Outsourced Payroll UK 2026: Costs, Benefits & Best Payroll Bureaux

Chandraketu Tripathi

Finance Editor, Kaeltripton

Published 4 Apr 2026

Last reviewed 4 May 2026

✓ Fact-checked

By Chandraketu Tripathi | Updated April 2026

Getting payroll wrong costs UK businesses significantly — HMRC late filing penalties start at £100/month, and errors in employee pay damage trust irreparably. Many businesses outsource payroll to a specialist bureau, trading the ongoing cost of software and staff time for a guaranteed compliant, accurate service. This guide covers what payroll outsourcing costs, what it includes, and who does it best in 2026.

Our Verdict

Outsourced payroll is most cost-effective for businesses with 1–25 employees where the bureau cost (£50–150/month) is less than the cost of payroll software plus finance staff time. For 25–50+ employees, the in-house vs outsource decision is closer — compare total cost of ownership including software, training, and compliance risk. Most UK accountants offer bureau payroll services at competitive rates — always ask your accountant first.

Outsourced Payroll Costs UK 2026

Source: expertsure.com, WhichPayroll, provider websites. April 2026.
Employees	Basic Bureau Service	Full Service (with pensions + P11Ds)	Notes
1–5	£25–50/month	£40–80/month	Minimum monthly fee applies
5–10	£50–80/month	£70–120/month	Per-employee rate applies
10–25	£80–150/month	£120–200/month	Economies of scale start
25–50	£150–300/month	£200–400/month	Consider dedicated software vs bureau
50–100	£300–600/month	£400–800/month	In-house may be more cost-effective
100+	Quote-based	Quote-based	Enterprise payroll outsourcing

What UK Payroll Outsourcing Includes

Employee gross-to-net calculations — tax, NIC, student loan deductions
HMRC RTI submissions — Full Payment Submissions (FPS) and Employer Payment Summaries (EPS)
Payslip generation and distribution — paper or digital
Auto-enrolment pension management — assessment, enrolment, contribution calculations
Statutory payments — SSP, SMP, SPP, ShPP calculations and HMRC recovery
P60 year-end reports
P11D reporting — often additional charge
CIS deductions — often additional charge for construction businesses

Best Payroll Outsourcing Providers UK 2026

Provider	Best For	Key Feature
Moorepay	Mid-large businesses, full HR + payroll	Integrated HR and payroll outsourcing
ADP Managed Payroll	Global businesses, enterprise	Global payroll + HR platform
Cintra HR	Combined HR advisory + payroll bureau	HR outsourcing + payroll in one
IRIS Payroll Bureau	Accountants, bureau payroll specialists	Strong accountant partnerships
Staffology by IRIS	SMEs, IRIS's modern cloud payroll	Cloud bureau with client portal
Local accountant/firm	Most SMEs — best value	Personal relationship, often cheapest

💡 Ask your accountant first: Most UK accountants offer payroll bureau services — and they already know your business. For 1–25 employees, your accountant's payroll bureau service is often the most cost-effective option. Typical cost: £2–6 per payslip, with year-end P60s and auto-enrolment included. Get a quote before approaching dedicated payroll bureaux.

Frequently Asked Questions

What is outsourced payroll UK?

Outsourced payroll (also called payroll bureau services) involves engaging an external payroll provider to calculate and process your employees' pay, submit RTI to HMRC, manage auto-enrolment pensions, calculate statutory payments, and handle year-end P60s and P11D reporting. Your business remains the employer — the bureau handles the administration.

How much does outsourced payroll cost in the UK?

Outsourced payroll typically costs £3–10 per employee per month for a basic bureau service, with a minimum monthly fee of £25–50. For 10 employees: typically £50–100/month. For 50 employees: typically £150–400/month. Additional services like auto-enrolment management, P11D reporting, and CIS returns cost extra. Source: expertsure.com, WhichPayroll.

What are the best payroll outsourcing companies in the UK?

Top UK payroll bureau providers include Moorepay (large UK payroll bureau), Cintra HR (integrated HR + payroll outsourcing), ADP (global payroll outsourcing), IRIS Payroll (accountant-focused), Staffology by IRIS, and many regional accounting practices offering bureau payroll. Many UK accountants also offer payroll bureau services at competitive rates.

When should a business outsource payroll rather than running it in-house?

Consider outsourcing payroll when: your team lacks payroll expertise, you have complex pay structures (multiple pay frequencies, commissions, CIS), your payroll is taking more than 2–3 hours per pay period, you have had compliance issues or HMRC penalties, or the cost of payroll software plus staff time exceeds the bureau cost.

Is outsourced payroll more secure than in-house?

Generally yes — reputable payroll bureaux have ISO 27001 certified data security, dedicated payroll expertise, and strict data handling processes. They carry professional indemnity insurance for payroll errors. The main risk is choosing a bureau that is not FCA-regulated or lacks appropriate data security credentials.

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Disclaimer: Prices change — verify with providers. Sources: Tipalti, Lightyear, money.co.uk, Ramp, Wise, Love Energy Savings, Utility Bidder, businessenergydeals.co.uk, Purely Energy, expertsure.com, expertsure.com invoice finance, HMRC, FCA. April 2026.