By Andrew Nuttall

Copyright manchestereveningnews

According to Statista, roughly 4.4 million people across the UK have been working for themselves since the start of 2025, making up around 13.5% of the total workforce. For those who have recently launched their own business or begun freelancing, staying on top of all the necessary paperwork can feel overwhelming. However, HM Revenue and Customs (HMRC) has issued a warning to everyone regarding an upcoming date that must not be overlooked. In a message shared on X, a representative from the government agency claimed that those impacted need to take action immediately as the cut-off point is “fast approaching”. They wrote: “The deadline for those new to Self Assessment to register is fast approaching. You may need to register if you’re self-employed, a landlord or a partner in a business partnership.” Self Assessment represents the system HMRC employs to gather income tax, reports the Mirror . For those employed by companies who receive wages or pensions, this is typically taken automatically from their pay packet. However, those in any of the three categories mentioned must declare and submit their earnings through a tax return document. HMRC provided the public with a free online resource to check whether they could owe money . The cut-off date for submitting your tax return is approaching within days. People who work for themselves or operate their own enterprises must file a tax return covering the prior year by October 5. Missing this deadline could lead to severe penalties. If you register after October 5 and fail to settle your entire tax bill by January 31, you may be hit with a ‘failure to notify’ penalty. This penalty is calculated based on the outstanding amount, and it will be issued within 12 months of HMRC receiving your Self Assessment tax return. Should there be any exceptional circumstances that you feel the officer handling the check should consider when calculating the penalty, it’s crucial to inform them immediately. If you pay late, you’ll get penalties of 5% of the tax unpaid after 30 days, six months and 12 months, as well as interest on the amount owed. To avoid this, pay your Self Assessment tax bill as soon as possible. If you’re finding any part of the Self Assessment process challenging, you have the option to appoint someone to complete and submit your tax return on your behalf. This could be a professional, such as an accountant, or a trusted person, like a friend or family member. Alternatively, you can contact HMRC directly for general Self Assessment help . You can ring the support line on 0300 200 3310 or talk to someone via the HMRC online chat function .