A list of most relevant HMRC links that includes:How to fill in your tax return, residence, remittance basis etc. notes,Capital gains summary notes, UK property notes, Additional information notes, and many more
Throughout the summer the Agent Online Self Serve (AOSS) project team has been conducting interviews with agents to inform the initial design and development of an alpha prototype. Here’s an update on this work and our progress with the developing Agents Strategy.
Generally, a 'reasonable excuse' is when some unforeseeable or unusual event beyond somebody's control has prevented that person from filing the return on time. For example:
a failure in the HMRC computer system,a serious illness, disability or serious mental health condition has made the taxpayer incapable of filing the tax return etc.