Joint and Several Liability (JSL): How TRANSPARENCY Can Help You Audit, Analyse, and Stay One Step Ahead
Article posted June 18, 2026, Tagged in Advance
Article posted June 18, 2026, Tagged in Advance
The temporary labour market has undergone its most significant compliance shift in recent history. With HM Revenue and Customs (HMRC) introducing Joint and Several Liability (JSL) rules for the umbrella company sector, recruitment agencies and end-clients now face absolute financial exposure for unpaid supply chain taxes.
Historically, if an umbrella company failed to remit Pay As You Earn (PAYE) income tax or National Insurance Contributions (NICs), the tax debt largely sat with that specific entity.
Under the JSL framework—introduced via the Finance Bill and inserted as a new Chapter 11 into Part 2 of the Income Tax (Earnings and Pensions) Act (ITEPA) 2003—that risk is shared with an agency or MSP.
If an umbrella company defaults, HMRC can bypass them and pursue the "relevant party"—the recruitment agency contracting with the client, or the end-client itself if no agency is involved.
Because this is a strict liability regime, standard contractual indemnities or general industry accreditations are no longer a foolproof shield. There is no statutory "reasonable excuse" defence. The only way to neutralise this risk is through proactive supply chain auditing and real-time oversight.
This is exactly where the ADVANCE TRANSPARENCY Portal shifts your strategy from reactive guesswork to total operational control.
Mitigating strict liability requires moving away from disconnected spreadsheets and late-reported payroll runs. You need data that is immediate, filterable, and verified directly at the source.
The ADVANCE TRANSPARENCY Portal is designed around these exact compliance requirements, protecting your business through five core functions:
When an umbrella company bundles multiple client payrolls into a single, massive tax remittance, tracking individual worker accuracy becomes incredibly complex. The portal helps isolate liabilities down to an individual worker level.
By breaking tax data down to the individual PAYE record, you can easily verify that the specific income tax and NICs matching your temporary worker have been allocated correctly.
You can link directly from the portal to the HMRC Government Gateway, where you can log in to your individual PAYE reference assigned to you by ADVANCE. Here, you can see with certainty the liabilities and the payments made in full view, removing the need for complex segmentation to unravel the monies due and paid.
Waiting 30 to 40 days for a monthly payroll report to flag a compliance error leaves your business exposed to weeks of accumulated liability. The TRANSPARENCY Portal displays payroll data in real-time. The moment a payment is processed, the corresponding tax breakdown is visible, allowing you to catch, challenge and fix payroll anomalies instantly.
TRANSPARENCY offers its users 23 data fields to filter through. This extensive range of data enables each agency partner to audit and analyse the information according to their needs. This function, coupled with real-time data, means you don’t have to wait for the information; you can find what you need there and then.
Whether it is for internal compliance checks, year-end reviews or external HMRC audits, the TRANSPARENCY Portal allows you to export comprehensive datasets instantly. With just a few clicks, you can generate clear, formatted CSV reports that prove compliance and match your financial records, transforming time-consuming audits into a seamless, stress-free process.
The introduction of Joint and Several Liability means that a hands-off approach to umbrella payroll compliance is a major financial risk. If your supply chain partners cannot show you their data, they are exposing your business to their potential liabilities.
By leveraging real-time data tracking, individual PAYE isolation, and direct HMRC gateway validation, the ADVANCE TRANSPARENCY Portal removes the blind spots from your temporary workforce management.
It gives your finance, legal, and compliance teams the clear operational insights they need to audit effectively, analyse accurately and always keeps them one step ahead of regulatory risks.
Don't let umbrella non-compliance threaten your business. Request a live demonstration of the TRANSPARENCY Portal today and give your finance, legal, and agency teams total peace of mind. Sign up here.