EASA Licences and ratings

All flight crew pilot licences are valid permanently. Thus there is no expiry date for the validity of the licence itself. However the validity of your EASA pilot licence is conditioned by having valid other ratings, certificates and qualifications endorsed in the licence. Generally speaking the licence itself only describes the operation under which you can exercise the privileges of endorsed ratings - e.g. privately only (LAPL and PPL) or commercially (CPL and ATPL).

To keep your pilot licence valid you must be a holder of valid medical certificate corresponding to the licence you hold (e.g. Class 1 or Class 2).

So by holding an EASA pilot licence, there is no need to revalidate nor to renew the validity of the flight crew licence. However you have to keep valid your class ratings, instrument rating or type rating to exercise its privileges.