Section 18

Where accumulations of surplus income are made during a minority under any statutory power or under the general law, the period for which the accumulations are made is not (whether the trust was created or the accumulations were made before or after the coming into force of this Act) to be taken into account in determining the periods for which accumulations are permitted to be made by section 17, and accordingly an express trust for accumulation for any permitted period shall not be deemed to have been invalidated or become invalid, by reason of accumulations also having been made as aforesaid during the minority.