Wealth tax disallowance: sums paid on account of wealth tax are treated as non allowable deductions under amended rules. The amendment deems any sum paid on account of wealth tax to be within the enumerated non allowable items under section 40, and defines 'wealth tax' to include the domestic Wealth tax Act, taxes of a similar character under foreign law, and taxes charged with reference to the value of assets or capital employed in a business or profession, while excluding taxes charged with reference to the value of any particular asset.