Scholars differ General principles
Is celebrating birthdays permitted?
Short answer
Scholars differ. Some say it is an innovation because the Prophet ﷺ and the Companions did not celebrate it, and it copies customs of others. Others permit a simple family gathering or a gift without any religious meaning, as a matter of custom. Do not mix it with anything haram.
Evidence
This is general information, not a fatwa. For your own situation, ask a qualified scholar.
Questions about halal and haram
Is celebrating birthdays permitted?
Scholars differ. Some say it is an innovation because the Prophet ﷺ and the Companions did not celebrate it, and it copies customs of others. Others permit a simple family gathering or a gift without any religious meaning, as a matter of custom. Do not mix it with anything haram.