
Final accounts, fully compliant — signed off with confidence, under your brand
We prepare, review, and file your clients’ year-end accounts — all within your systems, using your templates. Whether it’s Companies House or HMRC, we handle it accurately and on time, so your firm stays focused and your clients stay compliant.


Final accounts, fully compliant — signed off with confidence, under your brand
We prepare, review, and file your clients’ year-end accounts — all within your systems, using your templates. Whether it’s Companies House or HMRC, we handle it accurately and on time, so your firm stays focused and your clients stay compliant.

1,000+
year-end accounts
filed with Companies House and HMRC
99.5%
on-time filing rate
across all client submissions
100%
compliance checks
completed before sign-off

We prepare complete year-end accounts for your clients based on the bookkeeping data you provide. Everything is reviewed for compliance, formatted to your templates, and branded under your firm. Whether you need draft sets for internal review or final accounts ready to file, we ensure your clients' year-ends are wrapped up accurately, on time, and with confidence.

Our team checks trial balances and supporting schedules to identify any inconsistencies. We apply standard year-end adjustments, prepare lead schedules, and highlight anything unusual. You get clear summaries with proposed entries, helping you finalise accounts efficiently, accurately, and without having to do the legwork yourself.

Once accounts are finalised, we can help you prepare for submission. We make sure formats meet Companies House standards, assist with tagging, and double-check details to avoid last-minute errors. You submit everything under your name and login, while we take care of the admin work in the background.

If you’re handling CT600s in-house, we provide all the figures and supporting documentation you need to prepare the return. If not, we can help prepare and format tax computations for submission. Our process ensures consistency between accounts and tax, making finalisation faster and cleaner.
Services designed to support your growth
Our year-end accounts process is built to fit around your firm — not the other way around. You stay client-facing and in control while we quietly prepare compliant, accurate accounts in the background.

You bring the client in, set expectations, and remain the main point of contact. We’ll mirror your processes and work inside your systems.

From daily tasks to reconciliations and reporting, our team manages the numbers behind the scenes — clean, compliant, and up to date.

With accurate, up-to-date books behind you, you can spend more time advising clients and scaling your firm.
Get accurate, compliant year-end accounts delivered under your firm’s name. Ideal for firms looking to scale capacity without stretching their team.
What outsourced year-end accounts actually look like inside a UK firm
Year-end bottlenecks were overwhelming the team. Too many accounts to prepare, review, and file—too little time to do it right.
Eccoux took on the full year-end process: drafting, formatting, and filing accounts directly with Companies House and HMRC, all branded to the firm.
Deadlines met with confidence, zero backlog, and the internal team freed up to focus on client-facing work and higher-value services.
Straight answers to your year-end accounts questions
We prepare, review, and finalise your clients’ year-end accounts — ensuring they’re accurate, compliant, and ready to file on time. It’s a complete service that fits seamlessly into your workflows.
Yes. We’re experienced in delivering year-end accounts for both limited companies and sole traders, aligning with UK accounting standards and tailored to your client base.
Absolutely. Whether you use Xero, QuickBooks, or another platform, we plug directly into your existing systems — no need to change the way you work.
Yes. Everything is delivered under your firm’s name and branding, including final reports and communications. We work invisibly, so your clients always see you.
Our standard turnaround is just a few working days, depending on the complexity and completeness of the data. We’ll agree timelines with you up front.
You stay in full control. We prepare everything to your standards, but nothing is filed without your final review and sign-off.
We can typically begin onboarding within a few business days. A dedicated account manager will guide the process.
No long-term lock-ins. We offer flexible support that scales with you — ideal for firms during growth, team changes, or capacity crunches.
More support for your clients. Less pressure on your team.
Year-end accounts are just the beginning. From payroll to tax compliance, our expert-led services integrate into your workflows — so you can deliver more to your clients, without adding to your workload. Explore what else we can take off your plate.

Accurate, up-to-date outsourced bookkeeping delivered in your systems — giving your clients clean, compliant financials.

Fully-managed payroll services with no delays — keeping your clients’ teams paid accurately and on schedule.

HMRC-compliant VAT returns and tax filings — accurate, timely, and delivered without disruption to your firm.

Branded management reports, delivered on time — ready to share with stakeholders, clients, or internal teams.

We handle the full R&D tax credit process — unlocking savings for your clients without extra effort from your team.

Outsourced payment runs, invoice processing, and credit control — managed securely within your clients’ systems.

Working within your accounting platforms — seamlessly integrated with your tech stack, no disruption required.