I've missed the Self Assessment filing deadline – what penalties could I face?

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  • Late filing penalties for Self-Assessment Tax Returns can run in to £1,000s even when there is no additional tax liability owed to HMRC.

  • Every year HMRC receive millions in late filing penalties from taxpayers.

  • Late filing penalties can only be appealed against when a taxpayer has so called “reasonable excuse”. As you’ll see from HMRC’s commentary, the circumstances for ‘reasonable excuse’ to apply are fairly restrictive.