--- title: Self-Assessment Tax Returns Service | Accounted --- [Skip to content](https://www.accountedltd.com/services/self-assessment-tax-returns#main-content) [![accounted copy(1)](https://www.accountedltd.com/hs-fs/hubfs/accounted%20copy(1).png?width=198&height=35&name=accounted%20copy(1).png "accounted copy(1)")](https://www.accountedltd.com/?hsLang=en) - Industries [Healthcare](https://www.accountedltd.com/industries/healthcare-accounting?hsLang=en) [Beauty](https://www.accountedltd.com/industries/beauty-accounting?hsLang=en) [Professional Services](https://www.accountedltd.com/industries/professional-services-accounting?hsLang=en) [Startup Tech](https://www.accountedltd.com/industries/startup-tech-accounting?hsLang=en) [E-commerce](https://www.accountedltd.com/industries/ecommerce-accounting?hsLang=en) [Construction Trades](https://www.accountedltd.com/industries/construction-trades-accounting?hsLang=en) [Property](https://www.accountedltd.com/industries/property-accounting?hsLang=en) [Charity & CIC](https://www.accountedltd.com/industries/charity-cic-accounting?hsLang=en) - Services [Bookkeeping](https://www.accountedltd.com/services/bookkeeping?hsLang=en) [VAT Returns](https://www.accountedltd.com/services/vat-returns?hsLang=en) [Management Accounts](https://www.accountedltd.com/services/management-accounts?hsLang=en) [Payroll](https://www.accountedltd.com/services/payroll-services?hsLang=en) [Company Formation](https://www.accountedltd.com/services/company-formation?hsLang=en) [Annual Accounts](https://www.accountedltd.com/services/annual-accounts?hsLang=en) [Business Consulting](https://www.accountedltd.com/services/business-consulting?hsLang=en) [CFO Advisory](https://www.accountedltd.com/services/cfo-advisory?hsLang=en) [Self-Assessment Tax Returns](https://www.accountedltd.com/services/self-assessment-tax-returns) - [About](https://www.accountedltd.com/about?hsLang=en) - [Contact](https://www.accountedltd.com/contact-us?hsLang=en) - Resources [Blog](https://www.accountedltd.com/blog?hsLang=en) - Academy [Account-ED Academy](https://www.accountedltd.com/academy?hsLang=en) [Account-ED Community](https://www.accountedltd.com/academy/community?hsLang=en) [Summer Internships](https://www.accountedltd.com/academy/summer-internships?hsLang=en) [Mentorship](https://www.accountedltd.com/academy/mentorship?hsLang=en) [Schools](https://www.accountedltd.com/academy/schools?hsLang=en) [Courses](https://www.accountedltd.com/academy/courses?hsLang=en) - [Book a Free Consultation](https://31oo85xkgla.typeform.com/to/EdwZPQAo) - [Client Login](https://manager.brightsg.com/signin) This is a search field with an auto-suggest feature attached. - There are no suggestions because the search field is empty. # Self-Assessment Tax Returns Accurate tax returns filed on time for self-employed individuals, directors, landlords, and anyone with untaxed income   Filed by 31 January • HMRC registered • Maximum reliefs claimed - [Book Your Free Consultation](https://31oo85xkgla.typeform.com/to/EdwZPQAo) Your browser does not support HTML5 video. #### Our Partners - ![logo\_11](https://www.accountedltd.com/hs-fs/hubfs/logo_11.png?width=260&name=logo_11.png "logo_11") - ![logo\_10](https://www.accountedltd.com/hs-fs/hubfs/logo_10.png?width=260&name=logo_10.png "logo_10") - ![logo\_8](https://www.accountedltd.com/hs-fs/hubfs/logo_8.png?width=260&name=logo_8.png "logo_8") - ![logo\_7](https://www.accountedltd.com/hs-fs/hubfs/logo_7.png?width=260&name=logo_7.png "logo_7") - ![logo\_2 (2)](https://www.accountedltd.com/hs-fs/hubfs/logo_2%20(2).png?width=380&name=logo_2%20(2).png "logo_2 (2)") - ![logo\_9-1](https://www.accountedltd.com/hs-fs/hubfs/logo_9-1.png?width=320&name=logo_9-1.png "logo_9-1") - ![logo\_12-1](https://www.accountedltd.com/hs-fs/hubfs/logo_12-1.png?width=320&name=logo_12-1.png "logo_12-1") ## 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.     [Book Your Free Consultation](https://31oo85xkgla.typeform.com/to/EdwZPQAo) ## Self Assessment Tax Return Services for Accurate Filing and HMRC Compliance ![file-text](https://www.accountedltd.com/hubfs/file-text.svg) ###### SA100 Preparation & Submission Complete preparation and online filing of your annual Self Assessment tax return. ![percent](https://www.accountedltd.com/hubfs/percent.svg) ###### Tax Calculation Accurate computation of income tax, National Insurance, dividends, rental income, and capital gains. ![trending-down](https://www.accountedltd.com/hubfs/trending-down.svg) ###### Expense & Relief Optimisation Identification and inclusion of all allowable expenses and tax reliefs to reduce your liability. ![layers](https://www.accountedltd.com/hubfs/layers.svg) ###### Multi-Source Income Review Full review of income from employment, self-employment, property, and investments to ensure complete and compliant reporting. ![user-plus](https://www.accountedltd.com/hubfs/user-plus.svg) ###### HMRC Registration Support Assistance with registration and UTR setup for new filers or those switching accountants. ![send](https://www.accountedltd.com/hubfs/send.svg) ###### Digital Filing & Confirmation Secure submission directly to HMRC with proof of receipt and filing confirmation. ![clock-1](https://www.accountedltd.com/hubfs/clock-1.svg) ###### 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 ![quote (1)](https://www.accountedltd.com/hubfs/quote%20(1).svg) 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! ![review](https://www.accountedltd.com/hs-fs/hubfs/unnamed.png?width=144&height=144&name=unnamed.png) Busola B. ![quote (1)](https://www.accountedltd.com/hubfs/quote%20(1).svg) 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. ![unnamed (1)](https://www.accountedltd.com/hs-fs/hubfs/unnamed%20(1).png?width=120&height=120&name=unnamed%20(1).png) Imi Adedapo ![quote (1)](https://www.accountedltd.com/hubfs/quote%20(1).svg) My consultation with them was very insightful and clear - would 100% recommend to any SME, they are very professional!   ![unnamed (2)](https://www.accountedltd.com/hs-fs/hubfs/unnamed%20(2).png?width=144&height=144&name=unnamed%20(2).png) Grace Kamara ![quote (1)](https://www.accountedltd.com/hubfs/quote%20(1).svg) 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.     ![Untitled design (37)](https://www.accountedltd.com/hs-fs/hubfs/Untitled%20design%20(37).png?width=500&height=500&name=Untitled%20design%20(37).png) Barbara A. ## Frequently Asked Questions What are you looking for? - ### Who needs to complete a self-assessment? 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. - ### When is the self-assessment deadline? 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. - ### What information do I need to provide?   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. - ### Can you help me register with HMRC for self-assessment?   Yes, if this is your first time filing, we’ll help you register and get your Unique Taxpayer Reference (UTR). - ### What happens if I file late? 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. Can't find what you are looking for? [We would like to chat with you.](https://www.accountedltd.com/contact-us?hsLang=en) ## 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. [Book Your Free Consultation](https://31oo85xkgla.typeform.com/to/EdwZPQAo) ## Get In Touch #### Resources - [Blog](https://www.accountedltd.com/blog) - [Academy](https://www.accountedltd.com/academy) #### Community - [Instagram](https://www.instagram.com/accountedltd) - [TikTok](https://www.tiktok.com/@accountedltd) - [LinkedIn](https://www.linkedin.com/company/accountedltd/posts/?feedView=all) - [WhatsApp](https://api.whatsapp.com/send/?phone=442035764072) --- [![Absolut theme logo](https://www.accountedltd.com/hs-fs/hubfs/raw_assets/public/@marketplace/Kohorta/Absolut/images/brand/absolut-logomark-nobg.png?width=30&height=37&name=absolut-logomark-nobg.png "Absolut theme logo")](https://www.accountedltd.com/?hsLang=en) ©Copyright 2025. 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