RSM UK Payroll Review 2026: Outsourcing, Costs & Pay Manager Quick answer
RSM UK provides both managed payroll outsourcing and payroll software for businesses that want to keep payroll processing in-house and their main payroll options include:
Managed payroll: RSM’s payroll specialists process payroll on your behalfPay Manager: RSM’s cloud payroll software for businesses retaining payroll internallyPayroll consultancy: support reviewing payroll processes, systems and compliancePeople Manager: RSM’s HR platform, which can integrate with payroll
RSM says its UK payroll team currently supports more than 2,500 payroll clients and produces more than 2 million payslips per year.
Pricing isn’t published as a simple per-employee tariff, so businesses need a tailored quote.
Our view: RSM is particularly worth comparing if you want more than basic payroll software and their interesting proposition is the ability to combine payroll processing + payroll technology + HR + tax and compliance expertise.
For a very small company wanting inexpensive PAYE software, we’d compare simpler options too.
Compare RSM & Other Payroll Providers →
Free quotes • No obligation • Compare UK payroll services
Key Takeaways
RSM offers both outsourced payroll and in-house payroll software.
Pay Manager is RSM’s cloud-based payroll platform.
RSM says it currently serves 2,500+ payroll clients.
Its payroll operation produces more than 2 million payslips annually.
RSM says its payroll operation handles more than £3 billion of payroll.
Pay Manager connects directly with HMRC systems for payroll data exchange.
Employees can access payslips, P45s and P60s through a self-service portal.
RSM’s People Manager HR software can integrate with Pay Manager.
RSM doesn’t publish one simple standard payroll tariff, so businesses need a tailored quote.
We think RSM becomes most compelling when payroll complexity, compliance or internal resource is a bigger problem than simply finding cheap payroll software.
Compare Managed Payroll Services →
How do we work?
Our comparisons are researched and reviewed by the Compare Your Business Costs editorial team using provider information, official UK guidance and business buying criteria. See how Compare Your Business Costs works .
Authored by: Ally Cox – Business Technology & B2B Services Specialist, 10+ years’ experience
Last updated: October 2026
Contents
What Does RSM UK Payroll Offer? RSM UK is part of the wider RSM audit, tax and consulting network.
Its UK payroll service isn’t limited to one payroll product.
Businesses can use RSM to:
Outsource payroll processing
Run payroll internally using Pay Manager
Review existing payroll systems and processes
Access payroll consultancy
Connect payroll with RSM’s People Manager HR software
Access wider employment-tax and people advisory expertise
RSM says its payroll team currently supports 2,500+ payroll clients
and produces 2 million+ payslips per year.
It also states that more than £3 billion of payroll is processed through its payroll operation.
Our take: the first decision isn’t really whether RSM is a good payroll provider.
It’s how much of your payroll do you want RSM to take over?
That determines whether you should be looking at Pay Manager or the managed payroll service.
How Much Does RSM UK Payroll Cost? RSM doesn’t currently publish a simple universal price for its UK payroll services.
That means we wouldn’t rely on generic online estimates for cost per employee/month.
Actual pricing is likely to depend on the service and complexity required.
When requesting a quote, give RSM information including:
Number of employees
Pay frequency
Number of payrolls
Variable pay and overtime
Pension requirements
Employee turnover
Reporting requirements
Existing HR and finance systems
Level of payroll outsourcing required
Implementation and migration requirements
What should you compare?
Don’t simply ask “What does payroll cost per employee?”
Ask “What is our complete first-year cost, including implementation and every payroll service we require?”
This makes it easier to compare RSM with another managed payroll provider on a like-for-like basis.
Compare Payroll Service Costs →
RSM Outsourced Payroll RSM offers managed payroll for businesses wanting its payroll specialists to take over payroll administration.
The service is designed to reduce the internal resource required to process payroll while providing access to specialist payroll expertise.
RSM highlights benefits of payroll outsourcing including:
Access to payroll specialists
Reduced internal payroll administration
Support with changing payroll legislation
Established payroll controls and processes
Business-continuity support
Payroll technology
Scalability as the workforce changes
Why might you outsource payroll?
Imagine payroll currently depends on one experienced employee.
If that person leaves + becomes ill + goes on holiday
the business has a significant operational dependency.
Outsourcing can reduce that reliance and it can also make sense where payroll administration is taking HR or finance employees away from more valuable work.
Our view: that’s a stronger reason to outsource than simply trying to save a few pounds per employee.
The real comparison should include provider fee + internal payroll time + payroll risk + technology cost.
What Are the Downsides of Outsourcing Payroll? Outsourcing isn’t automatically better.
RSM itself highlights several potential challenges businesses should consider.
