Recently, the tax office has accused a vastnumber of taxpayers of not having the right to apply 50% of tax-deductible costs in their PIT. This is done to the detriment of both employees and employers. Some employers began to shift the responsibility for 50% of the costs to employees. Is this acceptable? In the last articles Rzeczpospolita and Prawo.pl published a comment by Dr. Piotr Sekulski, who dispels these doubts. What should an employee absolutely watch out for?