If you've defaulted on HMRC Time to Pay, the arrangement is not automatically dead — but HMRC can withdraw it quickly, and the moment you miss a payment, the debt usually becomes due in full again. What happens next depends on how fast you contact HMRC and whether the default is a one-off or a pattern.
A Time to Pay (TTP) arrangement is an informal agreement letting a company pay tax arrears in instalments instead of all at once. It relies on trust: HMRC agrees to hold off enforcement action as long as every instalment lands on time. One missed payment breaks that trust, even if the reason was genuine.
This article explains what actually happens when a TTP breaks down, whether it can be reinstated, and what your realistic options are if HMRC won't reinstate it.
What happens when you miss a TTP instalment
HMRC's systems flag a missed instalment automatically, usually within days. You will typically get a letter or an automated call warning that the arrangement is at risk of default.
In practice, HMRC's approach depends on the pattern:
- One missed payment, paid a few days late: often tolerated if you contact HMRC before or immediately after the due date and explain why.
- One missed payment, no contact: more likely to trigger a formal default notice.
- Two or more missed payments: HMRC will usually treat the arrangement as broken and move towards cancelling it.
The key point is that a defaulted HMRC Time to Pay arrangement is reviewed case by case — silence is what turns a minor slip into a full cancellation. HMRC's own guidance on what to do if you're finding it hard to pay your tax bill makes clear that contact is what keeps options open.
Can a defaulted HMRC Time to Pay arrangement be reinstated?
Sometimes, yes. HMRC has discretion to reinstate or renegotiate a Time to Pay plan if you contact them promptly, explain the reason for the missed instalment, and can show the rest of the plan is still affordable.
Reinstatement is more likely when:
- You contact HMRC before they contact you.
- The default is a single, explainable event (a late customer payment, a banking error).
- You can pay the missed instalment quickly, or propose a revised schedule.
- Your other tax filings and payments (VAT, PAYE, corporation tax) are up to date.
Reinstatement is much less likely if this is a second or third arrangement on the same debt, or if new tax liabilities have built up since the plan started — HMRC generally expects a company to stay current on new tax while paying off old arrears.
How quickly HMRC can demand the full balance
Once HMRC treats the arrangement as broken, the outstanding balance can become payable immediately, not just the missed instalment. There's no fixed statutory grace period for TTP defaults — timing is a matter of HMRC's internal process, not a legal deadline.
In practice, the sequence is often:
- Missed payment flagged, warning letter or call issued.
- Short window (often a matter of days) to make contact or catch up.
- If unresolved, the arrangement is formally cancelled and the full balance falls due.
- Standard debt collection activity resumes as if no arrangement existed.
This is why speed matters more than the size of the missed payment. A director who calls HMRC the same day usually has more room to negotiate than one who waits for a follow-up letter. HMRC sets out the general escalation path in its guidance on what happens if you don't pay your tax bill.
Enforcement risk after a broken arrangement
Once a Time to Pay arrangement is cancelled, HMRC can use the same enforcement tools it would use against any unpaid tax debt. These include:
- Debt collection agency referral or direct HMRC debt management contact.
- Distraint/taking control of goods — HMRC enforcement officers seizing company assets to sell.
- County Court judgments for the debt.
- A statutory demand or winding-up petition against the company, if the arrears are significant and unpaid.
A winding-up petition is the most serious step: it asks the court to compulsorily liquidate the company, under the winding-up provisions of the Insolvency Act 1986. Once advertised in The Gazette's insolvency notices, it can effectively freeze the company's bank account. It's a formal legal process, not something HMRC does lightly, but a broken TTP with no follow-up contact increases the risk considerably.
Renegotiating vs considering formal options
If HMRC won't reinstate the original plan, you generally have two directions:
- Renegotiate: propose a new, more realistic instalment schedule, often with a larger upfront payment to rebuild trust.
- Consider formal insolvency options: if the company genuinely can't afford any repayment plan, tools such as a Company Voluntary Arrangement or, where the business isn't viable, liquidation may be more appropriate than repeatedly defaulting.
Repeatedly defaulting and renegotiating can itself become a red flag to HMRC, making a formal option more likely to be recommended by a specialist. If you're still weighing up whether TTP is the right route at all, it may help to first understand the full range of options when a company owes HMRC and can't pay.
Frequently asked questions
Does one missed payment automatically cancel my Time to Pay arrangement?
Not always. A single missed instalment, quickly explained and rectified, is sometimes tolerated. But HMRC has discretion, and repeated or unexplained missed payments are far more likely to lead to cancellation.
Is there a grace period for a missed HMRC instalment?
There's no fixed legal grace period. In practice HMRC often allows a short window to make contact and catch up, but this depends entirely on the circumstances and your history with them, not a guaranteed number of days.
Who do I contact if I've missed a Time to Pay payment?
Contact HMRC's Debt Management team on the number shown on your TTP correspondence, or the general Business Payment Support Service, as soon as possible — ideally before the missed payment is even due, if you can see it coming.
Can HMRC refuse to set up a second Time to Pay arrangement?
Yes. There's no automatic right to a Time to Pay arrangement, and HMRC is generally more cautious after a previous default. If a second request is refused, it's worth understanding what happens when HMRC refuses a Time to Pay request.
What's the difference between a defaulted TTP and normal HMRC enforcement?
A defaulted TTP simply means the informal payment agreement has ended. From that point, HMRC treats the debt exactly as it would any other unpaid tax, following its usual HMRC debt enforcement process, which can move through several escalating stages.
This article is general information, not legal, financial or insolvency advice, and every company's position with HMRC is different.
If your Time to Pay arrangement has broken down and you'd like to talk through what's realistic for your company, Harbourfirst can introduce you to a regulated insolvency specialist — start an enquiry.