Save time, stay compliant, and never miss a payday again.
Running payroll shouldn’t be complicated or risky. At Simplex, we offer fully managed payroll services for business owners who want peace of mind, not paperwork. Whether you’ve got one employee or one hundred, we ensure your payroll is processed accurately and on time, every time. No more chasing deadlines, dealing with HMRC stress, or figuring out software. Just simple, human support when you need it, on your terms.
Fully Managed Payroll
From payslips and RTI submissions to P45s, student loans, and auto-enrolment, your entire payroll is handled with precision and care.
Time and Stress Savings
Spend less time on admin and more time on growing your business. We handle onboarding and setup, so your payroll runs smoothly from day one.
Unlimited Communication
Ask us anything, any time. You can call, text, or email us whenever you need support. It’s all included, and we guarantee a response within 48 hours.

What’s Included in Our Payroll Services
Simplex takes care of the full payroll process so you can focus on your business. Our service is accurate, compliant, and completely stress-free.
✅ Monthly or weekly payroll processing
✅ Payslips emailed directly to your team
✅ RTI submissions to HMRC
✅ Auto-enrolment and workplace pensions
✅ P45s, P60s, and student loan deductions
✅ Payroll for directors and staff
✅ Unlimited communication via call, text or email
✅ Payments made using BrightPay or Modulr
“Lucy and the team are always so helpful and efficient. I trust them to take care of all my accounting, so I don’t have to worry about anything! Great service.“
Catherine, Florist

Built for Real Businesses Like Yours
Whether you’re a startup hiring your first employee, or an established company with a growing team, our payroll services for business scale with you. We take the time to understand your team structure and pay schedules, and we tailor everything accordingly. No off-the-shelf solutions. Just real support, from real people.
Fully Remote, Fully Supported
Simplex is a 100% remote firm, so there’s no paperwork, no travel, and no waiting around.
You’ll get fast, friendly payroll support no matter where you are in the UK. We’re available by phone, WhatsApp, email or Zoom. Whatever works best for you.
✅ Run payroll from anywhere
✅ Review and approve payslips online
✅ Access reports and summaries in seconds
✅ Get reminders and updates straight to your phone
Whether you’re managing a growing team or just paying yourself, 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 best payroll service is one that’s stress-free, keeps you compliant with HMRC, and fits around how your business runs. Many small business owners choose an accountant who can manage payroll alongside other services, so everything’s taken care of in one place. A virtual payroll setup with payslips, auto-enrolment and HMRC submissions is often the smoothest option.
Payroll prices can vary depending on how often you pay staff and how many people are on your team. Some services charge per employee, while others offer a simple monthly fee. If your accountant handles payroll along with your accounts or bookkeeping, you might get better value. It’s worth choosing a service that keeps things accurate and hassle-free.
Payroll services in the UK come at different price points depending on your setup. Costs usually depend on how many employees you have and how often you run payroll. Some business owners prefer to bundle payroll with their accounting services for better value and less admin. A good service will handle pensions, HMRC submissions and payslips as standard.
Yes, HMRC offers free payroll software called Basic PAYE Tools. It covers the essentials like tax and National Insurance calculations, but it doesn’t include features like payslips or pension reporting. If your business is growing or you want a more hands-off approach, a managed payroll service from an accountant might be a better fit.
The easiest way to run payroll is to hand it over to someone who knows the rules inside out. A qualified accountant can manage the whole process, from payslips to HMRC submissions, so you don’t have to worry about getting it wrong. If you’d rather do it yourself, cloud payroll software can help, but it still needs regular attention.

