Running payroll shouldn’t take over your week
If you’re an SME owner juggling endless tasks, payroll is probably eating into time you could spend growing your business. From tax codes and RTI submissions to employee payslips and pensions, it’s easy to get bogged down or risk costly errors. At Simplex, we take payroll off your plate completely. You stay compliant, keep your team happy, and focus on what you do best.
Stay Compliant
We handle RTI filing, auto-enrolment, and year-end reports using tools like BrightPay and Modulr, so nothing slips through the cracks.
Unlimited Support
Questions or changes? Just call, WhatsApp or email. You’ll always get a fast response, and we never charge extra for our time.
Built to Scale
Whether you’ve got one employee or fifty, we manage your payroll smoothly with no hidden fees or complicated setup.
What’s Included in Our Service
Simplex takes care of payroll so you can focus on running your business. Everything is managed with care by real people, with unlimited support always just a message or call away.
✅ Weekly or monthly payroll runs handled for you
✅ Payslips sent directly to employees
✅ Real-time HMRC submissions (RTI)
✅ Auto-enrolment pension setup and filing
✅ Changes, leavers, and new starters all managed
✅ Secure employee portals using BrightPay
✅ Unlimited advice by phone, text or email
✅ Year-end summaries and compliance handled
“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, Designer
We’re Not Just Payroll Processors. We’re People Who Care.
You’ll never be passed around or left waiting. At Simplex, you get personalised, human support, backed by real expertise and award-winning service. We learn your business inside and out, then tailor our approach to what works best for you and your team.
Fully Remote, Fully Supported
Payroll with Simplex means no software headaches, no compliance worries, and no chasing deadlines. We take care of it all behind the scenes so you can focus on running your business with confidence.
Wherever you’re based in the UK, you’ll get personal support from your own accountant. We’re available by phone, WhatsApp, email or Zoom. Choose whatever works best for you and your team.
✅ Pay your team weekly or monthly without lifting a finger
✅ Stay compliant with RTI submissions and pension rules
✅ Get new starters and leavers processed quickly
✅ Receive reminders, reports and updates automatically
Whether you’re hiring your first employee or managing a growing team, we’re here to keep things simple and stress-free.
“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…“
Sapna, Marketing Agnecy Owner
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!
SME payroll refers to payroll services tailored for small and medium-sized enterprises. It covers everything from calculating wages and PAYE to handling pensions and HMRC submissions. For busy business owners, outsourcing payroll can save time, reduce errors, and ensure compliance with UK tax laws. We help small businesses run payroll smoothly, so you can stay focused on growing your business.
The best payroll system for small businesses is one that’s easy to use, compliant with UK laws, and scalable as you grow. Cloud-based solutions like BrightPay or Xero Payroll are popular because they automate tasks, manage RTI submissions, and keep everything in one place. We can help you choose the right system and even run it for you, so it’s one less thing to worry about.
The four common types of payroll systems are in-house, outsourced, software-based, and manual. Each comes with pros and cons depending on your business size and time available. Most small UK businesses benefit from either cloud-based software or fully outsourced payroll to save time and reduce stress. We offer both, depending on what suits you best.
The best way to pay employees is through a reliable payroll system that handles PAYE, pensions, and HMRC reporting. Most small businesses use BACS payments through cloud-based payroll software to ensure staff are paid on time and records stay compliant. We support small businesses with payroll that’s simple, accurate, and fully HMRC-aligned.
In the UK, SMEs are generally grouped by size into micro, small, medium, and sometimes startup or early-stage businesses. Each type has different payroll and compliance needs, especially as you grow. Whether you’re just hiring your first employee or scaling up a team, we can tailor our services to support your next step.
In payroll, SME stands for small and medium-sized enterprise. It refers to businesses with fewer than 250 employees. SMEs have different payroll needs compared to larger firms, often needing flexible, affordable solutions that stay compliant. We specialise in helping UK SMEs manage payroll without the stress or risk of falling behind on HMRC rules.
