White-label payroll and HR platforms built to run several legal entities, countries and currencies from one installation — country tax rules held as editable data rather than hard-coded logic, so a budget change is a data edit, not a code release. Payroll runs go through pre-submission checks (missing bank/tax IDs, abnormal net pay, joiners/leavers, proration) and a server-enforced maker-checker approval before payslips publish, with staff self-service for payslips, leave, and profile/bank change requests.