The reference income - reads the draft - is calculated by dividing the sum of the total income earned, in the year preceding the year of bearing the expense, by the taxpayer, the taxpayer's spouse, by the person linked by a civil union or cohabitant if present in his family unit, and by family members, other than the spouse (ex art. 12 of the TUIR - Presidential Decree 917/1986), by the person linked by a civil union or by the cohabitant, present in his family unit, who in the previous year The one for supporting the expenditure was found under the conditions set out in paragraph 2 of the same article 12 of the TUIR, for a number of parts determined as follows:
— taxpayer > 1
— if there is a spouse, a person bound by a civil union or a cohabiting person in the family unit > add 1
— if there are family members in the family unit, other than the spouse, the person linked by a civil union or the cohabitant, who in the year preceding the year in which they supported the expenditure found themselves in the conditions set out in paragraph 2 of the same article 12, in numbers equal to:
— a family member > add 0.5
— two family members > add 1
— three or more family members > add 2
In other words, if the taxpayer is one, the ceiling is 15,000 euros, if there is a spouse or partner, it rises to 30,000 euros, if there is a relative/child to 37,500, if there are 2 family members, it reaches 52,500 euros; for each additional family member, 15,000 euros must be added.