We are an Oxford-based, independent accounting practice committed to providing exceptional accounting services and strategic business advice to clients across Oxfordshire and the wider UK. We offer a wide range of accountancy and tax planning services, combining the personal touch of a small practice with responsive, reliable expertise.
We are an ICAEW registered practice established in 2008, with many satisfied clients. We know every client is different, so we take the time to understand your situation and give you straightforward advice.
Meet the founder
Simon Maughan Antonis
Founder and Director, FCA
Simon Maughan Antonis
Founder and Director, FCA
Simon's love of numbers and helping people has shaped his 20-year career in finance. After qualifying as a chartered accountant in 2007, he worked with KPMG in Edinburgh, gaining experience with businesses of all shapes and sizes. Today, he is a Fellow of The Institute of Chartered Accountants in England & Wales (ICAEW) - the most senior status awarded by ICAEW, bringing deep expertise to his work.
Simon uses his skills to help businesses and individuals make sense of their finances, offering clear advice that cuts through complexity. He also serves as a board member, bringing strategic as well as accounting expertise to his clients.
In his free time, Simon is either running, cycling or cooking up a storm in the kitchen. At the heart of Simon's work is a simple goal: to make financial management less stressful and more understandable for everyone he works with.
Why work with us?
Work directly with your accountant
You'll work directly with Simon on your accounting and tax. No handoffs to a different person each time.
A small, independent firm
You'll get the personal attention of a local, independent practice that takes the time to get to know you and your business.
Business and personal tax expertise
We work across business and personal tax, helping you understand the financial and tax implications of your decisions — and spot risks and opportunities you might otherwise miss.
Here when you need us
Whether it's a tax question, an HMRC letter, a new contract or a business decision, just give us a call.
A flexible service that grows with your business
Our service can adapt as your business changes, whether you're starting out, expanding or taking on new challenges.
Access to trusted specialists
Where it helps, we can introduce you to trusted providers — financial and insurance advisers, branding experts and other specialists we've worked with over the years.
We are based in Oxford and we work with individuals and businesses across the city, including Jericho, Summertown, Headington, Cowley, and Botley, and throughout Oxfordshire. But our clients aren't just local — we work with people across the UK, from Gloucestershire to London, with the same personal service wherever you are. That includes private clients, sole traders and landlords, contractors and consultants, Oxford University spin-outs and growing businesses.
Happy to meet in person or work together remotely — whatever suits you best.
What our clients say
This was my first time ever working with an accountant in the UK, and I felt like having won the lottery here. Simon is very efficient, concrete, to the point, super helpful, responsive and quick about it. If you're looking for an accountant, Simon is your lead.
Simon Maughan & Co came highly recommended, so we decided to engage with them. We have never looked back. We have found them to be proactive and highly responsive, completing their work in a timely fashion. We have no hesitation in recommending them to any organisation seeking a professional accountancy firm.
Simon's friendly approach hides just how skilled and professional he and his team really are. After being let down by a previous accountant, we were under pressure to meet some important deadlines. Simon quickly understood what needed to be done. His advice and support made a huge difference—saving us both time and money. I honestly can't recommend him enough.
Great, efficient service. Simon is very professional with excellent attention to detail. He made my tax process feel very easy and painless.