Business Details
47 Years
experience
Trusted Accounting & Tax Advisory Services in London
Established in 1979, Mouktaris & Co & Co has built a reputation for delivering expert accountancy, taxation, and advisory services to entrepreneurs, owner-managed businesses, and private clients. Our team of Chartered Accountants combines over four decades of experience with a client-centric approach, offering tailored solutions in financial reporting, tax planning, and business strategy. We specialise in sectors such as technology, e-commerce, property, and professional services, leveraging our deep understanding of UK and international tax frameworks to optimise client outcomes. As members of the Institute of Chartered Accountants in England and Wales (ICAEW), we uphold the highest standards of professionalism and integrity.Our commitment to innovation is reflected in our cloud accounting solutions, which provide real-time financial insights and streamline business processes. With a diverse team fluent in multiple languages, we serve a global client base, offering seamless support across borders. Our proactive approach ensures clients receive timely guidance on evolving regulatory landscapes, from HMRC tax investigations to R&D tax reliefs. Recognised for our expertise in succession planning and inheritance tax, we help clients preserve and transfer wealth effectively. Our mission remains unchanged since 1979: to deliver unparalleled service, combining technical excellence with a personal touch.
Services
Accounting
Audit and Assurance
Cloud Accounting
Tax Planning
Company Formation
Payroll Services
Forensic Accounting
VAT Compliance
R&D Tax Relief
Succession Planning
Details
- Year established: 1979
Highlights and features
- 45+ years of expertise in UK and international tax frameworks
- Specialist knowledge in R&D tax reliefs and HMRC dispute resolution
- Cloud accounting integration for real-time financial management
- Proactive succession planning and inheritance tax optimisation
- Multilingual team serving clients across Europe, Cyprus, and Greece
Associations and certifications
- ICAEW
What people say
Proactive and reliable support
Expert tax planning advice
Excellent R&D tax relief assistance
Seamless cloud accounting integration
Dedicated multilingual team
Services
Accounting
Our accounting services provide accurate financial statements and real-time cloud-based solutions to enhance business decision-making. We cater to startups, owner-managed businesses, and established corporations, offering tailored bookkeeping, year-end accounts, and management reporting. Our cloud integration enables continuous financial oversight and strategic planning.
Tax Planning
Specialising in UK and international tax strategies, we deliver optimised solutions for individuals and businesses. Our expertise includes inheritance tax mitigation, non-domicile regulations, and HMRC dispute resolution. We focus on legally minimising tax liabilities while ensuring compliance with evolving tax frameworks for both domestic and cross-border operations.
Audit and Assurance
As registered auditors with ICAEW, we conduct statutory and non-statutory audits to provide stakeholders with financial confidence. Our services include internal control assessments, compliance reporting, and assurance on corporate governance frameworks, helping businesses maintain transparency and meet regulatory requirements.
Cloud Accounting
We implement cloud accounting systems that transform financial management through real-time data access. Our solutions include software selection, system migration, and ongoing support to streamline bookkeeping, VAT reporting, and financial analysis, enabling businesses to focus on growth while maintaining financial clarity.
R&D Tax Relief
Our specialists help technology and science-driven companies claim R&D tax credits by identifying qualifying expenditures and preparing robust submissions. We provide advance assurance support and strategic guidance on maximising 15-32% tax relief rates, ensuring compliance while enhancing cash flow for innovation-focused businesses.
People
George A Mouktaris
Principal and Founder
FCA-qualified with over 45 years' experience, George established Mouktaris & Co & Co in 1979. He specialises in strategic business advisory and corporate tax planning, guiding clients through complex financial landscapes while maintaining a strong focus on client relationships.
Eliana O'Shea
Personal Tax Manager
With 25+ years in tax advisory, Eliana provides expert guidance on personal tax planning, self-assessment returns, and international tax compliance. Her client-focused approach ensures tailored solutions for high-net-worth individuals and property investors.
Anastasis G Mouktaris
Business and Tax Adviser
CFA and ACA-qualified, Anastasis specialises in corporate tax strategy, cloud accounting implementation, and business growth planning. He combines technical expertise with practical solutions for technology firms and international businesses seeking UK market expansion.
Questions
What accounting services do you offer for growing businesses?
We provide statutory financial statements, management accounts, cloud accounting implementation, and tailored bookkeeping services for startups and expanding businesses.
How can you help with UK tax compliance?
Our services include personal and corporate tax planning, HMRC investigation support, VAT health checks, and specialist advice on inheritance tax and non-domicile regulations.
Do you support international business operations?
Yes, we advise on cross-border tax planning, company formation in offshore jurisdictions, and compliance for businesses operating in Europe, Cyprus, and Greece.
What technology solutions do you provide?
Our cloud accounting experts implement real-time financial systems and offer virtual financial director services with interactive KPI dashboards and forecasting tools.
How do you assist with business growth strategies?
We offer business planning, performance analysis, R&D tax relief claims, and corporate restructuring advice to support sustainable growth and tax efficiency.
