Caveat Probate UK (2026): How to Stop a Grant of Probate, PA8 Form & What Happens Next

A probate caveat is a formal notice entered at the Probate Registry that prevents the Registry from issuing a Grant of Probate (or Letters of Administration) without first notifying the person who entered the caveat. Once a caveat is in place, the executor cannot obtain the Grant — meaning they cannot deal with the estate — until the caveat is removed, withdrawn, or the parties reach agreement. A caveat does not decide who inherits; it simply halts probate while the dispute is investigated. It is the first protective step for anyone who wants to challenge a will, question the executor's authority, or investigate whether the will is valid.

Anyone with a legitimate interest in the estate can enter a caveat. This includes: people who believe the will is invalid (lacking testamentary capacity, undue influence, improper execution); beneficiaries under a previous will who believe the most recent will was fraudulently obtained; people with an Inheritance Act 1975 claim; people who question whether the applicant is entitled to apply (e.g., a disputed administrator appointment). There is no requirement to demonstrate the claim is strong at the caveat stage — the bar is low. However, a caveat entered without a genuine basis can expose the caveator to a costs order if litigation follows.

Enter a caveat by completing HMCTS form PA8 (available on the GOV.UK website) and sending it to the Principal Registry of the Family Division or any District Probate Registry in England and Wales. The current fee is £3. You can apply by post, in person at a probate registry, or online via the GOV.UK probate service. The caveat lasts for 6 months from the date it is entered. It must be renewed before it lapses — renewal requires a further PA8 and fee. There is no limit on the number of times a caveat can be renewed, but once a 'warning off' is issued, the caveat cannot be renewed without the court's leave.

A standing search (form PA1S) is a less aggressive alternative to a caveat. It does not prevent a Grant being issued — it simply causes the Probate Registry to notify you if a Grant is issued in a named estate within 12 months (or 6 months after registration if the Grant has already been issued). A standing search is the right tool if you want to monitor an estate without blocking it — for example, if you are an Inheritance Act claimant who wants to be notified before the estate is distributed. A caveat is the right tool if you need to stop the Grant being issued immediately. Both can be used together.

After a caveat is entered, the executor (or other applicant) can serve a formal 'warning' on the caveator using HMCTS form PA9. The warning demands that the caveator file an 'appearance' (form PA10) within 14 days, explaining why they are entitled to be heard. If the caveator files an appearance, the caveat becomes 'consolidated' — it can no longer be removed by the caveator alone and the matter must proceed to court (a probate action in the Chancery Division). If the caveator does not respond to the warning, the caveat lapses and the Grant can be issued. Once an appearance is filed, the parties are in contested probate proceedings — both sides will need legal advice and costs can be significant.

A probate caveat lasts for 6 months from the date it is entered. Before it lapses, the caveator can renew it by sending another PA8 form and £3 fee to the Probate Registry. Renewal must happen before expiry — if the caveat lapses, the executor can apply for the Grant immediately. There is no statutory limit on the number of renewals, but if the executor has issued a warning and the caveator filed an appearance, the caveat enters 'consolidated' status and cannot be renewed without the court's permission. Caveators should not use renewals as a delaying tactic without genuine grounds — doing so can result in adverse costs orders.

Enter a caveat when: you have genuine grounds to believe the will is invalid (capacity, undue influence, improper execution); you are a beneficiary under an earlier will and the later will appears suspicious; you need time to investigate whether a claim is available; you want to prevent assets being distributed before you can bring an Inheritance Act claim. Do not enter a caveat: purely to delay and frustrate the administration with no legitimate basis; as a negotiating tactic without genuine grounds (courts take a dim view and award costs against caveators acting in bad faith); if the estate is urgent (e.g., care home fees accruing, assets deteriorating). Always seek legal advice before entering a caveat — contested probate is expensive and emotionally draining.