Reduced direct control
You’re relying on an external provider to process a business-critical function accurately and on time.
Provider dependency
Service quality, resilience and responsiveness become important because your organisation depends on the payroll partner.
Additional charges
Bespoke reporting, project work or off-cycle payroll runs may sit outside the standard service fee.
Implementation
Switching provider requires data migration, testing, process mapping and internal resource.
Information still needs to be accurate
Outsourcing payroll doesn’t remove your responsibility to provide correct information about starters, leavers, pay changes and other payroll inputs.
We like that RSM itself acknowledges these trade-offs.
Businesses should go into payroll outsourcing understanding what they still need to manage internally.
What Is RSM Pay Manager? Pay Manager is RSM’s cloud-based payroll software.
It’s aimed at organisations that want to keep payroll processing in-house
rather than hand the entire function to RSM.
The platform includes features such as:
Cloud-based payroll processing
HMRC connectivity
Employee self-service
Electronic payslips
P45 and P60 access
Payroll reporting
Support from RSM payroll specialists
Pay Manager & HMRC One useful feature is Pay Manager’s connection with HMRC systems.
RSM says the software allows payroll users to upload and retrieve relevant data through its HMRC connection.
For example new tax-code information can be retrieved without repeatedly exporting and importing information between separate systems.
Our take: HMRC compliance itself isn’t a unique feature — every credible UK payroll product needs to support the UK’s payroll requirements.
The more useful question is how much manual administration does the system remove?
That’s what businesses should investigate during a demonstration.
Employee Self-Service Pay Manager includes a cloud employee portal.
Employees can securely access documents including:
This reduces the need for HR or payroll teams to distribute documents manually or respond to requests for copies.
Again, that’s not revolutionary payroll functionality.
But at scale removing hundreds of small payroll-administration requests can matter.
RSM People Manager & Payroll Integration RSM also offers People Manager, its HR-management platform.
People Manager can integrate with Pay Manager.
The objective is to reduce duplicated employee information between HR → payroll.
RSM also says People Manager can integrate with existing payroll and other back-office systems.
Why does this matter?
Payroll errors often aren’t caused by the payroll calculation itself.
They can start because HR has one employee record and payroll has another.
For example, HR might record:
A new starter
A salary change
A change in working hours
Leave
An employee departure
If payroll relies on that information being manually re-entered elsewhere, there’s another opportunity for delay or error.
We think the RSM proposition becomes more interesting where a business wants payroll services and wider people support rather than an isolated payroll product.
RSM Payroll & Employment Tax Expertise Another difference between RSM and a standalone payroll-software company is access to the wider firm’s tax and people expertise.
RSM’s People Advisory offering includes areas such as:
Payroll
Employment tax
HR
Employment law
Global employer services
Reward and share plans
That could be useful for businesses where payroll interacts with more complex employment issues.
For example, RSM is currently advising employers on the forthcoming mandatory payrolling of Benefits in Kind.
Mandatory payrolling of most taxable Benefits in Kind is currently scheduled to begin from April 2027.
Our take: this is where a multidisciplinary provider can potentially add more value than payroll software alone, but only pay for that breadth if your business actually needs it.
Who Is RSM Payroll Best For? We think RSM is particularly worth comparing for Businesses wanting fully managed payroll
RSM can take over payroll processing rather than simply supplying software.
Growing businesses with increasingly complex payroll
Payroll complexity can increase with headcount, multiple pay types, locations and reporting requirements.
Businesses with limited internal payroll expertise
Outsourcing provides access to specialist payroll knowledge.
Organisations wanting HR and payroll together
People Manager and Pay Manager can provide a more connected employee-data workflow.
Businesses with wider employment-tax requirements
RSM’s broader advisory capabilities could be valuable where payroll intersects with tax and workforce compliance.
Businesses that want to keep payroll in-house
Pay Manager provides an alternative to full outsourcing.
Who might prefer something else?
If you’re a very small business that simply needs PAYE + RTI + pensions + payslips
we’d also compare simpler payroll software and smaller managed-payroll providers.
RSM’s broader expertise may offer little additional value if your payroll is extremely straightforward.
RSM UK Payroll Pros & Cons Advantages
Managed and in-house payroll options
2,500+ payroll clients
2 million+ payslips produced annually
Pay Manager cloud payroll software
HMRC connectivity
Employee self-service portal
Payslip, P45 and P60 access
People Manager HR integration
Payroll consultancy available
Wider employment-tax and HR expertise
Suitable for businesses with more complex payroll requirements
Potential Disadvantages
No simple public payroll price
Businesses need a tailored quote to compare costs
Implementation requires planning and data migration
Some additional payroll work may carry separate charges depending on the agreement
Smaller businesses with basic requirements may prefer simpler payroll software or services
What Should You Compare Before Choosing RSM? Ask RSM and competing providers the same questions.
