(Occasional Income) Article 34 Occasional income means income outside of interest income, dividend income, real property income, business income, salary income, retirement income, timber income, and capital gains; which does not constitute income from one-time payments arising from continuous activities undertaken on a commercial basis; and which does not have the nature of compensation for work or other services or for the transfer of assets.
Occasional income is the amount arrived at when the amounts expended to gain the revenue arising from occasional income for the year are added together (but only amounts that were directly needed to bring about the undertaking of acts that generated the revenue or to provoke the occurrence of causes that generated the revenue), the sum total thereof is deducted from gross revenues constituting occasional income in the relevant year, and the special occasional income deduction is applied against the net balance.
The special occasional income deduction provided for in the preceding paragraph is 500,000 yen (or the net balance provided for in that paragraph, if this is less than 500,000 yen).