Cut the Admin. Get Paid Faster. Stay in Control.
Say goodbye to invoice stress and hello to more time for what matters.
If your day is being eaten up by receipts, approvals, and chasing payments, it’s time to switch to Simplex. Our expert invoice processing service takes care of everything for you with speed and accuracy. From data entry to real-time tracking, we streamline your invoicing so nothing gets missed. With unlimited support by call, text or email, help is always there when you need it.
We Handle It All So You Don’t Have To
From scanning receipts to matching payments, we manage every step using smart tools that save time and keep your finances accurate.
See Everything In One Place
Stay on top of your cash flow with a clear view of what’s paid, what’s due, and what needs your attention. No more spreadsheets or guesswork.
Talk to Someone Who Gets It
Text, call or email whenever you like. It’s all included and you will always get a clear, friendly answer from someone who knows your business.
What You Can Expect from Our Invoice Processing Service
We help UK business owners take invoicing off their plate. Whether you’re sending or receiving invoices, we make the whole process fast, accurate and easy from day one.
With Simplex, you get:
✅ Fast, accurate invoice processing
✅ Digital storage and easy access to records
✅ Smart tools to reduce manual input
✅ Clear tracking of payments and due dates
✅ Xero integration and unlimited support
Everything’s handled online, but there’s always a real person to help when you need it.
“Keeping track of my invoices and expenses has never been easier! All I do is upload the documents to Hubdoc, which takes seconds, and Lucy does the rest!”
Hanah, Marketing Agency Owner
Support That Goes Beyond the Software
At Simplex, we don’t just automate invoices. We take time to understand how your business works, so we can tailor the process around you. You’ll never be left chasing answers or stuck in a queue. You get fast replies from a real accountant who knows your business and is ready to help whenever you need it.
Why Businesses Choose Simplex
✨ We handle every step of the invoicing process for you
✨ You save hours every week with smart automation
✨ Your records stay tidy, accurate and fully digital
✨ Our team replies quickly with clear, honest advice
✨ You get real support, not just another app
“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!”
Sapna, Marketing Agency Owner
Smart Tools, Simple Setup
We use simple, reliable tools to take the pressure off your payroll. We set everything up for you, walk you through how it works, and stay by your side whenever you need help.
Xero
Your invoicing dashboard.
Send, track and match invoices automatically, with everything synced to your accounts in real time.
dext
Receipts and bills, sorted.
Snap a photo or forward an email, and we’ll take care of the rest. No piles of paper, no lost records.
HUBDoC
Documents in one place.
Pull supplier bills and statements straight from source, so your records stay clean, accurate and up to date.
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 of processing an invoice depends on how manual or automated the system is. Traditional methods take more time and resources, while cloud-based tools or virtual accountants can help reduce overhead. If you’re looking to simplify things and save money, we offer a straightforward solution to manage your invoicing efficiently.
An invoice processor manages the steps involved in receiving, checking and approving invoices for payment. This often includes data entry, confirming details and making sure everything is ready to be paid. We help businesses handle this smoothly so you can focus on more important tasks.
ChatGPT can help put together a basic invoice, but it’s not a replacement for proper accounting software. For professional and compliant invoices, tools like Xero make the process much easier and more accurate. We work with Xero daily to help small businesses stay organised and get paid on time.
The cost of invoice processing in the UK varies depending on how your business handles it. Manual systems can be time consuming, while automated or outsourced options are often more efficient. We help small businesses reduce admin and get paid faster with smart invoicing support.
Processing an invoice can take anywhere from a few days to longer if systems are slow or manual. Delays are common without a clear process in place. We help business owners speed things up by using digital tools and simple workflows that keep things moving.
Yes, you can invoice as a sole trader or freelancer without running a limited company. You’ll need to include your name, address and other basic details. If you’re unsure how to set it up properly, we can walk you through it and make sure your invoices meet HMRC guidelines.
