Everything you need to know about Self Assessment tax return as the deadline approaches

You have just a few weeks left (Picture: Getty Images/iStockphoto)For the almost 12 million people who fill in a Self Assessment tax return each year, January 31 is an important deadline.This is the day by which you must both file the return itself and pay any tax owed to the HMRC or risk a series of heavy and escalating penalties.If you still haven’t filled in your form, but think you need to do so, or if you’re wondering about how to pay the tax owed, this guide should help you to