Advanced vendor validation & remediation

Validate TINs. Collect W-9s. Reduce vendor compliance risk.

TIN Compliance helps organizations improve taxpayer data accuracy and streamline vendor validation workflows—supporting IRS TIN/Name matching, EIN discovery, W-9 management, and sanctions screening with audit-ready records.

No forms. No tracking. Email-only requests.
Real-time IRS validation 250+ sanctions/watchlists Bulk + API automation

Powerful features

Everything you need to validate vendors and remediate mismatches—without adding manual work.

1 IRS TIN/Name Matching

Validate taxpayer data against IRS records to reduce errors, avoid B-Notices, and stay tax compliant.

2 Mismatch Detection & Reporting

Instantly identify invalid TINs, name mismatches, and non-issued results with clear status and history.

3 EIN Discovery

Find missing or incorrect EINs (or company names) to correct records without manual research.

4 Secure W-9 Requests

Send a secure link, collect signatures, track status, and store completed W-9s in one place.

5 Sanctions & OFAC Screening

Screen vendors against 250+ U.S. and global sanctions and watchlists to reduce regulatory exposure.

6 Bulk File Processing

Upload and process large files at once for high-volume validation and vendor master cleanups.

7 API + Automation

Embed validation and W-9 workflows into ERP/finance tools using a fast, simple REST API.

8 Audit Trails

Review-ready logs and reporting so you can demonstrate defensible compliance to stakeholders.

Common use cases

Team Problem Outcome
Accounts Payable Missing W-9s, duplicate vendors, mismatched taxpayer data Cleaner vendor master and reduced rework
Tax / 1099 Corrections, B-Notices, invalid payee data Fewer year-end issues and better reporting readiness
Compliance / Risk Vendor screening gaps and audit defensibility Centralized screening logs and review workflows
IT / Systems Manual processes, disconnected tools API automation and operational scale

Want a quick baseline? Request a risk assessment based on a simple vendor export (ID, name, address, and optional TIN/contact info).

What you get

  • Clear mismatch and data-quality rates (baseline + improvement targets)
  • Remediation-ready outputs for ERP updates
  • Central documentation and audit trails
  • Ongoing monitoring options to prevent file drift
  • Reporting designed for AP leadership and audit stakeholders
Bulk cleanup projects Continuous validation Audit-ready logs

Security & audit readiness

Compliance workflows require strong controls. The platform is designed to support secure handling of sensitive vendor data with traceability and reporting for internal oversight.

Encryption

Secure data handling with encryption in transit and at rest where applicable.

Access Controls

Centralized user access and role-based workflows to support internal governance.

Audit Trails

Validation history, status tracking, and reporting designed for defensible compliance.

Privacy-minded UX

Workflows designed to reduce unnecessary data exposure while maintaining compliance controls.

For a detailed security overview (architecture, controls, and data handling), email to request it.

Contact TIN Compliance

Click a button below to email.

Disclaimer: This site provides general information only and does not constitute legal, tax, or compliance advice.