You oppose a winding-up petition by filing a notice of intention to appear and evidence in support — usually a witness statement — with the court at least five business days before the hearing, then serving copies on the petitioner. Getting the timing, grounds and paperwork right matters more than how strongly you feel the petition is wrong.
A winding-up petition is a formal court application, most often from HMRC or another creditor, asking the court to put your company into compulsory liquidation under the grounds set out in the Insolvency Act 1986. If you genuinely dispute the debt or believe the petition is being misused, opposing it is a recognised route — but it needs to be done properly and on time, not just objected to informally.
This article sets out when to oppose, which grounds persuade a court, how to file evidence in time, and the costs risk if you oppose and lose.
When opposing a winding-up petition makes sense
Opposing only makes sense where there's a genuine reason to fight the petition, not simply a wish to delay it. Courts and petitioners can usually tell the difference, and a weak opposition can waste time and money for no change in outcome.
Consider opposing where:
- You genuinely dispute the debt — the amount, its validity, or whether it's even owed.
- The company has a counterclaim or set-off that equals or exceeds the debt.
- The petition was served incorrectly, or procedural rules weren't followed.
- The debt has already been paid, or a payment arrangement is in place and being honoured.
- The petition is being used as pressure rather than a genuine step towards liquidation.
Where the debt is simply owed and undisputed, opposing rarely helps. In that situation it's usually more productive to look at paying, negotiating time to pay, or exploring a formal option such as a company voluntary arrangement with a regulated insolvency practitioner. General guidance on the wider process is available from gov.uk's guidance on companies unable to pay their debts, and our guide to what happens after a winding-up petition covers the full timeline if you're still weighing up your options.
Grounds that courts take seriously
Courts don't take opposition at face value — they look for evidence that stands up under scrutiny. The strongest grounds tend to fall into a small number of categories.
Genuine dispute of the debt
If the debt is disputed on substantial grounds — not just asserted as disputed — the court can decline to wind the company up and direct the creditor to pursue the debt through ordinary litigation instead. This is one of the more common and often successful grounds, provided the dispute is real and evidenced.
Cross-claim or set-off
A genuine cross-claim, counterclaim or right of set-off that equals or exceeds the petition debt can also defeat a petition, particularly where the company would otherwise be solvent once the cross-claim is taken into account.
Procedural defects
Petitions must be served, advertised and progressed correctly under the Insolvency Act 1986 and the Insolvency Rules 2016. Errors in service or a failure to follow required procedure can be grounds for opposition, though these are technical points best assessed by a solicitor.
Abuse of process
Where a petition is used to pressure payment of a debt the petitioner knows is disputed, or for an improper purpose, the court can treat this as an abuse of the winding-up process. If your dispute centres on this, our article on defending a petition over a disputed debt looks specifically at how disputed-debt cases are argued.
Filing evidence and a witness statement in time
Opposition has to be backed by evidence filed with the court, not just a verbal objection on the day. The core document is usually a witness statement — a signed statement of facts, sworn to be true, setting out the grounds for opposing and the evidence behind them.
A typical witness statement should cover:
- The background to the debt and why it's disputed, paid, or subject to a cross-claim.
- Supporting documents — invoices, correspondence, contracts, bank statements or payment records.
- Any procedural point being relied on, with dates and references.
- A clear statement of what the company is asking the court to do (dismiss, adjourn, or strike out the petition).
Court rules require a notice of intention to appear to be filed and served at least one business day before the hearing, but evidence in opposition should go in considerably earlier — practice generally expects at least five business days beforehand. Leaving it until the last moment risks the court refusing to admit it, or a costly adjournment. Because the evidential threshold matters, most directors instruct a solicitor to prepare the statement.
Serving your opposition on the petitioner
Filing evidence with the court isn't enough on its own — it must also be served on the petitioner, or their solicitor, so they can respond before the hearing. Service is usually done by post, email if agreed, or through solicitors acting for each side.
Getting service right matters because:
- The court will expect proof that the petitioner received the evidence in good time.
- A petitioner who is genuinely engaging may withdraw or adjourn the petition once they see credible evidence of a dispute.
- Late or defective service can undermine an otherwise strong opposition on the day.
If your evidence and service are in order, some petitions never reach a contested hearing — the petitioner may adjourn or withdraw once the strength of the opposition is clear.
What happens if other creditors support the petition
A winding-up petition can be "supported" by other creditors, who add their own debts to it and may attend the hearing. This can happen even where you've already dealt with the original petitioning creditor.
If this happens:
- The court can allow a supporting creditor to be substituted as petitioner if the original petitioner withdraws or settles.
- Opposing evidence usually needs to address supporting creditors' claims too, not just the original debt.
- It can be a sign that the company's financial position is more widely known among creditors than first thought, which is worth discussing with a specialist.
The petition itself is advertised in The Gazette's insolvency notices, which is how other creditors typically find out and decide whether to support it, so this risk grows the longer a petition remains live and unresolved.
The costs risk of opposing and losing
Opposing isn't risk-free. If it fails, the court can order the company — and in some circumstances a director personally, where conduct has been unreasonable — to pay the petitioner's legal costs as well as its own.
Before opposing, weigh up:
- How strong the evidence really is, not just how strongly the debt feels wrong.
- The likely legal costs of opposing versus the value of the debt itself.
- Whether a negotiated resolution — payment terms, a partial settlement, or a formal insolvency procedure — might resolve things more cheaply and with less uncertainty.
Opposition tends to work best when the grounds are genuinely strong, not as a delaying tactic. If dismissal on other grounds looks more realistic than a full contest, our guide on how to get a winding-up petition dismissed sets out that route.
Frequently asked questions
Can a company oppose a winding-up petition alone, without a solicitor?
In principle a director can file evidence without legal representation, but the evidential and procedural bar is high. Most directors instruct a solicitor, because a poorly drafted witness statement or missed deadline can undermine an otherwise valid opposition.
How much notice do I need to give before the hearing?
A notice of intention to appear must generally be filed and served at least one business day before the hearing, but opposing evidence should go in considerably earlier — typically at least five business days beforehand.
What are my odds of successfully opposing a petition?
There's no reliable general statistic, because outcomes depend on the strength of the evidence and grounds in each case. A genuine, substantial dispute or a clear procedural defect tends to fare better than opposition based simply on the debt being unwelcome.
What's the difference between opposing a petition and getting it dismissed?
Opposing is the process of formally contesting the petition with evidence. Dismissal is one possible outcome of that process, alongside adjournment, withdrawal, or the petition proceeding to a winding-up order.
Can I oppose a petition if I've already missed the deadline for evidence?
It's sometimes possible to seek the court's permission to file evidence late or request a short adjournment, but this isn't guaranteed. Acting early gives far more options than waiting until close to the hearing date.
This article is general information, not legal, financial or insolvency advice, and doesn't take account of your company's specific circumstances.
If you're weighing up whether to oppose a winding-up petition, Harbourfirst can introduce you to a regulated insolvency practitioner or solicitor who can look at your situation directly — start an enquiry.