325Interest on deposits with National Savings Bank
—Where the total income of an individual for the year of assessment includes, or would but for this section include, any sums paid or credited in respect of interest on deposits with the National Savings Bank, other than investment deposits, those sums shall be disregarded for all purposes of the Income Tax Acts, other than the furnishing of information, if or in so far as they do not exceed £70; and for this purpose the question whether or how far those sums exceed £70 shall, where by virtue of section 279 a woman’s income is deemed to be her husband's, be determined separately as regards the part of his income which is his by virtue of that section and the part which is his apart from that section.