Self-Assessment Tax Returns UK

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Trusted by 500+ UK businesses • 98% customer satisfaction

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Trusted by Leading UK Businesses

White Horse Dover
TRK Commercial
Trk Finance
amsltdgroup
The County Members
White Horse Dover
TRK Commercial
Trk Finance
amsltdgroup
The County Members
22

Stress-Free Self Assessment Tax Return Preparation

We take the complexity out of self-assessment with our complete tax return service. Our specialists gather your financial information, identify all allowable deductions, and submit accurate returns well before deadlines. Whether you’re self-employed, a landlord, or have multiple income sources, we ensure maximum tax efficiency while eliminating filing stress.

With ongoing support throughout the year, we help you maintain proper records and plan for upcoming tax payments, preventing last-minute surprises.

6K+

Happy Clients

15+

Years of Experience

What We Offer

Our comprehensive services designed to meet the specific needs of UK businesses and individuals.

Tax
Services

Expert tax solutions tailored to your financial situation

  • Tax Planning
  • Tax Preparation & Filing
  • HMRC Investigation Support
  • Tax Efficiency Strategies
  • Annual Tax Compliance

Accounting Services

Comprehensive financial management for businesses

  • Bookkeeping
  • Annual Accounts Preparation
  • Management Accounting
  • Cloud Accounting Solutions
  • Financial Health Checkups

VAT
Services

Specialized VAT guidance and compliance support

  • VAT Registration
  • VAT Return Preparation
  • VAT Scheme Optimization
  • HMRC VAT Inspection
  • International VAT Compliance

Payroll
Services

Accurate and compliant payroll solutions

  • Payroll Processing
  • Pension Management
  • PAYE & NI Calculations
  • Payslip Generation
  • HMRC Payroll Submissions

Business Services

Strategic support to help your business grow

  • Company Formations
  • Business Planning
  • Cash Flow Management
  • Corporate Compliance
  • Director Advisory Services

How Does Our Tax Return & Self-Assessment Service Work?

Our straightforward 4-step process ensures a smooth and efficient tax return experience.

Registration & Data Collection
Tax Return Preparation
Submission & Payment
Ongoing Support
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📝
Registration & Data Collection

✅ HMRC Registration – We register you for Self Assessment 

✅ Income Gathering – Collect all required documents (P60s, P11Ds, CIS statements, rental income)

✅ Allowance Check – Verify eligibility for Marriage Allowance, Trading Allowance, WFH relief

✅ Record Review – Digital or paper records – we work with your preferred format

Previous Step
Next Step
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🏢
Tax Return Preparation

📊 Income Reporting – Employment, self-employment, dividends, savings, rental and foreign income

📊 Expense Optimisation – Claim all allowable costs (uniforms, professional fees, business mileage)

📊 Capital Gains – Calculate and report disposals using Annual Exempt Amount (£3,000 from 2024)

📊 Special Circumstances – Handle student loans, High Income Child Benefit Charge, pension tax relief

Previous Step
Next Step
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🤝
Submission & Payment

🔍 Accuracy Review – Double-check calculations against HMRC tax bands and thresholds

🔍 SA100 + Supplementary Pages – Complete all relevant forms 

🔍 Digital Filing – Secure online submission via HMRC-approved software

🔍 Payment Planning – Calculate payments on account and advise on Time to Pay arrangements

Previous Step
Next Step
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Ongoing Support

📈 Deadline Management – Reminders for 31 Jan filing and 31 July payments

📈 HMRC Correspondence – Handle enquiries, notices and compliance checks on your behalf

📈 Future Planning – Advice on tax-efficient investments (ISAs, pensions, EIS)

📈 MTD Transition – Prepare for Making Tax Digital for Income Tax

Previous Step
Next Step

What Our Clients Say

Here’s what our happy clients say about our Tax services.

It's rare to find such a reliable and approachable professional. ASK Group is incredibly fast with both work and response time. Thank you!

The White Horse

ASK Group Ltd. is one of the most professional providers of accounting and related services in The UK. I highly recommend them for all your accounting and finance needs—a true one-stop solution!

The County Member

This firm offers excellent communication and highly professional service. ASK Group Ltd is a pleasure to work with- thorough, flexible, and always ready to answer questions. Polite, respectful, and highly recommended!

