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Self Assessment tax return service

Ready for a stress-free Self Assessment tax return?

Need to file your Self Assessment? Don’t panic. Our friendly accountants will handle your tax return with care, speed, and zero jargon. So you can avoid mistakes, dodge penalties, and most importantly, save money on your tax bill.

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"Another fabulous service from Crunch. They are an absolute lifesaver. Talking to them reduces my tax return anxiety from 10 to 0 in minutes!"
Anita
Sole & Limited
Self assessment filing service
£200 +VAT
*Price to increase closer to the deadline
File my tax return
File your 24/25 Self Assessment today
£200 £130+VAT
Get 35% off using promo code: 35OFFSA
 
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Offer ends 31/7/25

Key features

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Moneys-saving insights. Our accountants will look for every opportunity to cut your bill.
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Done fast, filed right. So you can avoid costly mistakes or missed deadlines.
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Time-saving software. We’ll pull what we can from your account automatically.
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Real human support. Talk to experienced accountants who explain things clearly.
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Fixed, fair pricing. No hourly rates or nasty surprises.
Great company, used for the first time this year. They have been very patient with me as this was my first year self employed. They have done my tax return within two weeks, even at their busiest time of the year. Couldn’t be happier!

Ben

I've always done my Self Assessment with Crunch, I love how simple they make the whole process, and the gentle reminders they send you, which means it's always done and filed with HMRC comfortably ahead of the deadline.

Ritch

Enormously approachable and great at explaining everything in a simple way without the use of unnecessary terminology. Looking forward to the Self Assessment now instead of dreading it.

Maja

Self Assessment headache solved!

Simon

Who we can help

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Self employed
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Freelancers
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First-time filers
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E-commerce
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Contractors
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Investors
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Digital Nomads
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Landlords
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PAYE (over £100k)
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Construction workers (CIS)
Various people of different occupations

Tax-saving tips are included as standard

We’ll spot every opportunity to keep more cash in your pocket.

Peace of mind, guaranteed

We handle your filing while you get on with life. Simple.

ACCA & AAT qualified accountants

Real experts who follow all the rules – so you don’t have to worry.

Over 59,000 Self Assessments filed

You’re in safe hands – we’ve got the experience to get it right.

Resources for Self Assessment

Frequently asked questions

Explore our FAQs for quick answers to your questions

What is a Self Assessment and do I need to complete one?

Self Assessment - often referred to as a ‘tax return’ - is a way for HMRC to calculate how much Income Tax and National Insurance Contributions you’ll need to pay. For contracted employees, your tax is deducted monthly on your employment income through the PAYE system. For the self-employed, or someone with other types of income (e.g. pension or dividends), HMRC needs a Self Assessment to assess the tax required to be paid.

What’s included in the Crunch Self Assessment service?

If you choose Crunch for your next Self Assessment, here’s what you get with the service:

  • Some quick questions on your Self Assessment, giving our accountants more details on you and your finances
  • Once you have completed a spreadsheet of your expenses or money made, this can be uploaded, along with your questionnaire and any other supporting documents, onto our online software.
  • A friendly Crunch accountant who will review your Self Assessment and carry out a thorough quality check
  • A dedicated accountant that’ll contact you to discuss your Self Assessment and if there are anomalies in the information you’ve provided.
  • The rest is left to us - you can now sit back and relax while Crunch files your Self Assessment with HMRC for you.
I think I have a complex Self Assessment. Can Crunch handle it?

Crunch’s Self Assessment service is a one-off price - with no hidden charges! No matter how complicated you think yours may be, Crunch’s accountants can help, providing a hassle-free and easy experience for our clients.*On rare occasions, Crunch may not be able to complete your Self Assessment ourselves, in which case we’ll offer to refer you to one of our partners, which may incur additional costs. Under no circumstances would Crunch pass on your data without your explicit permission.

Why Should I File my Self Assessment early?

