When Does an LPA Come Into Force UK (2026)?

A Property and Financial Affairs LPA can be used by the attorney as soon as it has been registered by the Office of the Public Guardian (OPG). Registration — not execution — is the trigger. There is no requirement that the donor has lost mental capacity: the attorney can act on routine financial matters (managing bank accounts, paying bills, managing investments) while the donor is still fully mentally capable, if the donor chooses to allow this. The donor may even be present and approving each transaction. This is one of the main practical advantages of a registered financial LPA: the donor can delegate administrative tasks to a trusted attorney without waiting for incapacity. However, the donor can restrict the LPA by inserting a condition in the 'Instructions' section specifying that the LPA may only be used if the donor lacks capacity — this mirrors the old Enduring Power of Attorney model. Without such a restriction, the attorney's authority is live from the date of registration and does not depend on any assessment of the donor's mental state.

A Health and Welfare LPA can only be used when the donor lacks capacity to make the specific health or welfare decision in question — this is a statutory requirement under section 11(7)(a) of the Mental Capacity Act 2005. The attorney has no authority to make health or welfare decisions on behalf of a donor who has capacity to make those decisions themselves, even if the LPA is registered. Capacity is decision-specific and time-specific: the donor may lack capacity for some decisions (e.g. complex medical treatment) but retain capacity for others (e.g. what to eat or wear). The attorney must apply the MCA 2005 two-stage capacity test before acting: (1) Is there an impairment of, or disturbance in the functioning of, the person's mind or brain? (2) Does that impairment mean the person cannot understand, retain, use/weigh, or communicate the relevant information? If both questions are answered yes, the donor lacks capacity for that decision and the attorney can act. Healthcare professionals and care homes will not act on an attorney's instructions for a Health and Welfare LPA unless satisfied that the donor lacks capacity — they are required by law to assess this.

No — an LPA must be registered with the OPG before it can be used at all, regardless of the donor's mental capacity. An unregistered LPA has no legal effect. Registration can take 4–20 weeks from submission (the OPG has a statutory 4-week notification period during which named persons can object, plus processing time). Critically, registration must happen while the donor still has the mental capacity to instruct registration — once capacity is lost before registration, the application may be invalid. This is the most common practical mistake: an LPA drafted but never registered becomes worthless when the donor loses capacity. The correct approach is to register the LPA soon after it is made, even if the attorney does not intend to use it immediately. A registered LPA sits 'on the shelf' until needed; registration does not force the attorney to act and does not affect the donor's own ability to make decisions.

Yes — a registered Property and Financial Affairs LPA gives the attorney authority to deal with all of the donor's property and financial affairs, including selling the donor's home, unless the LPA specifically restricts this. Selling a property requires the attorney to use the LPA certificate (the registered LPA document) in the conveyancing process; the buyer's solicitor will require a certified copy. If the property is the donor's main home and the donor lacks mental capacity at the time of the sale, the Court of Protection's approval is not required — the LPA authority is sufficient — unless there are allegations of misuse or the donor is a local authority-funded care home resident (in which case additional rules apply). The attorney must act in the donor's best interests and cannot use the sale proceeds for the attorney's own benefit. If the donor has capacity, they can still sell the property themselves; the LPA and the donor's own authority operate concurrently, and the donor's authority takes precedence over the attorney's in all matters while capacity exists.

Registration is the process by which the OPG formally records and stamps the LPA, giving it legal authority. For a financial LPA, 'taking effect' (being usable) happens on registration — the two events coincide unless the donor has added a capacity restriction. For a health and welfare LPA, registration is a separate prerequisite to the LPA having any force at all, but the LPA 'takes effect' (is usable) only when the donor lacks the specific capacity — which may be months or years after registration. In summary: registered means legally valid and on the OPG register; taking effect means the attorney can actually use it. For a financial LPA without restrictions, the two are simultaneous. For a financial LPA with a capacity restriction, registered ≠ effective (must wait for incapacity). For a health and welfare LPA, registered ≠ effective (must wait for incapacity on the specific decision).

Using a financial LPA before registration — or using a health and welfare LPA when the donor still has capacity for the relevant decision — is unlawful and constitutes an abuse of the LPA. Third parties (banks, care homes, medical professionals) who rely on an unregistered LPA may themselves be liable. An attorney who uses a health and welfare LPA while the donor retains capacity for the decision is acting outside their authority — the donor's decision governs, and the attorney's action may constitute an assault (for medical decisions) or interfere with the donor's autonomy. The OPG can investigate attorneys who misuse an LPA and can apply to the Court of Protection to revoke the LPA and, in serious cases, prosecute the attorney for financial abuse of a vulnerable person. If a financial institution is presented with what appears to be an LPA but it is unregistered, they must refuse to act on it.

Yes — in the 'Instructions' section of the financial LPA form, the donor can add a condition specifying that the attorney may only use the LPA when the donor lacks mental capacity to make the relevant financial decision. This restriction converts the financial LPA into a capacity-triggered instrument, like a health and welfare LPA. The advantage of this restriction is that it limits the risk of premature or unwanted use of the LPA while the donor is capable; the disadvantage is that it introduces the need for capacity assessments before the attorney can act, which can cause delay and administrative difficulty in urgent situations. The restriction must be clearly worded; the OPG will accept any reasonable condition. A commonly used formulation is: 'I, [name], intend this LPA to only be used if I lack the mental capacity, at that time, to manage my own property and financial affairs.' Adding this instruction does not affect registration but it does affect how third parties (banks, solicitors) must verify capacity before acting on the attorney's instructions.