My company refuesed to provide P11D

Hi HMRC, I have resigned and my last working day will be today. Since I got medical insurance paid by my company and I used part of my income for the dental and travel insurance, suppose they should give me P11D at least to cover period from Apr 2024 to Nov 2024, however the HR rejected to provide and said the P11D should be provided by my new employer, not them. It does not make sense since new company should not have my benefit information during the period in old company. What should I do if 2024/2025 I need to do self assessment and how can I get those information? Thanks, Kira

Hi,
While your employer does not have to provide you with a P11D form, they should still provide you with details of any benefits or expenses submitted via P11D, including your dental and travel insurance, if you request them.
If your employer continues to refuse, we can confirm this information for you. You can contact our Income Tax team for advice.
Income Tax: general enquiries
Thank you.