Business Details
Trusted Chartered Accountants in London
Established in 1878, Thorne Lancaster Parker is one of London's leading independent accountancy practices with over 145 years of combined expertise. We specialise in delivering tailored financial solutions to private individuals and businesses across London, the Home Counties, and the UK. Our proactive approach focuses on enhancing client profitability through strategic tax planning, business development, and wealth management. With a diverse client base spanning AIM-listed companies, manufacturing sectors, and the entertainment industry, we combine traditional compliance services with forward-thinking advisory capabilities. Our team of chartered professionals brings extensive experience in audit, corporate finance, and specialist tax advisory services, including work with high-net-worth clients.We maintain statutory compliance while implementing innovative strategies to optimise financial outcomes. Our sector-specific knowledge and client-focused methodology enable us to deliver measurable value across business start-ups, succession planning, and international tax matters. As registered audit providers with the Institute of Chartered Accountants in England and Wales, we ensure rigorous compliance standards. Our technological proficiency with platforms like Xero supports modern, cloud-based accounting solutions. Through continuous client engagement, we develop deep understanding of business needs to implement practical, sustainable financial strategies.
Services
Accountancy Services
Audit and Assurance
Bookkeeping
Taxation Services
Payroll Services
Business Support
Corporate Finance
Company Secretarial
Trusts and Executorships
Highlights and features
- We offer over 145 years' combined experience in accounting and tax advisory services
- Our team includes chartered accountants and tax specialists with industry-specific expertise
- We implement tailored financial strategies for business growth and tax efficiency
- We maintain statutory compliance through rigorous audit and reporting standards
- Our cloud accounting solutions integrate with leading software platforms like Xero
Associations and certifications
- Institute of Chartered Accountants in England and Wales
Services
Accountancy Services
We provide comprehensive accounting services including preparation of statutory financial statements, periodic management accounts, and financial forecasts. Our team assists businesses with Companies House filings, accounting system implementation, and board-level financial advisory. With expertise across multiple sectors, we ensure accurate reporting while offering strategic insights to improve business performance. Our services support companies of all sizes in maintaining compliance and making informed financial decisions.
Audit and Assurance
Partner-led audit services for small and medium enterprises, owner-managed businesses, and charities. We conduct statutory audits for companies exceeding regulatory thresholds and voluntary audits for stakeholder assurance. Our team performs client money reports and compliance audits while identifying risk mitigation opportunities. With sector-specific knowledge, we deliver cost-effective audits that enhance systems and processes while maintaining regulatory compliance through detailed planning and implementation.
Taxation Services
Specialist corporate and personal tax services covering tax-efficient business structures, compliance filing, and strategic planning. We help businesses optimise tax positions through reliefs and industry-specific opportunities while assisting individuals with inheritance tax planning and trust arrangements. Our team provides HMRC liaison services, ensuring clients maximise available tax benefits while maintaining full compliance with evolving tax regulations across different jurisdictions.
Payroll Services
Comprehensive payroll management covering PAYE registration, statutory payments, and auto-enrolment compliance. We handle income tax calculations, CIS submissions, and P11d reporting while providing advisory services on payroll legislation. Our cloud-based solutions offer online payslip portals and integrated systems to streamline payroll processes. We ensure businesses maintain compliance with employment tax regulations while simplifying payroll administration for clients across various industries.
Corporate Finance
Corporate finance advisory services focusing on business growth strategies and transaction support. We assist with raising finance through investor engagement, loan arrangements, and government grants. Our expertise includes mergers and acquisitions, management buyouts, business valuations, and exit planning. We provide due diligence services for investors and strategic guidance on capital structure optimisation, helping clients implement successful growth strategies and navigate complex financial transactions.
People
Stephen Sloat
Chartered Tax Adviser
Specialising in personal and corporate tax matters since qualifying in 1973, Stephen provides expert tax advisory services to diverse clients.
John Phillips
Chartered Accountant
With over 30 years' experience in personal and corporation tax, John specialises in tax planning for sole traders and owner-managed businesses.
William Alton
Accountant
Having 16 years' experience across audit and accountancy, William specialises in corporation tax and provides client-focused solutions across multiple industries.
Harry Parker
Chartered Accountant
Qualified in 2024, Harry works across accounts and VAT services with expertise in tax advisory for high-net-worth clients.
Dev Maudhoo
Chartered Tax Adviser
Specialising in management accounts and tax services for SMEs, Dev provides comprehensive financial solutions including statutory reporting and VAT compliance.
Questions
What accounting services do you offer?
We provide financial statements preparation, management accounts, cash flow projections, and accounting system advisory services for businesses of all sizes.
Do you conduct statutory audits?
Yes, we perform statutory audits for companies exceeding regulatory thresholds and offer voluntary audits to ensure compliance and process improvement.
How does your payroll service work?
Our payroll service handles PAYE registration, tax calculations, auto-enrolment duties, and statutory payments with online payslip access and HMRC compliance.
What tax planning services are available?
We offer corporate tax structuring, inheritance tax planning, trust arrangements, and compliance services while identifying tax reliefs specific to your industry.
Do you support business start-ups?
Yes, we assist start-ups with business planning, financial management strategies, tax efficient structures, and compliance requirements for new businesses.
What corporate finance services do you provide?
We help businesses raise finance, conduct mergers and acquisitions, manage exit planning, and provide business valuations and due diligence services.
