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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 · 1595 matching · 244 jurisdictions

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— researched and cited, not yet reviewed by a licensed practitioner.
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— reviewed as general reference material by a named licensed practitioner.
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— do not use for current work.
NameDomainJurisdictionStatus
JP Consumption Tax

Whenever asked about Japanese Consumption Tax (消費税 / JCT) for self-emp…

VAT / GSTJapanSource-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

IE Corporation Tax

Whenever asked about Irish Corporation Tax for a resident Irish compan…

Income TaxIrelandSource-cited draft
ND Payroll

Whenever asked about North Dakota employer payroll compliance — state …

PayrollNorth DakotaSource-cited draft
EG Corporate Tax

Whenever asked about Egyptian corporate income tax for resident compan…

—EgyptSource-cited draft
Nicaragua Payroll Skill v0.1 (Tier 2 — research-verified, pending accountant sign-off)

Whenever asked about Nicaragua payroll processing for employed persons…

PayrollNicaraguaSource-cited draft
EG Withholding Tax

Whenever asked about Egyptian withholding tax (WHT) on outbound paymen…

—EgyptSource-cited draft
Pennsylvania Sales Tax

Whenever asked about Pennsylvania sales and use tax, PA DOR filings, P…

VAT / GSTPennsylvaniaSource-cited draft
Belgium Payroll

Whenever asked about Belgian payroll processing, employee salary calcu…

PayrollBelgiumSource-cited draft
MB Individual Return

Whenever asked about Manitoba provincial individual income tax. Trigge…

Income TaxCanadaSource-cited draft
YT Tax Credits

For Yukon provincial tax credits — Yukon First Nations Tax Credit, Yuk…

—CanadaSource-cited draft
NB Individual Return

Whenever asked about New Brunswick provincial individual income tax. T…

Income TaxCanadaSource-cited draft
ON Eht

For Ontario Employer Health Tax (EHT). Triggers "Ontario EHT", "Employ…

—CanadaSource-cited draft
AU Div7a

Whenever asked about Division 7A of the ITAA 1936 -- private company l…

—AustraliaSource-cited draft
EG Transfer Pricing

Whenever asked about Egyptian transfer pricing documentation, benchmar…

—EgyptSource-cited draft
EG Real Estate Tax

Whenever asked about Egyptian real estate tax (ضريبة العقارات) under L…

—EgyptSource-cited draft
PE Tax Credits

For Prince Edward Island provincial tax credits — PEI Low-Income Tax R…

—CanadaSource-cited draft
FI Yel Social

Whenever asked about Finland YEL pension insurance or social security …

PayrollFinlandSource-cited draft
Oil Gas Extractives

Whenever a producer, refiner, miner, oilfield services company, midstr…

—GLOBALSource-cited draft
Iceland Payroll

Whenever asked about Iceland payroll processing for employed persons. …

PayrollIcelandSource-cited draft
Albania Social Security & Health Insurance Contributions

Whenever asked about Albania social security and health insurance cont…

PayrollAlbaniaSource-cited draft
ON Tax Credits

For Ontario personal tax credits — Ontario Trillium Benefit (OTB), OEP…

—CanadaSource-cited draft
Italy Bookkeeping

Whenever asked about bookkeeping, chart of accounts, Piano dei Conti, …

BookkeepingItalySource-cited draft
IFRS Local GAAP Reconciliation

Whenever a preparer or reviewer needs to reconcile financial statement…

Cross-BorderGLOBALSource-cited draft
Estonia Personal Income Tax -- Self-Employed (FIE) & Individuals

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

Income TaxEstoniaSource-cited draft
Greece Einvoice

Whenever asked about e-invoicing in Greece, myDATA platform, AADE elec…

E-InvoicingGreeceSource-cited draft
RU Freelance Intake

When a user asks for help with their Russian taxes AND mentions freela…

Income TaxRussiaSource-cited draft
CH Federal Income Tax

Whenever asked about Swiss federal income tax (direkte Bundessteuer / …

Income TaxSwitzerlandSource-cited draft
SD Payroll Social

Whenever asked about Sudanese payroll, social insurance contributions …

—SudanSource-cited draft
NT Payroll Tax

For the Northwest Territories Payroll Tax — 2% employer-paid payroll t…

PayrollCanadaSource-cited draft
NS Tax Credits

For Nova Scotia provincial tax credits — NS Low-Income Tax Reduction, …

—CanadaSource-cited draft
NL Tax Credits

For Newfoundland and Labrador provincial tax credits + NL Insurance Pr…

—CanadaSource-cited draft
Iceland Corporate Income Tax

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

Income TaxIcelandSource-cited draft
NB Tax Credits

For New Brunswick provincial tax credits — NB Low-Income Tax Reduction…

—CanadaSource-cited draft
Germany Einvoice

Whenever asked about German e-invoicing, XRechnung, ZUGFeRD, ERechV, E…

E-InvoicingGermanySource-cited draft
NU Tax Credits

For Nunavut provincial tax credits — Nunavut Cost of Living Tax Credit…

—CanadaSource-cited draft
SD VAT GST

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

—SudanSource-cited draft
South Africa Transfer Pricing

Whenever asked about South Africa transfer pricing rules, documentatio…

Transfer PricingSouth AfricaSource-cited draft
MB Rst

For Manitoba Retail Sales Tax (RST) — 7% sales tax (NOT harmonized wit…

—CanadaSource-cited draft
North Macedonia Personal Income Tax -- Individuals & Self-Employed

Whenever asked about North Macedonia (Republic of North Macedonia) per…

Income TaxNorth MacedoniaSource-cited draft
BR Return Assembly

Skill orquestrador final que monta o pacote completo de declarações do…

Income TaxBrazilSource-cited draft
DE Payroll

Whenever asked about German payroll tax (Lohnsteuer) computation for E…

PayrollGermanySource-cited draft
VT Sales Tax

Whenever asked about Vermont sales tax, Vermont use tax, Vermont Tax D…

VAT / GSTVermontSource-cited draft
Japan Formation

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

Company FormationJapanSource-cited draft
North Macedonia Tax Optimization

Whenever asked about reducing tax in North Macedonia, tax planning, or…

Tax OptimizationNorth MacedoniaSource-cited draft
Ias32 Debt Vs Equity

IFRS classification of issued financial instruments as financial liabi…

—GLOBALSource-cited draft
MI Payroll

Tier 2 Michigan content skill for employer payroll compliance covering…

PayrollMichiganSource-cited draft
PT Return Assembly

Utilizar esta skill sempre que for solicitada a montagem, finalização …

Income TaxPortugalSource-cited draft
Bosnia and Herzegovina Income Tax -- Personal/Self-Employed

Whenever asked about Bosnia and Herzegovina personal income tax (porez…

Income TaxBosnia and HerzegovinaSource-cited draft
Tax Controversy Map Apa

Whenever a taxpayer faces a tax authority enquiry, audit, assessment, …

Cross-BorderGLOBALSource-cited draft
UK Return Assembly

Final orchestrator skill that assembles the complete UK filing package…

Income TaxUnited KingdomSource-cited draft

United Kingdom

27 Guides · Reviewed by: James Power

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