3 Best Accountants in Lisburn, UK

“2026 Update: Cartmill Stewart LLP is a trusted full-service accounting firm committed to helping small businesses thrive. They are dedicated to driving prosperity by providing tech-enabled accounting, compliance, and advisory solutions. Their team listens, advises, and collaborates to provide a seamless experience, giving you confidence and peace of mind every step of the way. With many years of combined industry expertise, their proactive, approachable team is ready to support your journey. Their advisory services can help new and experienced business owners confidently make decisions. With the leading cloud-based accounting system in your business, you can make your life easier, boost efficiencies, gain 24/7 real-time access to your financial data, and save on overhead costs.”

“2026 Update: M Squared Accountancy Ltd has an experienced director with a demonstrated history of working in the accounting industry. Its team provides precise tax calculations and timely filings, offering practical advice to help you leverage legitimate tax opportunities and maximize your financial efficiency. The team has strong professional skills in self-assessment, financial statements, cash flow, fixed assets, UK corporation tax, mentoring, and PAYE tax. It provides proactive, plain-English accountancy support for business owners across Lisburn, Belfast, and Northern Ireland. Its range of expert accountancy services is designed to help your business thrive. It offers a 1-hour free consultation to new clients.”

“2026 Update: Exchange Accountants is one of Northern Ireland’s leading digital accountancy agencies. They have worked hard to establish themselves in this realm early in the digital accounting revolution. They became a partner with the global cloud platform Xero and went on to become the first accountancy practice in Northern Ireland to be recognised as a Xero Gold Partner. Exchange Accountants is here to provide accounting services and expert advice at every step of your business journey. Exchange Accountants offers a fully comprehensive range of services, ranging from compliance to advisory and digital services. Their expert team is here to help you address current challenges and plan for the future. Whether you are a small business owner, a family business, or a large corporation, they can help you manage your finances effectively and give you the insight to help you make informed decisions about your financial goals.”