Sounds like this only applies to certain players: The Wwft applies to anyone involved in cash flows or the purchase and sale of (expensive) goods. For example:

Sounds like this only applies to certain players: The Wwft applies to anyone involved in cash flows or the purchase and sale of (expensive) goods. For example: banks; estate agents; notaries; tax advisers; lawyers; people who mediate in the purchase and sale of, for example, vehicles, art objects and jewellery. So one-off transactions (you sell some personal item and accept cash) are probably exempt from the due diligence check.