Trusted Payroll Support That Lets You Focus on Growing Your Business
Managing payroll shouldn’t take you away from doing what you love. At Simplex, our payroll services for small business UK are designed to remove the stress of pay runs, RTI submissions, auto enrolment pensions and payroll compliance, without confusing jargon or hidden fees. We partner with you personally, offering unlimited calls, texts and emails as standard, so you always feel supported.
Save Time & Reduce Stress
We handle payroll from start to finish, including payslips, RTI reporting to HMRC and year-end summaries. You can focus on running your business while we take care of the details.
Always Compliant with UK Rules
Our team stays on top of UK payroll legislation, auto-enrolment duties and PAYE/NIC requirements. You’ll have peace of mind knowing everything is accurate and up to date.
Dedicated, Personal Support
We provide one-to-one support with real people you can contact directly. No call centres, no waiting around, just clear answers and friendly help whenever you need it.
What Our Outsourced Payroll Services Cover
Everything you need to run payroll smoothly and stay fully compliant:
✅ Full payroll processing for all employees and directors
✅ HMRC RTI submissions for each pay period
✅ Auto enrolment pension contributions admin
✅ Payslips and payroll reports
✅ Year end forms (P60, P45 etc.)
✅ Unlimited communication with your dedicated support team
“Lucy and the Simplex Team are super trust worthy. I am confident in their ability to sort out my business’ finance. They are quick, great communication and knowledgeable.”
Martini, Marketing Agency Owner
Payroll Is Just One Part of How We Support You
At Simplex, we look after your finances like they are our own. You will have someone to speak to who knows your business inside out. We keep things simple, explain what matters, and respond when you need us. You will always feel supported, never left chasing.
Why Small Businesses Choose Simplex
✨ You get clear answers without the technical waffle
✨ You do not have to wait days for a reply
✨ You use software that saves time, not creates extra admin
✨ You uncover tax savings you might be missing
✨ You feel supported, no more chasing for updates
“Lucy and the team have been very helpful with their accounting services. I’ve always had my accounts filed on time and the support has been helpful”
Sherilyn, 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 financial control centre.
Keep your records up to date with payroll data synced directly to your accounts.
Modulr
Approve payments in just a few clicks.
Send wages and taxes securely without logging into your bank.
Brightpay
Run payroll without lifting a finger.
We prepare payslips, reports, and filings so you stay fully compliant and on time.
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!
Payroll service costs vary depending on your business size and the level of support you need. Some providers charge per employee, while others offer fixed monthly packages. A good payroll service should cover everything from payslips to pension submissions. We offer flexible, all-in-one payroll support so you can stay compliant without the stress.
The best payroll service is one that’s simple, reliable and keeps you fully compliant. Look for support that includes payslips, pensions, and HMRC submissions. As a virtual accountant, we work with small businesses to handle all payroll tasks, so you can focus on running your business.
The cost of a payroll system depends on whether you choose to do it yourself or outsource it. DIY software may seem cheaper, but it often requires more of your time and attention. Outsourced payroll gives you peace of mind and helps reduce mistakes. We offer tailored support to suit your business.
There are many great payroll software options in the UK, each with different features. The best one for you depends on whether you want to manage payroll yourself or have someone handle it for you. We work with trusted payroll software and can manage the setup and monthly process for you.
Yes, you can manage your own payroll using recognised software. It’s important to keep up with HMRC rules, tax codes and pension contributions. If you’re short on time or want peace of mind, we can take care of your payroll for you and ensure everything is filed correctly and on time.
Yes, HMRC offers free payroll software for small employers with simple needs. It works for basic tasks but has limited features and doesn’t suit growing businesses. If you need something more robust or want expert support, we offer a fully managed payroll service designed for small business owners.
