How to Prepare for an HMRC Tax Investigation
October 9, 2026 No Comments
Receiving a letter from HM Revenue & Customs (HMRC) about an enquiry
Synergy Tax Ltd is a trusted Chartered Accountant in Mayfair, providing expert tax, accounting, payroll, and business advisory services. We help individuals and businesses stay compliant, save time, and grow with confidence.
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Synergy Tax Ltd provides reliable business tax and accounting services for businesses, directors, contractors, and individuals across Mayfair and London. We make your finances easier to manage, keep you organised, and help you make informed decisions with confidence. Whether you need help with day-to-day bookkeeping and accountancy, annual accounts, tax returns, payroll, cloud accounting, or future business planning, our experienced team is ready to support you. Get in touch with us today to discuss your requirements and schedule a consultation.
Every business has different financial needs. A new business may need help setting up, choosing the right structure, registering for tax, or managing its first accounts. A growing business may need more accurate bookkeeping, payroll support, cash-flow advice, or VAT guidance. Established companies may need better systems, reporting, and long-term tax planning. At Synergy Tax, we provide accounting support tailored to your business. We keep your financial records clear, accurate, and up to date, giving you the insight you need to make confident business decisions. You do not need to handle every financial task alone. Let our experienced accountants manage your accounts and paperwork, so you can focus on running and growing your business.
Tax rules, deadlines, and reporting requirements can be difficult to manage. Missing a deadline or submitting incorrect information can lead to unnecessary stress and potential penalties. Our team provides clear and practical tax advice to help you understand your responsibilities, meet important deadlines, and manage your tax affairs with confidence.
We support individuals and businesses with:
We explain your options in simple language and provide support throughout the year not just when a tax deadline is approaching.
Running a small business involves many responsibilities, and accounting should not take up more of your time than necessary. Our small-business accounting services help keep your finances organised, compliant, and easier to understand. We can help with bookkeeping, annual accounts, VAT returns, tax returns, financial administration, and ongoing accountancy support. As your business grows, we can adapt our services to match your changing needs. With Synergy Tax, you get practical support that helps you stay in control of your finances and focus on moving your business forward.
Good bookkeeping gives you a clear picture of your business performance. It helps you track income, expenses, cash flow, and financial commitments, so you can make decisions based on accurate information rather than guesswork. Our bookkeeping services keep your records organised, accurate, and up to date. We can support you with regular bookkeeping, bank reconciliations, expense tracking, invoice records, and financial reporting. With clear financial records, you can manage your business with greater confidence and be better prepared for tax deadlines, funding applications, and future growth.
Cloud accounting gives you convenient access to your financial information whenever you need it. You can view invoices, transactions, reports, and business performance online, from wherever you are.We help businesses use cloud accounting software, including Xero and QuickBooks. Whether you are moving away from paper records, switching accounting systems, or looking for ongoing cloud-accounting support, we can make the process simple. Our goal is to give you clearer financial information, more efficient processes, and greater control over your accounts.
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Receiving a letter from HM Revenue & Customs (HMRC) about an enquiry
A failure to file your 2025/26 online tax return by the 31
To successfully appeal an HMRC penalty on the grounds of a reasonable
We provide a full range of accounting services, including bookkeeping, statutory accounts preparation, tax planning, payroll, VAT returns, company formation, business advisory, and compliance support, tailored to individuals and businesses across Mayfair and the UK.
Yes. We specialise in supporting small businesses, freelancers, and start-ups with affordable and practical accounting solutions, helping them grow while staying fully compliant with UK tax laws.
A Chartered Certified Accountant is a qualified professional regulated by the ACCA (Association of Chartered Certified Accountants). This ensures they meet strict professional and ethical standards, have undergone rigorous training, and undertake ongoing professional development.
Absolutely. We handle personal tax returns, self-assessment, inheritance tax planning, and capital gains tax, as well as corporate tax compliance and strategic business tax planning.
Yes, we offer a complimentary initial consultation to discuss your needs, assess your current financial position, and outline how we can help you achieve your goals.
Yes. While we are based in London, we serve clients across the UK through secure cloud accounting platforms and virtual meetings.
We work with leading platforms such as Xero, QuickBooks, and Sage, providing clients with real-time financial insights and seamless collaboration.