The incoming umbrella legislation is reshaping how agencies and MSPs think about responsibility, risk and oversight across their supply chains.
\nFrom April 2026, the party closest to (and contracted with) the end client – often the agency or MSP – may be held jointly and severally liable for unpaid PAYE and National Insurance where non-compliance occurs elsewhere in the chain.
\nAs implementation approaches, we\u2019re hearing from more and more agencies and MSPs who recognise the significance of the shift, but aren\u2019t always clear what it means in practical, day-to-day terms. That\u2019s where we can help.
\nBelow are some of the most common questions we\u2019re being asked – in plain English, with practical answers to support agencies and MSPs strengthening supply-chain governance and reviewing PSLs under the new framework.<\/p>\n
JSL means more than one organisation can be held responsible for the same unpaid tax liability.
\nIn the umbrella context, the April 2026 legislation gives HMRC the ability to pursue unpaid PAYE and NICs from another party in the labour supply chain where an umbrella has failed to operate payroll correctly.
\nThe key point is simple: under JSL, the only legal test that ultimately matters is whether PAYE and NICs were paid correctly to HMRC – not whether policies existed, audits were completed, or compliance could be evidenced.
\nFor agencies and MSPs, this means compliance can\u2019t be outsourced – and risk can\u2019t be ignored simply because it sits elsewhere in the chain.<\/p>\n
Because it changes both the risk and the operational expectation.
\nFinancial exposure:
\nHMRC can recover unpaid liabilities on a joint and several basis – even if the operational failure occurred elsewhere.
\nReputation risk:
\nContractor pay issues and deductions disputes escalate fast and can damage trust with both contractors and clients.
\nOperational impact:
\nSupplier governance needs to be consistent, repeatable and real – not just documented.<\/p>\n
In most models, it\u2019s the organisation closest to the end client and holding the contract – commonly the agency or the MSP.
\nThat\u2019s why JSL is pushing supplier decisions up the agenda. Not because paperwork creates safety, but because real operational visibility, supplier quality and governance confidence now matter far more.<\/p>\n
No. But it does mean agencies and MSPs must run their supply chains on the basis that liability can arise if tax is unpaid, regardless of where the failure occurs.
\nIn practice, that means focusing on:
\nKnowing who is in your supply chain (and why)
\nSetting clear operational standards
\nApplying those standards consistently
\nBuilding real visibility into payroll and reporting
\nHaving escalation and remediation routes that work in the real world
\nThis isn\u2019t about defensibility – it\u2019s about reducing the likelihood of failure and spotting issues early.<\/p>\n
Three practical priorities: It\u2019s not just what you check – it\u2019s what you can see and understand in practice. Patterns that consistently signal risk: If a provider can\u2019t explain their model clearly and show what happens month after month, confidence should be low.<\/p>\n Ask for a practical JSL visibility pack, including: Strong partners won\u2019t just send PDFs – they\u2019ll give you ongoing access to information, not one-off documents.<\/p>\n No. Sapphire is FCSA-accredited (seven consecutive years), SafeRec Certified and an APSCo Trusted Partner, with a 4.9 Trustpilot rating (4,106 reviews). But service quality matters because when payroll fails, everyone feels it. Coming soon: live dashboard access for agencies Plus monthly confirmation emails including: The outcome isn\u2019t \u201ccompliance theatre\u201d – it\u2019s real visibility, cleaner audit trails and stronger operational confidence.<\/p>\n Focus on repeatability, not heaviness. Good governance should reduce friction over time – not increase it.<\/p>\n Early action prevents operational damage.<\/p>\n The safest route is to work with umbrella partners who combine strong compliance foundations with ongoing transparency, operational stability and financial sustainability. If you\u2019re reviewing your umbrella PSL for JSL readiness, we can help you pressure-test what you have today and identify what real operational visibility looks like – including how our upcoming agency dashboard supports cleaner monthly governance and confidence.<\/p>\n","protected":false},"excerpt":{"rendered":" The incoming umbrella legislation is reshaping how agencies and MSPs think about responsibility, risk and oversight across their…<\/p>\n","protected":false},"author":1,"featured_media":2298,"menu_order":0,"template":"","class_list":["post-2290","insights","type-insights","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"\n
\n1) Set non-negotiable PSL standards<\/strong>
\nDecide what \u201ccompliant and dependable\u201d means for your business – operationally and financially – and document it.
