Do Hashtags Work on YouTube? What They Do, Where to Put Them, and the 3-Hashtag Rule

The short answer

Yes, hashtags work on YouTube — but not the way they work on Instagram or TikTok. On YouTube a hashtag is a clickable link to a results page of other videos using the same tag. It is a navigation device and a small topic signal, not a distribution lever. Nobody browses YouTube hashtag pages at scale, so a hashtag will not push your video into anyone's feed. What it will do is make the topic of your video explicit, give viewers one more way to find your related uploads, and — if you overdo it — get every hashtag on the video ignored.

The two places hashtags appear

Hashtags live in the title or the description, and the two behave differently:

• In the description. If your title has no hashtags, YouTube surfaces up to three of your description hashtags above the video title on the watch page — the blue links most people picture when they think of YouTube hashtags. YouTube says it picks the three it considers most engaging, so this is not a guaranteed "first three win" slot, though leading with your three most relevant tags is still the only input you control.
• In the title. A hashtag typed into the title stays in the title and is clickable there. It costs you title characters — which are the most valuable characters on the entire video — so it is only worth it when the hashtag genuinely reads as part of the title, such as a series name.

Everything past the top three still counts as metadata. It just is not displayed anywhere in the interface.

The 60-hashtag limit that voids the whole set

This is the one hard rule in YouTube's documentation, and it is harsher than most people expect. If a video or playlist carries more than 60 hashtags, YouTube ignores every hashtag on that content — not just the ones past the cutoff. There is no partial credit and no warning. Anyone pasting a scraped block of 100 "trending" tags into the description has, in practice, published a video with zero hashtags.

Separately, YouTube's spam and misleading-metadata policy covers hashtags directly: hashtags that are not related to the video can lead to the video being removed from search or removed outright. Adding #shorts to a 20-minute tutorial, or #mrbeast to a video that has nothing to do with him, is the exact behaviour the policy describes.

The three-hashtag rule

Because only three are ever shown, three to five hashtags is the useful working range for almost every video. The structure that works:

Add two more further down the description if a video genuinely spans several topics. Do not add twenty. The eighteen nobody sees contribute nothing, and they move you toward the over-tagging line for no benefit.

Shorts: what #shorts actually does now

Very little, and this is the most out-of-date advice still circulating. Since 15 October 2024, YouTube classifies an upload as a Short automatically based on two things: a vertical or square aspect ratio, and a length of three minutes or less. Both conditions, no hashtag involved. The #shorts tag does not make a video a Short, does not make a Short eligible for the Shorts feed, and cannot rescue a horizontal video.

That does not make it useless — it is still a valid topic tag, and it costs nothing to include. It simply is not the switch that older guides claim. If you are adding it because you believe it controls classification, you can stop. Spend the attention on the first two seconds of the Short instead, which is what actually determines whether it travels.

Hashtags vs tags: not the same field

These get conflated constantly. Tags are the hidden keyword field in YouTube Studio, capped at 500 characters, invisible to viewers, and described by YouTube itself as a minimal signal — the full picture is in our guide to YouTube tags. Hashtags are public, clickable, and live in the title or description. One rule follows from that distinction: never paste a comma-separated keyword block into the description in place of hashtags. That is keyword stuffing under the same misleading-metadata policy, and it is one of the more reliable ways to get a video pulled from search.

Starter sets by niche

Use these as the broad tag and then add your own specific one — the specific tag is where the value is, so never publish a set that is nothing but generic terms:

• Gaming: #gaming, #gameplay, #letsplay, plus the exact game name as one word.
• Cooking: #cooking, #recipe, #homecooking, plus the dish or cuisine.
• Tech reviews: #tech, #techreview, #gadgets, plus the product name.
• Fitness: #fitness, #workout, #homeworkout, plus the body part or programme.
• Finance: #investing, #personalfinance, #money, plus the specific instrument or market.
• Education: #tutorial, #howto, #learning, plus the subject.

Skip #viral, #fyp, #trending, and #subscribe entirely. They describe no topic, they appear on tens of millions of unrelated videos, and #fyp in particular is a TikTok convention that has never meant anything on YouTube. Like the thumbnail spec, hashtags are a box to tick correctly and then stop thinking about — the click still comes from the thumbnail and the title.

Generate a clean set in seconds

CheckSEO's YouTube Hashtag Generator takes your video title or topic and returns a hashtag set built around the three-tag structure above — broad, specific, and channel — ordered so the ones you most want displayed sit at the front of the description, and safely inside the 60-tag limit.