Self Assessment
September 5, 2025
  •  
4 minutes

Tax Planning, Tax Avoidance and Tax Evasion – What’s the difference?

Luke James
Tax Director

Tax is a very complex area, and for business owners it brings both opportunities and risks.  

Tax related conduct and ethics are constantly under the public and political microscope. As recently as this week Deputy Prime Minister, Angela Rayner, has been embroiled in a scandal following underpayment of stamp duty on a flat in Hove, amounting to £40,000.

From these scandals comes an important question.  

How do individuals with complex income and tax positions know what is ethical and legal, and what is not?

We think it’s of utmost importance that both businesses and individuals understand where these lines are, so that they can stay on the right side of the law and avoid reputational damage while still managing their tax position efficiently.

So, let’s break it down. What is the difference between tax planning (that’s what we do!), and tax avoidance and tax evasion?

What is Tax Planning?

Tax Planning is a process through which taxpayers organise their financial affairs in a way that optimises their tax position. In other words, it means using UK law and tax frameworks to reduce your tax liability as much as possible, while still paying your fair share.

The key characteristics of tax planning

  1. Tax planning is fully legal and actively encouraged by legislation through incentives, reliefs and other situational factors.
  2. HMRC is perfectly happy with tax planning when it aligns with the letter (and spirit) of the rules.
  3. It includes things like using ISAs effectively, claiming legitimate business expenses, or contributing to your retirement savings (pensions).

What is Tax Avoidance?

Tax Avoidance is where things start to get grey, both ethically and legally. In simple terms, tax avoidance is about exploiting loopholes or using creative interpretations to “avoid” paying taxes that would otherwise be payable.  

Unlike tax planning, which is underpinned by legislation that directly encourages uptake of reliefs and opportunities, tax avoidance often runs against the intended spirit of the law.  

In other words, it’s perceived as dodgy and unethical, despite being technically legal.  

The key characteristics of tax avoidance

  1. Tax avoidance is technically legal, but that doesn’t mean HMRC lets people get away with it. HMRC may challenge any tax behaviours they see as problematic or shady, especially if it’s aggressive/excessive.
  2. HMRC generally disapproves of tax avoidance and tackles abusive tax arrangements with provisions such as the General Anti-Abuse Rule (GAAR).
  3. If tax arrangements fall within the scope of GAAR, taxpayers could see tax reclaimed, as well as penalties, accelerated payment notices and other sanctions.  
  4. Examples of tax avoidance schemes include offshore structures with no commercial purpose, or disguised remuneration schemes.

In some instances, HMRC discovers the gaps in legislation that have been manipulated by advisers, and they can take corrective action. On occasion, this corrective action can be retrospective meaning that the tax avoidance arrangements can then be legitimately chased by HMRC with corresponding penalties and interests.

What is Tax Evasion?

Tax evasion is much less of a grey area; it is flat out illegal and a criminal offence in the UK. Tax evasion, in simple terms, includes falsifying tax returns, hiding taxable income or misrepresenting facts about your financial or tax position for the purpose of dodging tax.

The key characteristics of tax evasion

  1. Tax evasion is a criminal offence in the UK
  2. HMRC will pursue suspected tax evasion vigorously with fines and criminal prosecution.
  3. Examples of tax evasion include not declaring self-employment income, fabricating invoices or hiding taxable earnings offshore.
  4. The penalties for tax evasion, even if not malicious in intent, are severe, and can include prosecution, large fines and imprisonment.

Tax Planning, Avoidance and Evasion compared

Aspect Tax Planning Tax Avoidance Tax Evasion
Definition Legal optimisation of tax liability Exploiting legal loopholes against the intent of the law Illegal concealment or misrepresentation to evade tax
Legality Fully legal, subject to specific rules Technically legal, but discouraged and scrutinised by HMRC Illegal
HMRC’s View Fully supported and encouraged, if compliant Challenged via anti-avoidance rules (e.g. GAAR) Directly targeted by HMRC and criminal enforcement
Examples Pensions, ISAs, claiming business expenses, gifting assets Artificial offshore structures, disguised schemes Undeclared income, fake invoices
Consequences Legitimate and valuable tax savings Repayment, penalties, reputational damage Fines, prosecution, imprisonment
Ethical Standing Responsible and encouraged by the legal, financial and accounting industries Legally shaky and often viewed as exploitative and highly risky Universally condemned

So, what should you do if you want to pay less tax?

If you are looking at your tax bills, whether as an individual or a business, and wishing the bill were lower, then you’re not alone. But there is a fine, but also clear line between responsible and proactive tax planning, and avoidance or evasion.

Tax planning lets you play by the rules, keeping more of your income or profits in a responsible and compliant way. There are also lots (and I mean lots) of potential tax planning opportunities that apply to businesses and individuals of all shapes and sizes, all encouraged, and all designed to ensure you only pay your fair share.

If you’d like to understand more about what legitimate tax strategies may apply to you, or if you want to review your current set up to ensure it is solid, please feel free to get in touch!

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