Self Assessment Tax Return
Accountancy Made Simple from only £28/month
Get ahead of the game and file in just 5 days!
Join thousands of small UK businesses who trust Caroola & BAA
with their Self Assessment every year
The deadline for filing your Self Assessment tax return is January 31st 2026. That may seem far away now, but why put off to tomorrow what you can do today?
Starting the process early means you can get your tax return filed and out of the way for ultimate peace of mind. Plus, no last minute stress or late-filing penalties!
How does it work?
It's an easy, three-step process.
Step 1
Book your free consultation. We'll talk you through the process and get all the details we need to file your Self Assessment.
Step 2
We'll handle it all. No mess, no fuss. Just an accurate, timely submission.
Step 3
Relax for another year. With your accounts filed and submitted, you're free to get on with the day job.
Self Assessment deadlines and fines
When is the Self Assessment deadline?
The deadline for filing your Self Assessment tax return is January 31st 2026. That may seem far away now, but why put off to tomorrow what you can do today?
Starting the process early means you can get your tax return filed and out of the way for ultimate peace of mind. Plus, no last minute stress or late-filing penalties!
How much will I be fined for late filing?
You’re automatically hit with a £100 fine from HMRC if your tax return is up to 3 months late. Then, if you file after this period the fine continues to increase, and you’ll be charged 7% interest on late payments. Here’s a breakdown of the fines you’re facing:
- Over 3 months late: £10 per day, up to a maximum of £900
- Over 6 months late: Another £300 fine or an additional 5% of tax owed – whichever is higher – totalling £1300
- Over 12 months late: Another £300 fine or an additional 5% of tax owed – whichever is higher – totalling £1600.
Why Choose Caroola for Self-Employed Accounting?
Registration Handled
We can register you as self-employed with HMRC, so you don't have to work it out alone.
Flexible plans
Flexible plans
Your Own Accountant
Work with a dedicated accountant who takes the time to understand your business.
Clear Pricing
Our transparent, fixed pricing ensures you know exactly what you’re paying for.
Growth Partner
From your first year self-employed to an established business, your package adapts.
Self Assessment tax return, prepared and filed
Help registering as self-employed with HMRC
Cloud accounting software included
Bookkeeping guidance and record-keeping support
Your own dedicated accountant
Tax planning reviewed every quarter
Support switching from another provider
Who are these services for?
At Caroola, we provide fixed-fee accounting for sole traders and self-employed people across every kind of business, from a first year freelancer to an established self-employed professional.
We’re also highly experienced with contractors, so if that’s how you work, we can give tailored guidance.
How Much Does Self-Employed Accounting Cost?
Your Self Assessment is included as standard, not charged as an extra.
Packages start at £28 + VAT a month for sole traders and self-employed businesses. That covers your core accounting, including your Self Assessment tax return.
If your circumstances change, VAT registration, payroll for extra staff, or a move to a limited company, we’ll talk you through what that means for your package before anything changes.
Sole Trader
- Self Assessment filing
- Bookkeeping software
- Dedicated accountant
- MTD ITSA software
- Corporation Tax & VAT filing
- Annual Accounts
- Real-time tax insights
Limited Company
- Self Assessment filing
- Bookkeeping software
- Dedicated accountant
- MTD software
- Corporation Tax & VAT filing
- Annual Accounts
- Real-time tax insights
Partnerships & LLP
- Self Assessment filing
- Bookkeeping software
- Dedicated accountant
- MTD ITSA software
- Corporation Tax & VAT filing
- Annual Accounts
- Real-time tax insights
Speak to an Expert Accountant Today
Ready to work together or interested in learning more? Get in touch with the team to start a conversation.
FAQs
- Do I Need an Accountant for Self Assessment?
Not necessarily. If your income is straightforward and you’re comfortable with the process, filing it yourself is realistic. Many self-employed people use an accountant once their finances get more complex, or simply to save time each year.
- Is My Self Assessment Included in My Accounting Package?
Yes. Your Self Assessment tax return is part of your core accounting fee, not charged separately.
- How Much Does Self-Employed Accounting Cost?
Packages start at £28 + VAT a month, covering your core accounting and your Self Assessment tax return.
- Can You Help Me Register as Self-Employed?
Yes. We can register you with HMRC directly or guide you through the process if you’d rather do it yourself.
- Can I Switch to Caroola Part-Way Through the Year?
Yes. No need to wait for year end. We manage the handover with your current provider.
- Are There Any Additional Costs?
Not for your core accounting or your Self Assessment, both are included. VAT registration, payroll for additional employees, or moving to a limited company are priced separately or included as standard in an upgraded package if and when they apply to you
The knowledge hub
Do I Need an Accountant if I’m Self-Employed?
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Benefits of having an accountant
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How to Become a Freelance, Self-Employed, Mobile Hairdresser
Making Tax Digital for the Self-Employed and Small Businesses
Making Tax Digital for Landlords
Partner Blog: How to get Funding for Your Business
How to Choose the Right Savings Bank Account for Your Business
Benefits of Tide Business Banking
Why Every Business Needs a Separate Bank Account
