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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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NO VAT Return

Redirect — consolidated into norway-mva.md in this directory.

VAT / GSTNorwaySource-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

Togo Corporate Income Tax

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

Income TaxTogoSource-cited draft
Central African Republic Payroll & Social Contributions

Source-cited draft: payroll & social contributions for Central African…

PayrollCentral African RepublicSource-cited draft
Vietnam Tax Overview

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

Income TaxVietnamSource-cited draft
Indonesia VAT

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

VAT / GSTIndonesiaSource-cited draft
EG Ae Dtt Corridor

Whenever asked about the Egypt-UAE Double Tax Treaty — for residents/c…

—EG-AESource-cited draft
RU Financial Statements

Whenever asked about financial statements or formal accounting reporti…

Financial StatementsRussiaSource-cited draft
SD Company Formation

Whenever asked about Sudanese company formation, entity types, registr…

—SudanSource-cited draft
Saudi Arabia VAT

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

VAT / GSTSaudi ArabiaAttested by another accountant
UK Income Tax Sa100

Whenever asked about UK income tax for individuals filing SA100 Self A…

Income TaxUnited KingdomAttested by another accountant
Montenegro Payroll

Whenever asked about Montenegro payroll processing for employed person…

PayrollMontenegroSource-cited draft
Wisconsin Sales Tax

Whenever asked about Wisconsin sales tax, Wisconsin use tax, Wisconsin…

VAT / GSTWisconsinSource-cited draft
Bulgaria Personal Income Tax (ДДФЛ)

Whenever asked about Bulgaria personal income tax (данък върху доходит…

Income TaxBulgariaSource-cited draft
EG Sa Dtt Corridor

Whenever asked about the Egypt-Saudi Arabia Double Tax Treaty — for re…

—EG-SASource-cited draft
Angola Personal Income Tax

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

Income TaxAngolaSource-cited draft
Burundi Corporate Income Tax

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

Income TaxBurundiSource-cited draft
HU VAT Return

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

VAT / GSTHungarySource-cited draft
Canada Bookkeeping

Whenever asked about Canadian bookkeeping for sole proprietors, partne…

BookkeepingCanadaAttested by another accountant
Gabon Company Formation & Entity Choice

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

Company FormationGabonSource-cited draft
AZ Payroll

Tier 2 Arizona content skill for employer payroll compliance covering …

PayrollArizonaSource-cited draft
Cross Border VAT GST

VAT, GST, and sales tax compliance for international digital businesse…

VAT / GSTInternational / OtherSource-cited draft
Massachusetts Sales Tax

Whenever asked about Massachusetts sales and use tax. Trigger on phras…

VAT / GSTMassachusettsSource-cited draft
Japan Transfer Pricing

Whenever asked about Japan transfer pricing rules, documentation requi…

Transfer PricingJapanSource-cited draft
Zimbabwe Payroll & Social Contributions

Source-cited draft: payroll & social contributions for Zimbabwe (tax y…

PayrollZimbabweSource-cited draft
Moving from the UK to Italy: the flat-tax corridor

Italy has become the destination for UK leavers with wealth: the €200,…

Cross-BorderUnited KingdomSource-cited draft
KS Sales Tax

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

VAT / GSTKansasSource-cited draft
IRPP calculation

IRPP calculation in Tunisia: how I do it

Income TaxTunisiaSource-cited draft
Argentina Company Formation & Entity Choice

Source-cited draft: company formation & entity choice for Argentina (t…

Company FormationArgentinaSource-cited draft
California Sales Tax

Whenever asked about California sales and use tax, CDTFA filings, Cali…

VAT / GSTCaliforniaSource-cited draft
Kyrgyzstan Corporate Income Tax

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

Income TaxKyrgyzstanSource-cited draft
Eritrea Personal Income Tax

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

Income TaxEritreaSource-cited draft
SA Gosi Saudization

ALWAYS read this skill before touching any Saudi Arabia employer compl…

—Saudi ArabiaAttested by another accountant
Slovenia Income Tax -- Self-Employed and Individuals

Whenever asked about Slovenia (Slovenija) personal income tax for self…

Income TaxSloveniaSource-cited draft
Switzerland Crypto Tax

Whenever asked about Switzerland cryptocurrency or digital asset taxat…

Crypto TaxSwitzerlandSource-cited draft
IL Pprt—IllinoisSource-cited draft
SK PST

For Saskatchewan Provincial Sales Tax — 6% non-harmonized sales tax. T…

—CanadaSource-cited draft
Cayman Islands Tax Overview

Source-cited draft: tax overview for Cayman Islands (tax year 2025) — …

Income TaxCayman IslandsSource-cited draft
Leaving South Africa: tax emigration, the exit charge, and the three-year locks

South Africa replaced 'financial emigration' with a purely tax-driven …

Cross-BorderSouth AfricaSource-cited draft
MS Sales Tax

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

VAT / GSTMississippiSource-cited draft
Norway Company Formation & Entity Choice

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

Company FormationNorwaySource-cited draft
Somalia Payroll & Social Contributions

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

PayrollSomaliaSource-cited draft
Timor-Leste Payroll & Social Contributions

Source-cited draft: payroll & social contributions for Timor-Leste (ta…

PayrollTimor-LesteSource-cited draft
Thailand Pit

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

Income TaxThailandSource-cited draft
Romania Einvoice

Whenever asked about e-invoicing in Romania, RO e-Factura, ANAF electr…

E-InvoicingRomaniaSource-cited draft
CN Freelance Intake

When a user asks for help with Chinese tax compliance AND mentions fre…

Income TaxChinaSource-cited draft
Guinea-Bissau Corporate Income Tax

Source-cited draft: corporate income tax for Guinea-Bissau (tax year 2…

Income TaxGuinea-BissauSource-cited draft
Sri Lanka Payroll

ALWAYS read this skill before touching any Sri Lanka payroll work. Use…

PayrollSri LankaAttested by another accountant
Gabon Payroll & Social Contributions

Source-cited draft: payroll & social contributions for Gabon (tax year…

PayrollGabonSource-cited draft
RO Cas Cass

Whenever asked about Romanian self-employed social and health contribu…

—RomaniaSource-cited draft
FR Personal Income Tax

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

Income TaxFranceSource-cited draft

United Kingdom

27 Guides · Reviewed by: James Power

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