Source of Funds (SOF) & Source of Wealth (SOW) Explained

Casinos ask about source of funds for large deposits. Learn what SOF and SOW checks are, when they're required, and what documents to provide.

By Adam "All in" Maxwell6 min read

H1: Source of Funds (SOF) & Source of Wealth (SOW) Explained

Introduction

- Request for financial documents can feel invasive - SOF and SOW are legal requirements - Triggered by large transactions - What this guide covers

H2: What Is Source of Funds (SOF)?

- Definition and purpose - Proves where deposited money came from - Required for specific transactions - Anti-money laundering compliance

H2: What Is Source of Wealth (SOW)?

- Definition and purpose - Proves your overall financial standing - Broader than SOF - Required for high-value players

H2: Why Casinos Request SOF and SOW

- Legal obligation under AML laws - Preventing money laundering - Protecting vulnerable players - Regulatory enforcement and penalties

H2: When SOF Checks Are Triggered

- Large deposits (typically over £2,000) - Large withdrawals - Cumulative deposits over time - Sudden increase in gambling activity - Unusual transaction patterns

H2: When SOW Checks Are Triggered

- Very high rollers - Cumulative deposits over £10,000-£25,000 - Extended verification requirements - VIP account applications

H2: What Documents Are Required for SOF

- Payslips (employment income) - Bank statements - Tax returns - Sale of assets (property, investments) - Inheritance or gift documentation - Business income proof

H2: What Documents Are Required for SOW

- Tax returns over multiple years - Property ownership documents - Investment portfolio statements - Business ownership records - Inheritance documentation - Pension statements

H2: How to Prepare Your SOF/SOW Documents

- Gather recent financial records - Ensure documents are dated correctly - Redact sensitive information appropriately - Organize by category - Keep originals for reference

H2: How Long SOF/SOW Verification Takes

- Typically 3-7 business days - Can extend to 2-4 weeks for complex cases - Depends on document clarity - Additional requests add time

H2: What Happens If You Can't Provide SOF/SOW

- Withdrawals blocked - Deposits may be restricted - Account may be closed - Funds returned to source - No exception for licensed casinos

H2: Are SOF/SOW Requests Legal?

- Required by AML regulations - UKGC and MGA mandate them - Casinos face penalties for non-compliance - Your rights under GDPR

H2: Red Flags and When to Be Cautious

- Unlicensed casinos requesting excessive info - Requests for irrelevant documents - No clear explanation provided - How to verify legitimacy

H2: Tips for Smooth SOF/SOW Verification

- Keep financial records organized - Submit clear, complete documents - Be honest and transparent - Respond promptly to requests - Use secure upload portals

Summary / Key Takeaways

  • SOF proves where specific deposit money came from
  • SOW proves your overall financial standing
  • Required for large deposits, typically over £2,000
  • Legal requirement under anti-money laundering laws
  • Prepare bank statements, payslips, tax returns
  • Verification takes 3-7 days, sometimes longer
  • Failing to provide documents blocks withdrawals

Final Note

GameGuard helps you navigate casino payments safely and confidently. By understanding how deposits, withdrawals, and verification work, you can protect your money and avoid common pitfalls when gambling online.