When a beneficiary mentioned in the third paragraph of article L. 3315-1 who has subscribed to an employee savings plan provided for in Title III allocates all or part of the sums allocated to him by the company under the profit-sharing scheme to the implementation of this plan, these sums are excluded from the basis of assessment for non-commercial profits and from the basis of assessment for industrial and commercial profits, up to a ceiling equal to three quarters of the average annual ceiling used to calculate social security contributions.