The company van benefit and van fuel benefit is based on a fixed amount. For 2021/22 , the van benefit is £3,500 (2022/23 : £3,600) and the van fuel benefit £669 (2022/23: £688).
In order to avoid the benefit, the van must only be available to the employee for business travel and commuting and must not be used for private purposes except to an insignificant extent.
If private use is insignificant, then there is no benefit to disclose on a P11d form, nor a van fuel benefit.