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Why Eccoux?

Outsourced accounting that fits like it’s in-house

Built for accounting firms. We handle the detail — accurately, on time, and in your systems — so your team stays focused on what matters most: clients, strategy, and growth.

We work with the tools you already use. Fully compatible with leading UK accounting software.

Accounting expertise built to fit your firm

More accuracy. More efficiency. No added overhead.

Our experienced teams use proven workflows and best-in-class technology to deliver precise, reliable results — fully integrated with your systems. From day-to-day bookkeeping to year-end accounts, we handle the detail so you can move faster and grow with confidence.

Clear communication. Fast answers. Real people.

Working with Eccoux means working with a responsive team you can count on. Whether it’s a quick question or a complex request, you’ll get timely updates and clear answers — from real accountants who know your firm inside out.

Impact that adds up.

Real numbers. Real results. From tax savings to transactions processed, we help accounting firms move faster, operate smarter, and deliver more value to their clients — without adding overhead.

Your accounting support team is just one conversation away

Your accounting support team is just one conversation away

Built to power your business

Unlock expert services designed to keep your operations moving — faster, smarter, and more efficiently. From finance admin to strategic growth support, we handle the heavy lifting so you can focus on what matters most.
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Foundation
Bookkeeping Plus

Keep your clients’ books investor-ready. Outsource clean, accurate bookkeeping that’s ready to share with investors, lenders, or landlords—whenever your clients need it.

Explore Bookkeeping Solutions

Year-End Accounts Plus

Hand over year-end accounts prep and filing so your clients stay fully compliant and ready to sign off — without any last-minute scramble.

Get Year-End Accounts Support

VAT & Tax Compliance Plus

Keep tax deadlines off your plate by outsourcing VAT returns and tax filings — accurate, on time, and handled start to finish.

Stay Tax Compliant

Systems & Cloud Plus

We’ll work directly in your clients’ existing accounting systems — fully integrated, no disruption, and ready to scale.

See Our Tech Stack

Growth
Management Reporting Plus

We’ll prepare branded management reports for your clients — polished, shareable, and ready to send to stakeholders or investors.

Power Client Reporting

R&D Tax Credits Plus

Unlock extra savings for your clients with a fully managed R&D claims process — no admin or hassle required from your side.

Claim R&D Credits

Efficiency
Payroll Plus

Let us manage client payroll from end-to-end so employees get paid correctly and on time, every time — no stress, no errors.

Streamline Client Payroll

Payables & Receivables Plus

Outsource invoice processing, payment runs, and credit control to us — so your clients get paid faster and stay on top of cash flow.

Simplify Client Payments

Built for accountants who expect more

We don’t just take work off your plate — we make the experience better for you and your clients, every step of the way.

Seamless Delivery

Let client work flow effortlessly. Our team plugs into your processes and systems, delivering work the way you want it — accurate, on time, and hassle-free.

Human Support

Work with real experts who care. We’re here when you need us — proactive, responsive, and invested in your success.

Built for Scale

Outsource without outgrowing us. Our flexible model and tech-enabled workflows scale with your firm, so you’re always ready for what’s next.

We work with 200+ platforms your clients already use.

From point-of-sale to online stores, payment apps to delivery platforms — we connect the dots so your accounts stay accurate, effortless, and in sync.