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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 · 300 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
br-indirect-tax

Use this skill whenever asked about Brazilian indirect tax obligations…

VAT / GSTBrazilSource-cited draft

Showing 151–200 of 300 skills

PreviousPage 4 of 6Next

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

south-africa-vat

Use this skill whenever asked to prepare, review, or classify transact…

VAT / GSTSouth AfricaAccountant-verified
Iraq VAT / GST

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

VAT / GSTIraqSource-cited draft
senegal-vat

Use this skill whenever asked to prepare, review, or classify transact…

VAT / GSTSenegalSource-cited draft
bosnia-vat

Use this skill whenever asked to prepare, review, or classify transact…

VAT / GSTBosnia and HerzegovinaSource-cited draft
Bermuda VAT / GST

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

VAT / GSTBermudaSource-cited draft
serbia-vat

Use this skill whenever asked to prepare, review, or advise on a Serbi…

VAT / GSTSerbiaSource-cited draft
ro-vat-return

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

VAT / GSTRomaniaSource-cited draft
sg-gst-return

This skill has been consolidated. See singapore-gst.md in this directo…

VAT / GSTSingaporeSource-cited draft
nc-sales-tax

Use this skill whenever asked about North Carolina sales and use tax. …

VAT / GSTNorth CarolinaSource-cited draft
Brunei VAT / GST

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

VAT / GSTBruneiSource-cited draft
cambodia-vat

Use this skill whenever asked to prepare, review, or classify transact…

VAT / GSTCambodiaSource-cited draft
cameroon-vat

Use this skill whenever asked to prepare, review, or classify transact…

VAT / GSTCameroon24/30 facts verified
south-korea-vat

Use this skill whenever asked to prepare, review, or classify transact…

VAT / GSTSouth KoreaSource-cited draft
chile-iva

Use this skill whenever asked to prepare, review, or classify transact…

VAT / GSTChileSource-cited draft
pl-vat-return

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

VAT / GSTPolandSource-cited draft
moldova-vat

Use this skill whenever asked to prepare, review, or classify transact…

VAT / GSTMoldovaSource-cited draft
mn-sales-tax

Use this skill whenever asked about Minnesota sales and use tax. Trigg…

VAT / GSTMinnesotaSource-cited draft
co-vat-return

Colombian VAT return (IVA -- Impuesto sobre las Ventas) for self-emplo…

VAT / GSTColombiaSource-cited draft
colombia-iva

Use this skill whenever asked to prepare, review, or classify transact…

VAT / GSTColombiaSource-cited draft
ohio-sales-tax

Use this skill whenever asked about Ohio sales and use tax, ODT filing…

VAT / GSTOhioSource-cited draft
costa-rica-iva

Use this skill whenever asked to prepare, review, or classify transact…

VAT / GSTCosta RicaSource-cited draft
oklahoma-sales-tax

Use this skill whenever asked about Oklahoma sales tax, Oklahoma use t…

VAT / GSTOklahomaSource-cited draft
dk-vat-return

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

VAT / GSTDenmarkSource-cited draft
wy-sales-tax

Use this skill whenever asked about Wyoming sales tax, Wyoming use tax…

VAT / GSTWyomingSource-cited draft
estonia-vat-return

Use this skill whenever asked to prepare, review, or classify transact…

VAT / GSTEstoniaSource-cited draft
fiji-vat

Use this skill whenever asked to prepare, review, or classify transact…

VAT / GSTFijiSource-cited draft
Myanmar VAT / GST

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

VAT / GSTMyanmarSource-cited draft
ethiopia-vat

Use this skill whenever asked to prepare, review, or classify transact…

VAT / GSTEthiopiaSource-cited draft
Hong Kong VAT / GST

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

VAT / GSTHong KongSource-cited draft
eu-vat-base

Load this skill as a shared reference whenever working on VAT for any …

VAT / GSTEU (general)Source-cited draft
Kuwait VAT / GST

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

VAT / GSTKuwaitSource-cited draft
finland-vat-return

Use this skill whenever asked to prepare, review, or classify transact…

VAT / GSTFinlandSource-cited draft
dominican-republic-itbis

Use this skill whenever asked to prepare, review, or classify transact…

VAT / GSTDominican Republic9/30 facts verified
utah-sales-tax

Use this skill whenever asked about Utah sales tax, Utah use tax, USTC…

VAT / GSTUtahSource-cited draft
wyoming-sales-tax

Use this skill whenever asked about Wyoming sales tax, Wyoming use tax…

VAT / GSTWyomingSource-cited draft
guatemala-iva

Use this skill whenever asked to prepare, review, or classify transact…

VAT / GSTGuatemalaSource-cited draft
Cayman Islands VAT / GST

Source-cited draft: vat / gst for Cayman Islands (tax year 2025) — rat…

VAT / GSTCayman IslandsSource-cited draft
Qatar VAT / GST

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

VAT / GSTQatarSource-cited draft
gr-vat-return

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

VAT / GSTGreeceSource-cited draft
kenya-vat

Use this skill whenever asked to prepare, review, or classify transact…

VAT / GSTKenyaSource-cited draft
ct-sales-tax

Use this skill whenever asked about Connecticut sales and use tax, lux…

VAT / GSTConnecticutSource-cited draft
in-gst-return

This skill has been consolidated. See india-gst.md in this directory.

VAT / GSTIndiaSource-cited draft
ar-sales-tax

Use this skill whenever asked about Arkansas sales and use tax. Trigge…

VAT / GSTArkansasSource-cited draft
ky-sales-tax

Use this skill whenever asked about Kentucky sales and use tax. Trigge…

VAT / GSTKentuckySource-cited draft
co-sales-tax

Use this skill whenever asked about Colorado sales and use tax, home-r…

VAT / GSTColoradoSource-cited draft
ia-sales-tax

Use this skill whenever asked about Iowa sales and use tax. Trigger on…

VAT / GSTIowaSource-cited draft
mi-sales-tax

Use this skill whenever asked about Michigan sales and use tax. Trigge…

VAT / GSTMichiganSource-cited draft
isle-of-man-vat

Use this skill whenever asked about Isle of Man VAT, VAT registration,…

VAT / GSTIMSource-cited draft
md-sales-tax

Use this skill whenever asked about Maryland sales and use tax. Trigge…

VAT / GSTMarylandSource-cited draft

Canada

16 skills · Lead: Edgar Lautsyus · 11 verified

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