Words and Phrases - "sustains"
Reed v. Young, [1984] BTC 424 (C.A.), aff'd [1986] BTC 242 (HL)
sustained means incurred or suffered
"The word 'sustains' ... means no more than 'incurs' or 'suffers'." A trading "loss is only sustained because debts and liabilities have been incurred, but the loss does not have to be cleared or satisfied once and for all at the end of the period."
Words and Phrases
sustains