Better TIN Matching: Elevate Your TIN Matching Experience
The IRS TIN Matching Tool Tells You a Record Failed. TIN Comply Tells You Why — and Could Fix It.
The IRS offers free TIN matching. What it gives you is a pass/fail result, no explanation of what went wrong, no correction guidance, no audit trail, and a 96-hour lockout if duplicates slip through. For a team managing hundreds or thousands of vendor records under a January filing deadline, that's not a compliance tool — it's a starting point that still leaves most of the work to you. TIN Comply uses the same IRS matching system and adds everything the native tool doesn't have: specific result codes, automated correction outreach, EIN discovery, sanctions screening, lockout protection, full audit logging, and same-day onboarding without IRS enrollment.
What the IRS Tool Actually Gives You
The IRS TIN Matching Program is a free service that lets payers verify name and TIN combinations before filing information returns. You submit records, get back a result code, and know whether a combination passed or failed. That's the full extent of it.
What it doesn't give you: the reason a record failed, guidance on what correction to request, any record of what you submitted or what came back, a way to trigger correction outreach, sanctions screening, EIN lookup when you need the correct name, or protection against the duplicate submission lockout that takes your account offline for 96 hours. It also requires IRS enrollment — a process that demands sensitive employee personal data — and limits user access in ways that create bottlenecks for teams that need multiple people running validations.
TIN Comply submits to the same IRS TIN Matching system. The difference is everything that happens before and after that submission.
The IRS Tool vs. TIN Comply — Side by Side
| Capability | IRS TIN Matching Tool | TIN Comply |
|---|---|---|
| Result detail | Codes only | Specific result category — name mismatch, invalid TIN, wrong TIN type, SSN match, EIN match |
| Correction guidance | None | Result code determines exactly what correction to request |
| Automated W-9 outreach | None | Mismatch automatically triggers targeted W-9 correction request |
| EIN & Name Discovery | None | Look up associated name for any EIN to inform outreach |
| Sanctions screening | None | 250+ lists screened automatically on every validation |
| Duplicate protection | 3+ duplicates = 96-hr lockout | Automatic deduplication prevents lockout |
| Audit trail | No record retained | Per-vendor log — every validation, outreach, correction, revalidation timestamped |
| IRS enrollment | Required — demands sensitive employee data | Not required — same-day onboarding |
| User access | Limited, enrollment-gated | Unlimited users across your team |
| Bulk processing | 100,000 record limit, .TXT format only | Unlimited records, any file format |
| JSON REST API | None | JSON REST API for ERP-embedded real-time validation |
What Each Advantage Actually Means in Practice
Specific Result Codes
The IRS returns a numeric code that tells you a record failed. TIN Comply tells you it failed because the name doesn't match the registration for that EIN — or because the TIN doesn't exist — or because the correct TIN type is SSN not EIN. Each failure reason requires a different correction. Without knowing which one you're dealing with, outreach is a guess. With specific result codes, correction requests are targeted — and vendors who receive targeted requests respond correctly the first time at a significantly higher rate.
Automated W-9 Correction Outreach
When a TIN matching result comes back as a mismatch, TIN Comply automatically sends a W-9 correction request to the vendor — no manual follow-up, no building outreach lists, no copying result codes into emails. The outreach includes the specific correction needed based on the result code. When the corrected W-9 comes back, revalidation runs automatically. The full cycle runs without manual intervention and is documented at every step.
EIN & Name Discovery
When a name mismatch is returned, the natural next question is "what name should it be?" TIN Comply's EIN Discovery lets you look up the entity name associated with any EIN in our database — so correction outreach asks the vendor to confirm a specific name rather than asking them to figure out what went wrong. Higher response rates, fewer correction cycles, faster resolution.
Sanctions Screening on Every Validation
The IRS TIN matching tool has no sanctions component. TIN Comply screens against 250+ lists — OFAC SDN, OFAC Consolidated, FinCEN, BIS, EU Consolidated, UN Security Council — automatically on every validation call, with fuzzy matching and alias detection. No separate step, no additional workflow, no vendors that slip through because someone forgot to screen.
IRS Lockout Protection
The IRS TIN matching system locks accounts for 96 hours when three or more duplicate TIN/Name combinations are submitted in a single file — including accidental duplicates from multiple users submitting the same vendor, or batch jobs that overlap. A 96-hour lockout during Q4 validation or a B-Notice response cycle is a serious operational problem. TIN Comply automatically detects and isolates duplicates before submission. The lockout doesn't happen.
Full Validation History & Audit Trail
The IRS TIN matching tool retains no record of what was submitted or what came back. TIN Comply logs every validation, mismatch, outreach send, correction received, and revalidation result to the per-vendor record with timestamps. When a 972CG penalty arrives and abatement requires documented evidence of reasonable cause — outreach dates, correction attempts, revalidation results — the record is already built, not reconstructed retroactively under deadline.
No IRS Enrollment Required
The IRS TIN matching enrollment process requires sensitive employee personal data and creates bottlenecks for organizations that need multiple team members running validations. TIN Comply requires no IRS enrollment — unlimited users, same-day onboarding. AP, Tax, Compliance, and Procurement can all access validations and audit trails from day one without enrollment delays or personal data requirements.
API Integration
TIN Comply's REST API embeds validation directly in ERP onboarding workflows, payment authorization systems, and marketplace seller registration flows — so validation runs at the point of data entry, before bad data is written to the vendor master, not after it's already in a filed return.
The Compliance Calendar — Where Each Advantage Applies
| Time | What's Happening | TIN Comply Advantage |
|---|---|---|
| Year-round | New vendors onboarded | API validation at onboarding — mismatches caught before record created |
| Early October | Q4 bulk validation run | Unlimited records, any format, results within the hour, no lockout risk |
| October – November | Exception correction campaigns | Automated outreach with specific result codes — higher correction rates |
| November – December | Corrected W-9s received | Automatic revalidation — records update only on confirmed match |
| January | 1099 filing | IRS-confirmed name/TIN combinations — fewer CP2100 notices |
| Spring CP2100 | B-Notice response | Per-vendor history supports First vs. Second B-Notice determination |
| 972CG response | Penalty abatement | Complete outreach and revalidation record already built |
Ready to See the Difference?
TIN Matching With Everything the IRS Tool Is Missing
Specific result codes. Automated W-9 correction outreach. EIN Discovery. Sanctions screening on every validation. Duplicate lockout protection. Full audit trail. Unlimited users. No IRS enrollment. Portal, bulk, and API — all included from day one.
Other white papers
- EIN Discovery: Accurate EIN & Name Lookups
- Comprehensive Sanctions Screening for Every Industry
- Advanced API Integration: Transform Your Compliance Workflow
- What TIN Comply Offers
- Better BULK TIN Matching: No Limits. No Reformatting. No Duplicate Hassles.
- Better TIN Matching: Elevate Your TIN Matching Experience
- Comprehensive Validation Solutions