Self Assessment Tax Return is a trading style of ACCOTAX London Ltd, offering expert Self Assessment tax return services in London.
Trusted by 250+ businesses
Self Assessment Tax Return Services
Avoid penalties, late fees, and the stress of doing it yourself. Our experienced tax experts ensure your Self Assessment Tax Return is filed accurately, on time, and in full compliance with HMRC regulations giving you complete peace of mind.
What's Includes
£199+ VAT
One-Off Package
- Self Assessment Tax Return (SA100)
- Income from Employment or Self-Employment
- Dividend & Investment Income Reporting
- HMRC Agent Registration
- Tax Liability Calculation
- Digital Submission & Filing Confirmation
What Our Client Say About Us
All our clients trust us to file self-assessment tax return with accurate financial reporting. Taking the initiative, we explore how to save taxes, ensure that your business grows with compliance and trust.
Who Needs to File a Self Assessment?
You must file a Self Assessment Tax Return if you are:
Sole Trader
Expert Self Assessment support tailored for self-employed professionals and sole traders.
Company Director
HMRC-compliant tax returns for directors, covering salary, dividends, and benefits.
Landlords
Expert tax returns to keep your rental income compliant and stress-free.
High Networth Individuals
Expert tax support for High Net Worth Individuals—accurate, discreet, and fully compliant.
CIS Constractor
A Limited Liability Partnership (LLP) offers business flexibility with personal asset protection for each partner.
Partnership Tax Return
Expertly prepared Partnership Tax Returns that ensure full HMRC compliance and accurate profit sharing between partners.
Why Choose Us for Self Assessment Tax Return
From preparing and filing your Self Assessment Tax Return to calculating refunds, checking eligibility for tax reliefs, and handling HMRC submissions — everything you need is covered in one complete service.
- Registered HMRC agents
- Quick turnaround – usually within 48 hours
- Maximum tax savings
- Friendly support via phone, email, and WhatsApp
- No hidden fees – fixed pricing
- 100% HMRC-compliant filing
What’s Included in Our Service
From preparing and filing your Self Assessment Tax Return to calculating refunds, checking eligibility for tax reliefs, and handling HMRC submissions — everything you need is covered in one complete service.
- Gathering your income details
- Calculating your tax liability and National Insurance
- Claiming all eligible allowances and deductions
- Completing and submitting your SA100 form
- Dealing with HMRC on your behalf
- Providing a final tax summary for your records
Who Benefits from Our Services?
Our Self Assessment Tax Return services are available for all individuals, including freelancers and businesses, to comply with tax laws. Moreover, we incorporate the maximum tax deductions and provide transparency to allow you to grow and not spend time shuffling paperwork.
What Makes Our Services for Self Assessment Tax Return Unique?
We take pride in saying that we are the only company that guarantees a turnaround time of 7 days upon delivery of all the documents, without missing any deadline. Yes, we are devoted to speed and accuracy, which indeed sets us apart.
Self Assessment Tax Return (SA100)
Prepare and file your annual HMRC self-assessment tax return.
Income from Employment or Self-Employment
Report and manage all earnings from jobs or freelance work.
Dividend & Investment Income Reporting
Accurately declare dividends and investment profits for taxation.
Rental Income Accounting
Track and report income from rental properties.
HMRC Agent Registration
Register as a tax agent to manage clients’ HMRC affairs.
Tax Liability Calculation
Determine the precise amount of tax owed.
Your Efficient Self Assessment Tax Return Partner
We are determined to help you save the highest tax before filing your returns, and this indeed makes us stand out as we do not just comply but make the most of your financial stance. So, do not wait anymore and book a free consultation right now!
Frequently Asked Questions - Self Assessment Tax Return
Got more questions? Ask away! Get in touch with our UK-based support team either on info@selfassessmenttaxreturn.accountants or via the live chat on our homepage. They’re happy to help.
Who should file a Self Assessment Tax Return in London?
You should file in case you are self-employed, a company director, receive untaxed income (rent, dividends), or have complicated tax issues. Employees on salaries might require it in case they have supplementary income.
When is the Self Assessment Tax Return Deadline for the year 2024 to 2025?
Paper returns: 31 October 2025. Online returns: 31 January 2026. By 31 January 2025, the payment is made, and (where applicable) a second payment on account should be made by the end of 31 July.
What are the documents that I have to prepare for Self Assessment?
- Revenue documents: invoices, bank statements, and rental statements.
- Costs: receipts, mileage records.
- Other: P60/P45/P11D, dividend vouchers, interest statements and your UTR and NI number.
How do I use an accountant for my Self Assessment tax return this year?
- For correct calculations and filing ready to be handed to HMRC, the following are the benefits of hiring an accountant:
- Tax reliefs: proactive allowances and reliefs.
- Time saved: efficient process, reminders and assistance in case of queries of HMRC.
But what will happen in case of failure to meet the deadline or an error?
HMRC can impose fines and interest. We can assist you to correct the returns, appeal where necessary and put a plan to prevent future fines.
What happens if I miss the deadline or make an error?
Missing the deadline results in an automatic £100 penalty, with additional daily fines and interest on unpaid tax. Errors can lead to penalties or HMRC enquiries. Using a professional reduces the risk of mistakes and late submissions.
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