TIN Validation Platform | TAINA ValidTIN
A Tax Identification Number (TIN) is the unique identifier used by tax authorities to track the reporting obligations of individuals and entities across jurisdictions. Under FATCA, the OECD's Common Reporting Standard (CRS), and the Crypto-Asset Reporting Framework (CARF), financial institutions and global platforms are required to collect, validate, and report accurate TINs for account holders and payees across every relevant jurisdiction.
Why TIN errors cost more than you think
Getting TIN data wrong carries real consequences, regulatory penalties, IRS B-notices, withheld payments, and remediation backlogs. For platforms and institutions filing at scale, even a small error rate compounds quickly, turning a handful of incorrect TINs into a significant and avoidable compliance exposure. As global reporting requirements expand and platforms operate across more jurisdictions, the volume and complexity of TINs to manage is only increasing.
TAINA ValidTIN is the first standalone, AI-powered TIN validation platform built for compliance and operations teams at global platforms, marketplaces, and financial institutions. Now available in early access beta.
Does your organisation need TIN validation?
TIN validation has become a growing operational challenge for any organisation onboarding or paying individuals and entities across borders. The combination of expanding FATCA, CRS, and CARF obligations, jurisdiction-specific TIN formats, and increasing regulatory scrutiny means manual validation processes are no longer sustainable at scale.
The CRS framework added 10 new jurisdictions in 2025 alone and now covers over 2,700 bilateral exchange relationships globally. Financial institutions, global marketplaces, gig economy platforms, and multinationals are all facing the same pressure: validate more TINs, across more jurisdictions, with greater accuracy, and do it faster than current processes allow.
Is TIN validation a regulatory requirement?
Under FATCA, CRS, and CARF, financial institutions are required to collect, maintain, and report accurate TIN information for reportable account holders. Getting that information wrong, through invalid or missing TINs, can result in regulatory penalties, mandatory withholding obligations, and heightened audit risk. As reporting requirements continue to expand globally, the operational burden of managing TINs accurately and at scale is only increasing.
For gig economy platforms and global marketplaces, the obligation mirrors that of financial institutions: any platform making payments to workers, sellers, or contractors across jurisdictions must ensure TIN data is accurate before payout and reporting.
What does TAINA ValidTIN do?
TAINA ValidTIN is an AI-powered TIN validation platform covering 108 jurisdictions. It validates TINs against OECD-published format rules, checksum algorithms, and other rules, delivering instant results with AI reasoning analysis. It is purpose-built for compliance and operations teams, not developers.
ValidTIN offers three core capabilities:
- Single TIN validation: input a TIN and jurisdiction, receive an instant result, Valid, Invalid (with reason code), or Unsupported
- Bulk CSV upload: validate up to 500 TINs at once via spreadsheet upload; results returned inline per row
- AI-powered Q&A: ask plain-English questions about TIN formats, validity rules, and jurisdiction-specific requirements and receive an immediate, grounded response
Reduce the operational risk of TIN validation at scale
Manual TIN validation processes, spreadsheets, government reference portals, and in-house developer tools, create operational risk at scale. Errors are caught late, remediation is costly, and the compliance team bears the burden.
- TAINA ValidTIN eliminates manual lookups by validating TINs instantly against OECD rules across 108 jurisdictions, in seconds, not hours
- Bulk processing means compliance teams can validate entire onboarding batches or remediation files in a single upload, freeing up significant analyst time
- The AI Q&A layer removes dependency on in-house tax specialists for jurisdiction-specific questions, your operations team gets reliable answers immediately
Built for the teams doing the work
ValidTIN is designed for compliance and operations professionals, not developers. There is no integration required during beta, access is UI-only, meaning your team can be up and running immediately with no technical dependency.
The AI Q&A interface means non-specialist staff can answer complex TIN questions without escalating to a tax team or an external advisor. Results are clear, reasoned, and produced in seconds.
- 108 jurisdictions supported at beta launch, the broadest standalone TIN validation coverage available
Join the ValidTIN early access programme
TAINA ValidTIN is currently in beta. We are working with a deliberately selected group of organisations, global platforms, marketplaces, and financial institutions, to test, refine, and build the product with real-world feedback.
Early access is not a public beta. Places are limited and participants are selected based on fit. Early access includes full platform access, direct onboarding support from the ValidTIN product team, input into the roadmap, and preferential pricing at general availability.
If your organisation validates TINs across multiple jurisdictions, or should be, we would like to hear from you.
