Project Bank Accounts (PBA) are a payment mechanism based on ring-fenced bank accounts created to increase the security of contractors and sub-contractors in a building project. Their main benefits include security and speed of payment and protection of funds in potential insolvency. Sounds too good to be true? PBAs are becoming increasingly common, and with the Government commitment to use PBAs “unless there are compelling reasons not to do so”, their joint value in public sector contracts is expected to reach £4bn by this year.