Exactly which payroll tasks will you perform?
What will our internal team still need to do?
Who checks payroll before submission?
How are errors corrected?
What service levels apply?
Who handles employee payroll queries?
Are pension processes included?
What reports are included?
What costs extra?
Are off-cycle payrolls charged separately?
What does implementation cost?
How long does migration take?
Can we switch during the tax year?
What HR or finance integrations are available?
What is the total first-year cost?
There’s one question we think is particularly important for managed payroll “What payroll work will our team still need to do after we appoint you?”
A cheap quote can look less attractive if your employees are still responsible for collecting data + checking calculations + answering employee queries + managing pensions + producing reports.
Compare the service scope, not just the headline fee.
Compare Managed Payroll Providers →
Our View: Is RSM UK Payroll Worth It? We think RSM is most compelling for businesses that view payroll as a service and compliance problem rather than simply a software purchase.
Its strongest advantage isn’t one unusual payroll feature.
It’s the combination of managed payroll + Pay Manager + HR technology + payroll expertise + wider employment-tax support.
That creates several possible buying routes.
If you want to keep payroll internally compare Pay Manager with other payroll software.
If you want to reduce internal payroll administration compare RSM’s managed service with outsourced payroll providers.
If payroll sits alongside wider HR and employment-tax challenges RSM’s broader People Advisory capability becomes more relevant.
We wouldn’t automatically choose RSM for a five-person company with a straightforward monthly payroll.
But for a growing organisation where payroll is becoming time-consuming + complex + dependent on specialist employees
RSM deserves consideration.
The key question isn’t “Is RSM cheaper than payroll software?”
It’s “What payroll workload, risk and technology would RSM actually remove from our business?”
Compare RSM & Other Payroll Providers →
Free quotes • No obligation • Compare UK payroll services
RSM UK Payroll FAQs Does RSM offer outsourced payroll?
Yes. RSM provides managed payroll services where its payroll specialists process payroll on behalf of the customer.
What is RSM Pay Manager?
Pay Manager is RSM’s cloud-based payroll software for businesses that want to retain payroll processing internally.
How much does RSM payroll cost?
RSM does not currently publish one standard UK payroll tariff. Businesses need to request a tailored quote based on their workforce and service requirements.
How many payroll customers does RSM have?
RSM currently says its UK payroll operation serves more than 2,500 payroll clients and produces more than 2 million payslips per year.
Does RSM Payroll connect with HMRC?
Yes. RSM says Pay Manager links with HMRC systems and can exchange payroll information such as tax-code data.
Can employees access their own payslips?
Yes. Pay Manager provides an employee self-service portal where employees can access documents including payslips, P45s and P60s.
Does RSM provide HR software?
Yes. RSM offers People Manager, an HR platform that can integrate with Pay Manager and other business systems.
Can RSM handle workplace pensions?
RSM’s payroll services cover pension-related payroll requirements. Businesses should confirm their specific pension scheme, auto-enrolment requirements and service scope when requesting a quote.
Is RSM suitable for small businesses?
Potentially, particularly where a small business wants payroll expertise or outsourcing. However, very small employers with straightforward payroll should compare simpler software and managed-payroll alternatives too.
Does RSM provide payroll consultancy?
Yes. RSM can review payroll systems and processes and provide payroll consultancy as well as software and managed payroll.
Does RSM provide international payroll?
RSM operates through an international network and can support wider global payroll and employer requirements. Businesses requiring multi-country payroll should compare the exact country coverage and delivery model against specialist global payroll providers.
Is outsourced payroll better than Pay Manager?
Neither is inherently better. Pay Manager is more appropriate if you want to retain payroll internally. Outsourced payroll is more appropriate where your objective is to reduce internal payroll administration and rely more heavily on RSM’s payroll specialists.
Compare RSM With Other Payroll Providers Before choosing RSM, decide which outcome you actually want better payroll software
or less payroll work for your internal team.
That determines whether you should compare Pay Manager with software providers or RSM’s managed service with payroll outsourcing companies.
Compare Payroll Providers →
Free quotes • No obligation • Compare UK payroll services and software
Related Payroll Guides Hi, I’m Ally Cox , a senior copywriter and blogger at CompareYourBusinessCosts.co.uk, the UK’s trusted platform for comparing business services.over a decade of experience in the B2B sector, I specialise in simplifying complex topics like leased lines, VoIP, business energy, HR and payroll solutions, accounting software, and EPOS systems .HR, copywriting, and business operations- from clocking-in systems to card machines and office technology .informed, confident decisions when choosing products and services that improve efficiency and save money.
