Business Details
44 Years
experience
Trusted Chartered Accountants in Belfast
Established in 1982, John MacMahon has built a reputation as a trusted provider of accountancy and taxation services across Ireland and the UK. Our firm specialises in cross-border tax issues, supporting businesses of all sizes in sectors such as construction, transport, agriculture, and retail. With offices in Belfast, Newry, and Dundalk, we employ over 30 qualified staff who deliver tailored consultancy services, combining deep industry expertise with a personal approach to client relationships. Our commitment to quality is underscored by our Chartered Accountants status and registration as auditors with the Institute of Chartered Accountants in Ireland. We provide comprehensive accounting solutions, including audit, tax planning, corporate finance, and grant advisory services.Our team works closely with clients to navigate complex compliance regimes and drive business growth through strategic financial management. Over four decades of experience have positioned us as a leader in serving family-owned businesses and start-ups. We maintain transparency and accessibility by working with all major accounting software platforms and delivering regular updates on regulatory changes. Our cross-border practice addresses UK and ROI tax regimes, offering capabilities typically found only in large city-centre firms. By focusing on individual client needs, we ensure our services enhance operational efficiency and long-term success.
Services
Accounting & Audit
Tax Planning
Business Advisory
Forensic Accounting
Grant Services
Details
- Year established: 1982
Highlights and features
- We offer over 40 years of cross-border accountancy expertise.
- Our team works with all major accounting software platforms.
- We specialize in tailored solutions for family-owned businesses.
- We provide access to large-firm capabilities in tax planning.
- Our cross-border practice spans UK and ROI compliance regimes.
Associations and certifications
- Institute of Chartered Accountants in Ireland
- Audit Register
Services
Accounting & Audit
We provide comprehensive accounting and audit services for businesses of all sizes. Our qualified team guides clients through statutory accounts preparation, corporate governance compliance, and audit processes tailored to industry-specific requirements. With expertise in sectors like construction, agriculture, and retail, we enhance financial transparency and operational efficiency.
Tax Planning
Our cross-border tax planning solutions address UK and ROI regimes. We deliver consultancy on corporation tax, VAT returns, and compliance strategies, specialising in complex international transactions. Clients benefit from large-firm expertise in tax-efficient savings, inheritance planning, and dispute resolution without city-centre overheads.
We offer tailored advisory services including financial restructuring, mergers and acquisitions support, and family business succession planning. Our consultants help clients secure funding, develop strategic growth plans, and navigate cross-border challenges through hands-on guidance and sector-specific insights.
Forensic Accounting
Our forensic team conducts fraud investigations, business valuations, and dispute resolution services. With experience in court evidence provision and corporate intelligence, we deliver expert analysis for commercial disputes, matrimonial cases, and regulatory compliance matters across Ireland and the UK.
Grant Services
We specialise in identifying and securing grant funding for business development projects. Our team manages applications for capital expenditure, R&D incentives, and job creation schemes across both UK and ROI jurisdictions, maximising success rates through expert documentation and regulatory knowledge.
People
John MacMahon
Managing Partner
BComm FCA, John founded the firm in 1982 and leads its cross-border strategy. He has extensive experience in audit and tax compliance for SMEs, particularly in construction and agriculture sectors.
John McGinn
Partner
FCA, John specialises in corporate tax strategy and cross-border compliance, advising businesses on optimising fiscal structures while maintaining regulatory compliance across UK and ROI jurisdictions.
James MacMahon
Partner
BA ACA CTC, James focuses on business advisory services, particularly succession planning for family-owned enterprises. He assists with mergers, acquisitions, and financial restructuring projects.
Lisa Fegan
Associate Director
BA FCA, Lisa oversees audit engagements for clients in retail and leisure sectors. She ensures compliance with statutory requirements while enhancing financial reporting processes.
Gervase Kelly
Associate Tax Director
CTA ATT, Gervase leads cross-border tax investigations and voluntary disclosure cases, providing strategic solutions for complex compliance challenges faced by multinational clients.
Questions
What accounting services do you offer?
We provide full accounting services including statutory accounts, bookkeeping, audit support, and corporate governance compliance for businesses of all sizes.
Do you handle cross-border tax issues?
Yes, our firm specialises in cross-border tax planning and compliance for UK and ROI regimes, offering services typically found in major city firms.
How can you assist with business growth?
We offer strategic advisory services including funding access, business planning, succession strategies, and forensic accounting support for growth-focused businesses.
Do you help with grant applications?
We provide end-to-end grant application support, identifying eligible funding schemes and managing documentation processes to maximise approval chances for your business.
What sectors do you specialise in?
We have particular expertise in construction, agriculture, transport, retail, and food service sectors across the Island of Ireland.
Are you registered auditors?
Yes, we are registered auditors with the Institute of Chartered Accountants in Ireland (audit register reference 222919) with specialist experience in multiple industries.