TRK Finance

For the past few years, ASK Group Ltd has expertly handled all our personal and business accounting needs. Their reliability, prompt advice, and professional service provide us with complete peace of mind. We highly recommend them—thank you!

TRK Commercial

ASK Group Limited has been my accounting firm for over a few years now, consistently delivering a professional yet friendly service. In my years of running a business, I have never encountered another company—of any kind—that is as responsive and efficient. The value for money is exceptional, and above all, I truly believe that ASK Group always has the best interests of both my business and myself at heart!

AMS Limited

    Ready to simplify your tax returns?

    Powerful Tax Strategy, Precision Results. Let’s Conquer HMRC Together.

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    Book a Tax Consultation

    Why Choose Us

    Trusted by businesses and individuals for smarter, stress-free tax solutions.

    Qualified Accountants

    Our team consists of ACCA and CIMA qualified accountants with decades of experience in UK tax law.

    Fast Turnaround

    We process most tax returns within 3-5 business days, far faster than industry standard times.

    Fixed Pricing

    No surprise fees or hidden costs. Our transparent pricing means you know exactly what you'll pay.

    Data Security

    Bank-level encryption, advanced safeguards, and a secure client portal to protect your sensitive financial information.

    Dedicated Support

    A personal accountant assigned to your business who knows your financial situation intimately.

    Digital First

    Easy-to-use online portal for document upload, communication, and tax return tracking.

    Years of Experience
    0 +
    Happy Clients
    0 K+
    Client Ratings
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    New Clients Per Year
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    Frequently Asked Questions

    Taxation FAQs: Clear Answers to Your Top Questions

    What is a Self-Assessment Tax Return?

    A Self-Assessment Tax Return is a form you submit to HMRC to declare your income, expenses, and other financial details for the tax year. It helps determine how much tax you owe if you’re self-employed, a landlord, or have other untaxed income.

    Who needs to file a Self-Assessment Tax Return?

    You must file a return if you’re self-employed, a company director, a landlord earning rental income, or have additional untaxed income over £1,000. HMRC may also require one if you have capital gains or foreign income.

    What Records Do I Need to Keep for My Tax Return?

    ou should keep records of all income (invoices, payslips, bank statements), expenses (receipts, bills), and other financial documents like P60s, P11Ds, or rental income details. If you’re self-employed, maintain records of business costs such as travel, equipment, and office expenses for at least five years. Contact us for information!

    How Do I Register for Self-Assessment?

    If it’s your first time filing, you must register with HMRC online (via the Government Gateway) or by post. Once registered, you’ll receive a Unique Taxpayer Reference (UTR) number and an activation code to access your online account. The process can take up to 10 working days. Contact us to simplify it.

    Do I Need an Accountant to File My Self-Assessment?

    While you can file yourself, an accountant ensures accuracy, maximizes tax reliefs, and saves time. They also handle complex cases like multiple income streams, capital gains, or overseas earnings. Many taxpayers use accountants to avoid errors and penalties.

    Explore More Options with Our Services

    Your full-spectrum accounting partner for business growth and financial clarity.

    ...
    Accounting Services

    We handle your day-to-day finances with accuracy, ensuring your books are always up-to-date and compliant. Focus on growing your business while we manage the numbers.

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    ...
    Tax Services

    Expert tax planning and filing to minimize liabilities and maximize returns. Stay compliant with HMRC while optimizing your tax strategy.

    Learn More
    ...
    VAT Services

    Stress-free VAT registration, returns, and compliance support. Avoid penalties and reclaim what you’re owed with our expert guidance.

    Learn More
    ...
    Payroll & PAYE

    Streamlined payroll processing and PAYE compliance for hassle-free employee payments. Let us handle payroll taxes, pensions, and filings.

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    ...
    Business Services

    From company registration to financial structuring, we help launch and scale your business. Smart planning for long-term success.

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    ...
    Accounting Software

    Set up and optimize cloud accounting tools like Xero or QuickBooks. Integrate tech to automate and simplify your finances.

    Learn More
    ...
    Compliance Services

    Compliance with VAT is complex. Investigations by the VATman can be intense – all the more important that your VAT returns are concluded appropriately.

    Learn More

    Get a Consultation


    Need some Further Help?

    If you have any further questions or would us to help with your tax needs, get in touch with us today.

    • Email Us
      advice@askgroup.com
    • Call Us
      02030 044 974
    • Visit Us
      2 Windsor End, Office Prime