Expense, travel and corporate-card fraud is the exposure created when reimbursement and card systems are exploited: fabricated receipts, inflated mileage, personal spend miscoded as business, duplicate claims, or quiet collusion with approvers. Individually small, these losses matter to a board because they are chronic, culturally corrosive, and often a leading indicator of weaker controls elsewhere. This report describes how the risk presents in your chosen jurisdiction and industry, the employment and tax consequences that attach, the red flags and first checks finance teams should run, the data-analytics techniques that surface patterns, realistic cumulative loss ranges, and the point at which a low-level pattern should escalate to a formal investigation with counsel and forensic support rather than an informal manager conversation.
Reference material for informed readers, not advice.