Tax deductions 
Natural persons can bear in mind that UNICEF is on the list of entities pursuant to Article 22 (1) (1), letter "о" of the Natural Persons’ Income Tax Act, donations to whom are deducted from the tax base of the person to the amount of 5 %. It has to be taken into account that pursuant to Article 22 (2) of the Natural Persons’ Income Tax Act the total amount of the tax break for donations cannot exceed 65 % of the amount of annual tax bases.

Corporate Income Tax Act 
Article 31, item 18. (Last Amendment - SG No. 99/2011, in force as of 01.01.2012) (1) The accounting expenses on donations to a total amount of up to 10 per cent of the positive accounting financial result (accounting profit) shall be recognized for tax purposes where the expenses on donations are incurred in favour of New – SG No. 106/2008, in force as of 01.01.2009) United Nations International Children’s Emergency Fund (UNICEF). The aggregate amount of the expenses on donations recognized for tax purposes under Paragraphs (1) to (4) may not exceed 65 per cent of the accounting profit.
See General Terms and Conditions for monthly donations under BLAGODETEL programme of UNICEF Bulgaria here.