UK IR35 in 2026 — More Firms Exempt, but New Umbrella-Company Liability Cuts the Other Way

Two UK Contractor-Tax Changes Pulling in Opposite Directions

The UK umbrella-company PAYE changes apply from 6 April 2026. Separately, company-size thresholds changed from 6 April 2025, but HMRC says their off-payroll working impact starts no earlier than 6 April 2027. These are different changes with different timelines.

This is a UK-specific update to the classification themes in Remote Hiring Compliance 2026. A quick primer on what IR35 is comes first, then the two changes and what to do about them.

What IR35 Actually Is

IR35, or the off-payroll working rules, is UK tax law aimed at "disguised employment" — contractors who supply their services through their own limited company (a personal service company, or PSC) but who, in substance, work much like employees. Where the rules apply, employment taxes (PAYE income tax and National Insurance) become due as if the person were employed, removing the tax advantage of the company structure.

Since April 2021, for medium and large clients, the responsibility for deciding a contractor’s status — issuing a Status Determination Statement and bearing the tax risk if it is wrong — sits with the end client, not the contractor. Small clients are exempt: for them, the older rule applies and the contractor’s own company assesses status and carries the liability. That "small company" exemption is exactly what the first 2026 change expands.

Change One: Higher Company-Size Thresholds, With a Later Off-Payroll Effect

The company-size thresholds increased from 6 April 2025: turnover to GBP 15 million and balance-sheet total to GBP 7.5 million, with the employee threshold remaining 50. The relevant company-size and assessment rules determine whether a client qualifies as small.

A client should not stop making status determinations merely because its current turnover is below the new threshold. HMRC says there is no practical off-payroll impact before 6 April 2027. Confirm the relevant accounting periods and the rules for changes in company size before altering the process.

Change Two: Umbrella-Company PAYE Liability Moves Up the Chain

Pulling the other way, a second reform effective 6 April 2026 targets non-compliance in the umbrella-company market. Where workers are supplied through an umbrella company, HMRC can now impose joint and several liability for PAYE income tax and National Insurance on another party in the labour-supply chain if the umbrella fails to operate PAYE correctly — for instance, deducting tax but not remitting it (GOV.UK).

Identify the agency contracting with the end client, or the end client where no agency is involved, and check its responsibilities under the umbrella rules. Do not assume that the party immediately above the umbrella is always the liable agency in a longer supply chain.

Why It Cuts Both Ways

The two changes are easy to misread in isolation. Together they rebalance risk rather than simply reduce it.

• The threshold changes can move some clients into the small-client rules once the relevant assessment applies. This changes who assesses the engagement; it does not abolish IR35 for the contractor’s company.
• The tightening. Anyone using umbrellas in their supply chain now carries new potential liability for PAYE the umbrella should have paid — a fresh exposure that rewards scrutiny of who is actually running payroll.

The net is not "IR35 got easier." It is that the point of risk moved. Firms that engage contractors directly through PSCs may feel lighter; firms that rely on umbrella companies now have a strong reason to vet them harder than before.

What to Do About It

1. Check whether you actually become "small" — and when. Remember the size test looks at the prior financial year, so confirm the year that applies before changing how you treat any contractor; for most, the practical shift is from April 2027.
2. Don’t drop status determinations prematurely. Until you genuinely qualify as small on the relevant assessment, keep issuing determinations and applying the current rules.
3. Audit your umbrella supply chain. Identify every umbrella in your contractor arrangements and assess their PAYE compliance — you may now be on the hook for their failures.
4. Tighten contracts and due diligence. Build umbrella-compliance checks and appropriate indemnities into agreements with agencies and umbrellas.
5. Take advice on borderline cases. IR35 status and supply-chain liability are fact-specific; where the stakes are material, professional advice is cheaper than an HMRC assessment.

The Bottom Line

Keep the two timelines separate: company-size thresholds changed in April 2025, their off-payroll effect starts no earlier than April 2027, and umbrella-company PAYE changes apply from April 2026. Check the applicable company-size assessment and the actual supply chain before changing responsibilities.

RemoteStaffingWiki is an educational resource operated by LegelpTech Outsourcing Pvt Ltd, and is editorially independent. This article is general information, not legal or tax advice. If you need a managed shortlist of remote staff, you can compare Zedtreeo as one provider option.

HMRC: company-size threshold changes and off-payroll timing