If a someone died in October 2018 (i.e. during the tax year ended 5th April 2019), does the filing deadline of 31 January 2020 still apply? If so, are there any filing penalties if not filed by 31 January 2020? for example, in the circumstance that all the information is not yet available to correctly complete that person's final Self Assessment Tax Return.
If a late filing penatly does apply, is it acceptable to file estimated figures by 31 January 2020 (to avoid the late filing penatly), and then ensure to file a revised 2018/19 return before 31 January 2021? (I will be using accountancy software to file the return online)
Any other tips on arranging tax affairs for the deceased would be much appreciated (I have checked the HMRC website but the information is limited)