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OpenAccountants provides general tax and accounting reference material and AI-assisted working-paper tools. It is not tax, legal, accounting, or financial advice. Outputs must be reviewed by a qualified professional before filing, payment, or action.

OpenAccountants provides general tax and accounting reference material and AI-assisted working-paper tools. It is not tax, legal, accounting, or financial advice. Outputs must be reviewed by a qualified professional before filing, payment, or action.

© 2026 OpenAccountants. All rights reserved.

The open rules layer

Open tax rules for AI workflows

Browse the open tax and accounting skills that power OpenAccountants workflows. Each skill is designed to be cited, inspectable, machine-readable, and usable by AI agents. Some are source-cited drafts. Some have named accountant review. All are part of the open rules layer.

The rules are open. The trust layer shows who reviewed them.

1754 skills · 48 matching · 242 jurisdictions

Source-cited draft
— researched and cited, not yet reviewed by a licensed practitioner.
Accountant-reviewed
— reviewed as general reference material by a named licensed practitioner.
Needs update
— flagged for review.
Deprecated
— do not use for current work.
NameDomainJurisdictionStatus
Estonia Tax Optimization

Use this skill whenever asked about reducing tax in Estonia, tax plann…

Tax OptimizationEstoniaSource-cited draft

Showing 1–48 of 48 skills

Licensed accountant? Help build your country's tax rules.

1754 open skills across 242 jurisdictions. Verified by a licensed accountant in 20 countries. Download your country's workbook, review in Excel, get named on the site and in our MCP integrations.

20 jurisdictions with a lead verifier · 222 open for contributors

GLOBAL

36 skills · Looking for contributors

Australia

14 skills · Looking for contributors

Germany

11 skills · Looking for contributors

Japan

10 skills · Looking for contributors

US Federal

22 skills · Lead: Amir Pelinkovic · 9 verified

El Salvador Tax Optimization

Use this skill whenever asked about reducing tax in El Salvador, tax p…

Tax OptimizationEl SalvadorSource-cited draft
singapore-tax-optimization

Use this skill when advising on LEGAL tax minimization strategies for …

Tax OptimizationSingaporeSource-cited draft
france-tax-optimization

Use this skill whenever asked about reducing tax in France, tax planni…

Tax OptimizationFranceSource-cited draft
australia-tax-optimization

Use this skill when advising on LEGAL tax minimization strategies for …

Tax OptimizationAustraliaSource-cited draft
Dominican Republic Tax Optimization

Use this skill whenever asked about reducing tax in the Dominican Repu…

Tax OptimizationDominican RepublicSource-cited draft
Albania Tax Optimization

Use this skill whenever asked about reducing tax in Albania, tax plann…

Tax OptimizationAlbaniaSource-cited draft
Croatia Tax Optimization

Use this skill whenever asked about reducing tax in Croatia, tax plann…

Tax OptimizationCroatiaSource-cited draft
Kosovo Tax Optimization

Use this skill whenever asked about reducing tax in Kosovo, tax planni…

Tax OptimizationKosovoSource-cited draft
Luxembourg Tax Optimization

Use this skill whenever asked about reducing tax in Luxembourg, tax pl…

Tax OptimizationLuxembourgSource-cited draft
Bulgaria Tax Optimization

Use this skill whenever asked about reducing tax in Bulgaria, tax plan…

Tax OptimizationBulgariaSource-cited draft
japan-tax-optimization

Use this skill when advising on LEGAL tax minimization strategies for …

Tax OptimizationJapanSource-cited draft
Serbia Tax Optimization

Use this skill whenever asked about reducing tax in Serbia, tax planni…

Tax OptimizationSerbiaSource-cited draft
tax-residency-planning

Personal tax residency rules, the 183-day rule, digital nomad visas, e…

Tax OptimizationInternational / OtherSource-cited draft
ma-tax-optimization

Use this skill whenever asked about legitimate (legal) tax optimizatio…

Tax OptimizationMoroccoSource-cited draft
germany-tax-optimization

Use this skill whenever asked about reducing tax in Germany, tax plann…

Tax OptimizationGermanySource-cited draft
Uzbekistan Tax Optimization

Use this skill whenever asked about reducing tax in Uzbekistan, tax pl…

Tax OptimizationUzbekistanSource-cited draft
tanzania-tax-optimization

Tanzania (Mainland) tax-optimization and statutory reliefs — CIT reduc…

Tax OptimizationTanzaniaAccountant-verified
canada-tax-optimization

Use this skill when advising on LEGAL tax minimization strategies for …

Tax OptimizationCanadaAccountant-verified
Armenia Tax Optimization

Use this skill whenever asked about reducing tax in Armenia, tax plann…

Tax OptimizationArmeniaSource-cited draft
id-tax-optimization

Use this skill whenever asked about Indonesian tax planning, regime se…

Tax OptimizationIndonesia9/12 facts verified
Bosnia and Herzegovina Tax Optimization

