Online Business Accountants Who Truly Support Your Business
Running a business is demanding enough. Your accountant should make life easier, not harder. At Simplex, we’re not just online business accountants. We’re your financial partner. We provide unlimited calls, texts, and emails at no extra cost. Whether you’re a start-up, sole trader or growing company, we simplify your finances, reduce your tax bill, and support your business every step of the way.
Fast and Friendly Support
No waiting around. You get unlimited communication by phone, text or email. We reply quickly and always speak your language.
Lower Tax Bills
We handle the numbers and look for ways to save you money. From expenses to company structure, we help you keep more of what you earn.
Fully Online and Easy
We set everything up for you and keep it running smoothly. With simple tools like Xero and BrightPay, your accounts stay organised and stress-free.

What’s Included in Our Service
Simplex handles every part of your business accounts so you can focus on running your company. Everything is managed online, with expert support just a message away.
✅ Monthly bookkeeping and bank reconciliations
✅ Year-end accounts prepared and filed
✅ Corporation tax returns submitted to HMRC
✅ Real-time access to your numbers in Xero
✅ VAT returns calculated and submitted on time
✅ Personalised support from your dedicated accountant
✅ Unlimited communication by phone, text or email
✅ Reminders, reports and updates straight to your inbox
“Simplex are super easy to work with. I love that I have a portal to track all documents and paperwork that need my attention. Everything else just seems to run in the background so I can focus on my business.“
Jordan, Design

Built for Real Businesses Like Yours
Whether you’re just starting out or already managing a growing company, our online business accountants work with you to keep things simple and stress-free. We take the time to understand how your business runs, then tailor everything to fit. No templates, no shortcuts. Just real support, from real people.
Fully Remote, Fully Supported
Simplex is a 100% online firm, so there’s no paperwork, no travel, and no waiting around. Everything is managed digitally, with real support from real people.
You get fast, friendly help wherever you are in the UK. We’re available by phone, WhatsApp, email or Zoom. Whatever works best for you.
✅ View your accounts anytime
✅ Upload receipts and invoices in seconds
✅ Track cash flow and performance with ease
✅ Get updates and reminders sent to your phone
Whether you’re just starting out or already growing, we’re always just a message away.

“Simplex have been an integral part of our new business, they have helped us navigate business set-up, HMRC & tax and accounting. Professional, knowledgeable, dynamic and local. We couldn’t ask for more.”
Neil, Construction
Simple Accounting
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!
The cost depends on the size and needs of your business. Some businesses only need help with year-end accounts, while others want ongoing support with payroll, VAT, and support. The key is choosing an accountant who gives you clear value and peace of mind, not just crunches the numbers.
Yes, it’s one of the best decisions you can make early on. A good accountant will save you time, help you avoid mistakes with HMRC, and make sure you’re not paying more tax than necessary. You’ll also have someone to turn to when decisions get tricky.
There’s no fixed rule, but many small businesses find that investing in the right accountant saves them more in the long run. It’s not just about ticking boxes for tax deadlines. It’s about having expert support, clear reporting, and knowing your finances are being looked after properly.
Look for someone who understands small businesses and can offer tailored support. A qualified accountant who works with business owners like you will be a better fit than a firm focused on large corporations. Virtual accountants are a great choice if you want flexibility and modern tools.
If you run a limited company, having an accountant is a smart move. They’ll handle your Companies House filings, tax returns, and make sure you’re paying yourself efficiently. It also helps you stay compliant and avoid surprises. Many small company directors find it’s a huge time-saver.
Bookkeeping is the day-to-day recording of your income and expenses. Accounting takes that information and turns it into useful reports and support. Bookkeeping keeps you organised, while accounting helps you understand what the numbers mean. For small businesses, having both services can be a real advantage.

