HMRC, Tax Avoidance, and the Contractor Dilemma
While tax avoidance remains legal, HMRC prefers contractors to conflate it with criminal evasion to deter aggressive strategies. Understanding the difference empowers contractors to make informed, lawful financial decisions.

Setting the Record Straight: What is Tax Avoidance?
In recent years, public discourse around tax and contractors has been clouded by misconceptions and emotion. HMRC openly warns against tax avoidance, yet the very term is steeped in legal legitimacy. To understand what HMRC doesn't always publicise, it's vital to distinguish between avoidance and evasion:
- Tax avoidance: Legally arranging finances to minimise tax, typically by exploiting gaps or ambiguities in the tax code.
- Tax evasion: Deliberately concealing income or information to illegally withhold tax.
The former is not only within the bounds of law, but also a longstanding principle underpinning prudent financial planning.
The Quiet Tactics of HMRC
It is no secret that HMRC dislikes aggressive avoidance schemes, especially those popular among contractors and the self-employed. The department's messaging is carefully curated:
"Tax avoidance, while not illegal in and of itself, is subject to challenge and may result in retrospective charges."
This ambiguous stance serves to sow uncertainty.
"The distinction between avoidance and evasion is clear in law, if cloudy in rhetoric."
Most contractors are not breaking laws; rather, they are maximising their earnings within the structure Parliament has established, often relying on accountants and legal advice.
Contractor Concerns: Mixed Messages
Why the mixed messaging? A few key points shed light:
- Public Perception: Media campaigns and HMRC press releases often muddy the waters, conflating aggressive avoidance with criminality.
- Policy Pressure: Not all avoidance is equal. While Parliament allows certain reliefs, HMRC prefers contractors to interpret the rules conservatively.
- Deterrence Tactics: By playing up the risks, they discourage even legitimate planning that could reduce government revenue.
Examples: Legal, Yet Disapproved
Strategy | Legal? | HMRC's View |
---|---|---|
Claiming allowable expenses | Yes | Acceptable |
Working via PSC outside IR35 | Yes | Heavily scrutinised |
Umbrella Avoidance Schemes | Yes/No | Strongly discouraged |
Just because HMRC dislikes a method does not make it unlawful; it means they may challenge it, and their disapproval does not retroactively criminalise the planner.
Heritage and Stability—Why the System Persists
Britain's tax system is built on the principle that citizens may order their affairs to pay the least tax legally permissible. As Lord Tomlin famously stated in the 1936 case Inland Revenue Commissioners v. Duke of Westminster:
"Every man is entitled if he can to order his affairs so that the tax attaching under the appropriate Acts is less than it otherwise would be."
This principle is part of our legal and economic heritage. Tax avoidance is not a modern invention but a longstanding right, albeit one that must adapt as Parliament refines the law.
Caution Is Key: Striking a Balance
While contractors have every right to reduce their tax bills within the law, caution and transparency are essential:
- Seek professional, up-to-date advice before using complex arrangements
- Maintain clear records to demonstrate compliance
- Avoid anything that requires concealment or misrepresentation
Callout:
Engaging in tax avoidance should never cross into evasion. Know your rights—and the legal boundaries—before implementing tax-saving strategies.
Final Thoughts & Call to Action
HMRC's dislike for avoidance is not the same as illegality. Contractors should not be cowed by obfuscation or aggressive deterrence. Instead, they should champion their right to plan prudently, using the law as their shield.
If you are uncertain about your current arrangements or wish to review your tax position, consult a reputable tax adviser. Understanding the truth behind the rhetoric is the surest way to protect your business—and your peace of mind.