One topic, explained in full, paid for by a disclosed link

This site is one desk in a series of narrow information sites. Each one takes a single mechanism in online gambling and explains it properly - the rules, the arithmetic, the paperwork and the traps - with no rankings, no tips and no promises.

Joins the two: one artefact, one person expectedKeeps them apart: a verified fact that differsA person decides: an overlap a household also produces

Direct answerOne Account explains the rule that a gambling account is personal to its named holder: the clause behind it, the signals an operator compares when it decides whether two accounts are one person, what a shared household looks like to that comparison, what happens to linked accounts and the money inside them, and how a decision can be contested. The site is funded by one disclosed affiliate link and carries no ranking, no review and no recommendation of any operator.

How this site is funded

By a single partner link, rel="sponsored noopener", disclosed in a band near the top of every page. If a reader opens a partner account through it, this site may be paid a referral fee, at no additional cost to the reader. There is no second revenue stream: no advertising, no sponsored content, no data sale and no paid placement anywhere in this series.

What this desk will not publish

No rankings and no "best" anything. Not of operators, not of terms, not of how strictly a comparison is run. Ranking is how commission-based sites confuse a reader, and it is permanently out of scope.
No techniques for holding two accounts unnoticed. The subject invites it and the desk refuses it. Misrepresenting who is behind an account is identity fraud in most jurisdictions, and half of this desk is about the honest cases a reader can actually resolve.
No reproduction of a named company's clause or threshold. Figures differ by operator, product and jurisdiction and change by publication; the mechanism is the durable thing.
No invented facts. Where a number varies between products the page says it varies and labels the figure illustrative rather than quoting one company as if it were the norm.
No suggestion that a shared household is a problem to hide. A partner, a flatmate or an adult child on one address is ordinary, and the desk is written so that situation can be explained rather than disguised.

Where it sits in the series

This desk is one of a group of sites that each own a single topic. The neighbours that matter most here are the identity desk (which documents prove who a person is), the account-security desk (a third party taking an account over without permission, which is the opposite problem to this one), the agreement desk (how the clause is formed, stamped and varied), the data desk (the rights over what an operator holds about a person) and the restriction desk (the operator's commercial ceiling on a customer). Between them they cover the person, the intruder, the paper, the data and the ceiling; this one covers the rule that one person is one account.

Who this is for

Adults dealing with a real question, usually mid-friction: a withdrawal held, a partner's account frozen, a shared card flagged, a duplicate the reader forgot they had, a term about one account per person that a reader has just found and does not know how to read. It is written for the reader who wants the mechanism rather than a marketing page, and who would rather check the arithmetic than take a number on trust. It is not written for anyone under 18, for anyone looking for picks or systems, or for anyone looking for a way around a term, an exclusion or a limit.

A note on tone. Nothing in this desk is intended to make a second account look manageable or a shared household look suspicious. The arithmetic is shown because the amounts a reader has at stake in a linkage decision are large, and a figure a reader can re-derive is worth more here than a reassurance they cannot check.