Recently, the tax office has been accusing a large number of taxpayers of not having the right to apply 50% of tax-deductible costs. This is done to the detriment of both employees and employers. So how does the tax audit in 50% of tax-deductible costs looks like? Can taxpayers do something about it? The latest article in Gazeta Wyborcza published a comment by Piotr Sekulski, PhD provides insights to address these concerns. What should you absolutely pay attention to when applying this PIT tax relief?