The personal impact of a P11d depends on what is itemised. If you have received a benefit in kind, you may have to pay tax on the cash value.
Generally, if you have received a Plld, your company has recorded a benefit in kind on the form which is identified at its cash equivalent value. This ‘cash value’ will be used to calculate any tax you need to pay on the benefit and is determined by the type of benefit that your employer has provided.
For expenses, the cash equivalent is the amount paid by your employer. For some benefits in kind, the cash equivalent is based on specific calculations. For example, a car benefit is based on a company car’s CO2 emissions x percentage of the car’s list price.