In connection with conducting research and development, taxpayers are entitled to a relief consisting in deducting from the tax base part of the tax deductible costs incurred for this type of activity - the so-called "Eligible costs".
The mechanism of this relief consists in deducting from the tax base part of the costs of obtaining income from R & D, so-called "Eligible costs".
It is therefore an additional reduction of the tax base for the same title, from which the given cost has already been included in the tax deductible costs.