5 Best TIN Matching Services
for 2026
At a Glance
Why TIN Matching Matters in 2026
Every business that files Form 1099 information returns is responsible for ensuring the Taxpayer Identification Numbers (TINs) on those returns are accurate. The consequences of filing with incorrect TINs are real:
- IRS penalties — Up to $310 per return for incorrect payee information, with no cap for intentional disregard.
- Backup withholding — The IRS may require you to withhold 24% of future payments to vendors with mismatched TINs.
- B-Notices — CP2100/CP2100A notices from the IRS that require you to solicit corrected TINs within a specified timeframe.
- Audit exposure — A pattern of TIN mismatches can draw additional IRS scrutiny.
TIN matching services verify name/TIN combinations before you file, catching errors proactively. The question is not whether to verify, but which service best fits your volume, budget, and compliance requirements. This guide profiles each option and helps you find the right match.
At-a-Glance Comparison
This table compares all five services on the dimensions that matter most when choosing a TIN matching provider: pricing, trial availability, bulk capacity, API access, and 1099 filing integration.
| Dimension | IRS Direct | TINCorrect | TINCheck | TINComply | Compliancely |
|---|---|---|---|---|---|
| Best For | Zero-budget, low volume | Simple, affordable IRS matching + 1099 filing | Enterprise multi-database screening | W-9 management + managed compliance | Broad KYB/KYC compliance platform |
| Pricing Model | Free | Credit-based (prepaid + subscription) | Per-check, volume-tiered | Per-check, volume-tiered | Per-check, volume-tiered |
| Per-Check Cost | $0 | Credit-based | $0.26–$0.90 | $0.22–$0.88 | $0.54–$0.79 |
| Free Trial | Unlimited (with registration) | 10 free searches, no credit card | Contact sales | 5 free browser tools | Contact sales |
| Bulk Capacity | 100K (delayed results) | 100K per batch | Bulk supported | Supported | Supported |
| REST API | No | JWT auth + Swagger docs | REST + SOAP | 10 endpoints | Available |
| 1099 Filing Ecosystem | — | BoomTax | — | — | Tax1099 |
| Time to Start | Weeks (IRS registration) | Minutes | Sales process | Varies | Sales process |
Service Profiles
TINCorrect (BoomTax) — Best for Simple, Affordable TIN Matching
TINCorrect is built by the team behind BoomTax, a 1099 e-filing platform. It is purpose-built for one job: verifying that TINs match IRS records before you file. If you want a service that is fast to set up, easy to use, and focused on what matters, TINCorrect is the place to start.
What Makes It Stand Out
- Instant start — Create an account and get 10 free searches immediately. No credit card, no sales call.
- Real-time results — Single lookups return results in seconds. No waiting.
- Bulk processing — Upload up to 100,000 records per batch via the web interface or API.
- Modern API — REST with JWT authentication, JSON responses, and clear Swagger documentation.
- Credit-based pricing — Prepaid packs and subscriptions. Pay for what you use.
- BoomTax ecosystem — Verify TINs, then file 1099s through BoomTax in a single workflow.
- Azure infrastructure — Encrypted in transit and at rest.
Best For
Small-to-midsize businesses, AP teams, and accounting firms that need reliable IRS TIN matching without the complexity or cost of a broader compliance platform. Especially strong for BoomTax 1099 filing users who want an integrated verify-then-file workflow.
Detailed comparisons: TINCorrect vs. TINCheck | TINCorrect vs. Compliancely | TINCorrect vs. TINComply
IRS TIN Matching (Direct) — Best for Zero Budget
The IRS offers a free TIN Matching Program through its e-Services portal. It is the authoritative source for name/TIN verification and the baseline against which all third-party services are measured.
What Makes It Stand Out
- Free — No cost at all, making it accessible to any organization.
- Authoritative — Results come directly from IRS records.
- Bulk uploads — Up to 100,000 records per session.
Limitations to Consider
- Browser-based interface only — no API for programmatic access.
- Interactive lookups limited to 25 TINs at a time.
- Bulk results may be delayed 24–48 hours.
- Requires IRS eServices registration, which can take several weeks to approve.
Best For
Organizations with low volume, no API requirement, and no budget for third-party services. Also useful as a secondary verification source alongside a commercial service.
TINCheck (Sovos) — Best for Enterprise Multi-Database Screening
TINCheck, owned by Sovos, is an enterprise-grade verification service that checks each TIN against more than 40 databases in a single request. It is one of the longest-established names in third-party TIN verification and serves organizations with regulatory requirements that extend well beyond IRS matching.
What Makes It Stand Out
- Broad screening — Each verification runs against 40+ databases, combining IRS matching with additional regulatory checks.
- IRS downtime resilience — Proprietary cache of 20M+ records provides results when the IRS system is unavailable.
- Enterprise backing — Sovos holds SOC 1 & 2, ISO 27001, and PCI DSS certifications.
- Dual API support — Both REST and SOAP for modern and legacy integrations.
- No IRS eServices registration required — TINCheck handles the IRS connection.
