VAT returns

Self assesment

We assist individuals in calculating and submitting their personal income tax returns accurately and on time.

year end

Self Assessment Tax Return Wimbledon – Professional HMRC Filing Services

If you are looking for reliable and accurate Self Assessment tax return services in London, ATS Associate is here to help. Based in Wimbledon (SW19 7LH), we support individuals, landlords, sole traders, contractors and limited company directors with complete HMRC Self Assessment filing. Our goal is to take the stress out of tax returns, ensure full compliance and help you claim every deduction you are entitled to.

Why Self Assessment Matters

Every year, millions of people in the UK must complete a Self Assessment tax return to report income from employment, rental property, business, dividends, savings or overseas sources. Missing deadlines or making errors can lead to HMRC penalties, interest charges and unnecessary tax bills. That’s why working with an experienced accountant for your Self Assessment tax return in London can save you time, stress and money.

Comprehensive Wimbledon based Self Assessment Services

At ATS Associate, we handle the entire process from start to finish, ensuring your tax return is filed accurately and on time. Our service includes:

Gathering All Required Information: We review your income sources, expenses, allowances, and tax-relief opportunities to ensure your return is complete.

HMRC Compliance: We ensure your Self Assessment tax return follows HMRC rules — especially important for landlords, sole traders, directors and high-income earners.

Claiming All Tax Relief: We review all possible deductions, including:

  • Business expenses
  • Working-from-home allowances
  • Rental property deductions
  • Capital allowances
  • Mileage and travel costs
  • Pension contributions
  • Maximising your relief can significantly reduce what you owe.

Submission to HMRC: Once reviewed and approved by you, we submit your return directly to HMRC and send you confirmation.

Ongoing Support: We answer your questions, explain your tax position and help you plan ahead for next year.

Our Self Assessment Process

Book a free consultation

Share your documents securely

We prepare your Self Assessment tax return

You review the draft

We submit to HMRC

You receive confirmation & tax summary

It’s simple, transparent and stress-free.

We bring you the best possible solutions for your company.

Profitability recommendations

Self-employment accounts

ATS prepares accurate financial accounts for sole traders, ensuring proper income and expense classification, compliance with HMRC rules, and readiness for self-assessment tax returns.

Peace of mind 2

Rental property income

We manage tax reporting for rental income, calculate allowable expenses, and ensure full compliance with HMRC regulations to optimise your property-related tax position.

Free incorporation included 1

Dividend taxation

ATS calculates dividend income, applies appropriate tax rates, and ensures accurate reporting on your personal tax return, maximising use of allowances and minimising liability.

Dedicated accountant

Income tax calculations

We compute personal income tax liabilities across all income sources, apply relevant deductions and allowances, and ensure precise reporting for self-assessment or PAYE compliance.

Free accounting software

Employment income

ATS reviews employment income, verifies PAYE deductions, and incorporates all earnings into your annual tax return, ensuring complete and compliant reporting to HMRC.

Get a personal consultation.

Other accountancy services.

Tax Services

We provide expert tax services, ensuring you’re fully compliant with HMRC regulations, while also helping you minimize your tax liability through smart planning and proactive advice.

Bookkeeping

We take care of your day-to-day transactions, maintaining accurate records of all income, expenses, and financial activities to keep your business running smoothly and tax-ready at all times.