Need help filing your Self Assessment tax return?
HMRC may have asked you to file a Self Assessment tax return because of your income, savings, property or other sources that are not fully dealt with through PAYE. We prepare accurate returns, check that allowances and reliefs are applied where they should be, and can deal with HMRC on your behalf.
Who we help
Many people need a Self Assessment tax return each year, including:
- Company directors
- Landlords with one property or several, in the UK or overseas
- People with overseas income
- Self employed people and partners
- Individuals with share schemes, bonuses or dividends
- People with capital gains from selling property, crypto or other assets
- Anyone who has received a notice to file from HMRC
Reasons why HMRC may have asked you to file a Self Assessment tax return
- Income from rental property
- Income from self employment
- Income from savings or investments
- Taxable dividends
- Foreign income
- High income that affects child benefit
- Capital gains
- Other income that is not taxed at source
Why use an accountant
Some tax returns are simple. Others take more care. Everyone wants the same result: to pay the correct amount of tax, a smooth filing process and fewer hours spent worrying about HMRC.
Our personal tax team will collect the details we need, prepare your tax return, check that the figures are complete, make sure you have claimed any allowances that apply, file the return on time and tell you how much tax to pay and when to pay it. We also deal with HMRC on your behalf if they raise questions.
Key dates for Self Assessment
The Self Assessment timetable follows a simple pattern each year.
- The tax year runs from 6 April to 5 April
- Register for Self Assessment by 5 October if you did not send a return for the previous year
- Paper filing deadline. 31 October
- Online filing deadline. The following 31 January
- Payment deadline. The following 31 January for your balancing payment and first payment on account.
Deadlines for tax year 2025-26
Here are the deadine dates for the tax year up to 5 April 2026.
- Register for Self Assessment by 5 October 2026 if you did not send a return for the previous year
- Paper filing deadline. 31 October 2026
- Online filing deadline. 31 January 2027
- Payment deadline. 31 January 2027 for your balancing payment and first payment on account.
Making Tax Digital for individuals
If you are a landlord or self employed, Making Tax Digital will change the way you report income in future. You can read more in our guide to Making Tax Digital.
Self Assessment tax return frequently asked questions
How much does a Self Assessment tax return cost
Fees vary with the level of detail in your affairs. A return that covers employment and a single rental property will normally cost less than a return that includes several properties, capital gains or overseas income. We can agree the fee with you before we start work.
Do I need an accountant for my tax return
You can file your own tax return, but many people prefer to use an accountant for the reassurance that the figures are correct, the deadlines are met and any reliefs that apply are considered.
Can you help if I have missed the filing deadline
Yes. We can prepare and submit the return, explain any penalties and help you set up a payment plan with HMRC if needed.
Can you act for me if HMRC opens an enquiry
Yes. We can handle all contact with HMRC, explain what they can ask for and guide you through the process.
Do you only help local clients
No. While many clients are close to our offices in Newbury, Swindon and Abingdon, we also support people from across the UK and abroad. Location is not an obstacle.
What’s MTD
Have you heard about Making Tax Digital? Find out more about it and how we can help with it
Contact us
If HMRC has asked you to file a Self Assessment tax return, or if you would like help with the process, our team is ready to support you. Contact one of our offices and we will guide you through the next steps.