Share of property held in IPDI trusts - are the trusts taxable?

Hello My father's will set up a 2 IPDI trusts, each holding his share of one of 2 properties. Both of which were held as tenants in common with my mother. The beneficiary / life tenant is my mother and the trustees are my mother, my sister and me. Property 1 is my mother's home Property 2 is currently a holiday let Can the trusts be registered with HMRC by me (in my capacity as a trustee), or do I need to instruct a solicitor? Will HMRC tell me if the trusts are taxable when I register them, or is it my responsibility to determine whether they are taxable? If so, where can I find the information I need to determine their status? Thank you

Hi,
Please refer to Trusts and taxes or telephone 0300 123 1072.
Thank you.