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Your trusted Oxfordshire accounting partners

As an Oxford-based firm of chartered accountants, we offer accounting, tax and financial advisory services designed to transform complexity into clarity. Our priority is to equip clients with the insight they need to make informed financial decisions, supported by clear explanations and professional expertise. Whether a client is developing a new enterprise or managing personal tax matters, we deliver guidance aligned with their specific aims. We believe that personalised service is essential to effective financial management, and we shape our support around each clients needs.

We provide assistance with company formation, including structure selection and early tax considerations. Our corporation tax, VAT and employer tax services ensure accurate reporting and compliance, while our personal tax planning addresses self-assessment, capital gains and inheritance matters during life changes such as investment or retirement. Cloud accounting enables clients to access secure, up-to-date financial information, and our advisory services offer strategic direction without requiring a full-time CFO. We prepare year-end accounts efficiently, maintaining compliance with HMRC and Companies House. Working with small businesses, contractors and consultants across Oxfordshire and the wider UK, we offer both in-person and remote support. With extensive experience, including senior roles within major firms, we continue to provide dependable expertise.

Served areas
  • Oxford, Summertown, Jericho, Oxfordshire, Marston, Woodstock, Wolvercote, Banbury, Kidlington, Witney, Abingdon, Wallingford, Thame, Faringdon
Business details
  • Year established: 2008
  • Employees: 3
  • Licensed
  • Insured
Highlights and features
  • Year end accounts
  • Corporation tax
  • Company formation
  • Self assessment tax returns
  • Part time Finance Director
Associations and certifications
  • Institute of Chartered Accountants in England and Wales (ICAEW)
Payment methods
  • Cash, Debit cards, Credit cards, Mobile payments, Bank transfers
Services
Business accounting and tax We provide a full suite of business accounting and tax services, helping you streamline financial management and compliance. From payroll administration, VAT and corporation tax filings, to cloud accounting systems and management accounts, we offer expert guidance. Our advisory services, including CFO support, help businesses plan strategically, while company formation and secretarial services ensure regulatory obligations are met efficiently.
Personal Tax Our team offers individual-focused personal tax support, ensuring that all filings and planning are handled with precision. Services include self-assessment returns, management of self-employment income and VAT, capital gains and inheritance tax planning, as well as property and investment income guidance. We prioritise lawful optimisation, providing clarity on obligations while helping clients minimise unnecessary tax payments.
People
Simon M. Antonis
Simon M. 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, where he plays a key role in designing financial structures for clients, ensuring both compliance and efficiency.
Reviews (2)
Write a Review
Austin A.
Sep 22, 2024
When our charity's revenue increased to a level that required its annual return to be independently audited, we embarked on a search to identify a suitable firm. Simon Maughan & Co came highly recommended, so we decided to engage with them. We have never looked back.
Dr. Scott T.
May 25, 2024
Simon has been a huge help to our business since its formation in 2017. He is knowledgeable, friendly, and always quick to respond. He comes with the highest recommendations.