UK Self-Assessment Deadlines: What You Need to Know

Every UK taxpayer required to file a self-assessment return needs to be aware of the key HMRC deadlines throughout the year.

Missing the 31 January online filing deadline results in an automatic £100 penalty, with further charges accruing the longer a return remains outstanding.

Working with an accountant well ahead of the deadline ensures your return is accurate, complete, and submitted with time to spare.