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Expert accountants & tax services in Oxford for small businesses and individuals

Chartered Accountants based in central Oxford, providing expert and personable accounting and tax advice to individuals and small to medium-sized businesses.

What our clients say

Simon has been a huge help to our business since its formation in 2017. He is knowable, friendly, and always quick to respond. He comes with the highest recommendations.

Dr Scott Thacker Managing Director at Oxford Infrastructure Analytics Ltd

Simon has been an invaluable help at Inner Citadel, always making our accounting processes smooth and stress-free. He takes the time to explain everything clearly, ensuring we fully understand our finances.

Alberto Scarpellini Co-founder and owner at Inner Citadel, Oxford

Services we offer

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Setting up a new company

Starting your own business is exciting. There is a lot to think about. Besides the more fun things like picking the right name, you'll also need to consider the right legal structure (sole trader, limited company, etc.) and understand your accounting and tax obligations. We're here to help with any questions, as well as planning for growth.

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Corporation tax, VAT & employer tax services

Navigating business taxes can be tricky, but we’re here to simplify the process. We handle corporation tax returns, ensuring accuracy, and our VAT and employer tax services keep you compliant. We also help you unlock capital allowances, identifying ways to reduce your tax burden.

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Woman sitting in a garden on a laptop doing calculations in Oxfordshire

Personal tax planning and advice

Life transitions require smart tax planning. Whether you're receiving an inheritance, investing, trading, changing careers, or approaching retirement, we’re here to help. Our services cover self-assessment tax returns, ensuring HMRC compliance while minimising your tax liability. We also assist with managing capital gains and inheritance tax, helping you feel confident about your future.

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Cloud accounting

Keeping track of finances can be challenging. Cloud accounting gives you 24/7 access to your company's financial data from any device with complete security. It reduces administrative workload by automatically categorising transactions and generating real-time reports.

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Business and CFO advisory services

Whether you're a start-up, a scale-up, or an established business, we can provide strategic guidance to help your company overcome challenges and improve performance. We analyse your finances, spot growth opportunities, and create practical strategies for your goals, offering expert financial guidance without requiring a full-time CFO.

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Year-end accounts

We’ll prepare your year-end accounts accurately and on time, keeping you compliant with HMRC and Companies House. No jargon, no stress—just expert support so you can focus entirely on growing your business.

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We are here to help.

Schedule a no obligation, 20 min. introductory call.
Contact us
Image of Simon Maughan & Co accounting office in central Oxford where we serve small businesses and individuals

Accounting service in Oxford you can rely on

Our accounting practice is based in central Oxford (OX2) and serves clients across Oxford and the wider Oxfordshire area—ideal for those who value face-to-face meetings. Whether you need assistance with self-assessment, company accounts, VAT, or payroll, our Oxford team provides personalised service with the convenience of local expertise.

We also work with many clients remotely and are fully equipped for digital collaboration via video calls and secure cloud-based software.

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