Self-Assessment Tax Return Services UK
Expert Self-Assessment Tax ReturnTrusted Accountants for Individuals, Landlords, Directors, and the Self-Employed
Self-Assessment
Filing a self-assessment tax return doesn’t have to be overwhelming. At The Infinity Group, we provide transparent and reliable tax support for individuals and businesses, ensuring you remain in control of your finances. Whether you have multiple income streams or higher earnings, our expert accountants manage the entire process—from calculating your liability to communicating directly with HMRC. We guarantee your return is accurate, fully compliant, and submitted on time, so you can avoid unnecessary penalties and enjoy peace of mind knowing that your taxes are handled with professionalism.
https://theinfinitygroups.com/how-to-fill-in-a-self-assessment-tax-return-2025-guide/
What You Need to Prepare for Your Self-Assessment
Preparing the right documents is essential for a smooth and accurate self-assessment tax return. At The Infinity Group, we guide you through each step to make sure nothing is missed. You will typically need:
- Details of all income sources, including payslips, income from self-employment, dividends, rental income, other taxable earnings, and employment forms (P60, P45, P11D, if relevant).
- Records of business expenses that you wish to claim, such as office costs, travel, utility bills, and equipment. HMRC’s official guide on self-employed expenses can help with more details.
- Information regarding capital gains, such as those from selling property, shares, or cryptocurrency.
- Proof of any charitable donations and pension contributions.
- Details about foreign income or overseas assets.
- Your National Insurance number and Unique Taxpayer Reference (UTR).
- Bank statements for each month of the relevant tax year.
We’ll help ensure all your documents are in order, so your tax return fully meets HMRC requirements.
How The Infinity Group Helps You
Filing a self-assessment tax return isn’t just about completing forms. Our goal is to help you stay compliant, lower your accountancy costs and tax liability, and remove HMRC-related stress. We offer:
• Expert Support for the Self-Employed: We’ll guide you on claiming all permissible expenses, from office costs to mileage, helping you save on taxes.
• Capital Gains Tax Advice: We handle calculations for property, shares, and other assets to ensure you get the most out of allowances.
• Foreign Income & Double Taxation Relief: We make sure overseas income isn’t taxed twice.
• Solutions for Directors and High Earners: We handle both self-assessment and business accounts for seamless management.
• Additional Services include: • Assistance with claiming and tracking expenses year-round
• Guidance on correcting previously filed returns
You can rely on our professional, in-depth tax expertise to handle your returns with complete confidence.
Why choose The Infinity Group for Your Self-Assessment
Choosing the right accountant for your self-assessment can help you avoid errors and unnecessary expenses.
• Professional expertise – Our tax accountants have extensive experience in taxation.
• Peace of mind – Your return is submitted accurately and on time.
• Cost-effectiveness – We ensure you never pay more tax than necessary.
• Personal service – Clear, tailored advice with no hidden charges.
We handle all the work, so you don’t have to worry about deadlines, forms, or correspondence with HMRC.
Estimate Your Tax Bill
Not sure how much tax you’ll owe? HMRC provides a free online calculator that gives you an instant estimate based on your income and expenses.
Try the HMRC Tax Calculator.
Although this is a useful starting point, it might not cover complex situations, such as multiple income streams or overseas property. Our accountants can provide a personalised estimate of your tax liability and ensure all eligible expenses and reliefs are claimed.
Frequently Asked Questions
Who needs to file a self-assessment tax return? Anyone who is self-employed, a landlord, an investor, a high earner, or receives untaxed income is usually required to file.
What documents do I need to provide? You’ll need details of your income, expenses, pension contributions, and any gains from selling assets, plus your UTR and National Insurance number.
Can you help if I’ve missed the filing deadline? Yes. We’ll get your return submitted as quickly as possible and advise you on reducing potential penalties.
How much does it cost to have my return completed? We provide clear, fixed-fee pricing tailored to your situation, so you’ll know the cost upfront with no hidden extras.
Will you deal with HMRC if there are issues? Absolutely. As your authorised tax agent, we liaise directly with HMRC on your behalf, ensuring any queries are resolved quickly and professionally.
Get in Touch
If you require assistance with your self-assessment tax return, The Infinity Group can assist you today. Whether it is your first filing and you need reliable service, or you want the process to be simple and stress-free, we will make it happen — handled by professionals you can depend on.
Contact us today for a free consultation and get clarity on your tax bill.
Get In Touch
If you have any questions about contracting with Infinity, contact our team, who will talk you through the setup process, answer any questions you may have or arrange an appointment to discuss our services further.