Umbrelaudit

The supplied primary research confirms that UK umbrella-company PAYE joint-and-several liability became active on April 6, 2026 and that the covered structure has no reasonable-steps defense. Both direct contracting recruitment agencies and some end-clients can bear liability depending on the chain. Umbrelaudit therefore cannot sell its evidence trail as a defense or transfer of liability. It maps client, agency, intermediary, umbrella, worker, assignment, contract, payment, payslip, deduction, tax period, authorized payroll report, discrepancy, reviewer, remediation, worker correction, and authority outcome. A payslip-to-report match can expose inconsistency but does not prove tax was correctly calculated, reported, paid, received, or accepted. The government publishes a real-time payroll interface, but the original stage verified no access path for this buyer or downstream corrective write; authorization, data scope, terms, and destination readback are hard gates. Signatures prove retained artifact integrity only. Worker pay, identity, tax, and employment data is restricted and never used for performance, placement, or fraud scoring.

The compliance, finance, payroll, legal, or operations leader at a UK recruitment agency or affected end-client using umbrella-company worker supply chains.