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What is TINCheck?

TINCheck is an advanced tax identification verification and compliance platform powered by Sovos that helps businesses validate taxpayer information, reduce fraud exposure, and maintain regulatory compliance through automated identity verification tools. The platform enables organizations to perform real-time, bulk, and API-driven TIN matching against IRS records and more than 20 global databases to verify customers, vendors, contractors, suppliers, and gig workers with speed and accuracy. Businesses can streamline onboarding workflows while minimizing the risk of IRS penalties, B-Notices, incorrect tax filings, and costly manual corrections caused by inaccurate taxpayer information. TINCheck supports compliance programs such as Know Your Customer (KYC) and Anti-Money Laundering (AML) by screening individuals and entities against sanctions lists, government watchlists, and international regulatory databases. Verification sources include IRS TIN matching records, OFAC sanctions databases, Death Master File records, USPS address validation services, politically exposed persons lists, global sanctions programs, and various U.S. and international compliance databases. Organizations can choose from flexible verification methods including instant real-time checks, large-scale bulk uploads, and seamless API integrations that embed tax ID verification directly into onboarding and vendor management systems. The platform helps businesses improve operational efficiency by automating validation tasks and identifying mismatched records before tax filing or customer setup processes are finalized. Bulk verification capabilities allow organizations to process large datasets quickly and receive detailed validation results within 24 hours, helping reduce administrative workloads and compliance risks.

What is TIN Comply?

TIN Comply is a vendor compliance platform for accounts payable, tax and procurement teams that need to validate vendors, collect W-9s, screen sanctions lists and prevent 1099 problems before filing. It acts as the validation layer between the point where vendor data enters an organization and the point where it becomes an IRS notice, a B-Notice season or a penalty. Validations: real-time IRS TIN and name matching; EIN and company lookup, including EIN discovery when a vendor supplies the wrong number; company details lookup; sanctions and OFAC screening against 330+ global watchlists with fuzzy and alias matching; USPS address validation; FATCA GIIN and LEI validation; NPI and Medicare enrollment verification for healthcare payers; FMCSA carrier verification for logistics. Workflow: a guided electronic W-9 portal with field-level instructions, e-signature, centralized storage, automatic correction outreach and revalidation when a corrected form is returned; bulk file processing for entire vendor populations in one pass; a REST API for ERP, onboarding and finance systems; AI assistant connections through MCP; and reporting with per-vendor audit trails for IRS examinations and internal reviews. What sets it apart is the result detail. Every check returns the reason a record failed, not a pass or fail flag, so the follow-up asks the vendor for the right correction the first time. Every check is timestamped and exportable, which is the evidence a payer needs for the CP2100 season and a Notice 972CG reasonable-cause response. Pricing starts at $20 a month, every capability is in every plan, and there is no IRS e-Services enrollment to obtain. The platform runs on ISO 27001, SOC 2 and PCI DSS certified infrastructure. Managed compliance services are available for teams that want TIN Comply to run the program. TIN Comply also publishes free IRS compliance guides, calculators and letter templates at tincompliance.com.

Media

Media

Integrations Supported

Sovos

Integrations Supported

API Availability

API Availability

Has API

Pricing Information

$19.95/month

Pricing Information

$20/month
Every capability is in every plan; plans differ only by volume and seats. Monthly: Basic $20 (25 verifications, 250 W-9s, 1 seat), Pro $50 (100, 1,000, 2 seats), Premium $100 (250, 2,500, 5 seats), Enterprise $300 to $1,000 (1,000 to 5,000 verifications, up to unlimited seats). Extra verifications from $0.88 down to $0.22 each. Prepaid packs with no expiry from $100 for 100 verifications. Free trial with 5 verifications, no credit card. Managed compliance services (W-9 outreach, vendor master cleanup, CP2100/B-Notice handling, 972CG penalty support) are fixed-fee engagements. No IRS e-Services enrollment required.
Free Trial Offered?

Supported Platforms

SaaS

Supported Platforms

SaaS

Customer Service / Support

Web-Based Support

Customer Service / Support

Standard Support
Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub
Online Training

Company Facts

Organization Name

Sovos

Date Founded

1979

Company Location

United States

Company Website

tincheck.com

Company Facts

Organization Name

TIN Comply

Company Location

Austin, TX

Company Website

www.tincomply.com

Categories and Features

Tax Compliance

Not specified

Categories and Features

Address Verification

Address Validation
Automatic Formatting
Data Cleansing
Data Quality Control
Data Verification
Reporting / Analytics
Search / Filter

KYC

Not specified

Tax Compliance

Not specified

Vendor Management

Audit Management
Self Service Portal
Supplier Master Data
Vendor Maintained Profiles
Vendor Qualification Tracking

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4.6 out of 5 stars