A penalty notice from HMRC can feel final, but it is often the start of a negotiation. In the right case, HMRC has the power to suspend a penalty for a set period and cancel it altogether if you meet agreed conditions. For a business or individual facing a large bill, that can be the difference between a damaging payment and no payment at all.
Suspension is not automatic and HMRC rarely volunteers it. The conditions it attaches, and how well they are drafted, will decide whether the penalty disappears or comes back with interest. This guide explains how suspension works in the UK, when it is available, and how to negotiate terms that protect your position. It also explains how our HMRC tax dispute solicitors and barristers can help.
What Does Suspension of a Penalty Mean?
When HMRC suspends a penalty, it does not collect the amount at that point. It sets a suspension period, normally up to two years, and attaches conditions that you must meet. If you comply, the penalty is cancelled at the end of the period. If you breach the conditions, or are later penalised for a further careless error during that period, the suspended penalty becomes payable.
Suspension is a form of probation. HMRC accepts that the penalty is deserved but gives you the chance to put your affairs in order so that the mistake is not repeated. The statutory power sits in Schedule 24 to the Finance Act 2007, which governs penalties for errors in tax returns and documents.
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When Can HMRC Suspend a Penalty?
The power is narrower than many taxpayers expect. It applies to penalties for careless inaccuracies and is not available where HMRC says the error was deliberate, with or without concealment. HMRC may suspend all or part of the penalty, but only if complying with a condition would help you avoid further penalties. The suspension period cannot exceed two years, and the conditions must be set out in writing and be realistic for you to meet.
The starting point is therefore how HMRC has categorised your behaviour. That decision affects the size of the penalty and whether suspension is on the table at all. Penalties for careless errors can reach 30% of the potential lost revenue, while deliberate errors attract much higher percentages. If HMRC has labelled your error as deliberate and you say it was careless, or simply a genuine mistake, winning that argument can open the door to suspension. Our guide to HMRC penalties explains the behaviour categories in more detail.
Why Suspension Is Worth Negotiating
Even if the penalty is not cancelled outright, suspension has real commercial value. No payment is due during the suspension period, which matters if the business is already under cash flow pressure. If the conditions are met, the penalty is cancelled entirely, so there is a realistic route to paying nothing. A penalty that ends in cancellation is also easier to explain to banks, investors and professional bodies than one that has been paid. Suspension is often one part of a wider settlement of an enquiry, alongside agreed tax, interest and reductions, which gives it further value as a bargaining point.
Step One: Check the Penalty Before You Negotiate Terms
Negotiating suspension of a penalty that is wrong or overstated means starting from a weaker position. Before we discuss terms with HMRC, we examine the penalty from every angle.
The first question is the behaviour category. Was the inaccuracy careless, deliberate, or deliberate and concealed? HMRC bears the burden of showing deliberate conduct. We then look at the disclosure reductions. HMRC reduces penalties according to the quality of your disclosure, namely telling HMRC about the error, helping it quantify the problem and giving it access to records. Reductions are larger for unprompted disclosures, and missed reductions are one of the most common errors we see.
We also check the potential lost revenue calculation, because the penalty is a percentage of that figure and any mistake in HMRC’s computation flows directly into the penalty. We consider whether you had a reasonable excuse, which can cancel some penalties entirely, and whether special circumstances justify a special reduction. Finally, we check the appeal deadline. In most cases you have 30 days from the penalty notice to appeal, and our guide to late appeals to the Tax Tribunal explains what happens if that date has passed.
You can read more about the appeal process on the government’s tax appeals page, or see how our team approaches HMRC tax penalty appeals.
Step Two: Negotiate Conditions That Work for You
HMRC drafts conditions to reduce the risk of repeat errors. Left to its own devices, it may propose conditions that are vague, onerous or impossible to meet. A suspension that you are likely to breach is of little value, so the drafting matters as much as the principle.
Well-drafted conditions are normally specific, measurable, achievable, realistic and time-limited. A typical condition might require returns to be filed by an agreed internal deadline each quarter, or introduce a documented review step before every VAT return is submitted. Others might require a suitably qualified adviser or bookkeeper to reconcile records each month, or training for finance staff on a particular area of tax.
