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OpenAPIReference & guides5 tools
US Taxability Matrix Guide
How the Streamlined Sales Tax taxability matrix is organised, where its official viewers are, the seller liability-relief wording with its date rule, and the steps the sources describe
Unify Dynamics LLC
Tools5read-only
Sign-inNoneno account, no key
Data keptNoneprocessed in memory
PriceFreeoptional Pro limits
StatusLiveMCP + REST
Works withMCP · RESTany agent
Try asking
Real questions, and the tools your agent calls to answer them.
What is the Streamlined taxability matrix and how is it organised?
Tools called
explain_matrixWhere can I look up how a Streamlined member state treats a product?
Tools called
viewer_linksWhich states does the Streamlined taxability matrix cover?
Tools called
member_statesA state notified a change to its matrix on 15 September 2026: until when is a seller relieved of liability for relying on the prior version?
Tools called
liability_relief_ruleWhat is the path to confirm whether a member state taxes a product before charging tax?
Tools called
how_to_confirmviewer_linksAbout
A guide to the State Taxability Matrix published by the Streamlined Sales Tax Governing Board: what the page says the matrix identifies (the definitions and tax administration practices adopted by the Governing Board that each member state must follow), how its Library of Definitions is divided (Section A administrative definitions, Section B sales tax holidays, Section C product definitions), and where the official online viewers, the updates library and the user guide are. It lists the Streamlined member states the matrix relates to (from the same publisher's exemptions page), quotes the liability-relief wording for sellers who relied on the prior version of the matrix and computes the date until which that wording gives relief after a change notice, and describes the path the sources give for confirming how a state treats a product. It does NOT return any state's taxability of any product: the matrix viewers were not read and no programmatic access to the matrix data was verified, so this stays a guide. Every answer names its source, the date read and a verification level. General information only, not tax advice.
Sources: Reference data from official sources (streamlinedsalestax.org); every answer states its source, date and validity period.
Privacy
The publisher, Unify Dynamics LLC, states that tool inputs are processed in memory and not retained.
Data not collectedNo account, no profile, no stored prompts or results.
What it can do
5 tools, grouped by job. Every one is read-only or compute-only.
- Explain matrixDescribe what the Streamlined taxability matrix identifies and how its Library of Definitions and Tax Administration Practices are organised,…
- Viewer linksReturn the official viewer, updates library and user guide links of the taxability matrix as printed on the SSTGB page.
- Member statesList the 24 Streamlined Sales Tax member states (23 full and Tennessee associate) that the matrix's definitions relate to.
- Liability relief ruleQuote the seller liability-relief wording and compute the first day of the calendar month at least 30 days after a change notice, the date until…
- How to confirmDescribe the path the sources give for confirming how a member state treats a product before charging tax, each step tagged with its source.
Information
PublisherUnify Dynamics LLC
CategoryMoney & business
LanguagesEnglish
Built forUnited States
CompatibilityAny MCP client · any agent · REST
Version0.1.0
MCP endpoint
https://us-taxability-guide.connectorbay.com/mcpREST APIopenapi.json
CountryUnited States
FunctionInvoicing & tax
LayerDeep connectors
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