Compare TIN Comply vs. TINCheck

TIN Comply is a vendor compliance platform that validates the people and companies an organization pays before the payment, the onboarding or the 1099 filing creates an IRS problem. It combines real-time IRS TIN and name matching, EIN and company lookup, sanctions and OFAC screening against 330+ global watchlists, address validation, FATCA GIIN and LEI checks, NPI and Medicare verification, and FMCSA carrier verification in one platform, with a guided W-9 portal, bulk file processing, a REST API and AI assistant connections to run it at any volume. The difference from a plain TIN lookup is the detail. Every result explains why a record failed: a name mismatch, the wrong TIN type, an invalid or unissued number, or a sanctions hit with the list and the match score. That lets accounts payable, tax and procurement teams send the vendor the right request instead of a generic form. When the IRS does not match a name and TIN, EIN discovery finds the identifier the IRS actually holds for that business so the record can be fixed without a phone call. The W-9 portal collects certifications with field-level instructions, e-signature, automatic reminders and revalidation the moment a corrected form comes back, and every check is logged with a timestamp for the CP2100, B-Notice and 972CG seasons. Reporting and audit trails show who validated what and when. TIN Comply runs on infrastructure with ISO 27001, SOC 2 and PCI DSS certifications. Plans start at $20 a month with every capability included, and no IRS e-Services enrollment is required. Managed compliance services are available for teams that want the work done for them. Free IRS compliance guides, calculators and templates are published at tincompliance.com.

TINCheck is a comprehensive tax identification verification solution designed to help businesses validate taxpayer information, reduce compliance risks, and streamline onboarding processes. Powered by Sovos, the platform offers real-time TIN matching, bulk verification services, and API integrations that allow organizations to confirm tax ID and name combinations against IRS records and over 20 global databases. Businesses can use the platform to quickly onboard vendors, contractors, gig workers, customers, and suppliers while minimizing fraud risks and avoiding costly IRS penalties or B-Notices. TINCheck supports Know Your Customer (KYC) and Anti-Money Laundering (AML) initiatives by screening individuals and organizations against sanctions databases, watchlists, and government compliance records. The system verifies data through sources such as IRS taxpayer records, OFAC sanctions lists, Death Master File databases, USPS address validation systems, and multiple international regulatory databases. Flexible verification options allow businesses to perform instant real-time checks, upload bulk files for large-scale validation, or integrate automated verification directly into existing workflows using the TINCheck API. The platform helps organizations improve data quality and reduce administrative rework by identifying mismatches before tax filing or vendor setup processes are completed. Businesses can process large datasets efficiently and receive validation results within short turnaround times, improving operational productivity and compliance readiness. TINCheck also offers enterprise-level security features including TLS/SSL encryption, SOC 2 certified data centers, ISO 27001 compliance, and customizable user access controls.