permitted stay. Extensions are typically granted only on humanitarian grounds, due to force majeure, or in cases of serious personal emergencies. An extension must be applied for before your current visa expires and is subject to approval by the relevant Hungarian immigration authorities. Extensions are not granted for general tourism purposes. Overstaying your visa without prior approval is a serious violation of Schengen regulations and can have significant long-term consequences on your future visa applications to Hungary and other Schengen countries.