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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.

1808 Guides · 244 jurisdictions

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NameDomainJurisdictionStatus
India Formation

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

Company FormationIndiaAttested by another accountant

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1808 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

IT Income Tax

Whenever asked about Italian income tax for self-employed individuals …

Income TaxItalySource-cited draft
Kosovo Social Contributions & Wage Taxation

Whenever asked about Kosovo payroll social contributions and wage taxa…

PayrollKosovoSource-cited draft
Non EU Export Services

Whenever a freelancer or small business sells services to a client loc…

VAT / GSTGLOBALSource-cited draft
Dominican Republic Company Formation & Entity Choice

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

Company FormationDominican RepublicSource-cited draft
Sri Lanka VAT

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

VAT / GSTSri LankaAttested by another accountant
Afghanistan VAT / GST

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

VAT / GSTAfghanistanSource-cited draft
BC Speculation Vacancy Tax

For BC Speculation and Vacancy Tax on residential properties in design…

Income TaxCanadaSource-cited draft
Tunisia Corporate Income Tax

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

Income TaxTunisiaSource-cited draft
Croatia Payroll

Whenever asked about Croatia payroll processing for employed persons. …

PayrollCroatiaSource-cited draft
NG Cit

Whenever asked about Nigerian Companies Income Tax (CIT) for a residen…

—NigeriaAttested by another accountant
NO Capital Gains

Norway capital gains tax: 22% rate, shield deduction (skjermingsfradra…

Income TaxNorwaySource-cited draft
Sri Lanka Withholding Tax

ALWAYS read this skill before touching any Sri Lanka withholding tax /…

Cross-BorderSri LankaAttested by another accountant
Malaysia Sst

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

VAT / GSTMalaysiaSource-cited draft
Germany → Switzerland: commuters, weekly stayers and full movers

The three ways Germans end up with Swiss tax lives — Grenzgänger commu…

Cross-BorderGermanySource-cited draft
Global Cloud Infrastructure

Pattern library for cloud, infrastructure, and developer tool vendors …

—GLOBALSource-cited draft
Turkey VAT

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

VAT / GSTTurkeySource-cited draft
IE Return Assembly

Whenever asked to assemble, finalize, or package an Irish annual tax r…

Income TaxIrelandSource-cited draft
RO Income Tax

Whenever asked about Romanian income tax for self-employed individuals…

Income TaxRomaniaSource-cited draft
IL Tax Withholding

When advising on Israeli tax withholding at source (ניכוי מס במקור — N…

Cross-BorderIsraelSource-cited draft
Moldova Social Contributions, Health Insurance & Personal Income Tax

Whenever asked about Moldova payroll social contributions, health insu…

PayrollMoldovaSource-cited draft
ES Income Tax

Whenever asked about Spanish personal income tax (IRPF -- Impuesto sob…

Income TaxSpainSource-cited draft
Simplified Business Operator Registration under VAT Act

Simplified business operator registration & Filing VAT return

VAT / GSTSouth KoreaSource-cited draft
CA Fed CPP EI

Whenever asked about Canada Pension Plan (CPP) or Employment Insurance…

PayrollCanadaAttested by another accountant
Estonia Payroll

Whenever asked about Estonia payroll processing for employed persons. …

PayrollEstoniaSource-cited draft
SA RETT

Whenever asked about the Saudi Arabian Real Estate Transaction Tax (RE…

—Saudi ArabiaAttested by another accountant
US GAAP Asc842 Leases

US GAAP lease accounting under ASC 842 (Leases). Covers the lessee dua…

—United StatesSource-cited draft
MI Pension Retirement Subtraction

Whenever asked about Michigan's pension/retirement income subtraction …

—MichiganSource-cited draft
FI Income Tax

Whenever asked about Finland income tax for self-employed individuals …

Income TaxFinlandSource-cited draft
Senegal Personal Income Tax (IRPP) —

Whenever asked about Senegal personal income tax (IRPP — Impôt sur le …

Income TaxSenegalSource-cited draft
The American abroad: why moving never ends your US tax life

The US taxes citizens wherever they live. What that actually means whe…

Cross-BorderUnited StatesSource-cited draft
India Einvoice

Whenever asked about India GST e-invoicing, Invoice Registration Porta…

E-InvoicingIndiaAttested by another accountant
ID Income Tax

Idaho Individual Income Tax Return (Form 40) for sole proprietors and …

Income TaxIndonesiaSource-cited draft
Iraq Tax Overview

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

Income TaxIraqSource-cited draft
Bolivia Tax Optimization

Whenever asked about reducing tax in Bolivia, tax planning, or legal s…

Tax OptimizationBoliviaSource-cited draft
Dominican Republic Customs (Aduanas)

Dominican Republic Customs (Aduanas) — accountant-verified rules from …

Cross-BorderDominican RepublicSource-cited draft
New Jersey Sales Tax

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

VAT / GSTNew JerseySource-cited draft
Gambia VAT / GST

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

VAT / GSTGambiaSource-cited draft
Ghana Pit

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

Income TaxGhanaSource-cited draft
EU Directives Cross Border

Key EU directives governing cross-border corporate taxation within the…

Cross-BorderEU-27Source-cited draft
Leaving France: the exit tax, the trailing net, and the Switzerland treaty trap

France has become a net wealth-outflow country for the first time, and…

Cross-BorderFranceSource-cited draft
Fiji Company Formation & Entity Choice

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

Company FormationFijiSource-cited draft
Andorra IGI

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

VAT / GSTAndorraSource-cited draft
Leaving India for the UAE or Singapore: the NRI tax map

Becoming a non-resident Indian is a day-count game with three statuses…

Cross-BorderIndiaSource-cited draft
India Transfer Pricing

Whenever asked about India transfer pricing rules, documentation requi…

Transfer PricingIndiaAttested by another accountant
Uruguay IVA

Whenever asked to prepare, review, or create a Uruguay IVA (Impuesto a…

VAT / GSTUruguaySource-cited draft
Kosovo Personal Income Tax -- Self-Employed and Individuals

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

Income TaxKosovoSource-cited draft
US 1099 K And Payment Processors

Tier 2 US federal content skill for Form 1099-K reporting under IRC §6…

Income TaxUnited StatesSource-cited draft
Estonia Company Formation & Entity Choice

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

Company FormationEstoniaSource-cited draft
Leaving Australia: residency, the CGT departure choice, and what follows you

Ceasing Australian tax residency triggers one of tax's strangest decis…

Cross-BorderAustraliaSource-cited draft

United Kingdom

25 Guides · Reviewed by: James Power

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