A Schedule 36 notice is a notice which is given in writing by HMRC to a taxpayer requesting him or her to provide information or documents that HMRC deem to be reasonably required to check their tax position.
HMRC cannot request that a person produce a document unless the document is in their possession or the person has the power to produce it.
HMRC defines in the person’s possession as the person having physical control over the document, it does not matter who the document belongs to. HMRC defines in the person’s power as the person having the ability to get the document, or a copy of it, from whoever holds it.
The person who receives the notice must be given a reasonable time to respond to it, it should be noted however, that no statutory time limit is prescribed. In most cases where HMRC issue a notice under paragraph 1 of Schedule 36, they will allow 30 days from the date of the notice for the reply.