In case the person you opt for the deduction, it will amount to 30% of the donation amount itself, on a maximum donation of €30,000. This means that a maximum donation of €30,000 will result in a tax saving of €9,000.
As regards the donations made by institutions and companies, for them the only possibility of deduction from taxable income is foreseen, in the same limit of 10% of the total declared income intended for natural persons.