There is a category error at the centre of most estate planning, and it costs families months. The error is treating authority as though it were access. A will names an executor. A grant of probate confirms that appointment to third parties. A lasting power of attorney gives someone the right to act while you are alive. All three are instruments of authority. None of them is an instrument of access.
Authority answers the question: is this person allowed to act? Access answers a different one: can this person actually do the thing? The first is a legal question, settled by documents. The second is an operational question, settled by information. Families invest heavily in the first and almost nothing in the second, then discover the gap at the worst possible moment.
What the gap looks like in practice
An executor with a sealed grant of probate walks into a bank. The grant is unimpeachable. The bank accepts it immediately. Then the conversation turns to which accounts existed, and the executor does not know. There is no central register of bank accounts in the UK that an executor can search. There is no lookup that returns every policy a person held. The executor is fully authorised and completely stuck.
The same pattern repeats across the estate. An attorney under a registered LPA has clear authority over financial affairs, and no idea which utility supplies the house, which broker holds the ISA, or whether the buildings insurance renews next month. A spouse has an unarguable claim to a joint account and cannot say what the direct debits are paying for.
In each case the legal work is finished and the practical work has not started, because the practical work was never someone's job.
Why the gap is invisible until it matters
Access problems hide behind living people. While you are alive and well, you are the index. You remember which bank, which broker, which drawer. Nobody notices that the household's operating knowledge lives in one head, because that head is available on request.
Death and incapacity do the same thing to a household: they remove the index and leave the data. Everything still exists. The accounts are still open, the policies still in force, the documents still filed somewhere sensible. What has gone is the only working map of where any of it is.
This is why the failure is so consistent across wealth levels. It is not a function of how much there is. It is a function of how much of the arrangement was held informally, and informality does not correlate with modest means. Complex estates are frequently the worst-documented, because complexity was managed by an unusually capable person who never needed to write it down.
Access is a list, not a vault
The instinct, once the problem is named, is to reach for a vault: somewhere to put the passwords. That instinct solves the smaller half of the problem and creates a new one. Credentials expire, rotate, and — for most institutions — are not what an executor needs anyway. A bank will not let an executor log in as the deceased. It will let them open a bereavement case against a named account at a named institution.
What closes the gap is duller than a vault and far more durable: a written list of what exists and where it is held. Which institutions. Which reference numbers. Which adviser, if any. Where the paper lives. Who else already knows. An executor holding that list can do the job with the authority they already have. An executor without it is running an investigation before they can begin the administration.
The document that grants authority and the document that enables action are almost never the same document.
The practical test
There is a simple way to find out whether your household has closed the gap. Name the person who would act if you could not — the executor, the attorney, the spouse. Then ask what they would do in their first hour, and follow the answer literally.
If the answer begins with looking through your things, the gap is open. If it begins with a specific document in a specific place that tells them what exists, the gap is closed. Everything else — the will, the LPA, the trust — is authority, and authority was never the part that was going to fail.