2026 HMRC Penalty Rules: How New Late-Payment Charges Can Turn Arrears into Serious Company Debts 

A New Penalty Regime That Directors Cannot Afford to Overlook 

HMRC’s penalty framework has changed significantly in recent years, and the 2026 rules bring sharper teeth to late-payment enforcement. What might once have been manageable arrears can now escalate into serious company debt far more quickly than many directors realise. 

Understanding how the new charges work, and where the escalation points are, is essential for any director trying to protect their business from compounding liabilities. 

How the New Late-Payment Penalty System Works 

The new regime moves away from a single fixed penalty and introduces a staged approach. Late payment now triggers charges at different points depending on how long the debt remains outstanding. 

For VAT, the key stages under the current rules are broadly as follows: 

•  Up to 15 days overdue: no penalty applies if the debt is paid or a Time to Pay arrangement is agreed 

•  16 to 30 days overdue: a penalty of 2% of the outstanding amount 

•  31 days or more overdue: a penalty of 4%, with a further daily rate applied until the debt is cleared 

Interest also accrues on unpaid tax from the date it becomes due, and HMRC’s late-payment interest rate is tied to the Bank of England base rate plus a fixed margin. In a higher interest rate environment, this adds up quickly. 

The Real Risk: Small Arrears Becoming Large Debts 

The staged penalty structure might sound manageable when you read it in isolation. The problem is that many directors only become aware of the position when the debt has already moved through the early stages. A return filed late, a payment missed during a difficult month, or a dispute with HMRC that is not resolved promptly can all push liabilities into the higher penalty brackets before the business has had a proper chance to respond. 

Add interest to the principal, layer on the percentage penalties, and include any surcharges from earlier periods, and the total liability can be considerably higher than the original tax owed. 

PAYE Late-Payment Penalties: A Separate Risk 

The new penalty framework does not only apply to VAT. PAYE late-payment penalties have also been tightened, and directors who are responsible for payroll need to be alert to the cumulative effect of recurring late payments. 

HMRC applies a percentage-based penalty for late PAYE payments, and the rate increases with the number of defaults in a given tax year. A business that is regularly a few days late with payroll tax could find itself facing a penalty charge that bears no resemblance to the original shortfall. 

Reasonable Excuse: A Defence Worth Understanding

HMRC does allow for a reasonable excuse defence in certain circumstances. If there is a genuine reason why a payment was late and the business acted promptly once the issue was identified, it is possible to challenge a penalty. 

However, HMRC applies this test narrowly. Cash flow difficulties, on their own, are not generally accepted as a reasonable excuse. The defence tends to carry more weight where there was a genuine unexpected event outside the business’s control, the business has a strong prior compliance record, and the delay was resolved as soon as reasonably possible. 

Getting the grounds right matters. A poorly prepared challenge can be dismissed, leaving the penalty in place and the business no better off. 

Time to Pay: The Option Many Directors MissTime to Pay: The Option Many Directors Miss 

One of the most important tools available to directors facing late-payment penalties is the Time to Pay arrangement. HMRC has the discretion to agree a structured repayment plan, and where this is in place, further penalty accumulation can be paused. 

The key is to engage early, before the debt escalates and before enforcement action begins. HMRC tends to look more favourably on businesses that approach it proactively rather than those that wait until a winding-up petition is already being considered. 

What Directors Should Be Doing Now 

If your business has outstanding VAT or PAYE arrears, or has been issued with a penalty notice, there are some immediate priorities: 

1.    Review the penalty notice carefully to confirm the figures are correct 

2.    Check whether a reasonable excuse defence is available for any specific period 

3.    Assess whether a Time to Pay arrangement would help manage the outstanding debt 

4.    Take specialist advice before responding to HMRC, particularly if the amounts are significant 

5.    Consider whether any connected investigations or enforcement actions are also in play 

Why This Matters for Directors Personally 

It is easy to think of late-payment penalties as a company issue. But directors need to remember that HMRC has powers to hold individuals personally liable in certain circumstances, particularly where deliberate behaviour is alleged or where insolvency becomes a factor. Personal Liability Notices are not uncommon in cases involving persistent late payment or failure to engage. 

The new penalty rules make early action even more important. Getting on top of arrears quickly and with the right advice is almost always cheaper than allowing the charges to compound. 

For specialist advice, speak to one of our advisers. 

FAQs 

Q1: When do the new late-payment penalties kick in? 

Under the current rules, penalties begin to apply from 16 days after the due date for VAT. The rate increases at day 31, with daily interest running until the debt is cleared. 

Q2: Can I appeal a late-payment penalty? 

Yes. You can appeal on the basis of reasonable excuse or if you believe the penalty has been incorrectly calculated. Specialist advice is recommended before submitting any appeal. 

Q3: Will HMRC agree a Time to Pay arrangement? 

In many cases, yes. HMRC has the discretion to accept structured repayment plans, particularly where the business engages proactively and has a credible repayment proposal. 

Q4: Can directors be held personally liable for late-payment penalties? 

In certain circumstances, yes. Where deliberate behaviour is alleged or insolvency is involved, HMRC can pursue directors individually through Personal Liability Notices.