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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 · 1595 matching · 244 jurisdictions

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NameDomainJurisdictionStatus
CZ Social Health

Whenever asked about Czech self-employed social and health insurance c…

PayrollCzech RepublicSource-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

NM Income Tax

Whenever asked about New Mexico individual income tax for self-employe…

Income TaxNew MexicoSource-cited draft
Montenegro Tax Optimization

Whenever asked about reducing tax in Montenegro, tax planning, or lega…

Tax OptimizationMontenegroSource-cited draft
SA Freelance Intake

When a user asks for help with Saudi tax/Zakat compliance and mentions…

Income TaxSaudi ArabiaSource-cited draft
Italy Payroll

Whenever asked about Italian payroll processing for employees. Trigger…

PayrollItalySource-cited draft
Ecuador IVA

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

VAT / GSTEcuadorSource-cited draft
NC Return Assembly

Final capstone orchestrator that assembles the complete federal + Nort…

Income TaxNorth CarolinaSource-cited draft
NH Interest Dividends NoteIncome TaxNew HampshireSource-cited draft
Zambia Personal Income Tax

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

Income TaxZambiaSource-cited draft
Russia VATVAT / GSTRussiaSource-cited draft
Singapore Tax Optimization

When advising on LEGAL tax minimization strategies for Singapore taxpa…

Tax OptimizationSingaporeSource-cited draft
Armenia Personal Income Tax -- Self-Employed & Individuals

Whenever asked about Armenian personal income tax for individuals, sel…

Income TaxArmeniaSource-cited draft
PL VAT Return

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

VAT / GSTPolandSource-cited draft
PL Income Tax

Whenever asked about Polish income tax (PIT) for self-employed individ…

Income TaxPolandSource-cited draft
Sao Tome and Principe Personal Income Tax

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

Income TaxSão Tomé and PríncipeSource-cited draft
PT Nhr Ifici

Utilizar este skill sempre que questões envolvam o regime do Residente…

—PortugalSource-cited draft
Moldova (Republic of Moldova) Income Tax -- Self-Employed and Individuals

Whenever asked about Moldova (Republic of Moldova) personal income tax…

Income TaxMoldovaSource-cited draft
Zambia Company Formation & Entity Choice

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

Company FormationZambiaSource-cited draft
ID Payroll Pph21

Whenever asked to calculate, review, or advise on Indonesian payroll —…

PayrollIndonesiaSource-cited draft
Liberia Corporate Income Tax

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

Income TaxLiberiaSource-cited draft
US Tx Freelance Intake

When a user asks for help preparing their US federal tax return AND me…

Income TaxTexasSource-cited draft
JP Freelance Intake

When a user asks for help preparing their Japanese tax returns AND men…

Income TaxJapanSource-cited draft
US Tx Return Assembly

Final orchestrator skill that assembles the complete federal and Texas…

Income TaxTexasSource-cited draft
Namibia Company Formation & Entity Choice

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

Company FormationNamibiaSource-cited draft
Hong Kong Tax

Whenever asked about Hong Kong taxation, whether VAT/GST/sales tax exi…

Income TaxHong KongSource-cited draft
Chile Corporate Income Tax

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

Income TaxChileSource-cited draft
Moldova VAT

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

VAT / GSTMoldovaSource-cited draft
Brunei Payroll & Social Contributions

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

PayrollBruneiSource-cited draft
MS Income Tax

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

Income TaxMississippiSource-cited draft
Oecd Model Treaty Defaults

OECD Model Tax Convention default provisions for cross-border tax allo…

Cross-BorderInternational / OtherSource-cited draft
Germany Bookkeeping

Whenever asked about bookkeeping, chart of accounts, Kontenrahmen, SKR…

BookkeepingGermanySource-cited draft
Iraq Corporate Income Tax

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

Income TaxIraqSource-cited draft
DE Return Assembly

Final orchestrator skill that assembles the complete German filing pac…

Income TaxGermanySource-cited draft
Uzbekistan Tax Optimization

Whenever asked about reducing tax in Uzbekistan, tax planning, or lega…

Tax OptimizationUzbekistanSource-cited draft
MN Sales Tax

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

VAT / GSTMinnesotaSource-cited draft
MN Corporate And PTE—MinnesotaSource-cited draft
MA Tax Optimization

Whenever asked about legitimate (legal) tax optimization for a self-em…

Tax OptimizationMoroccoSource-cited draft
Malaysia Einvoice

Whenever asked about Malaysia e-invoicing, MyInvois system, LHDN/LHDNM…

E-InvoicingMalaysiaSource-cited draft
NY Payroll

Tier 2 New York content skill for employer payroll compliance covering…

PayrollNew YorkSource-cited draft
NZ Acc Levies

Whenever asked about New Zealand ACC levies for self-employed individu…

PayrollNew ZealandSource-cited draft
Non-resident rental income tax on Kenyan property

Non-resident rental income tax on Kenyan property: a guide for foreign…

Corporate TaxKenyaSource-cited draft
Netherlands — Owner-Occupied Home Tax Scheme

The Dutch owner-occupied home scheme

Income TaxNetherlandsSource-cited draft
Slovenia VAT Return

Whenever asked to prepare, review, or create a Slovenian VAT return (D…

VAT / GSTSloveniaSource-cited draft
Mongolia Corporate Income Tax

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

Income TaxMongoliaSource-cited draft
Mongolia Tax Overview

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

Income TaxMongoliaSource-cited draft
Honduras Payroll

Whenever asked about Honduras payroll processing for employed persons.…

PayrollHondurasSource-cited draft
TW Income Tax

Whenever asked about Taiwan individual income tax. Trigger on phrases …

Income TaxTaiwanSource-cited draft
CO VAT Return

Colombian VAT return (IVA -- Impuesto sobre las Ventas) for self-emplo…

VAT / GSTColombiaSource-cited draft
Permanent Establishment Risk

Whenever a freelancer or small business has cross-border activity that…

Cross-BorderGLOBALSource-cited draft
Taxes and Small Businesses in Nigeria: A Simple Guide

Nigeria has a new tax law. It is called the Nigeria Tax Act 2025. It s…

Income TaxNigeriaSource-cited draft

United Kingdom

27 Guides · Reviewed by: James Power

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