Chartered Certified Accountants
Tax Investigation and Disclosure Specialists

Late Filing & Non-Compliance

UK taxpayer reviewing HMRC Self Assessment registration obligations and late filing risks

I Didn’t Know I Had to Register for Self Assessment — What Now?

Many taxpayers are unaware that they may need to register for Self Assessment with HMRC.

This situation commonly arises where individuals begin freelance work, receive untaxed income, become company directors, or start earning additional income outside PAYE employment.

UK HMRC compliance and tax investigation concept for unfiled tax returns and prosecution risk

Late Tax Returns UK: Will HMRC Prosecute You for Not Filing?

Receiving a letter from HMRC does not necessarily mean you have done anything wrong. Many letters are issued as part of routine compliance activity or to request additional information. However, it is important to understand the purpose of the letter and respond promptly, as failing to act could lead to penalties, extended enquiries or further HMRC action.