For Accounts Payable (AP) teams and Controllers, vendor verification is no longer a “nice to have” step in the onboarding process. It has become a mission-critical function that directlyimpacts financial integrity, compliance, and corporate reputation. In a landscape where fraud tactics are advancing rapidly and IRS compliance requirements continue to tighten, organizations that rely on outdated verification methods expose themselves to unnecessary risk. This guide explores the rising challenges of vendor fraud, why enhanced verification matters more than ever, and how TINCheck can help your team safeguard operations whille ensuring IRS compliance.