Where it fitsCompany tax department › Indirect Tax / VAT / GST
Open tax projects for companies and tax authorities. One list.
Pick a category, narrow by jurisdiction or tax area, or just search. Open any entry for the details. Empty categories are marked, so you can see where the gaps are.
158 projects
Tax engines
39 projectsRules-as-code that compute liabilities, returns and reforms.
Where it fitsCompany tax department › Direct & International TaxCompany tax department › Tax Policy & Stakeholder EngagementTax authority › Policy, Legislation & Revenue Analysis
Where it fitsCompany tax department › Tax Policy & Stakeholder EngagementTax authority › Policy, Legislation & Revenue Analysis
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Licence unknown: we found no licence we could recognise. Check with the maintainers before you reuse the code.
Where it fitsCompany tax department › Tax Policy & Stakeholder EngagementTax authority › Policy, Legislation & Revenue Analysis
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Where it fitsTax authority › Taxpayer Services
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Where it fitsTax authority › Taxpayer Services
Licence unknown: we found no licence we could recognise. Check with the maintainers before you reuse the code.
Where it fitsCompany tax department › Direct & International TaxCompany tax department › Tax Policy & Stakeholder EngagementTax authority › Policy, Legislation & Revenue Analysis
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Where it fitsCompany tax department › Tax Policy & Stakeholder EngagementTax authority › Policy, Legislation & Revenue Analysis
Where it fitsCompany tax department › Direct & International TaxTax authority › Policy, Legislation & Revenue Analysis
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Licence unknown: we found no licence we could recognise. Check with the maintainers before you reuse the code.
Where it fitsCompany tax department › Tax Policy & Stakeholder EngagementTax authority › Policy, Legislation & Revenue Analysis
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Licence unknown: we found no licence we could recognise. Check with the maintainers before you reuse the code.
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Where it fitsCompany tax department › Tax Policy & Stakeholder EngagementTax authority › Policy, Legislation & Revenue Analysis
Where it fitsCompany tax department › Tax Policy & Stakeholder EngagementTax authority › Policy, Legislation & Revenue Analysis
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Where it fitsCompany tax department › Tax Policy & Stakeholder EngagementTax authority › Policy, Legislation & Revenue Analysis
Where it fitsCompany tax department › Tax Policy & Stakeholder EngagementTax authority › Policy, Legislation & Revenue Analysis
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Where it fitsCompany tax department › Employment & Payroll TaxCompany tax department › Tax Policy & Stakeholder EngagementTax authority › Policy, Legislation & Revenue Analysis
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Licence unknown: we found no licence we could recognise. Check with the maintainers before you reuse the code.
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Licence unknown: we found no licence we could recognise. Check with the maintainers before you reuse the code.
Agent skills
3 projectsPackaged tax expertise an AI agent can follow, step by cited step.
Where it fitsCompany tax department › Tax Technology, Data & Transformation
Where it fitsCompany tax department › Tax Technology, Data & TransformationTax authority › Policy, Legislation & Revenue Analysis
Where it fitsCompany tax department › Indirect Tax / VAT / GST
MCP
13 projectsOpen connectors and protocols between agents and legislation, case law and ledgers.
Where it fitsCompany tax department › Indirect Tax / VAT / GSTCompany tax department › Tax Technology, Data & Transformation
Where it fitsCompany tax department › Controversy & Tax RiskCompany tax department › Tax Technology, Data & TransformationTax authority › Taxpayer Services
Where it fitsCompany tax department › Indirect Tax / VAT / GSTCompany tax department › Tax Technology, Data & TransformationTax authority › Taxpayer Services
Where it fitsTax authority › Taxpayer Services
Licence unknown: we found no licence we could recognise. Check with the maintainers before you reuse the code.
Where it fitsCompany tax department › Indirect Tax / VAT / GSTCompany tax department › Tax Technology, Data & Transformation
Where it fitsCompany tax department › Tax Technology, Data & TransformationTax authority › Taxpayer Services
Licence unknown: we found no licence we could recognise. Check with the maintainers before you reuse the code.
Where it fitsCompany tax department › Tax Technology, Data & TransformationTax authority › Data, IT & Analytics
Where it fitsCompany tax department › Tax Technology, Data & Transformation
Where it fitsCompany tax department › Tax Technology, Data & Transformation
Where it fitsCompany tax department › Employment & Payroll Tax
Where it fitsCompany tax department › Tax Technology, Data & Transformation
Where it fitsCompany tax department › Indirect Tax / VAT / GSTCompany tax department › Tax Technology, Data & Transformation
Where it fitsCompany tax department › Indirect Tax / VAT / GSTCompany tax department › Tax Technology, Data & Transformation
Licence unknown: we found no licence we could recognise. Check with the maintainers before you reuse the code.
Plugins
1 projectBundles of skills, tools and agents, installable in one go.
Where it fitsCompany tax department › Tax Technology, Data & Transformation
APIs
54 projectsValidation, rates, filings and registries you can call directly.
