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HMRC Self Assessment Tax Returns by Qualified Accountants

File Your Tax Return online with Confidence

Filing your HMRC Self Assessment doesn’t need to be stressful. At DMP Accountants, we prepare and provide professional review so your return is filed correctly, on time and with every relief you’re entitled to - exceptionally quick turnaround.

Fixed Transparent Pricing - UK Tax Returns (No VAT)

Comprehensive Self Assessment Tax Return

Full income review, reliefs applied and submission to HMRC. 

£129 - How to get started

Why Clients Choose DMP - As Their Accountants

  • Quality based Accountants - who deliver every time
  • Real accountants, not just automated software
  • Nationwide online service with secure document upload
  • HMRC-recognised filings
  • Fast turnaround times before the 31 January deadline - exceptionally quick
  • Personalised support for directors, landlords and freelancers

View Client Testimonials on DMP Accountants

31 January 2026 - Self Assessment Tax Return Deadline

 Beat the deadline without the scramble. Last-minute returns don’t end well.
If your tax return is still on your list, we can take it off properly. Send your information, we prepare the return, apply the reliefs and submit to HMRC. No chasing. No guesswork. No January panic.


Quick turnaround. Most returns are completed within a few working days once documents are received. Availability becomes limited as the deadline approaches.

How to Get Started

Step 1 - Fill out the form on our Contact page
In the “Services you require” box, type Tax Return, and mention which tax year it relates to (for example, 2024/25).
Each tax year runs from 6 April to 5 April (for example, 6 April 2024 to 5 April 2025).
Once submitted, we’ll email you a secure link to our Self Assessment Tax Return questionnaire. 


Step 2 - Sign the engagement letter
You’ll receive a digital engagement letter to review and sign electronically. This confirms the scope of our service and allows us to proceed with your return. 


Step 3 - Provide ID and proof of address
We’ll then request a valid photo ID (passport or driving licence) and proof of address (bank statement or utility bill dated within the last 3 months). Your address history should cover the past 3 years in total. 


Step 4 - We handle the rest
Once we’ve received your information, our team carefully prepares your tax return - applying all eligible tax reliefs and allowances.
You’ll then receive a copy of your draft tax return, tax computation and summary figures for review.
Once you confirm you’re happy with the return, we’ll submit it securely to HMRC and send you confirmation of successful filing. 

Start Your Tax Return – File with DMP Accountants

FAQs - Self Assessment & HMRC Deadlines

 31 January 2026 for online returns relating to the 2024/25 tax year.  


Self-employed individuals, company directors, landlords, or anyone receiving untaxed income such as dividends or capital gains. 


Once we receive your completed questionnaire and documents, most Self Assessment returns are completed within a few working days. During the January peak period, turnaround times may increase as demand rises, so early submission is strongly advised. 


Yes. The £129 fee covers preparation, full review and online submission of your tax return. 


HMRC applies an initial £100 penalty for late filing, followed by daily charges if it remains outstanding. 


Yes. We can prepare and file previous years’ returns, calculate penalties and liaise with HMRC where required. 


What's included in your Tax Return Service

We prepare and submit your HMRC Self Assessment accurately and on time, covering all relevant income types, reliefs and disclosures. Every return is reviewed by a qualified accountant to ensure full compliance and tax efficiency. 


Every client’s tax position is different, so our service covers the full range of HMRC Self Assessment schedules. 

SA100 - Core Self Assessment Tax Return

We prepare and file your SA100 form, summarising income, reliefs and liabilities. Each return is reviewed by a qualified accountant and reconciled with HMRC records to ensure full compliance. 

SA102 - Employment Income

We include all PAYE income, benefits and allowable expenses under the SA102 schedule, ensuring alignment with your P60/P45 data and accuracy across multiple employments. 

SA105 - Property Income

We complete your SA105 schedule for UK and overseas rental income, maximising allowable expenses and advising on when incorporation might be more tax-efficient. 

SA108 - Capital Gains

We calculate gains on shares, crypto or property disposals, applying reliefs like PPR, BADR or the annual exemption to minimise your tax exposure. 

SA101 - Dividends and Additional Income

We include all dividends, interest, and pension income under the SA101 schedule, ensuring correct application of dividend and savings allowances. 

SA109 - Non-Resident or Overseas Income

For non-residents or those with overseas income, we prepare the SA109 schedule, applying the correct residence and domicile rules and double-taxation reliefs. 

Conclusion & Appeals

Whether your return includes one schedule or several, every Self Assessment is reviewed for accuracy, timing and tax-saving opportunities - so you stay compliant and avoid unexpected HMRC issues. 


If you need to appeal against HMRC decisions and need help due to miscommunications and differences between you reality and HMRC's assumptions, get in touch and see how we can help you resolve your situation. 


UK accountants providing valuation, tax and business advisory services with precision and integrity. 

 Serving clients across the UK and overseas, including Wakefield, Leeds, Manchester and London. 


Copyright © 2024 DMP Accountants & Valuations Limited - All Rights Reserved.

Registered in England and Wales - Company No. 15392114

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