Own the deployment
Run the platform on infrastructure you control, with documented backup, restore and upgrade paths.
Open-source · Self-hosted · UK-first
Payroll software you can inspect, control and improve.
PayrollOS is a transparent UK payroll platform built for organisations that want clear controls, portable data and infrastructure they can own.
Early test release · Synthetic data only · No live submissions or payments
A different foundation
Control without a black box
Payroll is too consequential for vague status messages and invisible authority.
See the controls
Scope access by organisation and employer, separate preparation from approval, and retain tamper-evident events.
Build in the open
Inspect the source, challenge decisions and contribute improvements under an open-source licence.
First working slice
From secure sign-in to a controlled payroll rehearsal
The current LAN release connects real interfaces to a tenant-scoped API and synthetic-only data.
Passkeys, authenticator apps and recovery
Mandatory enrolment, active-session controls and audited account access.
Scoped setup with protected identifiers
Employer, PAYE scheme and employee workflows with masked sensitive values.
Draft, calculate, resolve, review and approve
A deterministic illustrative calculation with exceptions and independent approval.
Provenance first, credentials never
Labelled historical records and truthful test-only connector configuration.
Release boundary
Safety before slogans.
This is an early, synthetic-only engineering release. Its calculation is illustrative—not a statutory UK payroll engine—and it cannot submit RTI, send pension data, post accounting journals or move money.
That boundary is deliberate. Each consequential capability remains disabled until its own validation, security and operational release gates have passed.
Open the internal test workspace The workspace is currently available only on the authorised private network.