Where it fitsCompany tax department › Employment & Payroll Tax
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Direct & International Tax
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GSTTax authority › E-invoicing & Real-time Reporting
Where it fitsTax authority › Taxpayer Services
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GSTTax authority › E-invoicing & Real-time Reporting
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GSTTax authority › E-invoicing & Real-time Reporting
Licence unknown: we found no licence we could recognise. Check with the maintainers before you reuse the code.
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GSTTax authority › E-invoicing & Real-time Reporting
Licence unknown: we found no licence we could recognise. Check with the maintainers before you reuse the code.
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GSTTax authority › Registration
Where it fitsCompany tax department › Tax Technology, Data & TransformationTax authority › Data, IT & Analytics
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Licence unknown: we found no licence we could recognise. Check with the maintainers before you reuse the code.
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Direct & International Tax
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Tax calendars
1 projectFiling and payment deadlines as open, machine-readable feeds.
Where it fitsCompany tax department › Tax Technology, Data & Transformation
Automations
21 projectsReusable workflows for provisions, reconciliations and compliance runs.
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Controversy & Tax RiskCompany tax department › Tax Technology, Data & TransformationTax authority › Compliance Risk & AuditTax authority › Data, IT & Analytics
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Controversy & Tax RiskCompany tax department › Tax Technology, Data & TransformationTax authority › Compliance Risk & AuditTax authority › Data, IT & Analytics
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Employment & Payroll Tax
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Controversy & Tax RiskCompany tax department › Tax Technology, Data & TransformationTax authority › Compliance Risk & AuditTax authority › Data, IT & Analytics
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Controversy & Tax RiskCompany tax department › Tax Technology, Data & TransformationTax authority › Compliance Risk & AuditTax authority › Data, IT & Analytics
Where it fitsCompany tax department › Controversy & Tax RiskTax authority › Compliance Risk & Audit
Where it fitsTax authority › Taxpayer Services
Licence unknown: we found no licence we could recognise. Check with the maintainers before you reuse the code.
Where it fitsTax authority › Taxpayer Services
Licence unknown: we found no licence we could recognise. Check with the maintainers before you reuse the code.
Where it fitsCompany tax department › Tax Technology, Data & Transformation
Licence unknown: we found no licence we could recognise. Check with the maintainers before you reuse the code.
Where it fitsCompany tax department › Tax Technology, Data & Transformation
Licence unknown: we found no licence we could recognise. Check with the maintainers before you reuse the code.
Where it fitsTax authority › Compliance Risk & Audit
Where it fitsCompany tax department › Tax Technology, Data & Transformation
Where it fitsCompany tax department › Tax Technology, Data & Transformation
Licence unknown: we found no licence we could recognise. Check with the maintainers before you reuse the code.
Tax datasets
15 projectsRates, treaties and statistics, open and versioned.
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Where it fitsCompany tax department › Indirect Tax / VAT / GSTCompany tax department › Tax Technology, Data & Transformation
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Licence unknown: we found no licence we could recognise. Check with the maintainers before you reuse the code.
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Licence unknown: we found no licence we could recognise. Check with the maintainers before you reuse the code.
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Licence unknown: we found no licence we could recognise. Check with the maintainers before you reuse the code.
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Licence unknown: we found no licence we could recognise. Check with the maintainers before you reuse the code.
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Where it fitsCompany tax department › Tax Technology, Data & Transformation
Where it fitsTax authority › Policy, Legislation & Revenue Analysis
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Licence unknown: we found no licence we could recognise. Check with the maintainers before you reuse the code.
Where it fitsCompany tax department › Indirect Tax / VAT / GST
Legal datasets
5 projectsStatute, case law and guidance your agents can cite.
Where it fitsCompany tax department › Controversy & Tax RiskTax authority › Taxpayer Services
Where it fitsCompany tax department › Controversy & Tax RiskTax authority › Taxpayer Services
Where it fitsCompany tax department › Controversy & Tax Risk
Where it fitsCompany tax department › Controversy & Tax RiskTax authority › Disputes & Appeals
Where it fitsCompany tax department › Controversy & Tax RiskTax authority › Disputes & Appeals
Benchmarks
3 projectsEvals that show whether a model reasons about tax, or guesses.
Where it fitsCompany tax department › Tax Technology, Data & TransformationTax authority › Data, IT & Analytics
Where it fitsCompany tax department › Tax Technology, Data & TransformationTax authority › Data, IT & Analytics
Where it fitsCompany tax department › Tax Technology, Data & TransformationTax authority › Data, IT & Analytics
Models
3 projectsOpen AI models trained or tuned for tax text.
Where it fitsCompany tax department › Tax Technology, Data & TransformationTax authority › Data, IT & Analytics
Where it fitsCompany tax department › Tax Technology, Data & TransformationTax authority › Data, IT & Analytics
Where it fitsCompany tax department › Tax Technology, Data & TransformationTax authority › Data, IT & Analytics
Licence: CC BY-NC 4.0. Check its terms before you reuse it.
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