource-cited draft
Belize Corporate Income Tax

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

Income TaxBelizeSource-cited draft
North Macedonia Compulsory Social Contributions & Payroll

Whenever asked about North Macedonia (Republic of North Macedonia, MK)…

PayrollNorth MacedoniaSource-cited draft
Suriname Company Formation & Entity Choice

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

Company FormationSurinameSource-cited draft
Belarus Social Insurance Contributions (FSZN) + Payroll PIT

Whenever asked about Belarus social insurance contributions (FSZN / ФС…

PayrollBelarusSource-cited draft
Moldova Payroll

Whenever asked about Moldova (Republic of Moldova) payroll processing …

PayrollMoldovaSource-cited draft
US Ny Freelance Intake

When a user asks for help preparing their US federal or New York state…

Income TaxNew YorkSource-cited draft
OR Cat—OregonSource-cited draft
Suriname VAT / GST

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

VAT / GSTSurinameSource-cited draft
Curacao Payroll & Social Contributions

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

PayrollCuraçaoSource-cited draft
Curacao Company Formation & Entity Choice

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

Company FormationCuraçaoSource-cited draft
Maryland Sales Tax

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

VAT / GSTMassachusettsSource-cited draft
ES Capital Gains

Spain capital gains tax: savings income rates (19%–28%), holding perio…

Income TaxSpainSource-cited draft
Sao Tome and Principe Corporate Income Tax

Source-cited draft: corporate income tax for Sao Tome and Principe (ta…

Income TaxSão Tomé and PríncipeSource-cited draft
Timor-Leste Company Formation & Entity Choice

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

Company FormationTimor-LesteSource-cited draft
Somalia VAT / GST

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

VAT / GSTSomaliaSource-cited draft

United Kingdom

27 Guides · Reviewed by: James Power

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