Speak to an expert
What we do

What’s included in your self assessment tax return?

Make your tax return process quick and efficient with the dns accountants. We help you with:

  • A UK-based tax return accountant to fill your returns
  • An expert advice to claim eligible expenses and tax reliefs
  • Current or previous tax year filing
  • Calculation of tax bill
  • Tax return filed to HMRC
  • Support to save on your tax bill
Speak with an expert

Free Business Software!

Say Goodbye to Bookkeeping Hassles: Nomi offers
accounting Free Receipt Processing and big savings!

Get paid via cards
and direct debit

Built in payment

Create sales invoices
and direct debit

Hasslefree Bookkeeping

Get paid via cards
and direct debit

Snap pictures of
receipts using the
mobile app

Get paid via cards
and direct debit

Connect your bank
for easy reconciliation

Get paid via cards
and direct debit

Track your debtors
and creditors

Get paid via cards
and direct debit

Free Receipt Processing

Get paid via cards
and direct debit

Free consultation

Book into a free consultation with one of our friendly accounting experts, we’ll determine how we can help you and what services you require.

Book now

Call or email us

Email enquiry@dnsaccountants.co.uk or call 03300 886 686 and speak with one of our friendly accounting experts.

Meet in person

Visit one of our 27 offices based all over the UK for a meeting in-person. Alternatively, we’re happy to meet over Zoom or any other video streaming platform.

Find your nearest office
Self-assessment services

Who Benefits from Our Self-Assessment Services

Whether you're a business owner, landlord, contractor, freelancer, startup or non-resident, we’re here to help you file your self-asssessment. Online and in person.

Freelancers and Contractors

Accurate and timely filings to keep you compliant and tax-efficient.


Self-Employed Professionals

Navigate the complexities of self-employment taxes with ease.



Expert advice on property income, expenses, and allowable deductions.



Capital gains, dividends, and other investment income meticulously accounted for.


High-Net-Worth Individuals

Tailored strategies for complex financial portfolios.


Partnerships and LLPs

Comprehensive tax solutions for business partners and members.


Overseas Income Earners

Handling foreign income and double taxation issues.


Cryptocurrency Traders, Investors & Miners

Navigating the tax implications of buying, selling, and holding cryptocurrencies.


Award-winning experts trusted by many

We're proud to be amongst the best accountants in the UK, demonstrated by the number of awards we've won over the years. We're also a top-100 accounting firm.


What Our Clients Think

Our promise

How We'll Simplify Your Self-Assessment

Efficient Filing

Timely and accurate submission of your
self-assessment tax return to HMRC

Strategic Tax Planning

Identify deductions and credits to
minimize your tax liability

Expert Consultation

One-on-one guidance to navigate the
complexities of self-assessment

Foreign Income Reporting

Assistance with declaring overseas
income and understanding double taxation

Year-Round Support

Ongoing advice and updates to
keep you tax-efficient throughout the year

How to fill in a Self Assessment tax return: the dos and don’ts

Filling out your self-assessment tax return is an easy process. Still, people find it difficult because of some daunting tasks. Having these below instructions can help you to avoid any difficulties while filing your tax return:

  • Declare any extra earnings above £1,000
  • Include any income from renting a property
  • Check whether you are eligible for the marriage allowance
  • Include savings interest and any share dividends
  • Don’t miss out on pension tax relief
  • Claim gift aid at a higher rate
  • Don’t forget any crypto gains
  • Don’t miss the deadline
  • Claim tax relief for job expenses
  • File your Self-assessment tax return online, through post or via a few service providers.
Book a FREE consultation

Share your details in the form below and one of our friendly experts will be in your touch to give you a free consultation

Submitting your details indicates that you are happy for dns to contact you about relevant services and offers. You can unsubscribe at any time.

Trusted resources

All the information you need to help you save tax, run your business and achieve your goals.

Self assessment for overseas landlords
Self assessment for overseas landlords

If you let out a property in the UK and you are UK non-resident or you are a UK resident that lives...

Filing income tax return when self employed
Filing income tax return when self employed

If you’re self-employed then you will more than likely need to do a Self Assessment tax return.


We take care of...

We support and advise thousands of people just like you across the UK and abroad
with our amazing team of experts.

years’ experience

Speak to one of our expert accountants

Answers to self-assessment’s most frequently asked questions

Self-assessment is a system used by HM Revenue and Customs (HMRC) to collect income tax. If you're self-employed, a landlord, or have other income outside of your regular employment, you may need to complete a self-assessment tax return.