Use this skill whenever asked about reducing tax in Bosnia and Herzego…

Tax OptimizationBosnia and HerzegovinaSource-cited draft
Costa Rica Tax Optimization

Use this skill whenever asked about reducing tax in Costa Rica, tax pl…

Tax OptimizationCosta RicaSource-cited draft
North Macedonia Tax Optimization

Use this skill whenever asked about reducing tax in North Macedonia, t…

Tax OptimizationNorth MacedoniaSource-cited draft
Dominican Republic Special Tax Regimes (Free Zones, Tourism, Renewables)

Dominican Republic Special Tax Regimes (Free Zones, Tourism, Renewable…

Tax OptimizationDominican RepublicAccountant-verified
italy-tax-optimization

Use this skill whenever asked about reducing tax in Italy, tax plannin…

Tax OptimizationItalySource-cited draft
Belarus Tax Optimization

Use this skill whenever asked about reducing tax in Belarus, tax plann…

Tax OptimizationBelarusSource-cited draft
Slovenia Tax Optimization

Use this skill whenever asked about reducing tax in Slovenia, tax plan…

Tax OptimizationSloveniaSource-cited draft
Bolivia Tax Optimization

Use this skill whenever asked about reducing tax in Bolivia, tax plann…

Tax OptimizationBoliviaSource-cited draft
Montenegro Tax Optimization

Use this skill whenever asked about reducing tax in Montenegro, tax pl…

Tax OptimizationMontenegroSource-cited draft
netherlands-tax-optimization

Use this skill whenever asked about reducing tax in the Netherlands, t…

Tax OptimizationNetherlandsSource-cited draft
uk-tax-optimization

Use this skill whenever asked about reducing tax in the UK, tax planni…

Tax OptimizationUnited KingdomAccountant-verified
Latvia Tax Optimization

Use this skill whenever asked about reducing tax in Latvia, tax planni…

Tax OptimizationLatviaSource-cited draft
spain-tax-optimization

Use this skill whenever asked about reducing tax in Spain, tax plannin…

Tax OptimizationSpainSource-cited draft
Georgia Tax Optimization

Use this skill whenever asked about reducing tax in Georgia (country),…

Tax OptimizationGeorgiaSource-cited draft
ua-tax-optimization

Use this skill whenever asked about legal tax optimization or tax plan…

Tax OptimizationUkraineSource-cited draft
eg-tax-optimization

Use this skill whenever asked about legitimate tax optimization, tax p…

Tax OptimizationEgyptSource-cited draft
india-tax-optimization

Use this skill when advising on LEGAL tax minimization strategies for …

Tax OptimizationIndiaAccountant-verified
Venezuela Tax Optimization

Use this skill whenever asked about reducing tax in Venezuela, tax pla…

Tax OptimizationVenezuelaAccountant-verified
Iceland Tax Optimization

Use this skill whenever asked about reducing tax in Iceland, tax plann…

Tax OptimizationIcelandSource-cited draft
Cyprus Tax Optimization

Use this skill whenever asked about reducing tax in Cyprus, tax planni…

Tax OptimizationCyprusAccountant-verified
Ecuador Tax Optimization

Use this skill whenever asked about reducing tax in Ecuador, tax plann…

Tax OptimizationEcuadorSource-cited draft
Moldova Tax Optimization

Use this skill whenever asked about reducing tax in Moldova, tax plann…

Tax OptimizationMoldovaSource-cited draft
ru-tax-optimization

Use this skill whenever asked about legal tax optimization or tax plan…

Tax OptimizationRussiaSource-cited draft
portugal-tax-optimization

Utilize esta skill ao aconselhar sobre estratégias LEGAIS de minimizaç…

Tax OptimizationPortugalAccountant-verified
Azerbaijan Tax Optimization

Use this skill whenever asked about reducing tax in Azerbaijan, tax pl…

Tax OptimizationAzerbaijanSource-cited draft
Burkina Faso Tax Optimization

Use this skill for legitimate (legal) tax optimization for a self-empl…

Tax OptimizationBurkina FasoSource-cited draft
malta-tax-optimization

Use this skill whenever asked about reducing tax in Malta, tax plannin…

Tax OptimizationMaltaSource-cited draft

Canada

17 skills · Lead: Edgar Lautsyus · 11 verified

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