Outsourced finance department
A complete finance function, professionally managed — without building an in-house team
Running a growing business requires more than bookkeeping. Fusion Accountants provides outsourced finance for growing UK businesses, acting as your fully outsourced finance department and managing day-to-day finance operations, reporting, cash flow, compliance, and senior oversight through a single, joined-up service.
Your own dedicated Finance Manager – Fractional FD/FC
Fully managed bookkeeping and reconciliations
VAT, payroll, and HMRC submissions managed
Fixed monthly fees — no surprises
Core benefits of outsourcing your finance function
Outsourcing your finance function is not just about saving time or reducing cost. It is about gaining clarity, control, and confidence in your financial position — while ensuring the day-to-day work is handled properly, consistently, and at the right level for your business. By replacing fragmented finance support with a single, joined-up function, businesses benefit from better insight, less operational pressure, and access to broader expertise as they grow through outsourced finance.
Expert insights
High-quality management information delivered on a consistent monthly cadence. You gain clear visibility over performance, cashflow, and key financial trends, with insight that supports confident commercial decisions and growth planning.
No hassle
Day-to-day finance administration is removed from directors and leadership teams. Bookkeeping, payroll, payments, and reporting are handled through streamlined processes, with confidence that deadlines and submissions are managed correctly.
Experienced team
Access a broader, specialist finance team rather than relying on a single in-house hire. Support spans transactional finance through to senior oversight, with ongoing advice that evolves as your business grows.
Finance function services (what’s included)
Your outsourced finance function brings together all the services required to run a modern, well-controlled finance department — delivered as one integrated team, not disconnected providers. Each service below forms part of a single, joined-up finance function and links into Fusion Accountant’s existing specialist service pages.
Bookkeeping Services
Credit Control
Business Plan Services
Management Accounts
Regular reports to help you track performance, control costs, and make informed business decisions.
Financial Forecasting & Cash Flow
Tax Advisory
A finance function built for growing UK businesses
This service is designed for established, growing businesses that need a complete, reliable finance function — without the cost, complexity, or risk of building a full in-house team. It is particularly suited to companies that have moved beyond basic bookkeeping and now require more structure, visibility, and financial control to support sustainable growth.
This service works best for:
- UK-based companies with annual turnover between £1m and £10m
- Owner-managed and director-led businesses
- Companies that have outgrown ad-hoc bookkeeping or compliance-only support
- Businesses with increasing operational and cashflow complexity
- Teams that need finance manager, controller, or fractional FD-level oversight without a full-time hire
Fusion’s finance function model is intentionally built for businesses at this stage — where financial accuracy alone is no longer enough, and proactive financial management becomes essential.
What outsourced finance function support means
Finance function outsourcing is the delegation of some or all internal finance activities to an external team. This outsourced finance approach allows businesses to run a complete finance function without building or managing an in-house team. Instead of juggling multiple providers or disconnected services, you get a single, integrated finance function covering operations, reporting, and financial oversight — all delivered in a structured, accountable way.
How is this different from traditional accounting
Traditional accounting is typically compliance-led and reactive, focusing on tasks such as bookkeeping, VAT returns, and year-end accounts. Finance function outsourcing takes a broader, more proactive approach by:
- Bringing operational finance, reporting, and oversight together
- Providing regular, up-to-date financial insight
- Supporting cashflow management and decision-making
- Aligning finance with your wider business goals
The emphasis moves from historic reporting to ongoing financial control and visibility.
One point of contact, backed by a full finance team
You work with a dedicated finance lead who understands your business and acts as your main point of contact. Behind them is a wider finance team handling bookkeeping, payroll, payments, reporting, and higher-level oversight — coordinated as one function. This gives you:
- Clear ownership and accountability
- Consistent reporting and advice
- Faster, more informed communication
The result is a finance function that feels internal, without the complexity of building one in-house.
Get your business off
to the best start.
We have helped thousands of UK businesses with their accounting needs. We seem to be doing a good job
as our clients are always happy to tell us.
Take control of your finance function
Speak with one of our finance specialists to discuss how outsourcing your finance function can simplify operations, improve financial visibility, and support confident decision-making.