Best For
Enterprise organizations that need comprehensive multi-database screening alongside TIN matching, particularly those with regulatory requirements in financial services, government contracting, or international compliance.
TINComply — Best for W-9 Management + Managed Services
TINComply combines TIN matching with W-9 lifecycle management and optional managed compliance services, making it a compliance platform rather than a standalone verification tool. It is designed for organizations that want to bundle the W-9 collection process with TIN verification under one roof.
What Makes It Stand Out
- W-9 lifecycle management — Collect, store, track expiration, and re-solicit W-9s in one platform.
- Managed services — Option to outsource compliance verification work entirely.
- Multiple validation types — TIN matching, EIN discovery, and additional checks available.
- Free browser tools — 5 free browser-based compliance tools for ad-hoc checks.
- REST API — 10 endpoints for programmatic integration.
TINComply also offers OFAC screening against 250+ sanctions lists, address validation, GIIN verification, and LEI lookups. The platform holds ISO 27001, SOC 2 & 3, and PCI DSS certifications.
Best For
Organizations that need W-9 lifecycle management bundled with TIN verification, or those that want to outsource compliance work via managed services.
Compliancely (Zenwork) — Best for Broad KYB/KYC Compliance
Compliancely, built by Zenwork (the company behind Tax1099), is the broadest platform in this roundup. It positions TIN matching as one component of a comprehensive compliance verification suite that spans business identity, individual identity, and regulatory screening.
What Makes It Stand Out
- Platform breadth — TIN matching alongside KYB, KYC, sanctions screening, address validation, income verification, tax transcripts, and I-9 verification.
- Tax1099 ecosystem — Part of the Zenwork family, connecting compliance verification to 1099 filing.
- AI integration — Model Context Protocol (MCP) support for AI-powered compliance workflows.
- SOC 2 Type II — Certified security and compliance controls.
- Scale — Reports processing 75M+ compliance checks annually.
Best For
Organizations that need a multi-check compliance platform spanning TIN, KYB, KYC, and beyond. Especially relevant for Tax1099 users who want to consolidate compliance and filing in the Zenwork ecosystem.
Which Service Is Right for You?
| Your Situation | Best Fit | Why |
|---|---|---|
| You need fast, affordable TIN matching with a path to 1099 filing | TINCorrect | Purpose-built for IRS matching. Free trial, credit-based pricing, BoomTax 1099 integration. Up and running in minutes. |
| You have no budget and low volume | IRS Direct | Completely free. Authoritative IRS source. Browser-based with delayed bulk results. |
| You need enterprise-grade multi-database screening | TINCheck | 40+ databases per check, Sovos enterprise backing, IRS downtime cache, SOAP + REST APIs. |
| You want W-9 management bundled with TIN matching | TINComply | Integrated W-9 lifecycle, managed services option, multiple validation types. |
| You need a broad compliance platform (KYB, KYC, TIN, and more) | Compliancely | Widest feature set, Tax1099 ecosystem, MCP/AI integration. |
How to Choose: A Step-by-Step Framework
- Start with your use case. Do you need only IRS TIN/name matching, or do you also require W-9 management, sanctions screening, KYB/KYC, or other checks? If it is just TIN matching, TINCorrect or IRS Direct are the most cost-effective options.
- Estimate your volume. Per-check costs vary by provider and volume tier. Get pricing quotes at your actual volume. For most small-to-midsize businesses, TINCorrect's credit-based model provides cost-effective flexibility.
- Check API requirements. If you are integrating TIN matching into existing software, confirm the API authentication method, response format, and bulk/async support. TINCorrect offers REST with JWT and Swagger docs. TINCheck adds SOAP. IRS Direct has no API. See our TIN Matching API Guide for patterns.
- Consider the filing workflow. TINCorrect connects to BoomTax for 1099 filing. Compliancely connects to Tax1099. If you already use one of these filing platforms, the matching TIN service creates a more integrated workflow.
- Test with a trial. Where possible, run a small batch through the service before committing. TINCorrect offers 10 free searches with no credit card. IRS Direct is free for any registered user. TINComply offers free browser-based tools. Other providers typically require a sales conversation.
How TINCorrect Works
TINCorrect keeps TIN verification straightforward in three steps:
Submit Your TIN Data
Upload names and TIN/EIN combinations via spreadsheet, single entry, or API. We support up to 100,000 records per batch.
Verify Against the IRS
TINCorrect validates each name/TIN pair directly against the IRS TIN Matching Program. Real-time results in seconds.
Get Your Results
Download match results with detailed IRS codes. Export to CSV, PDF, or Excel for your records and audit trail.
Further Reading
- TIN Matching: The Complete Guide — Understand the IRS program behind all these services.
- IRS TIN Matching Result Codes — What each IRS response code means.
- Bulk TIN Matching — How to verify thousands of TINs efficiently.
- TIN Matching API Guide — Developer integration patterns.
- W-9 Collection Guide — Best practices for collecting vendor W-9s.
- Vendor Compliance Guide — The full vendor tax compliance workflow.
- Compare Hub — Return to all comparisons.
Passionate about making tax identity verification simple so businesses can focus on what matters.