I. – When, in the course of a year, a taxpayer has realised income which by its nature is not likely to be collected annually and the amount of this exceptional income exceeds the average net income on the basis of which this taxpayer has been subject to income tax for the last three years, the person concerned may request that the corresponding tax be calculated by adding a quarter of the net exceptional income to his overall net taxable income and multiplying the additional contribution thus obtained by four. The net exceptional income is understood to be after deduction, where applicable, of the deficit recorded in the same category of income, the overall deficit or the negative overall net income.
The provisions set out in the first paragraph also apply to voluntary departure bonuses and to sums received by lessors of rural property by way of advances on rental payments for leases entered into in connection with the setting up of a young farmer benefiting from the start-up grant for young farmers or a special medium-term loan, and bonuses or allowances paid on an exceptional basis to employees when they change their place of work involving a transfer of domicile or residence, even if their amount does not exceed the average net taxable income for the last three years.
II. – When during the course of a year a taxpayer has, as a result of circumstances beyond his control, had the disposal of an income corresponding, by the normal due date of its payment, to one or more previous years, the person concerned may request that the tax corresponding to this net deferred income be calculated by dividing its amount by a coefficient equal to the number of calendar years corresponding to the normal due dates of payment increased by one, by adding the quotient thus determined to his overall net taxable income, then by multiplying the additional contribution thus obtained by the same coefficient. The net deferred income is understood to be after deduction, where applicable, of the deficit recorded in the same category of income, the overall deficit or the negative overall net income.
III. – The provisions of I and II apply only to exceptional or deferred income taxed according to the progressive scale provided for in article 197.