\n2) Build evidence into BAU<\/strong>
\nNot as protection, but as visibility. You want regular insight into what\u2019s happening, not a scramble for documents after a problem appears.
\n3) Protect the contractor experience<\/strong>
\nIf you need to change suppliers, plan communications, onboarding and support so you don\u2019t trigger avoidable churn.<\/p>\nWhat does \u201cgood due diligence\u201d look like under JSL?<\/h2>\n
\nAt a minimum, agencies and MSPs should be able to access:
\nCurrent accreditations (e.g. FCSA, SafeRec) and what they actually cover
\nIndependent audit evidence (scope, dates, outcomes)
\nTransparent, itemised payslips showing PAYE and NIC treatment
\nProof of RTI submission
\nProof of PAYE\/NIC payments to HMRC
\nClear processes for pensions, statutory payments and deductions
\nA contractual right to audit
\nNamed escalation contacts and documented resolution routes
\nNot because this creates protection – but because it creates confidence, visibility and early warning.<\/p>\nWhat are the biggest red flags to look out for when reviewing umbrella providers?<\/h2>\n
\nPayslips without clear PAYE\/NIC itemisation
\nFragmented or split payroll documents
\nWeak or outdated independent audit evidence
\nFrequent amended tax filings without a clear explanation
\nUnclear cross-border structures
\nPoor service delivery (because service failure quickly becomes risk failure)<\/p>\nWhat should we ask umbrella partners to provide during a PSL review?<\/h2>\n
\nAccreditation and audit scope
\nSample payslips
\nRTI evidence
\nHMRC payment evidence
\nStatutory and pension processes
\nSLA\/performance metrics
\nRight-to-audit commitments
\nAccess to repeatable reporting<\/p>\nIs accreditation enough on its own?<\/h2>\n
\nAccreditation is a baseline, not a guarantee. In a JSL world, confidence comes from consistent operational transparency, not badges.
\nThe strongest approach is layered – not as protection from liability, but as a way to reduce risk and increase confidence:
\nIndependent accreditation
\nIndependent reporting\/auditing
\nOperational transparency
\nReliable service performance<\/p>\nHow is Sapphire responding to JSL – beyond \u201cmore paperwork\u201d?<\/h2>\n
\nThe question agencies now ask isn\u2019t \u201care you accredited?\u201d – it\u2019s:
\n\u201cHow can we see what\u2019s happening month after month?\u201d
\nThat\u2019s why we\u2019re enhancing agency visibility.<\/p>\n
\nOur new customer portal will give agencies direct access to:
\nMonthly P32 summaries (PAYE\/NIC liabilities)
\nProof of RTI submission and IR Marks direct from HMRC
\nDownloadable HMRC payment confirmations
\nFiltered payslip access by tax month and agency<\/p>\n
\nP32 copies
\nConfirmation of HMRC payment clearance<\/p>\nHow do we strengthen governance without creating loads of admin?<\/h2>\n
\nThe most effective models include:
\nClear minimum standards
\nCentralised evidence access
\nRegular reporting
\nConsistent consultant training
\nAutomated visibility where possible<\/p>\nWhat should we do if we spot a potential compliance issue?<\/h2>\n
Act early and clearly:
\nEscalate immediately
\nRequest evidence in writing
\nAgree remediation steps and timelines
\nPause onboarding if confidence drops
\nPrioritise contractor pay and communication<\/h2>\nThe takeaway for agencies and MSPs<\/h2>\n
\nNot because this creates legal protection – but because it creates confidence, visibility and early warning.
\nThat\u2019s how Sapphire operates, and it\u2019s why agencies and MSPs are choosing to work with us.<\/p>\nWant a PSL visibility review ahead of April 2026?<\/h2>\n