Running an umbrella company is all about speed, accuracy, and compliance. But with high volumes of payroll processing, constant HMRC updates, and the need for quick turnaround, keeping everything running smoothly can put pressure on your in-house team.
That’s where QX comes in. We act as an extension of your back office, handling the heavy lifting so your team can focus on service delivery, client retention, and scaling the business.
From payroll to compliance, our back-office support outsourcing got it covered.
Whether you’re processing hundreds of payslips each week or need support with real-time RTI submissions and margin calculations, our specialist team is trained to handle it all. We understand the back-office operations and challenges umbrella companies face and tailor our support to match your needs.
Save up to 50% of operating cost and increase margins with QX’s bespoke umbrella companies back-office support.
We pinpoint gaps in your current processes and determine where our support is needed.
We conduct a thorough analysis of your specific requirements.
We provide a foolproof solution, customised to meet the unique needs of your business.
We simplify each step, ensuring seamless integration from initial scope to final delivery. Our umbrella company back-office operations are designed to enhance your efficiency and reduce your workload.
Invoicing
Payroll
Onboarding & Registration
Contractor Care
Invoicing
Payroll
Onboarding & Registration
Contractor Care

Backed by two decades of experience and a 96% CSAT score, we’re the go-to choice for 350+ accounting firms managing high-volume accounting and back-office workload with confidence.




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Experience unparalleled efficiency, accuracy, and security tailored to elevate your back-office operations with tailored umbrella company support services.








Your software, our expertise – the QX team of expert accountants is trained to use the tools you trust, ensuring a seamless and efficient process.






Have questions? Find answers to all your doubts about outsourcing back-office support for umbrella companies and discover how QX’s strategic expertise can help transform your practice.
Back-office support for umbrella companies covers the operational work needed to run payroll, invoicing, contractor onboarding, compliance, and contractor care efficiently. It can include tasks such as RTI submissions, payslip processing, payment schedules, margin reporting, document checks, and contractor queries, helping umbrella companies manage high volumes without overloading their in-house teams.
QX Accounting Services (QXAS) can handle a wide range of back-office tasks for umbrella companies, including invoicing, payroll processing, RTI submissions, contractor onboarding, pension administration, and contractor queries. We also support agency correspondence, remittances, margin reporting, compliance documentation, and day-to-day contractor care.
Yes, QXAS can support high-volume, weekly umbrella payroll cycles, including processing hundreds of payslips each week. Our support covers payroll processing, BACS files, payslip generation, RTI submissions, pensions, and related payroll administration, helping maintain speed and accuracy at scale.
QX Accounting Services (QXAS) ensures HMRC and employment compliance by keeping its teams trained on the latest UK payroll and tax legislation, including PAYE and RTI requirements. Our processes are designed to keep payroll submissions accurate, timely, and aligned with current HMRC and employment regulations.
Yes, contractor and employee data is secure with QXAS. We use ISO-certified security practices and secure file transfer protocols (SFTP) to protect sensitive information. QXAS is also GDPR-compliant and holds ISO 27001, ISO 27701, and Cyber Essentials Plus certifications.
QXAS works with the payroll and accounting systems used by umbrella companies and can operate within your existing software and processes. Our teams are trained to work with platforms including QuickBooks, Xero, Moneysoft Payroll Manager, BrightPay, Merit, and Sage, supporting seamless integration and delivery.
Umbrella firms must outsource back-office work as it helps reduce operating costs, manage high-volume payroll efficiently and scale without adding significant in-house headcount. It also frees internal teams to focus on contractor relationships, compliance, client service and business growth.
QXAS can get your umbrella back-office support up and running quickly through a structured onboarding process tailored to your existing systems and workflows. Our team works alongside your current operations with minimal disruption, helping you transition efficiently and start scaling support as required.
Explore outsourcing solutions, request a no-obligation trial or discuss your practice’s needs with our expert consultants.