Prawotwórcze oddziaływanie orzecznictwa na kształt prawa podatkowego

The analysis of jurisdiction of national supreme courts as well as jurisdiction of European Court of Justice allows to state that two main approaches – conservative and modern (evolutionary) – have appeared. The latter is especially noteworthy. It creates new tax law institutions in accordance with requirements of a democratic state ruled by law. The modern approach (trend) is a source of two interesting tax law institutions; the first is known as the agreement between the tax payer and tax administration and the second is the institution of conditional unlimited tax duty. The former, which is a particular type of a public law agreement, has been created by jurisdiction of German Supreme Court of Financial Law (Bundesfi nanzhof), while the latter one - by jurisdiction of European Court of Justice and it has been implemented in tax law systems of the EU members