For years the advice was simple: add 30 hashtags and watch the reach roll in. That advice is now out of date. Platforms have capped, downplayed or quietly removed hashtag features, and recommendation systems read your whole post instead. So do hashtags still work in 2026? Yes, but in a smaller, different role. This guide explains exactly what each platform has said, how many hashtags to use, and what to do instead to get discovered.
Key takeaways
- Hashtags in 2026 work as topic labels and search tags, not as a reach multiplier.
- Instagram limits posts to five hashtags, and its head, Adam Mosseri, has said hashtags don't increase reach.
- X recommends using no more than two hashtags per post, and hashtags are banned from X ads.
- YouTube ignores every hashtag on a video that has more than 60 of them.
- Keywords in your caption, on-screen text, spoken audio and alt text now matter more for discovery than hashtags.
Do hashtags still work in 2026?
Hashtags still work, but only for categorising content and helping it appear in hashtag or keyword searches. They no longer reliably push posts to new audiences, because platforms now decide distribution mostly from how people respond to a post and what the content itself contains.
The shift has been gradual and fairly public:
- June 2020: TikTok explained that "video information" such as captions, sounds and hashtags is one input to recommendations, alongside much stronger signals like whether people watch to the end.
- Late 2024: LinkedIn removed the ability to follow hashtags and stopped showing hashtags on profiles, according to Sprout Social.
- December 2024: Elon Musk told X users to stop using hashtags, saying the system no longer needs them.
- February 2025: Mosseri said hashtags don't help reach on Instagram but are useful for telling people what a post is about.
- June 2025: X banned hashtags from ads.
- December 2025: Instagram capped posts at five hashtags. Threads already limited posts to one.
The pattern is clear: hashtags are becoming metadata, not a growth hack.
How many hashtags should you use on each platform?
Use a small number of specific, relevant hashtags on every platform, usually between one and five. The table sums up what each platform officially says and what matters more.
| Platform | Official guidance | Practical number | What matters more |
|---|---|---|---|
| Hard cap of five; hashtags don't boost reach | 3–5 | Keywords in caption, on-screen text and alt text; shares and saves | |
| TikTok | Hashtags are one part of "video information" | 3–5 | Watch time, captions, spoken keywords, on-screen text |
| YouTube | More than 60 hashtags and all are ignored; first three show near the title | 2–3 | Title, description, thumbnail, viewer satisfaction |
| X | Recommends no more than two; banned in ads | 0–2 | The post itself, replies and reposts |
| Hashtag following removed | 0–3 | Clear topic in the first lines, comments and dwell time | |
| Threads | One hashtag (topic tag) per post | 1 | Conversation and replies |
| No strong official emphasis | 0–3 | Shares, comments and content quality |
Do hashtags work on Instagram?
Hashtags on Instagram help with search and categorisation, not reach. Instagram now blocks you from adding more than five per post, and in announcing the limit said that a few targeted hashtags perform better than many generic ones, as Social Media Today reported.
Instagram search looks at much more than tags, including the words in your caption and your profile. Since July 2025, public posts from professional accounts can also be indexed by Google and other search engines, according to PPC Land, which makes descriptive captions even more valuable.
What to do on Instagram:
- Write the main keyword in the first line of the caption ("Natural hair wash day routine for 4C hair").
- Add the same phrase as on-screen text in Reels.
- Choose three to five hashtags: one broad topic, two or three specific ones, and optionally one branded tag.
- Fill in alt text on photos and carousels.
More detail is in our guide on how to grow on Instagram.
Do hashtags work on TikTok?
Hashtags on TikTok help the system understand your topic, but they are a weak signal compared with how viewers behave. TikTok's own explanation of the For You feed lists captions, sounds and hashtags as video information, while saying that strong signals like finishing a video carry much more weight.
TikTok also works as a search engine for many people, so keywords matter. Say your topic out loud in the first few seconds, put it in on-screen text, and write a caption that reads like a search query ("easy jollof rice for beginners"). Then add a few niche hashtags. Big generic tags like #fyp are not an official signal of anything; they simply describe nothing about your video. Our TikTok growth guide covers the rest.
