There’s just five days to the 2024/25 online self-assessment (SA) filing deadline on Saturday 31 January 2026. By way of reminder, on Saturday 31 January HMRC will be operating a restricted service with assistance only available via webchat and no telephone support available on 31 January, except for a call-back service for vulnerable taxpayers. Anyone who may need to call HMRC for assistance before filing a return is therefore advised to file that return on or before Friday 30 January 2026 to ensure they are able to call HMRC and receive the necessary assistance.
HMRC has also asked us to remind agents who are using the SA reactivation option on the Agent Dedicated Line (ADL) that telephone agents on this part of the ADL cannot deal with other general SA queries. Option 1 on the ADL (the reactivation option) is for SA reactivations only.
Advisers are unable to address any other SA enquiries via this route and are also unable to transfer the agent to the general enquires line. Selecting the wrong option increases the time that the agent can get their issue resolved which causes frustration for the agent and adviser alike.