Accountant for Self-Assessment Tax Return
Do you feel stressed when the tax season is near? As a reliable self assessment accountant, we take care of your Self-Assessment Tax Returns from start to finish, making sure everything is accurate and submitted on time. With a trusted accountant for self assessment, you stay compliant, avoid penalties, and get peace of mind.
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UK businesses trust us with their finances
Dedicated Finance Team
Real accountants. Real tax expertise
ROI-Focused Accounting
Our clients save more than they pay us
Payroll, VAT & Corp. Tax
Complete compliance under one roof
Why Your Self-Assessment Tax Return Matters
HMRC Reviews All Your Income Sources
Your Self-Assessment examines wages, director’s salary, interest, self-employment profits, rental income, and investments. Declare everything to avoid penalties and disputes.
Claim Every Eligible Deduction
Self-employed individuals deduct business expenses, repairs, and maintenance. Missing deductions costs £2,000–£5,000 annually
Pension Contributions Receive Tax Relief
Contributions receive tax relief at your marginal rate—20% basic rate and 40% higher rate. This makes pensions one of the most tax-efficient savings vehicles available.
Missing Deadlines Triggers Automatic Penalties
Missing the January 31st deadline costs £100 automatically, escalating to 5% of tax owed after 3 months, then 10% after 6 months.
Overpaying Costs Thousands Over Your Career
Missing deductions, unclaimed reliefs, and incorrect structuring waste £2,000–£5,000 annually for the average self-employed person.
Request a quote or ask for advice
We work with a wide range of businesses on a national level and can give you the friendly and expert accounting advice you need.
Common Self-Assessment Tax Challenges We Solve
Struggling with tax deadlines
We manage every deadline, filing, and HMRC communication so compliance becomes automatic and stress-free.
Confused by your tax return?
We simplify the Self Assessment process, handling all calculations, forms, and HMRC submissions
Don't know your trading allowance eligibility?
If you earn under £1,000, you may not need to file at all. We determine your filing obligations and claim trading allowance.
Confused about basis period rules?
New businesses often misunderstand which accounts to report. We ensure your basis period is correct, avoiding HMRC adjustments and additional tax bills.
Struggling with overlap relief on retirement?
When closing a business, overlap profits can be substantial. We calculate and claim your overlap relief correctly to minimize your final tax bill.
FAQs
What expenses can I claim on my Self Assessment?
You can claim business-related costs like office supplies, travel, equipment, and professional fees. Only allowable expenses that are wholly and exclusively for business purposes can reduce your taxable profit.
Can I do my Self Assessment myself or do I need a Self assessment accountant?
You can file your Self-Assessment yourself, but a self assessment accountant ensures accuracy, compliance, and can save you time and stress.
What if I don't file a Self-Assessment?
Failing to file on time can result in fines, interest on unpaid tax, and HMRC investigations.
Who actually needs to file a Self Assessment tax return in the UK?
Anyone who is self-employed, a company director, landlord, or has untaxed income like dividends or capital gains must file.
What happens if I miss the Self Assessment deadline?
HMRC will charge late filing and payment penalties, which increase the longer you delay.
How can a Self Assessment accountant help me reduce my tax bill?
They identify all allowable expenses, tax reliefs, and deductions to legally minimise your tax liability.
when is self assessment due?
Self Assessment tax returns in the UK are due by 31 January following the end of the tax year (5 April). If you file online, the deadline is typically 31 January, but if you file on paper, the deadline is 31 October of the previous year.
Comprehensive Accounting & Financial Solutions
Expert accounting services tailored to meet your business needs
Audit & Assurance Services
Independent audits for compliance, risk management, and financial transparency.
Bookkeeping & Payroll Services
Accurate financial record-keeping and seamless payroll processing.
Tax & VAT Advisory Services
Proactive tax strategies to optimize savings and ensure compliance.
Financial Planning & Business Advisory
Strategic guidance to drive long-term profitability and growth.
Why Choose Reflex Accounting
Our expert accountants help businesses reduce tax liabilities, increase profitability, and streamline financial management.
Proactive Problem-Solving
We go beyond just number-crunching. Our team takes the time to understand your financial challenges, offering strategic solutions to help you achieve your business and personal goals.
Approachable & Client-Focused
We understand that finance and audits can be overwhelming. That’s why our friendly team is always available to offer expert guidance, ensuring you feel confident and informed.
Time & Tax Efficiency
By managing your audits and tax obligations, we free up your time so you can focus on scaling your business. Our expert tax strategies have saved our clients significant amounts in tax liabilities.
Future-Ready & Tech-Driven
We embrace cloud-based, paperless accountancy solutions, bringing efficiency and modern innovations to financial management.
Struggling with Finances?
Let Reflex Accounting Handle It!
Focus on growing your business—not managing HMRC paperwork, audits & payroll
