The PPF levy (paid annually by eligible schemes) comprises two elements: the scheme-based levy (20%) and the risk-based levy (80%). The levy year runs from 1 April to 31 March and, in order to calculate accurately the levy payable by each eligible scheme, the PPF takes into account (amongst other things) the scheme's assets and liabilities. A block transfer certificate provides the PPF with the information concerning the transfer of assets and liabilities between schemes.
The PPF has recently published guidance on the calculation and certification of block transfers for the 2009/10 and 2010/11 levy years. This is available on their website.
Block transfers are reported via the section 179 valuation in the scheme return or on a specific form.
On their FAQ page, the PPF also sets out the deadlines to be met. These are set out here, together with other iminent PPF deadlines.