Self-Assessment Tax Returns
Accurate tax returns filed on time for self-employed individuals, directors, landlords, and anyone with untaxed incomeOur Partners
Get expert Advice
Our self-assessment service takes the stress out of completing your annual tax return. Whether you're self-employed, a company director, a landlord, or earning income outside of PAYE, we make sure your return is filed accurately and on time. We handle the full process - from gathering your records to calculating your liability - so you can avoid penalties and keep HMRC off your back.
Self Assessment Tax Return Services for Accurate Filing and HMRC Compliance
SA100 Preparation & Submission
Complete preparation and online filing of your annual Self Assessment tax return.
Tax Calculation
Accurate computation of income tax, National Insurance, dividends, rental income, and capital gains.
Expense & Relief Optimisation
Identification and inclusion of all allowable expenses and tax reliefs to reduce your liability.
Multi-Source Income Review
Full review of income from employment, self-employment, property, and investments to ensure complete and compliant reporting.
HMRC Registration Support
Assistance with registration and UTR setup for new filers or those switching accountants.
Digital Filing & Confirmation
Secure submission directly to HMRC with proof of receipt and filing confirmation.
Fast Turnaround
Returns prepared within 10 working days once all records are received.
Client Advantages
Tax Savings
Optimised claims for allowances, expenses, and reliefs - keeping more of your income in your pocket.
Expert HMRC Support
We handle all queries, correspondence, and follow-ups with HMRC on your behalf.
Time Back to Your Business
Focus on growing your business while we manage the paperwork and deadlines.
Early Preparation
Avoid the January rush - file early for peace of mind and better cash flow planning.
What our customers are saying
Been with accounted for 4 years now and couldn't ask for better accountants. They are so professional, friendly and provide all services in a timely manner. Thank you for always going above and beyond!
Busola B.
Owning a business I have struggled with doing my own accounts. Accounted LTD have literally taken the burden off my shoulders and I will continue to use their services.
Imi Adedapo
My consultation with them was very insightful and clear - would 100% recommend to any SME, they are very professional!
Grace Kamara
Accounted has helped me so much and has made my accounting back-end management much easier! Would 100% recommend to any SME that needs support.
Barbara A.
Frequently Asked Questions
What are you looking for?-
Anyone self-employed, a company director, a landlord, or who earns untaxed income (such as from investments or side hustles) must complete a self-assessment.
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Online submissions must be filed by 31 January following the end of the tax year. For example, the 2023/24 tax year must be filed by 31 January 2025.
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You’ll need records of all your income (employment, self-employment, rental, dividends, etc.), expense receipts, and P60/P45/P11D forms if you’re employed.
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Yes, if this is your first time filing, we’ll help you register and get your Unique Taxpayer Reference (UTR).
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HMRC charges an immediate £100 penalty, with additional daily fines and interest if the delay continues. Working with us ensures you never miss a deadline.
Ready to file your tax return stress-free?
Don't leave your self-assessment until the last minute. Our expert service ensures your return is filed accurately and on time, with every allowable expense claimed to minimise your tax bill. Book your free consultation today and make this tax year your easiest yet.