Do hashtags work on YouTube?
Yes, in a limited way. YouTube Help says hashtags in titles and descriptions link to a results page of related videos, up to three hashtags from the description can appear near the title, and if a video has more than 60 hashtags YouTube ignores all of them. Over-tagging can also get a video removed from search.
On YouTube, your title, thumbnail and description do the heavy lifting. Use two or three precise hashtags (for example, a series name and a topic) and spend your effort on a keyword-rich title and a description that clearly summarises the video. See how to grow on YouTube.
Do hashtags work on X?
Hashtags on X are optional and mostly useful for joining a live conversation, such as an event, match or trending topic. The X Help Center recommends using no more than two hashtags per post, and X no longer allows them in ads.
If you use one, make it the event or conversation tag people are actually following, like a conference or a football match. Otherwise, let the post speak for itself. Our X growth guide explains what drives reach there.
Do hashtags work on LinkedIn?
Hashtags on LinkedIn now act mainly as topic labels. Since LinkedIn removed hashtag following, there's no audience "subscribed" to a hashtag waiting to see your post. A couple of relevant tags at the end won't hurt, but the first two lines of your post, which show before "see more", are what decide whether people engage. Read more in our LinkedIn guide.
What should you use instead of hashtags?
Use keywords. Every major platform now reads the words in your caption, the text on screen, and in many cases the words you speak, to decide what your content is about and who might want it. This is often called social SEO.
How to do social SEO in five steps:
- Find the phrase your audience types. Start typing your topic into the platform's search bar and note the autocomplete suggestions.
- Put it in the first line of your caption, written naturally.
- Say it in the first few seconds of a video and show it as on-screen text.
- Use it in your profile name or bio if it's your core topic (for example, "Abuja wedding photographer").
- Add a few matching hashtags as a final label.
Our guide on how to write social media captions shows how to fit keywords into a caption without sounding robotic. If you want a faster start, BrainPost's AI post generator suggests captions and a short set of relevant hashtags for each platform, which you can then edit.
How do you choose the right hashtags?
Choose hashtags that describe the post precisely and that real people use. Relevance beats popularity every time.
- One broad tag for the category (#skincare).
- One or two specific tags for the exact topic or audience (#oilyskinroutine, #skincarenigeria).
- One branded or series tag if you run a recurring series (#FridayFixWithAda).
Avoid hashtags unrelated to your post, even if they're trending, and don't paste the same block of tags on every post. Check a tag before using it: if the top posts don't look like yours, it's the wrong tag.
Frequently asked questions
Should I put hashtags in the caption or the first comment?
Platforms have given clear guidance on caption hashtags but not on first-comment hashtags, so the caption is the safer choice. Putting them at the end of the caption keeps the message clean while still labelling the post.
Do banned hashtags still exist on Instagram?
Instagram may restrict or hide results for hashtags that are associated with content breaking its rules. If you notice a tag showing few or no recent posts, it's best not to use it.
Are branded hashtags still worth creating?
Yes, for organising your own content and community, such as a series, a challenge or customer photos. Just don't expect a branded hashtag to create reach on its own; you still need to promote it.
Do hashtags help posts appear on Google?
Indirectly at best. What helps public posts show up in search engines is clear, descriptive text, especially the caption and alt text, rather than a list of tags.
Can too many hashtags hurt your post?
Yes. YouTube ignores all hashtags on videos with more than 60, Instagram won't let you add more than five, and long generic lists can make a post look spammy to people reading it.
Sources
- Social Media Today — Instagram implements new limits on hashtag use
- TikTok Newsroom — How TikTok recommends videos #ForYou
- YouTube Help — Find playlists and videos using hashtags
- X Help Center — How to use hashtags
- FOX 5 DC — Are hashtags dead? Elon Musk says 'please stop' using them on X
- MediaPost — Elon didn't kill hashtags, he just called the time of death
- Sprout Social — LinkedIn hashtags: how to use them
- PPC Land — Instagram content becomes searchable on Google starting July 10