SIGNALInfrastructure Software·Jun 19, 2026, 8:00 AMSignal65Short term

Use of HMRC's taxing IR35 status tool drops 71% in two years

Source: The Register

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Use of HMRC's taxing IR35 status tool drops 71% in two years

Data suggests firms are turning away from CEST as critics say it fails to reflect recent court rulings

Why this matters
Why now

The increased scrutiny and legal challenges around IR35 are compelling firms to seek alternatives to HMRC's tool, especially as recent court rulings have exposed its shortcomings.

Why it’s important

This trend highlights growing dissatisfaction with government digital tools for tax compliance and indicates a potential shift towards greater independent contractor autonomy or more complex engagement models.

What changes

Companies are actively disengaging from a specific government-provided compliance tool, suggesting a move towards more bespoke or legally robust solutions for contractor status determination.

Winners
  • · Independent contractors/freelancers
  • · Legal and tax advisory firms
  • · Compliance software vendors
Losers
  • · HMRC and its IR35 tool (CEST)
  • · Companies relying solely on HMRC guidance
Second-order effects
Direct

Firms will invest more in external legal/tax advice or internal expertise to determine IR35 status.

Second

There may be an increase in legal disputes over IR35 status as firms and contractors adopt more varied assessment methodologies.

Third

HMRC might be forced to revise or replace its IR35 tool and guidance to rebuild trust and effectiveness, or face continued non-compliance.

Editorial confidence: 90 / 100 · Structural impact: 40 / 100
Original report

This signal links to a primary source. Continuum Brief monitors and indexes it as part of the live intelligence stream — we do not republish source content.

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