White Papers

An overview of the full TIN Comply platform: what it does, who it's for, and how it fits into the vendor compliance workflow from onboarding through filing and B-Notice response. Covers IRS TIN matching, EIN discovery, W-9 collection and remediation, sanctions screening, bulk file processing, API integration, audit trails, and managed services for teams that need hands-on support rather than software.

OFAC sanctions screening is not limited to banks and financial institutions — any company that makes payments to vendors, contractors, or individuals has exposure. This paper covers TIN Comply's screening against 250+ global watchlists including OFAC SDN, FinCEN, HHS OIG exclusion lists, SAM.gov, and AML databases, with industry-specific compliance requirements for financial services, healthcare, government procurement, gig economy platforms, and supply chain.

A TIN mismatch doesn't always require a vendor outreach cycle. EIN Discovery resolves Code 3 results by looking up the correct EIN from the company name, or verifying the correct legal name associated with a known EIN. This covers how the lookup works, when it resolves a mismatch without a W-9 request, and how it integrates into the broader TIN matching workflow.

Most compliance teams run TIN matching, sanctions screening, and W-9 collection through separate tools with separate logins, separate results, and no shared audit trail. This paper covers TIN Comply's full validation suite — IRS TIN/name matching, EIN lookup in both directions, W-9 collection with e-signature, OFAC and 250+ global watchlist screening, address validation, FATCA GIIN validation, and LEI verification — all accessible through the same portal or API.

IRS TIN Matching returns one of eight result codes and stops there — no correction path, no audit trail, no lockout protection. TIN Comply adds EIN discovery to resolve mismatches without vendor outreach, W-9 remediation workflow triggered directly from mismatch results, protection against the 96-hour IRS account lockout, full validation history, and no IRS e-Services registration required to get started.

The IRS bulk TIN matching program imposes a 100,000-record file limit, a 24-hour turnaround, strict semicolon-delimited formatting, and an account lockout when the same TIN or name appears more than three times in a single file. TIN Comply accepts Excel, CSV, or TXT in any format, handles unlimited file sizes, auto-deduplicates to protect your IRS account, and returns results within the hour.

Batch processes and manual TIN lookups leave compliance gaps between onboarding and filing. This paper covers how API integration closes those gaps — validating TINs at the moment of onboarding or payment, eliminating the conditions that generate CP2100 notices and 972CG penalties, and connecting directly into CRMs, ERPs, and payroll platforms.

For platforms and enterprises that need TIN validation embedded in their own systems rather than run as a separate process, TIN Comply's API provides a single endpoint for IRS TIN matching, EIN discovery, sanctions screening, and address validation. JSON responses, multiple API keys, full audit trail, and no IRS e-Services registration required.