Self Assessment season: File and pay your tax bill before 31st January 2021

The Self Assessment is the dirty laundry of the business world – you know it needs doing by the end of January, but you put it off, again and again, hoping that somehow it’ll do itself. Suddenly Christmas has come to pass and you realise there’s no avoiding it any more.


The expert accountants at Crunch have helped thousands of sole traders and limited companies file their Self Assessments, and offer a range of articles and guides to help you make your next filing the smoothest and simplest one yet.

How to file your first Self Assessment

Filing your first Self Assessment can be a stressful task if you’re not sure what to expect. Thankfully, the process is much more straightforward than you may think – as long as you’re organised, of course! Check out our beginners guide to filing your first Self Assessment.

Seven reasons why you should file your Self Assessment early

31st January 2021 might feel like a long way away, but filing your Self Assessment as soon as you can has more than its fair share of benefits. Avoid fines, know how much you need to pay HMRC, make sure you have enough put aside, and spare yourself a Christmas nightmare.


Still need convincing? Here are seven reasons why you should file your Self Assessment early.


Another reason to file early if you are self-employed, and usually pay tax on account, is the government’s deferment of the payment on account you were due to make on 31st July 2020. It’s vital you understand how much tax you owe as early as possible if you decided to defer your payment which must now be settled by 31st January 2021, which means you may have a higher amount to pay in January than you’re used to.

Tips from our expert client managers

We’ve been helping clients file their Self Assessments for 11 years, and we’ve seen our fair share of deadline day chaos. We asked our expert client managers what lessons they’ve learned and what advice they’d offer ahead of the 31st January deadline.

The complete Self Assessment guide

Whether you’re a complete novice or seasoned pro, we’ve compiled a thorough and jargon-free guide to how to file your Self Assessment, covering everything from how to register with HMRC to which financial records you need to include. Even better, the guide is completely free and yours to keep forever!

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