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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.

© 2026 OpenAccountants. Open tax rules, reviewed by accountants.

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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Eritrea Corporate Income Tax

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

Income TaxEritreaSource-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

DE Estimated Tax

Whenever asked about German estimated income tax prepayments (Vorausza…

Income TaxGermanySource-cited draft
Uganda Payroll & Social Contributions

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

PayrollUgandaSource-cited draft
Uganda Tax Overview

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

Income TaxUgandaSource-cited draft
RU Financial Statements

Whenever asked about financial statements or formal accounting reporti…

Financial StatementsRussiaSource-cited draft
NT Individual Return

Whenever asked about Northwest Territories territorial income tax for …

Income TaxCanadaSource-cited draft
Nicaragua IVA

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

VAT / GSTNicaraguaSource-cited draft
Cambodia VAT

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

VAT / GSTCambodiaSource-cited draft
Guatemala Payroll

Whenever asked about Guatemala payroll processing for employed persons…

PayrollGuatemalaSource-cited draft
Bermuda VAT / GST

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

VAT / GSTBermudaSource-cited draft
Uganda Corporate Income Tax

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

Income TaxUgandaSource-cited draft
Zambia Corporate Income Tax

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

Income TaxZambiaSource-cited draft
Uganda Company Formation & Entity Choice

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

Company FormationUgandaSource-cited draft
CZ Social Health

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

PayrollCzech RepublicSource-cited draft
Niger Company Formation & Entity Choice

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

Company FormationNigerSource-cited draft
Cameroon VAT

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

VAT / GSTCameroonSource-cited draft
Banking Sector

Whenever a bank, neobank, payment institution, e-money institution, or…

—GLOBALSource-cited draft
Zambia Tax Overview

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

Income TaxZambiaSource-cited draft
TW Income Tax

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

Income TaxTaiwanSource-cited draft
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
Zambia Personal Income Tax

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

Income TaxZambiaSource-cited draft
PT Return Assembly

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

Income TaxPortugalSource-cited draft
NH Interest Dividends NoteIncome TaxNew HampshireSource-cited draft
PL VAT Return

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

VAT / GSTPolandSource-cited draft
GA Income Tax

Georgia Individual Income Tax Return (Form 500) for sole proprietors a…

Income TaxGeorgia (US)Source-cited draft
PL Income Tax

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

Income TaxPolandSource-cited draft
Zambia Payroll & Social Contributions

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

PayrollZambiaSource-cited draft
Kosovo Tax Optimization

Whenever asked about reducing tax in Kosovo, tax planning, or legal st…

Tax OptimizationKosovoSource-cited draft
MA Cpu

Whenever asked about Morocco's Contribution Professionnelle Unique (CP…

—MoroccoSource-cited draft
FR Personal Income Tax

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

Income TaxFranceSource-cited draft
EG Sme Tax

Whenever asked about Egypt's simplified or SME tax regime for small se…

Income TaxEgyptSource-cited draft
Malaysia Einvoice

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

E-InvoicingMalaysiaSource-cited draft
Zambia Company Formation & Entity Choice

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

Company FormationZambiaSource-cited draft
Canada GST HST

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

VAT / GSTCanadaSource-cited draft
Mozambique Personal Income Tax (IRPS)

Whenever asked about Mozambique personal income tax (IRPS) for employe…

Income TaxMozambiqueSource-cited draft
Belarus Payroll

Whenever asked about Belarus payroll processing for employed persons. …

PayrollBelarusSource-cited draft
MS Income Tax

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

Income TaxMississippiSource-cited draft
Cross Border Payroll Coordination

Cross-border payroll compliance for companies with employees or contra…

Cross-BorderInternational / OtherSource-cited draft
Moldova VAT

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

VAT / GSTMoldovaSource-cited draft
Croatia Tax Optimization

Whenever asked about reducing tax in Croatia, tax planning, saving tax…

Tax OptimizationCroatiaSource-cited draft
US Ca Freelance Intake

When a user asks for help preparing their US federal or California sta…

Income TaxCaliforniaSource-cited draft
JP Social Insurance

Whenever asked about Japanese National Health Insurance (NHI) or Natio…

PayrollJapanSource-cited draft
MN Corporate And PTE—MinnesotaSource-cited draft
NY Payroll

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

PayrollNew YorkSource-cited draft
Mongolia Tax Overview

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

Income TaxMongoliaSource-cited draft
Serbia Social Security Contributions & Payroll Tax

Whenever asked about Serbian payroll taxes and mandatory social securi…

PayrollSerbiaSource-cited draft
MN Sales Tax

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

VAT / GSTMinnesotaSource-cited draft
Mongolia Corporate Income Tax

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

Income TaxMongoliaSource-cited draft
IT Inps Contributions

Whenever asked about Italian INPS social contributions for self-employ…

PayrollItalySource-cited draft

Dominican Republic

22 Guides · Partner: Miguel Lantigua

Guides awaiting reviewBecome a Partner