Key takeaways
- YouTube allows up to 15 hashtags combined across the title and description — exceeding this causes ALL hashtags on the video to be ignored, not just the extras.
- Platforms change these limits without much notice — treat this as a checkpoint, not a permanent guarantee.
YouTube hashtag limit: what breaks it
- 15 hashtags maximum, counted across title and description together
- Exceeding 15 voids every hashtag on the video, not just the ones over the limit
- The first 3 hashtags added automatically appear above the video title in blue text
What to prioritize in the first 3
Since the first 3 hashtags get the most visibility (shown above the title), lead with your primary keyword, a broad topic hashtag, and your channel brand, in that order of priority.
platform limitsreference
FAQ
- How many hashtags can I use on a YouTube video?
- Up to 15, counted across the title and description combined.
- What happens if I use more than 15 hashtags?
- YouTube ignores all of them — not just the ones over 15, the entire hashtag set on that video.
- Do hashtags in the title count toward the same limit as the description?
- Yes — the 15-hashtag cap counts hashtags in the title and description together, not separately.