
Filing your Self Assessment tax return in the UK doesn’t have to be stressful. With us, we simplify the process of submitting your tax return online, ensuring accuracy, timeliness, and compliance with HMRC regulations. Whether you are self-employed, a freelancer, or an individual with additional income sources, our expert team is here to guide you through every step.
The online submission of self-assessment tax returns offers a secure, efficient way to meet your tax obligations, saving you from the complexities of manual filing. filing a self-assessment tax return online minimises the chance of errors and allows quicker processing. With us, you can leverage our user-friendly online tools and expert guidance to ensure a seamless process from start to finish.

To ensure accurate data entry, compile essential documents like income statements, expense records, bank interest details, and pension contributions. Our checklist can help you organise these documents efficiently..

Our team assists you in filling out the SA100 tax form accurately, capturing all relevant income and allowable expenses. We’ll advise on any tax reliefs and deductions applicable to maximise your returns and minimise liabilities.

Once your form is complete and reviewed, we file your self-assessment tax return online directly to HMRC. By handling this process online, we ensure quicker processing and verification.

After submission, we provide you with confirmation and follow up with any updates from HMRC. Should there be any further actions required, Online Accountant remains by your side to address them promptly.
Self Assessment is the UK tax system used by HMRC to ensure individuals and businesses pay the correct amount of Income Tax. Unlike employees whose taxes are deducted automatically through PAYE (Pay As You Earn), Self Assessment requires taxpayers to report their own income, expenses, and any other financial activities over the tax year.
By completing a Self Assessment tax return, HMRC can calculate exactly how much tax is owed based on all sources of income, including employment, self-employment, rental income, dividends, and savings. This system allows taxpayers to take responsibility for accurately declaring their income and claiming eligible deductions, ensuring compliance with UK tax laws. Deadlines are strict: paper returns must be submitted by 31st October and online returns by 31st January following the end of the tax year, with penalties for late submissions or underpayment.
In the UK, several groups of people are required to file a Self Assessment tax return. Sole traders and self-employed individuals must report all business income and expenses to calculate taxable profits. Business partners in partnerships also need to declare their share of profits
Additionally, individuals with extra sources of income, such as rental income, freelance work, dividends from investments, foreign income, or capital gains, are also obligated to complete a Self Assessment. Certain company directors, high earners, and those claiming specific tax reliefs may also be required to file. Even if tax has been paid through PAYE, individuals may need to submit a return to claim allowances, report additional income, or correct any discrepancies. Filing Self Assessment on time ensures compliance, avoids penalties, and provides an accurate record of income for future financial planning.

Outsource Accounting offers a suite of core financial and accounting services designed to support businesses of all sizes. These include monthly bookkeeping, accounts preparation, corporation tax filing, self-assessment tax returns, payroll management, and VAT return submissions.

One of the standout benefits highlighted on the website is clear and affordable pricing. Outsource Accounting emphasises flat-rate pricing with no hidden charges — meaning you know what you'll pay from the start, whether you're a small start-up or an established company.

Instead of automated bots or generic financial software, the services are delivered by a real team of expert accountants who provide personalised one-on-one support. This means you get direct access to professionals who can explain complex financial requirements.

Outsource Accounting doesn't just manage numbers — they provide insightful financial reporting that goes beyond basic bookkeeping. These reports are designed to give you a clearer picture of your company's financial health, helping you understand profitability, cash flow trends, and tax obligations.

According to the website's 'About Us' section, the company started with a simple mission: to make professional accounting affordable and accessible to all UK businesses. With over two decades of experience and more than 1,000 clients served, Outsource Accounting positions itself as a reliable and trustworthy partner committed to helping businesses.

A core part of the service is handling all regulatory filings required in the UK. This includes Corporation Tax returns, VAT return submissions, annual accounts filings with Companies House, and Self-Assessment tax returns for business owners. Outsource Accounting liaises with HM Revenue & Customs (HMRC) and Companies House on your behalf.
Ease of Use Our simple, user-friendly online service guides you through every step of the Self Assessment process. No confusing jargon—just clear, concise instructions
Expert Support If you have any questions, our team of tax professionals is available to provide guidance and help resolve any issues.
tickCircle Accuracy and Compliance We meticulously check your return to ensure it meets all of HMRC's requirements. With us, you can be confident that your tax return is error-free and fully compliant.
Timeliness We ensure your Self Assessment is filed on time, every time—avoiding penalties and ensuring you meet your tax obligations with ease.
Certain individuals are legally required to submit a self-assessment tax return. You’ll need to complete and submit this form if you:

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Let Us take the stress out of filing your self-assessment tax return. Our team will ensure that your SA100 form is completed and submitted accurately, on time, and with all the necessary information. We make sure everything is in order, so you don’t have to worry about anything.
Contact Us now for expert support with your self-assessment tax return. We’ll help you navigate the process efficiently, so you can focus on your personal and professional goals without the worry of tax compliance.