Exemption certificate compliance you can defend in an audit.

SolidCert checks every certificate against the rules of the state that issued it, then flags the ones that are expired, incomplete, or invalid — so nothing surprises you when the auditor calls.

Resale · Manufacturing · Agricultural · SST · MTC forms · 45+ states

Most companies don't think about exemption certificates until an audit. By then the expired and missing ones are already assessments. We built SolidCert so you find them first.

Why we built SolidCert

How it works

From a shared drive full of scans
to a file you can hand an auditor.

Dashboard

Every account
in one place.

Each client, each batch, and the valid, review, and invalid counts, updated the moment a run finishes. No more spreadsheets tracking your other spreadsheets.

solidcert.io/dashboard
Clients
14
Processed
18,742
Valid Rate
71%
Pending
1,204
ClientTotalValidReviewStatus
Adler Industrial Supply3,412 2,618591 Complete
Brennan-Hollis Distributors1,855 1,240441 Complete
Donnelly & Fitch Group4,100 Processing

Validation

Checked against the
right state's rules.

A Texas resale certificate and a New York ST-120 don't follow the same rules, so SolidCert checks each one against the state that issued it. Every document comes back with a status and a specific reason code, not a guess.

solidcert.io — Adler Industrial, Batch 3
Valid
2,618
TX-01-339 — Resale
NY-ST-120 — Resale
FL-DR-97 — Agri.
SST-F0003 — Resale
Review
591
STATE_MISMATCH
MISSING_EIN
NEAR_EXPIRY
LOW_CONFIDENCE
Invalid
203
CERT_EXPIRED
NO_SIGNATURE
CERT_EXPIRED
INVALID_FORM

Output

Output your team
can actually use.

A three-tab Excel workbook, split into valid, needs review, and invalid, with the reason code, customer, form type, and expiration date on every row. Sorted and ready to work, not another PDF to dig through.

SolidCert_Adler_2026.xlsx
Valid (2,618)
Review (591)
Invalid (203)
CustomerFormStateReasonExpiry
Adler IndustrialTX-01-339TXResale12/31/2027
Brennan-HollisNY-ST-120NYResale12/31/2026
Cascade Fab.SST-F0003MultiResaleOngoing
Eastern MetalIL-CRT-61ILDirect Pay06/30/2027

Ongoing Monitoring

It won't drift back
out of compliance.

After the cleanup, SolidCert keeps watching. A certificate nearing expiration, a new customer with nothing on file, a state you just started shipping into: you hear about each one before it turns into exposure.

solidcert.io — Monitoring · Adler Industrial
Last scan: May 24, 2026 Next scan: Jun 24, 2026
CustomerFormStateExpiresStatus
Adler IndustrialTX-01-339TX12/31/2027 Valid
Brennan-HollisNY-ST-120NY03/15/2026 Expiring
Eastern MetalIL-CRT-61IL01/22/2026 Expiring
Greystone Chem.CO-DR-5002CO11/30/2025 Expired
Cascade Fab.SST-F0003MultiOngoing Valid