Completing a self-assessment can be complex and time-consuming. A self-employed accountant can help you navigate the intricacies, ensure accuracy, and potentially save you money by identifying tax-saving opportunities.

Our self-assessment package includes income and expenditure analysis, tax calculation, filing of the tax return, and liaising with HMRC on your behalf, among other services.

The tax returns are submitted according to the tax years not calendar years. For the 2022/23 tax year – running 6 April 2022 to 5 April 2023 – you would:

  • Need to register for Self-assessment by 5 October 2023 if you submit it the first time.
  • Submit a return by midnight 31 October 2023 in case of filing a paper tax return.
  • Submit a return by midnight 31 January 2024 in case of filing online.
  • Pay the tax you owe by midnight on 31 January 2024.

If you fail to meet these deadlines, you might be charged a late payment penalty fee and interest.

Yes, we can assist you with late filings and help minimize penalties and interest charges from HMRC.

To register for self-assessment tax returns in the UK, you'll need to follow these:

  • Submitting it the first time, you'll need to register it first for Self-assessment. Whether you are self-employed, in a partnership or not a self-employed individual, there are different ways to register for it.
  • A Unique Taxpayer Reference (UTR) will be sent after registering for self-assessment.
  • If you submit a Self-assessment form online, a Government Gateway account is required to set up. You will get a letter with your UTR and follow the instructions mentioned in that letter.
  • You'll receive an activation code by mail, which you'll use to activate your online self-assessment account.
  • Once your account is activated, you can complete your tax return.

If you have already submitted it before, you can register and set up accounts with your old UTR.

Yes, if you are a Director of a limited company, you are generally required to complete a self-assessment tax return. This is especially true if you receive income that is not taxed at source or if you receive dividends from the company.

Yes, you can file a self-assessment tax return online through the HMRC website. This is often the most convenient method and allows you to instantly submit your tax return, calculate your tax liability, and receive immediate confirmation.

Yes, if you are operating as a sole trader, you are required to complete a self-assessment tax return. This is how you will report your business income and expenses to HMRC and calculate your sole trader self assessment tax liability.

To claim tax relief on self-assessment, you'll need to include details of your eligible expenses when completing your tax return. This can include costs like business expenses for the self-employed, or charitable donations if you're claiming Gift Aid. Make sure to keep all relevant receipts and records to substantiate your claims.

The required information needed to fill in a self-assessment tax return While submitting:

  • National Insurance number.
  • Expenses details related to self-employment.
  • Ten-digit Unique Taxpayer Reference (UTR).
  • Charity or pension contributions that might be eligible for tax relief.
  • Income details of unpaid tax for the tax year, such as dividends, self-employment income and interest on shares
  • P60 or records that show the tax already paid on income you received.

Yes, you can pay a self-assessment tax return in instalments in the UK. HMRC allows it to pay in monthly or quarterly instalments. It can spread the cost of paying taxes yearly to manage finances easily. But these will be an advance on the next tax bill. Also, you can’t pay for a previous tax bill in instalments.

Paying a self-assessment tax bill depends on the length of time. Same or next-day payment.

You can pay through:

  • Online bank account
  • Online or telephone banking (Faster Payments).
  • Clearing House Automated Payment System (CHAPS).
  • Debit or corporate credit card online.
  • Your bank or building society.

3 working days

You can pay through:

  • Bacs
  • Direct Debit (if you’ve set one up with HMRC before).
  • Cheque through the post.

5 working days

You can pay through:

  • Direct Debit (if you have not set one up with HMRC before).

If you miss the deadline to submit a return, bill payment or register, you will have to face a penalty. Up to three months late filing or paying tax £100 will have to be paid. If it is more than three months, the penalty will be more. You can also appeal with a reasonable excuse.

If you can't afford to pay a self-assessment tax bill, contact us at 03300 886 686 to get expert advice. This number is for everyone, whether you are a self-employed person or a UK business holder.

Still have questions?

Free Business Software!

Limited time only!

Free Business Software

Say Goodbye to Bookkeeping Hassles: Nomi offers Free Receipt Processing and big savings!

  • Built in payment solutions.
  • Track profitability, debtors and creditors
  • Snap pics of receipts with the mobile app
  • Free Receipt Processing
  • Hasslefree Bookkeeping
  • Cost Reduction
Get Started
Close nomi