SOW (Source of Wealth)

SOW verification is the broader compliance discipline complementary to SOF. While SOF establishes that specific gambling funds came from legitimate sources, SOW establishes that the player's overall wealth has legitimate origin: career income, business ownership and exits, inheritance, investment returns, asset accumulation. For VIP relationships with substantial gambling spend, SOW is essential to establish that the player's economic capacity supports the level of play observed. The documentation requirements scale with complexity. A salaried professional with verifiable income provides relatively straightforward SOW evidence. A self-employed business owner, inheritor of family wealth, or beneficiary of asset sales requires more complex documentation: business accounts, asset valuations, wealth advisor confirmations, inheritance documentation. The friction is meaningful but the compliance defense for VIP relationships requires documented SOW. Operator-side specialist compliance teams handle VIP SOW work, often involving extended player relationships through the documentation process.