Self assessment tax return

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Self assessment tax return services for London SMEs

Self assessment tax return

Filing a Self Assessment tax return can feel overwhelming, especially if you are a sole trader, freelancer, company director, or property landlord juggling rental income alongside your day to day work. Our AAT-registered team prepares and files returns for clients across London and Essex all year round, so you can be confident your figures are accurate, your allowances are maximised, and your return reaches HMRC well before the deadline.

We work closely with subcontractors in construction who need to reconcile CIS deductions, landlords managing rental income through personal ownership or an SPV, and healthcare professionals balancing NHS and private income. Whatever your situation, we translate the HMRC rules into plain English and handle the paperwork so you do not have to.

Who Needs to File a Self Assessment Tax Return?

You usually need to file a Self Assessment tax return if you are self-employed, a company director, or receive income that is not taxed automatically through PAYE, including rental income, dividends, savings interest, or capital gains.

Self-employed sole traders and freelancers earning above the trading allowance.
Company directors, including those running small limited companies.
Landlords with rental income over the £1,000 property allowance, or between £2,500 and £9,999 after allowable expenses.
Anyone with savings, investment, or dividend income over £10,000 a year.
Construction subcontractors under the CIS scheme who want to reclaim tax deducted at source.
Anyone with untaxed foreign income, or who has sold a property or shares subject to Capital Gains Tax.

Client Communication

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Expertise You Can Trust

including tax preparation, financial analysis, auditing.

Client Satisfaction

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Budget Friendly

such as cost savings, expertise, and improved accuracy.

Why GM Professional Accountants?

  • Trusted Experts: With years of experience supporting sole traders, freelancers, and property landlords, and over 150 five-star reviews, we’re known for exceptional service, especially in handling Self Assessment and tax return needs.
  • Transparent Fees: Our packages are affordable and clearly outlined, with no hidden costs—even for those with complex rental income or income tax obligations.
  • Responsive Communication: Whether you’re dealing with HMRC queries or preparing your next tax return, we’re always available to answer your questions promptly and clearly.
  • Personalised Service: We tailor our approach to meet your specific needs—whether you’re submitting a Self Assessment, managing rental income, or navigating income tax as a freelancer or sole trader.

3 Simple steps to process

Offer guidance on creating budgets and forecasts to help businesses plan and manage their finances effectively, including methods like zero based budgeting and rolling forecasts. These tools are especially valuable for freelancers, sole traders and property landlords who need to project rental income, business expenses and income tax liabilities throughout the year. Accurate forecasting also ensures timely tax return submissions and helps maintain compliance with HMRC regulations.

Provide insights into the unique accounting principles and regulations governing nonprofit organizations, including fund accounting and compliance with IRS requirements. Also explore ethical dilemmas faced by accountants and financial professionals, especially those managing Self Assessment and tax obligations for diverse clients such as freelancers, sole traders and property landlords.

Step 1
Consultation & Documentation

Step 2
Tax Calculation & Optimisation

Step 3
Submission & Ongoing Support

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Accountants in London for Construction, Restaurants & Property