ExemptLink
Dated provenance

Every rule needs
a source and a context.

Jurisdiction, form, dates, assumptions and interpretation status remain visible. These references are informational; tax-owner review remains necessary.

Research-stage concept · illustrative product preview

EXEMPTLINK / EVIDENCE AND SOURCESCONCEPT PREVIEW
Every rule has provenanceA form field points to official source, revision and review date.Every rule has provenanceDEMO / ILLUSTRATIVE · concept previewCertificate fieldLegal entity / state / dateOriginal document spanSource registerOfficial URLForm revision / source updateAccessed date is separateReviewer and interpretation statusUnknown dates stay unknown
Illustrative mobile scene
Jurisdiction / form
Original source
Access and review dates

Every rule has provenance

Source metadata list with external links.

Human review required
DEMO — SYNTHETIC DATAFinite sequence · reviewed states
Source register

Read the original.
Keep the limits beside it.

Research access date: October 14, 2026. Named legal reviewers have not been appointed; interpretation remains subject to tax-owner/counsel review.

New York

TB-ST-240 / certificate guidance

Open primary source

Acceptance, association, blanket-certificate context and retention.

Source date
Issued 2010; page updated Jan 21, 2026
Accessed
Oct 14, 2026
Interpretation
Pending context-specific review

Interpretation requires selected form and transaction facts.

New York

ST-120 / resale certificate instructions

Open primary source

Review form fields and receipt/signature context.

Source date
Revision 1/26
Accessed
Oct 14, 2026
Interpretation
Pending context-specific review

Source issue/update and access dates are separate.

Florida

Annual Resale Certificate guidance

Open primary source

Annual certificate period and permitted authorization alternatives.

Source date
Update date not supplied in research
Accessed
Oct 14, 2026
Interpretation
Pending context-specific review

No signature requirement is invented for this annual certificate.

US / general

IRS business recordkeeping

Open primary source

General supporting-record context only.

Source date
Update date not supplied in research
Accessed
Oct 14, 2026
Interpretation
Pending context-specific review

Does not establish state sales-tax exemption validity.

Vendor / overlap

Avalara ECM capabilities

Open primary source

Existing linkage, collection, validation and audit-trail overlap.

Source date
Capability page reviewed Oct 14, 2026
Accessed
Oct 14, 2026
Interpretation
Pending context-specific review

Vendor copy establishes overlap, not demand or superiority.

The corrected assumption

A date warning
is not a rule.

The NY demo’s imported Mar 31, 2026 expiry field is unverified source-system metadata. The fictional accountant rejects a universal-expiry interpretation, while retaining the genuine entity/state mismatch.

The separate Florida annual-resale fixture uses Dec 31, 2025 as the prior-year certificate expiry. Its state/form context and alternative authorization question remain explicit.

Inspect both example paths
A bounded first step

Start with a sample.
Find out what it adds.

One state. 100 historical exempt sales. One selected workflow. A decision grounded in your tax owner’s review.

Discuss a pilot Proposed pilot · no records required to start