The two phrases appear side by side on almost every onboarding form, and they are routinely answered as though they were one question asked twice. They are not. They address different periods, call for different evidence and are used by the institution for different purposes, and an answer that satisfies one of them frequently leaves the other entirely unaddressed.
The distinction is simple to state. Source of wealth explains how the client came to have money at all, across a career or across generations. Source of funds explains where the specific money arriving in this account has come from, and when. A client who answers both with the name of a company has answered neither in the form the reviewer requires.
Source of wealth is a history
Source of wealth is a narrative covering the whole of the client’s accumulation: the businesses built and sold, the professional income earned, the inheritances received, the investments held and realised. It is expected to account for the order of magnitude of the client’s total position, and it is assessed for coherence rather than for precision. A reviewer reading it is asking whether the wealth described is consistent with the life described.
It is evidenced accordingly: transaction documents from a company sale, audited accounts, tax filings, probate or succession documents, contracts of employment for senior roles held over long periods. What it is not is a bank statement, because a statement shows a balance at a moment and says nothing about how the balance arose. The most common deficiency in a source of wealth answer is that it explains the most recent event and leaves the preceding twenty years unaccounted for.
Source of wealth answers how the client became wealthy; source of funds answers where this particular money has just come from, and the two are evidenced by different documents.
Source of funds is a transaction
Source of funds is narrower and more concrete. It concerns the money that will actually pass into the account: the proceeds of a named disposal, a distribution from a named entity, a drawdown from a named facility. It is answered with the specific documents that evidence that movement — the sale agreement and completion statement, the dividend resolution, the loan agreement — and with a clear line from the origin of the money to the account receiving it.
Because it is transaction-specific, it recurs. A client provides a source of wealth narrative once and refreshes it when circumstances change materially; a client provides source of funds information whenever a significant credit arrives that the account’s established pattern does not explain. Institutions that appear to be asking the same question repeatedly are generally not: they are asking the second question about a new movement, having already been satisfied on the first.
Why conflating them delays a file
When a client answers the source of wealth question with the details of a single recent transaction, the reviewer has a fully evidenced explanation for one payment and no explanation for the client’s overall position. The file cannot be concluded, because the question of whether the client’s wealth is consistent with the client’s profile has not been reached. The request that follows appears to the client to be a repetition, which is why the correspondence tends to lengthen rather than resolve.
The reverse error produces the same result. A comprehensive life history, well documented, does not tell the institution where the funds arriving next week originated, and a reviewer cannot infer it. Preparing both answers separately, with their own evidence, before the first request is made is the single most effective way to compress an onboarding timeline, and it is work that can be done at any point, including long before an institution has been approached.
This note is general in application and does not constitute legal, tax or regulatory advice. It describes practice observed across institutions and should not be relied upon in relation to any particular application.