How delivery works
Outsourcing your finance function should feel controlled, predictable, and easy to transition into. Our delivery model is designed to integrate smoothly with your business, establish clear rhythms, and provide ongoing visibility from day one.
Onboarding and discovery
We review your current finance setup, systems, and priorities to understand how your business operates.
Migration and transition
We manage the handover from your existing provider or in-house process with minimal disruption.
Dedicated team setup
You are assigned a dedicated finance professional supported by a wider specialist team.
Ongoing delivery cadence
Your finance function runs on a clear weekly and monthly schedule with consistent outputs.
Systems and tools
We use modern, cloud-based finance tools to ensure accuracy, automation, and visibility.
Fusion services
We provide a comprehensive range of accounting and tax services to help launch your new venture.
Controls and governance
An outsourced finance function should strengthen control, not add layers of complexity. Robust governance is embedded into day-to-day processes to protect cash, maintain accuracy, and ensure accountability — giving directors confidence that financial activity is properly managed and well documented in line with HMRC requirements.
Key controls include:
- Payment approvals: All supplier payments follow agreed approval workflows, with clear authorisation thresholds. Payments are never released without the appropriate sign-off, ensuring full visibility and control over cash outflows.
- Regular bank reconciliations: Bank accounts are reconciled on a defined, consistent schedule using modern cloud systems such as Xero cloud accounting software. This ensures transactions are accurately recorded, discrepancies are identified quickly, and cash positions remain reliable for decision-making.
- Audit trail and document retention: Every transaction is supported by a clear audit trail. Invoices, receipts, approvals, and supporting documents are securely stored and easily accessible, simplifying audits and supporting compliance requirements.
Why our clients
love us
A smarter way to run your finance function
Your business has outgrown basic bookkeeping. Fusion delivers a complete outsourced finance function — covering operations, reporting, and financial oversight — so you gain clarity, control, and time back to focus on growth. Outsourced finance is delivered under one flexible plan with transparent monthly pricing.
We are modern accountants that help businesses grow
Find out how Marco Fehrl, the Director of 29 Forward Limited, was able to run his business more efficiently thanks to our help with taxes. As part of our work for his clients in France, we did payroll, VAT returns, and EEC services. We also did the year-end accounts and personal tax returns for him.
FAQ ‘s
What is finance function outsourcing?
Finance function outsourcing is the delegation of some or all internal finance activities to an external team that operates as an extension of your business. This typically includes bookkeeping, payroll, payments, reporting, cashflow management, and higher-level financial oversight, delivered as one joined-up function rather than separate services.
How is this different from a traditional accountant?
Traditional accounting services are usually compliance-focused and reactive, dealing mainly with historic data such as VAT returns and year-end accounts. Finance function outsourcing provides ongoing operational support, regular management reporting, and forward-looking insight to help manage cashflow, performance, and growth.
Will we still have a dedicated point of contact?
Yes. You will work day-to-day with a dedicated finance professional who understands your business. Behind the scenes, they are supported by a wider finance team, giving you continuity, accountability, and access to broader expertise.
Which types of businesses is this service best suited for?
This service is designed for UK businesses with annual turnover between £1m and £10m that have outgrown basic bookkeeping and need structured financial oversight without building a full in-house finance team.
Is finance function outsourcing suitable for very small businesses or startups?
In most cases, no. Early-stage businesses with simple transactions or minimal reporting requirements are often better suited to basic bookkeeping or compliance-only services. Finance function outsourcing is designed for growing businesses with increasing financial complexity.
How quickly can we get started?
Most businesses can be onboarded within a few weeks, depending on the complexity of systems, transaction volume, and data migration requirements. The onboarding process is structured to minimise disruption and ensure continuity.
What systems and software do you use?
The finance function typically operates using cloud-based systems such as Xero, integrated with supporting tools for payroll, payments, reporting, and forecasting. Existing systems can often be retained where appropriate.
What happens if we already have an in-house bookkeeper or accountant?
Many businesses retain elements of their existing setup. We can integrate with in-house staff or manage a phased transition, ensuring continuity while improving structure, controls, and visibility.