Trio Accountancy Services

Trio Accountancy Services are accountants who have been based in Cheltenham since 1980. We offer a wealth of experience in accountancy management for local, UK and overseas based businesses – both small and large, from start-ups to more mature businesses.

The practice is under the directorship of Mervyn Sanderson who, with his team of accounts and tax professionals, provide services to lots of hard working sole traders, limited companies and larger international organisations.

Our primary work ethics can be summed up with the words accuracy, efficiency and friendliness – something which our clients think makes us very special.

Our Services

Accountancy Services

Either from your own records, or those maintained by Trio if required, we will prepare your Annual Accounts, which are the record of your business dealings, and are used to calculate your tax liability. We can prepare accounts for all types of organisations including:
  • Sole Traders
  • Partnerships
  • Limited Companies
  • LLP’s

Business Services

We provide wide-ranging bookkeeping services. We can effectively become your accounts department, handling all of your record keeping, or simply completing your quarterly VAT returns. One of our accountants will be happy to discuss your requirements with you. The services we offer:
  • Set up and Run Accounts System
  • Payroll / Salaries
  • VAT Returns
  • Monthly Management Accounts
  • Setting Budgets and Monitoring Performance

Tax Consultancy

We provide a full range of tax services from basic compliance to tax planning. The services we offer include:
  • Personal tax and self assessment returns
  • Sole trader and partnership tax compliance and advice
  • Company tax compliance and advice.
  • Inheritance tax planning
  • Estate administration
  • Trust tax compliance and advice


“Buccaneer have been working with Trio Accountancy services for over twenty years and have developed with them wage, profit & loss & cashflow systems to be able to run our business efficiently & effectively.

We have always found Mervyn & the team to be helpful, understanding & sympathetic to our businesses needs whist giving sound advice on accounting & tax matters.

We have regular accounting deadlines to meet & when put under pressure the Trio team have always gone the extra mile to ensure that we achieve our timeframes set in a professional & courteous manner.

I feel that Trio are an integral part of the Buccaneer business & are crucial to our success.”

“Tiger is no ordinary company, from the outset we were very clear we didn’t want to work with ordinary people. Tiger is a fast paced retail business,  I am please to say that Mervyn and the team at Trio didn’t disappoint in matching our aspirations. When we started the company we were looking for a business  support company who could grow with us. Small enough to understand our day to day challenges but large enough to have the skills and resources required for success at a price we could afford.

Read full testimonial…

“I have been a client of Trio Accountancy since 2011. I am delighted to say that I have found the team at Trio extremely helpful, they have always provided me with excellent advice and support regarding all of my tax matters. I have received  a consistent professional service from all of the team at trio and would highly recommend their services”.

“As a small business we had chosen to go with a big name accountancy firm originally but quickly became disappointed that we were paying over the odds and not getting the service we needed.  When we switched to Trio, Mark and his team quickly found new ways we could save money and reduce our tax payments which has continued until this day – would highly recommend them.”

“I have been a client at Trio for 16 years. Mervyn and Mark are consistently attentive, informative and professional. Straight forward professional advice delivered in a straight forward manner. It also helps that they and the team at Trio are exceptionally nice people too. I would not hesitate to recommend Trio”.