To repeat what has been said before in relation to an analogous provision in the Act of 1922-1934: "To come within that provision there must be a loss or outgoing actually incurred. "Incurred" does not mean only defrayed, discharged, or borne, but rather it includes encountered, run into, or fallen upon. It is unsafe to attempt exhaustive definitions of a conception intended to have such a various or multifarious application. But it does not include a loss or expenditure which is no more than impending, threatened, or expected.": New Zealand Flax Investments Ltd. v. Federal Commissioner of Taxation [1] . Nothing that was decided in W. Nevill & Co. Ltd. v. Federal Commissioner of Taxation [2] was intended to imply that a liability to pay an ascertained sum is never incurred until the sum becomes due and payable. The question in that case was whether a sum which a company had agreed to pay one of two joint managing directors to induce him to retire was an outgoing on account of capital or was deductible. Portion of the sum was to be met by monthly payments over a period extending beyond the year of income and secured by promissory notes. It was decided that the outgoing was not on account of capital and was deductible but so much of it as was payable outside the year of income belonged to the ensuing accounting period. Probably on this minor point, to which the parties do not appear to have attached importance, the judges were influenced to some extent by some of the considerations affecting their decision on the major question and looked upon the monthly payments not so much as deferred instalments of an accrued liability in a lump sum but as an attempt to spread over a period of trading an outgoing parallel with the salary that had been saved. But whatever be the rationale of the decision of the point, clearly enough it is not based on a view that no outgoing could be incurred until actual payment was made. It is one thing, however, to say that it is not necessary, for the purposes of s. 51 (1), that an actual disbursement should have taken place. It is another thing to say that in the present case the taxpayer had incurred a loss or outgoing in the year of income in respect of the pay of its men during the annual leave to be taken in the ensuing accounting period by employees whose service had not as yet qualified them for annual leave. In respect of those employees there was no debitum in praesenti solvendum in futuro. There was not an accrued obligation, whether absolute or defeasible. There was at best an inchoate liability in process of accrual but subject to a variety of contingencies. It may be true, that regarding the labour employed as a whole, the accrual of an amount of the order claimed had, by 30th June 1947, become predictable with certainty. But that is not the test. If it be regarded nevertheless as an evidentiary consideration having some weight then it cannot be divorced from the further consideration that the source of the accruing liability, the award, imposes it as an obligation to pay wages for a period of time in the future during which the employee must be given leave. That means that it is imposed in the form of a liability associated with the operations of the taxpayer for the ensuing year. In short the deduction claimed of £578 10s. 2d. does not represent an expenditure associated with the production of income before 30th June 1947 for which a liability had been completely incurred before that date.