HR Software With Built-In UK Payroll: 2025 Guide

Most HR platforms marketed to UK businesses do not include native payroll. They handle HR features — leave, documents, onboarding — and integrate with a separate payroll tool. The integration may be seamless, or it may require manual data transfer. Either way, payroll is a separate system with a separate subscription and a separate point of failure.

Platforms that include genuinely native UK payroll — meaning PAYE calculation, NI, pension auto-enrolment, RTI submission to HMRC — in the same product as their HR module are fewer than the market suggests. Mellow is one. Sage (with Sage HR and Sage Payroll as a bundle) is another, though the two Sage products are technically separate. At the enterprise end, large HRIS platforms like Workday include payroll, but their pricing and implementation complexity make them unsuitable for businesses below 500 employees.

For UK businesses between 5 and 250 employees that want HR and payroll genuinely integrated — same employee record, same platform, same support — the practical shortlist is short. Mellow's per-employee pricing at the Professional tier includes full PAYE payroll, RTI submission, pension auto-enrolment, and all statutory payment calculations. The 14-day free trial includes payroll, so you can run a test payroll calculation before committing.