Direct from your link: "When assessing whether the going concern assumption is appropriate, management takes into account all available information about the future, which is at least, but not limited to, twelve months from the balance sheet date. The degree of consideration depends on the facts in each case." My emboldenment. This is no "12 month rule". If the board's 5 year plan (to which they refer in the accounts and therefore must be made available to the auditors) indicate that we will run out of money in a few years, that is absolutely relevant to the going concern consideration even when it's outside 12 months.