If you choose Crunch for your next Self Assessment, here’s what you get with the service:

  • Some quick questions on your Self Assessment, giving our accountants more details on you and your finances
  • Once you have completed a spreadsheet of your expenses or money made, this can be uploaded, along with your questionnaire and any other supporting documents, onto our online software.
  • A friendly Crunch accountant who will review your Self Assessment and carry out a thorough quality check
  • A dedicated accountant that’ll contact you to discuss your Self Assessment and if there are anomalies in the information you’ve provided.
  • The rest is left to us - you can now sit back and relax while Crunch files your Self Assessment with HMRC for you.
Is it really a one-off fee?

With Crunch’s Self Assessment service, we’re completely upfront with all of our fees. Our price increases throughout the year the shorter the window for completion is before the deadline. If you’d like our extra speedy express service, for last-minute Self Assessment filing, we offer this at an additional fee of £105.50+VAT. Our friendly accountants will give you a stress-free experience, so you feel prepared for the next tax year.*Our prices increase the closer to the submission deadline due to the urgency and turn around time for our team. On rare occasions, Crunch may not be able to complete your Self Assessment ourselves. In which case, we’ll offer to refer you to one of our partners, which may incur additional costs. Under no circumstances would Crunch pass on your data without your explicit permission.

How long does it take?

When it comes to your Self Assessment with Crunch, your part can be over in as little as 15 minutes (subject to the size of your tax return). Once your documents have been uploaded onto our online software, you can sit back and wait for our helpful accountants to get in touch.*On rare occasions, Crunch may not be able to complete your Self Assessment ourselves. In which case, we’ll offer to refer you to one of our partners, which may incur additional costs. Under no circumstances would Crunch pass on your data without your explicit permission.

What if I have just a tax-related query?

You can use our Ask an Accountant service and now pay just £24.50+VAT (was £39.50+VAT) for help from a specialist accountant.

Why is Crunch better than an independent accountant?

Crunch’s Self Assessment service is a one-off fee starting at £200+VAT (prices vary depending on the deadline window). In the UK, you can usually be charged anywhere between £150 to £250 (or potentially more!). Get the expert support you want, at a price that doesn’t break the bank!

When is my Self Assessment due?

It can be filed any time from the 6th of April, up until the deadline of the 31st of January. We recommend filing it at your earliest convenience.

How long does it take to get my tax refund after my Self Assessment?

If you’re entitled to a refund, you should allow four weeks for the refund to be sent to your bank account. If you owe any tax within 35 days of your Self Assessment submission, your refund will be deducted from your total owed.

Who can we help with Self Assessment?

Crunch’s Self Assessment service is available for anyone who’s income isn’t ‘taxed at source’, for example:

  • Self-employed
  • Freelancers
  • Landlords
  • High earners (£100K +)
  • Sole traders
  • Investors
  • Limited Companies
  • Crypto
  • Side hustles
Is my Self Assessment included in my Crunch subscription?

If you have a Crunch Free, Sole Trader Pro, or Small Business plan, there’ll be a small one-off charge. However, if you have a Limited Company Premium plan, your Self Assessment is included in your monthly subscription.

I use Crunch. How do I start my Self Assessment?

If you have an existing Crunch account, just log in, select ‘Self Assessment’ on the left-hand side and click ‘Start’. Our accountants will complete it, request your approval and submit it to HMRC on your behalf.

How do I pay any Self Assessment tax I owe?

Once your Self Assessment has been submitted, HMRC will tell you how much tax you owe. This can usually be paid by debit card.

Do I need an accountant for my Self Assessment?

You might find that their experience and expertise come in handy, but there’s no legal obligation to hire an accountant to file your Self Assessment.

Is Crunch’s Self Assessment service easy to join?

Yes! For all new clients, just sign up for a Crunch Free account, log in, and get started! For further help on this, our friendly handy experts are available on 01273 257165. For existing Crunch clients, you can log in to your account and get started right away. For more information, if you pay for your Crunch subscription, you can get in touch with our client managers at support@crunch.co.uk or 01273 257091

Still have questions?

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