All stamp duty correspondence should be emailed to HMRC using the dedicated stamp duty mailbox – stampdutymailbox@hmrc.gov.uk – while the temporary coronavirus processes are in place.
HMRC reiterates that, during this period, physical stamp duty post should not be sent to Birmingham Stamp Office or to the stamp duty land tax postal address. To do so will lead to delays in that post being sent to the correct teams for processing.
HMRC stamp duty: tinyurl.com/hmrcsdcomms