When we negotiate conditions, our first aim is to link each one to the actual cause of the error. If the problem was a misunderstanding of the rules on one type of expense, a condition requiring a wholesale restructure of your finance team is disproportionate. We also make sure compliance is provable, so that each condition produces a record, such as a sign-off sheet, an email or a report, that you can show HMRC. Deadlines need to be realistic, because short and inflexible deadlines are an easy way to trigger a breach.
We also consider the length of the suspension period. A shorter period gets you to cancellation sooner, provided the conditions are credible. And we seek suspension of the whole penalty rather than part of it. HMRC often offers partial suspension first, and we push for full suspension where the facts justify it.
Step Three: Present Your Case in Writing
HMRC officers have discretion, and a well-evidenced, constructive proposal is far more persuasive than a general plea for leniency. A strong submission sets out a short factual account of how the error arose and what has been done to correct it, supported by evidence of the changes already made to your processes. It then proposes a set of conditions in precise terms and asks clearly for the penalty to be suspended in full, with reference to the statutory power. Crucially, it explains why suspension would help you avoid further penalties, because that is the legal test.
Presentation matters too. Communications from a solicitor or barrister attract legal professional privilege and are treated differently from correspondence sent by an accountant. This matters if the dispute develops into a wider HMRC tax investigation or involves a voluntary disclosure, because anything you say can shape how HMRC views the risk of the case.
The Risks of Suspended Penalties
Suspension is valuable, but it carries risks that should be understood before you agree to it. If a condition is not met, or you incur another penalty for a careless inaccuracy during the suspension period, the suspended amount can become payable. Conditions can also be more burdensome than the penalty itself, and a small penalty is not worth a costly compliance regime. We weigh the value of the penalty against the cost of the conditions before advising you to accept.
Care is also needed in any contact with HMRC. Statements made in interviews or informal calls can be used to support a higher behaviour category, and our guidance on HMRC interviews explains why preparation matters. If your case involves allegations of evasion, the analysis changes entirely, and our guide to Code of Practice 9 investigations explains why.
What If HMRC Refuses to Suspend the Penalty?
A refusal is not the end of the road. You can ask for an independent HMRC internal review, where an officer who was not involved in the original decision looks at the case again. If the review is unsuccessful, you may appeal to the independent tribunal. Our team regularly acts in First-tier Tax Tribunal proceedings, and many disputes settle before a hearing once HMRC sees that the taxpayer is properly advised and prepared to litigate. You can find out more about our general approach to HMRC tax appeals.
Suspension, Time to Pay and Enforcement
A penalty rarely arrives alone. It often comes with unpaid tax, interest and sometimes a threat of enforcement. HMRC can agree a Time to Pay arrangement for tax debts, and details of how to ask are on the government’s difficulties paying HMRC page. These arrangements are separate from suspension of a penalty, but they are most effective when negotiated together as a single package.
If debts are left unresolved, HMRC may issue a statutory demand or present a winding-up petition against a company. Our HMRC enforcement defence team can step in at that stage. Directors who have received a petition should read our guide on responding to an HMRC winding-up petition and our page on obtaining an adjournment to allow time to pay. For wider context, see our overview of HMRC enforcement action.
When Bad Advice Caused the Penalty
Many penalties arise because a tax adviser or accountant made a mistake or failed to warn a client of the risk. If that is your situation, you may have a claim against the adviser in addition to your dispute with HMRC. Our colleagues in the professional negligence team explain the position on negligent tax advisers and negligent accountants. We can coordinate both strands so that your position against HMRC is not undermined by the claim against your adviser, and the reverse.
How LEXLAW Can Help
LEXLAW is a litigation-only practice of dual-qualified solicitors and barristers, operating from chambers in the Middle Temple, next to the Royal Courts of Justice. Our tax disputes team includes lawyers with experience at HMRC and in major professional services firms, which means we understand how penalty decisions are made and what persuades an officer to exercise discretion.
When you instruct us on a penalty dispute, we review the penalty notice, the computation and the underlying correspondence, then advise on the correct behaviour category and any missed reductions. We assess whether suspension, cancellation or reduction is the best realistic outcome, draft the submissions and propose conditions designed to be achievable. We negotiate directly with HMRC so that you do not have to, and if HMRC will not move, we pursue an internal review or tribunal appeal on your behalf.
Our first meeting is a fixed-fee advice conference with both a solicitor and a barrister, so you leave with a clear view of your prospects, risks and costs. See our costs page for details. Please note that we do not undertake legal aid work and are normally instructed on disputes of substantial value.



