Business Details
46 Years
experience
Trusted Accountants in London
Established in the late 1980s, Ratnam & Co & Co has grown into one of Northwest London's leading accountancy practices. Our firm specialises in delivering tailored financial solutions to businesses, high-net-worth individuals, and international clients. With expertise in tax advisory, business strategy, and compliance services, we combine technical excellence with a client-centric approach. Our team's experience in handling complex tax investigations and our commitment to understanding each client's unique needs set us apart. We maintain a strong reputation for reliability, having served multiple generations of clients, and continue to uphold the founding principles of integrity and comprehensive financial guidance. 
Services
Annual accounts
Bookkeeping
Business Start-ups
Company Secretarial
CIS services
Corporation Tax
Payroll
VAT returns
Tax planning
Details
- Year established: 1980
Highlights and features
- We offer 40+ years of experience in accountancy and tax advisory
- Our team provides tailored financial solutions for businesses and individuals
- Specialists in complex tax investigations and compliance matters
- Personalised service with multi-generational client relationships
- Expertise in international client requirements and business growth strategies
What people say
Exceptional services
Knowledgeable team
Accurate advice
Responsive support
Trusted partner
Services
Annual accounts
We prepare statutory accounts for Companies House and HMRC submissions. Our service includes financial statement preparation, cash-flow projections, and compliance checks. Businesses receive timely, accurate reporting that meets regulatory requirements while gaining valuable financial insights.
Bookkeeping
Our cloud-based bookkeeping service manages daily transactions, VAT returns, and year-end accounts preparation. We ensure accurate financial records through modern accounting systems, providing monthly reports for better business decision-making.
Business Start-ups
We support new businesses with structure selection, tax efficiency planning, and compliance setup. Our service includes company registration, software selection, business plans, and ongoing financial management support for sustainable growth.
CIS services
Specialist Construction Industry Scheme services for contractors and subcontractors. We handle HMRC registrations, monthly returns processing, and tax compliance to ensure adherence to complex construction sector tax regulations.
Tax planning
Comprehensive tax advisory covering corporation tax, capital gains tax, and property tax planning. We help businesses and individuals optimise tax positions through legitimate reliefs and efficient financial structuring.
People
Sam Ratnam
Founder
Qualified Chartered Accountant with 40+ years' experience. Established Ratnam & Co & Co in the 1980s after working with international organisations. Specialises in complex tax investigations and business advisory.
Gopin Ratnam
Partner
Experienced accountant focusing on business strategy and financial solutions. Continues the firm's tradition of delivering tailored advisory services to business owners and high-net-worth individuals.
Questions
What accounting services do you offer?
We provide annual accounts preparation, bookkeeping, VAT returns, payroll services, and company secretarial support.
Do you support business start-ups?
Yes, we offer business structure advice, company registration, and financial planning for new ventures.
Can you help with tax investigations?
Our specialists have extensive experience defending clients during HMRC investigations and compliance checks.
Do you offer digital accounting solutions?
We support Making Tax Digital requirements and provide cloud accounting system implementation and training.
What business advisory services are available?
We offer strategic planning, funding advice, exit strategies, and tax-efficient financial structuring solutions.
