Company Accounting Services That Help Your Business Thrive
No more tax stress, missed deadlines or unclear numbers. Simplex offers fully managed company accounting services tailored to your business with unlimited support included. Whether you’re launching a limited company or managing a growing team, we handle your accounts, tax, payroll and filings so you can stay focused on running the business. We’re proactive, personal and always available when you need us.
Smart Tax Planning
We help you reduce your tax bill with clear, proactive advice. Understand your numbers, make better decisions and keep more of what you earn.
Fully Managed Filing
We prepare and submit your annual accounts, corporation tax returns and confirmation statements with complete accuracy. Everything is filed on time so you stay fully compliant.
Unlimited Support
Call, WhatsApp or email us anytime. You’ll always get a fast, helpful response from someone who knows your business, with no extra charges.

What You Get with Our Company Accounting Services
We help UK businesses stay organised, compliant and tax-efficient. Whether you’re just starting out or already growing, Simplex gives you the tools and support to stay in control.
✅ Annual accounts and tax returns filed on time
✅ Clear advice to reduce your tax and plan ahead
✅ Payroll and pensions managed for you
✅ Unlimited support by call, text or email
✅ Easy-to-use tools that fit your business
With Simplex, you get more than just accounting. You get answers, clarity and ongoing support whenever you need it.
“Lucy at Simplex Accounting is great to work with and ensures that all our accounts are up-to-date”
Graeme, Construction
Your Accountant, Wherever You Are
You don’t need to visit an office or book long meetings. Simplex works fully online, giving you fast, flexible support wherever you’re based.
Whether you’re at home, on site or in the office, your accountant is just a call, text or email away. You get quick answers from someone who understands your business.


Why Companies Choose Simplex
✨ Services built around your company goals
✨ Unlimited contact by phone, text or email
✨ Fast replies from someone who knows your accounts
✨ No jargon, no stress, no hidden fees
✨ Award-winning team that genuinely cares
Simplex gives you expert support that’s clear, personal and built to help your business grow.
“I have loved outsourcing my accounts & bookkeeping to Lucy and the team. They are very efficient and make accounting seem so simple!”
Hanah, Marketing
Smart Tools, Simple Bookkeeping
We set you up with easy, reliable tools so your finances stay organised without adding to your to-do list. Everything is customised for the way you work, and we’re always here if you need help.
Xero
Stay organised without spreadsheets.
See your income, expenses and invoices in one place, always up to date and ready when you need it.
dext
No more chasing receipts.
Snap a photo or forward an email, and your bills and receipts are stored, sorted and matched to your accounts.
brightpay
Stress-free payroll.
Payslips, pensions and submissions are taken care of, always on time and fully compliant with HMRC.
Getting Started is Easy!
We’ve made it simple for you to get the help you need:
Book a Free Call
Tell us about your business and what you need.
Send Your Info
Share your financial details securely online.
We Do the Work
We’ll sort your accounts and keep everything up to date.
Stay in Control
Get updates and support, so you always know where you stand.
Book your free discovery call! It will only take a minute
Time to Switch Accountants?
You don’t need to stay stuck with support that’s slow or confusing. Switching to Simplex is smooth and handled for you.
Seamless Transfer
We contact your previous accountant and securely move everything over, CIS, VAT, payroll and more.
No Disruption
Your accounts stay up to date while we handle the switch, so nothing gets missed.
A Fresh Start
We review your numbers, identify gaps, and get you set up with a clear plan that works for you.
Ready to switch? Let’s make it happen.
Helpful Resources
Your Questions, Answered
We know you might have some questions, and we’re here to make everything as clear and straightforward as possible. If you need more information, don’t hesitate to reach out—we’re always happy to help!
We offer full company accounting services including year-end accounts, Corporation Tax returns, bookkeeping, payroll, VAT, and support for directors. You’ll also get proactive advice throughout the year, not just at tax time. Everything is tailored to your business so you always know what’s due, when, and why. We work virtually across the UK, making it easy to stay on top of your finances without the faff.
Yes, legally and efficiently. We’ll review your setup, expenses, and allowances to make sure you’re not overpaying. From salary and dividends to R&D claims and pension planning, we’ll guide you through smart ways to reduce your tax bill. No jargon, just practical savings that suit your business and future plans.
Absolutely. We take care of the handover for you so there’s no need for awkward conversations. Once you give us the go-ahead, we’ll contact your current accountant, request the records we need, and get everything set up smoothly. Most switches are done in a week and we’ll keep you updated throughout.
We specialise in limited companies, especially small businesses and directors, but we also support sole traders, partnerships, and startups. If you’re planning to grow or incorporate in the future, we’ll help you choose the right structure and make a plan that fits your goals.
We use Xero for all our clients so everything is clear, consistent, and easy to manage. If you’re not already using it, we’ll help you get set up and show you how to get the most from it. We also use secure online tools for document uploads and e-signatures, keeping everything straightforward and fully digital.

