Thousands of workers in Britain are expected to miss the January 31 deadline to submit their tax returns.

The government is set to yield more than £90 million in overdue fees as a result of the late submissions.

So far, 3.8 million self-assessment returns have been received, according to HM Revenue and Customs. Although that is 4.2 per cent higher than this time last year, another 3.5 million returns are still due.

Accountancy experts believe most of those would be filed in time for the final deadline, but about 900,000 people are still expected to miss it, despite a major advertising campaign. They will face a £100 fine and taxpayers will also have to pay interest on any unpaid tax. Before filing tax returns, workers will need to register online, a process which can take up to seven working days.

Get more info on filing your tax return here: