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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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Curacao Tax Overview

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

Income TaxCuraçaoSource-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

AL Sales Tax

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

VAT / GSTAlabamaSource-cited draft
Curacao Corporate Income Tax

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

Income TaxCuraçaoSource-cited draft
FR Capital Gains

French capital gains, investment income, and equity compensation tax r…

Income TaxFranceSource-cited draft
Equatorial Guinea VAT / GST

Source-cited draft: vat / gst for Equatorial Guinea (tax year 2025) — …

VAT / GSTEquatorial GuineaSource-cited draft
WI Income Tax

Whenever asked about Wisconsin individual income tax, Wisconsin Form 1…

Income TaxWisconsinSource-cited draft
Guinea-Bissau Personal Income Tax

Source-cited draft: personal income tax for Guinea-Bissau (tax year 20…

Income TaxGuinea-BissauSource-cited draft
Guinea Company Formation & Entity Choice

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

Company FormationGuineaSource-cited draft
Liberia Corporate Income Tax

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

Income TaxLiberiaSource-cited draft
NV Sales Tax

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

VAT / GSTNevadaSource-cited draft
Guinea Corporate Income Tax

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

Income TaxGuineaSource-cited draft
AT Income Tax

Whenever asked about Austrian income tax (Einkommensteuer) for self-em…

Income TaxAustriaSource-cited draft
Equatorial Guinea Payroll & Social Contributions

Source-cited draft: payroll & social contributions for Equatorial Guin…

PayrollEquatorial GuineaSource-cited draft
Mexico Transfer Pricing

Whenever asked about Mexico transfer pricing rules, documentation requ…

Transfer PricingMexicoSource-cited draft
Lesotho Tax Overview

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

Income TaxLesothoSource-cited draft
Liberia VAT / GST

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

VAT / GSTLiberiaSource-cited draft
Kyrgyzstan VAT / GST

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

VAT / GSTKyrgyzstanSource-cited draft
Equatorial Guinea Company Formation & Entity Choice

Source-cited draft: company formation & entity choice for Equatorial G…

Company FormationEquatorial GuineaSource-cited draft
VT Income Tax

Whenever asked about Vermont individual income tax, Vermont Form IN-11…

Income TaxVermontSource-cited draft
Equatorial Guinea Personal Income Tax

Source-cited draft: personal income tax for Equatorial Guinea (tax yea…

Income TaxEquatorial GuineaSource-cited draft
IE Freelance Intake

When a user asks for help preparing an Irish tax return AND mentions f…

Income TaxIrelandSource-cited draft
FI Prepayments

Whenever asked about Finland prepayment tax (ennakkovero) for self-emp…

Income TaxFinlandSource-cited draft
BE Capital Gains

Belgium capital gains: generally exempt for private investors on share…

Income TaxBelgiumSource-cited draft
Suriname Personal Income Tax

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

Income TaxSurinameSource-cited draft
Djibouti VAT / GST

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

VAT / GSTDjiboutiSource-cited draft
Optimisation Advisor

Intelligence skill that identifies tax savings opportunities after the…

—GLOBALSource-cited draft
South Sudan VAT / GST

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

VAT / GSTSouth SudanSource-cited draft
Djibouti Tax Overview

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

Income TaxDjiboutiSource-cited draft
Bhutan Personal Income Tax

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

Income TaxBhutanSource-cited draft
Deadline Engine

Intelligence skill that generates a personalised filing calendar based…

—GLOBALSource-cited draft
San Marino Tax Overview

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

Income TaxSan MarinoSource-cited draft
Sudan Payroll & Social Contributions

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

PayrollSudanSource-cited draft
Sierra Leone Corporate Income Tax

Source-cited draft: corporate income tax for Sierra Leone (tax year 20…

Income TaxSierra LeoneSource-cited draft
Slovakia Pit

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

Income TaxSlovakiaSource-cited draft
Djibouti Payroll & Social Contributions

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

PayrollDjiboutiSource-cited draft
Djibouti Personal Income Tax

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

Income TaxDjiboutiSource-cited draft
Croatia Personal Income Tax -- Individuals & Self-Employed

Whenever asked about Croatia (Hrvatska) personal income tax (porez na …

Income TaxCroatiaSource-cited draft
Sudan Company Formation & Entity Choice

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

Company FormationSudanSource-cited draft
NL Tax Objection

Whenever asked about Dutch tax objection procedures (bezwaar) or tax c…

—NetherlandsSource-cited draft
Sierra Leone VAT / GST

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

VAT / GSTSierra LeoneSource-cited draft
Djibouti Corporate Income Tax

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

Income TaxDjiboutiSource-cited draft
Suriname Payroll & Social Contributions

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

PayrollSurinameSource-cited draft
Somalia Corporate Income Tax

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

Income TaxSomaliaSource-cited draft
Global Payment Processors

Classification rules for payment processor transactions — the number o…

—GLOBALSource-cited draft
CL Income Tax

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

Income TaxChileSource-cited draft
Iceland Social Security Contributions and Mandatory Pension

Whenever asked about Iceland (Ísland) social security contributions, p…

PayrollIcelandSource-cited draft
DK Capital Gains

Denmark capital gains tax: 27%/42% on share gains, progression thresho…

Income TaxDenmarkSource-cited draft
AU Rental Property

Whenever asked about Australian rental property income and deductions.…

Income TaxAustraliaSource-cited draft
Gambia VAT / GST

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

VAT / GSTGambiaSource-cited draft
San Marino Payroll & Social Contributions

Source-cited draft: payroll & social contributions for San Marino (tax…

PayrollSan MarinoSource-cited draft

Dominican Republic

22 Guides · Partner: Miguel Lantigua

Guides awaiting reviewBecome a Partner