Payroll Done Right.
Every Single Payday.
Paying your team should be straightforward. But payroll brings calculations, deadlines, HMRC reporting, pension responsibilities and employee questions that all need to be dealt with correctly and on time.
Simplex provides Outsourced Payroll Services that take the regular payroll workload off your hands. We’ll manage the agreed payroll process, keep things running smoothly and make sure you know exactly what needs to happen each pay period. Your employees get paid, your payroll gets dealt with, and you get more time back.
Save Hours of Payroll Admin
Stop spending valuable time processing payroll yourself and put those hours back into running your business.
Smooth Payroll Processing
Get reliable payroll processing each pay period, helping your employees receive the right information at the right time.
Get Help When You Need It
Have a question? You can contact Simplex as often as you need by phone, WhatsApp or email at no extra cost.

Payroll Shouldn’t Take Over Your Week
Payroll might happen once a week or once a month, but the responsibility never really disappears.
There are wages to calculate, employee changes to keep on top of, HMRC submissions to make, pension duties to manage and payroll journals to keep your accounts accurate.
Eventually, managing payroll yourself stops being a good use of your time.
With Outsourced Payroll Services, Simplex takes care of the agreed payroll administration for you.
Instead of losing valuable time every pay period, you can hand the process to people who deal with payroll regularly and focus on looking after your business and your team.
Happy Team, Happy Life
Payroll isn’t just another piece of business admin. It affects your people.
Employees expect to be paid accurately and on time, and even a small mistake can quickly lead to questions, frustration and more work for you.
That’s why having a consistent payroll process matters. Simplex helps keep the agreed payroll work organised and gives you someone to contact when something changes, or you need an answer.
Whether somebody joins, leaves, receives a pay rise or has a change that affects their payroll, you’ll know who to speak to.

“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

From Payroll Details to Payday
Outsourcing payroll means you don’t have to become the payroll expert inside your business.
You provide the information we need, and we’ll take care of the agreed processing.
Your payroll support can include:
✅ Weekly or monthly payroll processing
✅ Employee payslips and payroll reports
✅ HMRC submissions and payroll compliance
✅ New starters, leavers and employee changes
✅ Statutory pay, including sick pay and parental pay
✅ Workplace pension administration and submissions
✅ Payroll journals to keep your accounts up to date
✅ Year-end payroll processing and P60s
We’ll establish a clear process so you know what information we need, when we need it and what happens next.
Lose the Payroll Admin,
Not the Control
Outsourcing doesn’t mean you stop knowing what’s happening.
You remain in control of your employees and pay decisions. Simplex takes care of the agreed payroll processing behind them, ensuring everything is handled accurately and on time.
We’ll establish a straightforward routine for sharing payroll information and make it clear when we need changes from you, so the process stays simple and predictable each pay period.
And if you have a question, you don’t need to wait until the next payroll run. Simplex clients receive unlimited calls, WhatsApp messages and emails at no extra cost, alongside our 48-hour response guarantee. We’re available from 9am to 6pm.

“Simplex have been with our company from the start and are a crucial linchpin in our Operations. They are organised, methodical, quick to respond to needs and queries and ultimately professional while maintaining a friendly, caring approach. We couldn’t ask for more.”
Neil, Construction
Simple Accounting. Less Chasing.
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
See your numbers clearly.
Your income, expenses, invoices and reports are kept in one place, so you can understand your business without relying on guesswork.
dext
Stop losing time to receipts.
Snap and send receipts easily, so your records stay organised and you do not have to dig through emails, bags or folders later.
brightpay
Make payroll feel simple.
Payslips, pensions and payroll submissions are handled clearly, so you and your team know payday is sorted.
Handing Over Payroll Is Straightforward
Switching payroll providers doesn’t need to create another headache.
TELL US ABOUT YOUR PAYROLL
We’ll understand how often you pay your employees, how payroll currently works and where you need support.
GET EVERYTHING
SET UP
We’ll gather the information needed to establish your payroll with Simplex and agree a straightforward process with you.
SEND US THE CHANGES
Each pay period, provide the relevant information such as hours, bonuses, new starters or employee changes.
LEAVE THE PROCESSING TO US
We’ll process the agreed payroll work and provide the information you need to keep payday moving.
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 outsourcing payroll depends on factors such as the number of employees, how often they are paid and the level of support required. Some providers charge per payslip or payroll run, while others offer a fixed monthly package. Additional services, such as pension administration, may also affect the price. We provide outsourced payroll support tailored to your business, giving you predictable costs while taking the time and administration of running payroll off your hands.
There is no single average price for outsourced payroll services in the UK because costs vary according to employee numbers, pay frequency and the services included. A small employer with a straightforward monthly payroll will usually pay less than a business with a larger workforce or more complex requirements. When comparing providers, check exactly what the fee includes. A reliable service should save administration time while helping you manage payroll accurately and meet important HMRC deadlines.
Outsourced payroll services involve handing some or all of your payroll administration to an external provider. This can include calculating employee pay, PAYE and National Insurance, producing payslips, processing statutory payments and submitting payroll information to HMRC. Support can also include workplace pension administration and dealing with starters and leavers. We manage payroll remotely for UK businesses, helping employees get paid correctly while reducing the payroll administration you need to handle internally.
For many small businesses, outsourcing payroll is worthwhile because it saves time and removes a regular administrative burden. Payroll involves calculations, employee changes, payslips and HMRC reporting, all of which need to be handled accurately and on time. Outsourcing gives you access to payroll expertise without employing someone internally to manage it. We can take care of the regular payroll process for you, giving you more time to concentrate on your employees and running your business.
Businesses of all sizes outsource payroll, but it can be particularly useful for small companies that do not have a dedicated payroll team. Start-ups, growing businesses and established employers can all outsource payroll to reduce administration and access specialist support. It can also work well for directors who would rather spend their time running the business than processing wages. Our virtual payroll service supports UK businesses that want a straightforward and reliable way to manage payroll.
