Business Details
16 Years
experience
Your Trusted Virtual Accounting Partner in London
Established in 2010, Business Atrium has built a reputation as a trusted provider of technology-driven accounting services. Our UK-based team specialises in delivering virtual accounting solutions to small and medium-sized enterprises, combining advanced software with expert financial insight. With over two decades of collective experience in accounting technologies like Xero, Sage, and QuickBooks, we streamline bookkeeping, tax compliance, and financial planning to empower business growth. Our team includes CIMA-certified accountants, AAT-qualified professionals, and ACCA trainees who provide tailored support for startups and established companies.We prioritise transparency, using cloud platforms like Microsoft 365 and Google Workspace to ensure clients have real-time access to their financial data. As a Silver Xero Partner and Dext-certified practice, we automate routine tasks while maintaining rigorous accuracy in HMRC and Companies House submissions. Our strategic approach extends to cashflow forecasting, investor readiness, and tax mitigation, serving ambitious business owners who value data-driven decision-making. By integrating AI tools with human expertise, we transform complex financial processes into actionable insights that drive sustainable growth.
Services
Cloud Accounting
Tax Planning
Virtual CFO
Bookkeeping
Payroll Services
VAT Returns
Financial Forecasting
Company Setup
Investor Readiness
Tax Mitigation
Details
- Year established: 2010
Highlights and features
- We have 20+ years of experience with Xero, Sage, and QuickBooks accounting systems
- Our team includes CIMA-certified accountants and AAT-qualified professionals
- We use Microsoft 365 and Google Workspace for real-time financial data access
- We guarantee HMRC-compliant submissions with automated tax calculations
- Our cloud-based processes reduce accounting errors by 90% compared to manual systems
Associations and certifications
- Association of Accounting Technicians (AAT)
- Xero
Services
Cloud Accounting
Our cloud accounting services utilise Xero, Sage, and QuickBooks to provide real-time financial management. Clients benefit from automated bookkeeping, instant reporting, and secure data access through Microsoft 365 integration. This approach reduces manual errors while maintaining HMRC compliance for VAT and corporation tax submissions.
Tax Planning
We specialise in corporate and personal tax planning using advanced forecasting tools. Our services cover income tax, VAT, capital gains, and inheritance tax strategies. With Tolley Tax helpline support and HMRC-recognised expertise, we help businesses minimise liabilities while maintaining full compliance with UK tax legislation.
Virtual CFO
Our Virtual CFO service provides strategic financial leadership without full-time costs. We offer cashflow forecasting, investor readiness support, and business planning using Dext and Xero platforms. This includes preparing SEIS/EIS funding applications and R&D tax credit claims for growth-oriented businesses.
Payroll Services
We manage payroll processing for up to 50 employees with automatic pension contributions and real-time HMRC submissions. Our cloud-based system handles salary calculations, payslip generation, and year-end returns while ensuring compliance with UK employment tax regulations.
Company Setup
We provide complete company formation services including Companies House registration, VAT/GST setup, and business bank account assistance. Our package includes Xero accounting software implementation and initial tax registration, with optional ongoing compliance support for new businesses.
People
Pavel Sizov
Senior Accountant
CIMA-certified accountant with physics degree and business ownership experience. Specialises in high-growth SMEs, tax optimisation, and process automation. Holds 15+ years of experience in Xero implementation and financial systems integration.
Lilia Milanovich
Financial Analyst
Dual Math and Economics graduate with ACCA qualification. Provides data-driven insights through advanced financial modelling. Specialises in cashflow forecasting and business performance analysis for scaling enterprises.
Olga McMahon
Accountant
AAT Level 4 qualified professional managing day-to-day accounting operations. Handles VAT returns, payroll processing, and compliance submissions. Brings 12 years of experience in SME accounting and bookkeeping systems.
Arthur Weller
Tax Advisor
CTA-qualified tax specialist with 25+ years in UK tax compliance. Provides expert guidance on corporate tax strategy, international tax issues, and HMRC dispute resolution. Maintains Tolley Tax helpline accreditation.
Martin Kaney
VAT Specialist
Former HMRC official with 30+ years VAT expertise. Advises on complex VAT schemes, cross-border transactions, and industry-specific compliance. Participates in HMRC VAT policy consultations and technical working groups.
Questions
What accounting software do you use?
We primarily use Xero as certified advisors, supported by Dext for receipt management. We also work with Sage, QuickBooks, and Microsoft 365 for clients requiring multi-platform integration.
Do you handle international tax compliance?
Yes, our team includes specialists in cross-border tax issues, VAT MOSS schemes, and international corporate tax planning. We support businesses with global operations and foreign entity structures.
Can you help with startup funding applications?
We provide SEIS/EIS compliance support, investor-ready financial projections, and R&D tax credit claims. Our Virtual CFO service prepares businesses for angel investment and venture capital funding.
How do you ensure data security?
We use Microsoft 365 with enterprise-grade encryption, multi-factor authentication, and regular security audits. All client data is stored in ISO 27001-certified cloud environments with daily backups.
What's included in your essential accounting package?
The package covers bookkeeping (up to 50 transactions/month), VAT returns, annual accounts, payroll (up to 2 employees), and Xero setup. Includes receipt scanning software and quarterly financial reviews.
Do you offer industry-specific accounting services?
We specialise in tech startups, professional services firms, and retail businesses. Our team understands sector-specific tax reliefs, compliance requirements, and financial KPIs for these industries.
