Some tortoises go all their life and never need the beak to be trimmed. What makes you ask this question? Maybe if you post a picture we can help you better.
Yes, it may need to be trimmed. That's why I asked for a picture. Some tortoises' beaks are trimmed naturally by grazing and eating off a rough surface. Other tortoises, who have their food cut up for them, may need to have their beaks manually trimmed occasionally.