Tired of chasing receipts, reconciling transactions, or second-guessing your tax returns?
Let Simplex simplify things. Our fully managed bookkeeping and accounting services take care of every detail – from daily records to year-end submissions – so you don’t have to. Whether you’re a freelancer, growing business, or established company, we’ll keep your finances accurate, up-to-date, and fully compliant. No jargon, no stress – just expert support and real-time clarity.
All-In-One Clarity
From your bank feeds to Companies House, we handle it all. You’ll always know where your business stands.
Unlimited, Human Support
Call, email or message us – as much as you need. No limits, no extra fees. Just fast answers when you need them.
Built to Help You Grow
We don’t just tick boxes – we help you reduce tax, improve cash flow, and make smart decisions for the future.

Bookkeeping and Accounting, Done Properly
Let’s face it – finances can feel overwhelming. Receipts pile up, invoices go unpaid, and deadlines loom. At Simplex, we take the pressure off with reliable bookkeeping and accounting services designed to make your life easier. We manage your books, VAT, tax returns, payroll (if needed), and annual accounts – keeping you compliant and confident, month after month.
✅ No more spreadsheet chaos
✅ No confusing software
✅ No more missed deadlines
Trusted by UK Businesses Nationwide
We’re proud to be the 2022 Xero Sole Practitioner of the Year and South East Young Entrepreneur of the Year – but even prouder of our client results.
Jeanette
Isle of Wight
Lucy has been a godsend for our company. She is professional, trustworthy, competent and friendly. She has dealt with many problems s for us with a positive result. She is always available to answer any queries and deals with problems very quickly. We would highly recommend her services.
Sapna
Birmingham
Lucy and the team are amazing at just getting the job done. I know I don’t have to worry about my invoices or tax – the one thing I was worried about. All the stress is taken away and I know that Simplex Accounting are dealing with everything accurately!
Fiona
Worcester
I cannot recommend Simplex enough. Lucy has been so helpful, and got me sorted when my accounts were in such a mess! She explained everything to me, and has just made the entire process so easy. As a small business owner, having someone like Lucy helping me is exactly what you need!
Simple Bookkeeping and Accounting Services
Behind on your books? Unsure where your finances stand? Simplex takes it off your hands – fast, accurate, and fully managed. No stress, no surprises – just clear numbers and peace of mind.
Ready to take control of your accounts?

Smart Tools, Simple Setup
At Simplex, we use reliable, easy-to-use tools to power our bookkeeping and accounting services. We’ll recommend the best option for your business, handle the setup, show you how it works, and support you along the way.
Xero
Gives you a real-time view of your business. It connects to your bank, tracks income and expenses, and helps you stay on top of your cash flow. Raise invoices, check reports, and manage everything from one place.
Dext
Makes it simple to manage receipts and expenses. Snap a photo and it’s automatically uploaded and sorted. No more data entry or paper piles – just clean, accurate records synced with your accounts.
Brightpay
Takes the hassle out of payroll. It manages payslips, pension contributions, and HMRC submissions in one place. Easy to use and fully compliant – perfect for paying your team with confidence.
Getting Started is Easy!
We’ve made it simple for you to get the help you need:
Book a free consultation
Let’s talk about your business and how we can help.
Share Your Info
You can securely share your financial information with us online.
We Handle the Rest
We’ll take care of your bookkeeping and accounting, so you don’t have to worry.
Enjoy Peace
of Mind
Get regular updates and helpful advice, so you always know where your business stands.
Get started today! It will only take a minute
Switching Accountants is Easier Than You Think
Unhappy with your current accountant or just ready for a change? We make switching accountants simple and hassle-free. Our seamless process ensures your business finances stay on track without any interruptions. We’re here to support your growth and make your financial management effortless. Here’s how we handle it:
Seamless Transfer
We handle everything, ensuring your financial records are securely moved from your previous accountant.
No Disruption to Your Business
You won’t experience any downtime during the switch. We’ll work efficiently to ensure your finances are up to date without missing a beat.
A Fresh Start
Once everything is sorted, we’ll review your current financial situation and set you up with a plan that aligns with your business goals.
Ready to switch?
Get in touch today and let’s make it happen!
Accountancy Blog Posts
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!
Bookkeeping and accounting services help keep your business finances organised and compliant. Bookkeeping tracks day-to-day income, expenses, and bank transactions. Accounting goes further—analysing your figures, filing tax returns, and offering advice to help you grow. Together, they give you peace of mind and keep HMRC happy.
Bookkeeping keeps your financial records tidy—tracking what comes in, what goes out, and making sure everything adds up. Accounting takes those records and turns them into useful insights, helping with tax, financial planning, and business decisions. Both are essential for running your business smoothly and avoiding nasty surprises.
Full-service bookkeeping means you don’t have to lift a finger. It includes recording all transactions, reconciling bank accounts, managing receipts, preparing VAT returns, and liaising with your accountant. It’s perfect for busy business owners who want their finances handled professionally and stress-free.
Bookkeeping and accounting work best together. Bookkeeping lays the foundation with accurate records, while accounting helps you understand what those numbers mean. If you’re tight on budget, start with bookkeeping—but for real growth and support, accounting is the next step. Many businesses benefit from having both in one place.
Not quite! A bookkeeper records and organises your daily financial transactions—think invoices, receipts, and bank reconciliations. An accountant takes it further by interpreting that data, filing tax returns, offering advice, and helping you make strategic decisions. Both are important, but they focus on different parts of your financial picture.
It’s simple! Just schedule a free consultation with us, and we’ll discuss your needs and how we can help with your bookkeeping and accounting.