Travel and Entertainment (T&E) expense fraud involves inflating, fabricating, or duplicating business travel claims for private financial gain. While individual expense violations are often small, their aggregate impact across a multinational corporate footprint can lead to material capital flight and create an environment of weak internal controls if left unmanaged.
Perpetrators commonly use Multi-Claim Schemes, where a single genuine business expense is submitted across multiple quarters or through separate employee accounts to receive double payouts.
  ┌────────────────────────────────────────────────────────┐
  │              T&E EXPENSE FRAUD VECTOR MATRIX           │
  └───────────────────────────┬────────────────────────────┘
                              ▼
  ┌────────────────────────────────────────────────────────┐
  │   FABRICATED EXPENSES  ──► Generating fake online bills│
  │   MISCLASSIFIED EXPENS ──► Claiming personal vacations │
  │   INFLATED TRANSACTIONS──► Editing receipt values      │
  └────────────────────────────────────────────────────────┘

The fraud unit audits these activities by implementing automated transaction processing rules:
  1. Fabricated Expense Identification: Scanning receipt images for signs of digital alteration, such as mismatched font styles, pixel patterns, or invalid corporate registration details.
  2. Misclassified Claim Detection: Cross-checking travel expense submission timelines against employee calendar entries and physical building badge access logs to identify claims filed during personal vacations or sick leave.
  3. Inflated Value Verification: Using data extraction tools to compare stated travel costs against third-party pricing baselines, such as the GSA Per Diem Travel Rates Platform, helping to automatically flag claims that exceed logical limits.

 
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