Self-Assessment Tax Returns for UK Taxpayers Filed Accurately Every Time
Filing your own self-assessment is stressful, time-consuming, and easy to get wrong. ABM Chartered Accountants prepares and files your tax return with every allowable expense claimed, every relief applied, and every deadline met so you pay the right amount and nothing more.
Your Tax Return Prepared, Checked, and Filed
A self-assessment tax return reports your total income to HMRC and calculates the tax you owe. It covers employment, self-employment, dividends, rental income, capital gains, and any other taxable income. ABM Chartered Accountants prepares your return accurately, claims every relief you are entitled to, and files it with HMRC before the deadline.
Our ICAEW and ACCA qualified accountants gather your income and expense records, calculate your tax liability across all sources, apply the correct personal allowances and reliefs, complete the return with all supplementary pages required, and submit it online to HMRC on your behalf.
What Our Self-Assessment Tax Service Covers
From preparing your return to filing it with HMRC, here is how ABM Chartered Accountants makes sure your self-assessment is accurate, complete, and submitted on time.
Tax Return Preparation
Gathering your income, expenses, and reliefs to prepare an accurate self-assessment return.
Income Tax Calculation
Calculating your income tax liability across employment, self-employment, dividends, and more.
Allowable Expense Claims
Identifying and claiming every legitimate expense to reduce your taxable income and your bill.
Capital Gains Reporting
Reporting gains from property, shares, or other assets and applying all available reliefs.
Rental Income Returns
Preparing the property pages of your return with correct income, expenses, and capital claims.
HMRC Submission & Payment
Filing your return online with HMRC before the deadline and advising on payment dates due.
Pay What You Owe and Not a Penny More
Many taxpayers overpay simply because they miss legitimate expense claims, overlook available reliefs, or calculate their liability incorrectly. Others underpay without realising it, which leads to penalties and interest from HMRC. ABM Chartered Accountants gets it right first time, ensuring your return is accurate and your tax position is optimised within the rules.
Filing late costs money. The penalty for missing the 31 January deadline is 100 pounds immediately, with further daily penalties and interest after three months. We file your return early, well before the deadline, so you know what you owe in advance and can plan your payments accordingly.
Self-Assessment Tax Returns for Taxpayers Across the UK
Based in Canary Wharf, London, ABM Chartered Accountants prepares and files self-assessment tax returns for individuals throughout the UK. Everything is handled online, so your location makes no difference.
London
Chartered accountants in London for all businesses.
Birmingham
Accounting in Birmingham for local businesses.
Leeds
Glasgow
Professional accountants based in Glasgow.
Manchester
Trusted accounting firm in Manchester.
Edinburgh
Tax and accounting experts in Edinburgh.
Liverpool
Dedicated accountants for Liverpool businesses.
Bristol
Reliable accounting services across Bristol.
Belfast
Trusted accounting specialists based in Belfast.
Cardiff
Reliable accountants serving businesses in Cardiff.
Milton Keynes
Professional accounting support in Milton Keynes.
Canary Wharf
Expert accounting services in Canary Wharf.
Self-Assessment Returns for Every Income Type
We prepare self-assessment returns for sole traders, freelancers, landlords, company directors, higher-rate earners, contractors, partners in partnerships, and anyone with untaxed income. Whatever your tax situation, we handle it.
Why Taxpayers Choose ABM for Self-Assessment
Chartered Tax Professionals
ICAEW and ACCA qualified preparing every tax return.
Every Relief Claimed
Allowances and expenses identified so you never overpay.
Filed Before the Deadline
Returns submitted early so you plan payments confidently.
How We Work
Initial Consultation
Set Up and Onboard
Ongoing Support
We provide regular reviews and proactive advice to keep your finances optimised and HMRC-compliant.
Get in Touch Today
Whether you need help with your tax return, payroll, VAT, or business advisory, our qualified UK accountants are ready to provide clear, practical guidance for your specific needs.
Book a Consultation
Fill in the form below and one of our expert accountants will contact you promptly to discuss your accounting and tax requirements.
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Frequently Asked Questions
Here are answers to the self-assessment questions we hear most often. Contact our team for tailored guidance.
Do I need to file a self-assessment tax return?
You need to file a self-assessment return if you are self-employed, a company director, a landlord with rental income, a higher-rate taxpayer with untaxed savings income, or if you earned more than 150,000 pounds in the tax year. HMRC may also require one in other circumstances.
What is the deadline for filing?
The deadline for filing an online self-assessment tax return is 31 January following the end of the tax year. For the 2025/26 tax year, the deadline is 31 January 2027. ABM Chartered Accountants files your return well before the deadline to avoid any last-minute risk.
What expenses can I claim?
The expenses you can claim depend on your income source. Self-employed individuals can claim business costs such as materials, travel, insurance, and professional fees. Landlords can claim property costs such as repairs, agent fees, and mortgage interest at the basic rate. We identify every claim you are entitled to.
What happens if I file late?
If you miss the 31 January deadline, HMRC charges an automatic 100-pound penalty even if you owe no tax. After three months, daily penalties of 10 pounds apply for up to 90 days. After six and twelve months, further penalties are charged. Interest also accrues on unpaid tax.
Will Making Tax Digital affect my self-assessment?
Yes. From April 2026, self-employed individuals and landlords with income above 50,000 pounds must keep digital records and submit quarterly updates to HMRC. The threshold drops to 30,000 pounds from April 2027. ABM Chartered Accountants helps you prepare for these changes in advance.
How much does it cost to have my return prepared?
Fees depend on the complexity of your tax affairs and the number of income sources involved. A straightforward return for a single income source costs less than one with rental property, capital gains, and foreign income. We offer fixed-fee pricing. Contact ABM Chartered Accountants for a quote.