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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.

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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.

1752 Guides · 1548 matching · 241 jurisdictions

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Azerbaijan Company Formation & Entity Choice

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

Company FormationAzerbaijanSource-cited draft

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1752 Guides across 241 jurisdictions. You do not need to review an entire country — choose a Guide within your expertise and get credited as an Open Accountants Partner on the ones you review.

GLOBAL

61 Guides · Awaiting review

US Federal

58 Guides · Awaiting review

Spain

22 Guides · Awaiting review

Australia

20 Guides · Awaiting review

Canada

35 Guides · Partner: Edgar Lautsyus

Azerbaijan Tax Overview

Source-cited draft: tax overview for Azerbaijan (tax year 2025) — rate…

Income TaxAzerbaijanSource-cited draft
Zimbabwe Company Formation & Entity Choice

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

Company FormationZimbabweSource-cited draft
SE Social Contributions

Whenever asked about Swedish self-employed social contributions (egena…

PayrollSwedenSource-cited draft
Ukraine VAT

Whenever asked to prepare, review, or advise on a Ukraine VAT (PDV) re…

VAT / GSTUkraineSource-cited draft
NE Sales Tax

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

VAT / GSTNebraskaSource-cited draft
Germany Payroll

Whenever asked about German payroll processing for employees. Trigger …

PayrollGermanySource-cited draft
Egypt VAT

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

VAT / GSTEgyptSource-cited draft
New Jersey Sales Tax

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

VAT / GSTNew JerseySource-cited draft
Italy Formation

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

Company FormationItalySource-cited draft
EU Reverse Charge

Whenever a cross-border B2B service transaction occurs between EU memb…

VAT / GSTGLOBALSource-cited draft
Nigeria VAT

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

VAT / GSTNigeriaSource-cited draft
Belarus Company Formation & Entity Choice

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

Company FormationBelarusSource-cited draft
Uganda VAT

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

VAT / GSTUgandaSource-cited draft
MY Income Tax

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

Income TaxMalaysiaSource-cited draft
Mississippi Sales Tax

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

VAT / GSTMississippiSource-cited draft
Indiana Sales Tax

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

VAT / GSTIndianaSource-cited draft
TX Sales Use Tax

Texas Sales and Use Tax return (Form 01-114) for self-employed individ…

Income TaxTexasSource-cited draft
Maine Sales Tax

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

VAT / GSTMassachusettsSource-cited draft
Bermuda Tax

Whenever asked about Bermuda taxation, payroll tax, customs duties, or…

Income TaxBermudaSource-cited draft
CA Payroll

Tier 2 California content skill for employer payroll compliance coveri…

PayrollCaliforniaSource-cited draft
Paraguay IPS Social Security Contributions (Aportes)

Whenever asked about Paraguay IPS social security contributions (aport…

PayrollParaguaySource-cited draft
BC PST

For British Columbia Provincial Sales Tax — 7% non-harmonized retail s…

—CanadaSource-cited draft
Iran VAT

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

VAT / GSTIranSource-cited draft
Brunei Tax

Whenever asked about Brunei Darussalam tax obligations. Trigger on phr…

Income TaxBruneiSource-cited draft
Norway Company Formation & Entity Choice

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

Company FormationNorwaySource-cited draft
CL Social Contributions

Whenever asked about Chilean self-employed social contributions (cotiz…

PayrollChileSource-cited draft
AU Medicare Levy

Whenever asked about the Australian Medicare Levy, Medicare Levy Surch…

PayrollAustraliaSource-cited draft
DC Sales Tax

Whenever asked about District of Columbia sales tax, DC OTR filings. T…

VAT / GSTDistrict of ColumbiaSource-cited draft
JP Bookkeeping

Whenever asked about bookkeeping or journal entries for a self-employe…

BookkeepingJapanSource-cited draft
CO Income Tax

Whenever asked about Colorado individual income tax for self-employed …

Income TaxColoradoSource-cited draft
Bolivia Tax Optimization

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

Tax OptimizationBoliviaSource-cited draft
CT Payroll

Tier 2 Connecticut content skill for employer payroll compliance cover…

PayrollConnecticutSource-cited draft
NL Income Tax

Whenever asked about Netherlands income tax for self-employed individu…

Income TaxNetherlandsSource-cited draft
DE Formation

Tier 2 Delaware content skill for entity formation covering tax year 2…

Company FormationDelawareSource-cited draft
Belgium Bookkeeping

Whenever asked about Belgian bookkeeping, chart of accounts, PCMN/MAR,…

BookkeepingBelgiumSource-cited draft
Australia Formation

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

Company FormationAustraliaSource-cited draft
Latvia VAT Return

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

VAT / GSTLatviaSource-cited draft
GA Payroll

Tier 2 Georgia content skill for employer payroll compliance covering …

PayrollGeorgia (US)Source-cited draft
PL Zus Contributions

Whenever asked about Polish ZUS (Zakład Ubezpieczeń Społecznych) socia…

PayrollPolandSource-cited draft
ES VAT Return

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

VAT / GSTSpainSource-cited draft
CO Payroll

Tier 2 Colorado content skill for employer payroll compliance covering…

PayrollColoradoSource-cited draft
Statutory Audit Workflow Base

Tier 1 workflow base for statutory audit skills. Covers the audit life…

Income TaxGLOBALSource-cited draft
UA Bookkeeping

Ukrainian sole-proprietor (ФОП) record-keeping and bookkeeping: the in…

BookkeepingUkraineSource-cited draft
OH Sales Tax

Whenever asked about Ohio sales and use tax, ODT filings, Ohio CAT, Oh…

VAT / GSTOhioSource-cited draft
Iraq Tax

Whenever asked about Iraq taxation, sales tax, or the absence of VAT i…

Income TaxIraqSource-cited draft
References—VietnamSource-cited draft
Ghana VAT

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

VAT / GSTGhanaSource-cited draft
KS Income Tax

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

Income TaxKansasSource-cited draft
New Zealand GST

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

VAT / GSTNew ZealandSource-cited draft

Dominican Republic

22 Guides · Partner: Miguel Lantigua

Guides awaiting reviewBecome a Partner