https://www.gov.uk/hmrc-internal-manuals/inheritance-tax-manual/ihtm10045
IHTM10045 - IHT400 - Additional information pages (pages 15 and 16) - HMRC internal manual - GOV.UK
https://www.gov.uk/hmrc-internal-manuals/inheritance-tax-manual/ihtm10022
IHTM10022 - IHT400: what is included in the account? - HMRC internal manual - GOV.UK
what is included
https://www.gov.uk/hmrc-internal-manuals/inheritance-tax-manual/ihtm10044
IHTM10044 - IHT400 - Checklist (page 14) - HMRC internal manual - GOV.UK
checklisthmrcinternalmanualuk
https://www.gov.uk/hmrc-internal-manuals/inheritance-tax-manual/ihtm12032
IHTM12032 - Succession: Investigating boxes 24 to 28 of the IHT400: Deceased's former residence -...
https://www.gov.uk/government/publications/inheritance-tax-inheritance-tax-account-iht400
Inheritance Tax account (IHT400) - GOV.UK
Apply for probate or confirmation if there's Inheritance Tax to pay, or if the deceased's estate does not qualify as an 'excepted estate'.
inheritance taxaccountuk