Your P45, P60 and P11D form
P11D
Your employer might submit a P11D to tell HM Revenue and Customs (HMRC) if you get ‘benefits in kind’ (for example a company car or interest-free loan).
Your employer may take the tax you owe on your benefits out of your pay. In that case, they will not need to submit a P11D. Your employer will write to you to explain how this works.
If you need your P11D details
You can ask your employer for a record of what they reported in the P11D, including how much each benefit is worth.
If they cannot give you one, you can contact HMRC.