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May 12, 2025 2 min read Golden Tree Consulting

HMRC Fine Appeals: Reasonable Excuses That Actually Work

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Discover which excuses HMRC accepts when appealing a fine, how to file an appeal, and what won’t be accepted. Avoid penalties with the right guidance.

Reasonable Excuses for Appealing HMRC Fines: What You Need to Know

Occasionally, clients may face situations where meeting tax obligations on time is impossible. In such cases, HMRC allows for appeals against fines if you have a reasonable excuse.

A reasonable excuse is something that prevented you from meeting a tax obligation despite taking reasonable care.

Valid Reasonable Excuses

Some examples of reasonable excuses include:

  • Death of a partner or close relative shortly before the deadline.
  • Unexpected hospitalization preventing tax affairs management.
  • Serious or life-threatening illness.
  • Computer or software failure during online return preparation.
  • Service issues with HMRC online services.
  • Natural disasters like fire, flood, or theft.
  • Unpredictable postal delays.
  • Delays related to a disability.
  • Impact of coronavirus (COVID-19).

Invalid Excuses

The following excuses are generally not accepted by HMRC:

  • Reliance on someone else to send the return who failed to do so.
  • Insufficient funds leading to a bounced cheque or failed payment.
  • Difficulty using the HMRC online system.
  • Not receiving a reminder from HMRC.
  • Errors made on the tax return.

Deadlines and Appeals

You must usually appeal within 30 days of the penalty notice date. If you miss this deadline, explain the reason for the delay, and HMRC will decide whether to consider your appeal. If impacted by COVID-19, you have an extra three months to appeal any penalty dated February 2020 or later.

Remember

Submit your return or payment as soon as possible after resolving your reasonable excuse. This ensures compliance and helps avoid further penalties. Proper documentation and timely communication with HMRC are essential for a successful appeal.

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