Trusted Self Assessment Accountant for UK Residents & Non-Residents
Ensure compliance, eliminate the hassle, and optimize your tax position.
Before
John, a freelance web developer, struggles with classifying income and deductions, leaving his self-assessment filing to the last minute, risking errors, missed deadlines, and potential penalties.
Result
Sterling & Wells simplifies his filing, ensures accurate deductions, and meets deadlines, eliminating stress and minimizing tax liability.
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Complex Tax Rules. Expert Solutions.
UK Self-Assessment filing can be overwhelming as missed deductions, misclassified income, and HMRC deadlines create unnecessary risk and penalties. Our expert Self Assessment accountant handles the complexity, so you don’t have to.
The End-to-End Self-Assessment Service
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Complete Income Review
All income streams analyzed and correctly classified
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Expense Optimization
Maximize eligible deductions to minimize tax liability
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Timely HMRC Filing
Submitted well ahead of deadline—no penalties, no stress
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Forward Tax Planning
Strategic guidance for next year's tax position by our self assessment accountants
Self-Assessment Important Deadlines
Tax deadlines come fast, and missing one can mean penalties. Sterling & Wells helps you stay ahead and avoid stress. Here are the key Self-Assessment dates for 2024–25.
| Description | Deadline |
|---|---|
| Register for Self-Assessment | 05 October 2025 |
| Paper Tax Return Deadline | 31 October 2025 |
| Online Tax Return Deadline | 31 January 2026 |
| Tax Payment Due | 31 January 2026 |
| Return Amendments Allowed Until | 31 January 2026 |
Do You Need Self Assessment Accountants?
If your income isn’t as simple as paycheck in, tax deducted, job done HMRC probably wants to hear from you. You’ll need a Self Assessment Accountant if you:
- Run your own business or operate as a sole trader
- Make over £1,000 from freelance or side income.
- Earn rental income from UK property
- Share profits as part of a partnership
- Receive dividends, savings income, or investment returns
- Have foreign income of any kind
- Get paid earnings not already taxed, like tips or commissions.
- And here’s the big change: from 2024/25, high earners on PAYE with no extra income are off the hook — no tax return needed.
Is This You?
If any apply, you likely need Self Assessment:
Sole Traders & Business Partners
Dividend, Investment or Capital Gains Income
Landlords & Property Income Earners
High Earners Claiming Child Benefit
Company Directors
Professional Expertise. Personal Service.
As professional Self Assessment Accountant, we provide the elevated level of service individuals with complex financial situations require.
- Chartered Advisors: Tax professionals with corporate-level rigor applied to your personal finances
- Global Expertise: UK residents with overseas income, and overseas clients with UK tax needs
- Optimization Focus: Not just compliance, we work to reduce your tax burden strategically
Meet the Experts Devoted to Your Success
Meet the Tax Advisors & Accountants at Sterling & Wells who make your growth and success their number one priority.
Related Services
We help you stay compliant, organised, and financially confident with expert-led accountants and tax advisors.
Self Assessment Highlights
Stay informed about Self Assessment updates. Keep up with the latest updates to ensure compliance and optimise your tax strategy.
Frequently Asked Questions
Below, we’ve answered some common questions about Self-Assessment to help you understand the process and your responsibilities.
Who needs to file a Self Assessment tax return with HMRC?
Anyone who is self-employed, a company director, has income from property, or receives untaxed income such as dividends or foreign income will generally need to file a Self Assessment return.
What information do I need to provide for my Self Assessment filing?
When is the deadline for submitting my Self Assessment tax return?
How can Sterling & Wells assist with my Self Assessment filing?
What if I've missed the Self Assessment filing deadline?
Ready to Reclaim Your Time?
Stop wrestling with HMRC forms. Let our experts handle your Self-Assessment while you focus on what matters.