LPA Rejections and Common Mistakes UK 2026

UK adults making a lasting power of attorney need to know why applications get rejected, because a rejected LPA means delay and sometimes a repeat fee. This guide explains the most common mistakes in England and Wales, drawing on the Office of the Public Guardian's own published guidance, and sets out how to avoid them. It cites the Office of the Public Guardian and the Mental Capacity Act 2005. Kael Tripton is an editorial publisher and not a regulated legal services provider. This article is information only and is not legal advice. Anyone completing an LPA should consult an SRA-authorised solicitor or Citizens Advice if unsure.

Why LPAs get rejected

A lasting power of attorney is rejected when the Office of the Public Guardian finds an error that prevents it being registered. The OPG handles a very large volume of applications, and it reports that around 15 percent of those received contain mistakes (Office of the Public Guardian, gov.uk, accessed June 2026). Because an LPA has no legal effect until it is registered, a rejection at this stage can leave a family without the authority they expected, sometimes at the very moment they need it.

The rules an LPA must satisfy come from the Mental Capacity Act 2005 and the regulations made under it, which set out how the document must be completed, signed, and witnessed (Mental Capacity Act 2005, legislation.gov.uk). Most rejections are not about the substance of who the donor wants to appoint, but about technical errors in how the form was filled in and signed. The good news is that the most common mistakes are well documented and avoidable.

The most common mistakes

The Office of the Public Guardian publishes guidance on the errors it sees most often. Signing the LPA in the wrong order is near the top: the donor must sign before the certificate provider, who must sign before the attorneys (Office of the Public Guardian, gov.uk, accessed June 2026). Getting this sequence wrong is a frequent cause of rejection.

Other common mistakes include using an ineligible certificate provider, such as a family member or one of the attorneys; using correction fluid like Tippex on the form, which makes the document unregisterable; and using the wrong form, for example completing a health and welfare LPA when a property and financial affairs LPA was intended. Contradictory instructions are another recurring problem, such as appointing attorneys to act jointly and severally and then instructing them to make all decisions together, which cannot work as written (Office of the Public Guardian, gov.uk, accessed June 2026). Missing signatures, missing dates, and dates in the wrong sequence round out the list.

How to avoid rejection step by step

1. Use the right form. Check whether the LPA is for property and financial affairs or health and welfare before starting (Office of the Public Guardian, gov.uk, accessed June 2026).
2. Choose a valid certificate provider. Confirm the certificate provider is independent and not in an excluded group such as family or attorneys (Office of the Public Guardian, gov.uk, accessed June 2026).
3. Keep instructions consistent. Make sure how attorneys are appointed matches any instructions about how they must decide (Office of the Public Guardian, gov.uk, accessed June 2026).
4. Sign in the correct order. Donor first, then certificate provider, then attorneys, each with the correct date (Office of the Public Guardian, gov.uk, accessed June 2026).
5. Avoid correction fluid. If a mistake is made, follow the OPG guidance on corrections rather than using Tippex (Office of the Public Guardian, gov.uk, accessed June 2026).
6. Check before sending. Review the whole document, or use the online service which guides completion, before submitting it for registration (Office of the Public Guardian, gov.uk, accessed June 2026).

The cost of getting it wrong

A rejected LPA carries two costs: time and money. When the OPG finds an error, the form is returned for amendment, which adds weeks to a process that already includes a statutory four-week waiting period and usually takes 8 to 10 weeks where there are no mistakes (Office of the Public Guardian, gov.uk, accessed June 2026). In some cases a further fee is needed to register a corrected or fresh document.

The time cost can be the more serious of the two. An LPA is often made precisely because capacity might be lost, and an LPA cannot be made or corrected once the donor has lost capacity. A rejection that is only discovered late, when the donor can no longer sign a new document, can mean the family has to apply for a deputyship instead. Avoiding errors at the outset is therefore about more than saving a fee.

How this connects to wills and probate

Avoiding rejection on an LPA mirrors the care needed with a will. A will can also fail on technical grounds, such as improper witnessing, in the same way that an LPA fails on an ineligible certificate provider. In both documents, the signing and witnessing rules are where most avoidable errors occur.

These documents work as a set across the arc of estate planning, so an error in one can leave a gap. An LPA that is rejected leaves no one with authority during incapacity, just as an invalid will leaves the estate to pass under the intestacy rules after death. Completing the LPA correctly, and following the registration process carefully, keeps the lifetime document ready to work alongside the will and probate.

When to use a solicitor versus doing it yourself

The government online service is designed to reduce errors by guiding the donor through completion, and for a straightforward LPA it is a low-cost way to avoid the common mistakes (Office of the Public Guardian, gov.uk, accessed June 2026). Many people complete a valid LPA this way without professional help.

A solicitor becomes more useful where the donor wants detailed instructions, where there is any doubt about the donor's capacity, or where the family situation makes a later challenge possible. A solicitor can check the document against the rejection reasons before it is submitted, reducing the risk of delay. The Law Society and the Solicitors Regulation Authority maintain registers of authorised solicitors (lawsociety.org.uk and sra.org.uk, accessed June 2026). The decision depends on the complexity of the LPA and the cost of a delay if it were rejected.

FAQ: LPA rejections and common mistakes

How often are LPAs rejected?

The Office of the Public Guardian reports that around 15 percent of LPA applications received contain mistakes (Office of the Public Guardian, gov.uk, accessed June 2026). Not every mistake leads to outright rejection, but errors commonly mean the form is returned for amendment, which delays registration. Because the OPG handles a very large volume of applications, even a small error rate affects many people each year.

What is the single most common mistake?

Signing the LPA in the wrong order is one of the most frequent errors (Office of the Public Guardian, gov.uk, accessed June 2026). The donor must sign before the certificate provider, who must sign before the attorneys. Getting this sequence wrong, or leaving signatures undated, is a leading reason applications are sent back. The online service helps by guiding the signing order.

Can I use correction fluid to fix a mistake on the form?

No. Using correction fluid such as Tippex on an LPA form means the document cannot be registered (Office of the Public Guardian, gov.uk, accessed June 2026). The OPG publishes guidance on how to correct errors properly. Where a paper form has been spoiled, it is often simpler to start a fresh form than to attempt a correction that may not be accepted.

What happens if my LPA is rejected?

A rejected LPA is returned for amendment, which adds weeks to the process and can require a further fee to register a corrected or fresh document (Office of the Public Guardian, gov.uk, accessed June 2026). Because an LPA cannot be made once the donor has lost capacity, a rejection discovered too late can force the family to apply for a deputyship instead.

How can I be sure my LPA will be accepted?

There is no guarantee, but most rejections come from a short list of avoidable errors: wrong form, ineligible certificate provider, contradictory instructions, signing out of order, and correction fluid (Office of the Public Guardian, gov.uk, accessed June 2026). Using the government online service, which guides completion, or having a solicitor check the document, reduces the risk considerably.