I wish to shine a light on the past, present and future issues of EU citizenship, with a focus on how it may look like in the context of a federal EU. Additionally, I wish to present current issues of EU citizenship, and how it might be improved in the existing context of the European Union's structure. These are some of the questions I wish to highlight in my research paper, focusing on how the original goals of this legal instrument's role changed since its introduction and what the organic development of it in a federal European Union might look like. It is of utmost importance to look at the current impact of EU citizenship on national law, in particular how it affected national administrative law. As a conclusion to my paper, I will present why the introduction of this kind of federal citizenship, and a federation's existence in particular would pose many challenges and would generally do more harm than good in the long term.