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Threads Topic Tags: How to Use Them

Threads doesn't do hashtag lists. Each post gets one topic tag, which shows as a link and puts your post in front of people searching that topic. Here's how to add one, how to choose the right tag, and a checker to test your tag before you post.

1topic tag per post - choose carefully
Spaces OKtags can be phrases, like "slow cooker dinners"
No #the tag shows as a link, not a hashtag
= Searchtapping a tag opens search results for it
The basics

Topic tags vs hashtags

Meta's advice: "you can only tag one topic per post, so select the topic that best represents what you are saying."

Threads topic tagsHashtags elsewhere
Per postOneUsually several
How it looksA link, no # symbol#word inside the text
SpacesAllowed - "slow cooker dinners"Not allowed - #slowcookerdinners
Where it leadsSearch results for that topicA hashtag page or feed
Best useThe one topic your post is really aboutA mix of broad and niche tags
How to add one

How to add a topic tag on Threads

    Tag checker

    Check your topic tag before you post

    Paste your post and the tag you're thinking of. The checker flags common mistakes and shows how the tag will look.

    Try:
    yourbrand

      Choosing a tag

      How to choose the right topic tag

      Aim for the most specific tag people actually use. Broad tags are crowded; tiny ones have no audience.

      Too broadFoodMillions of posts, your post disappears
      BetterSlow cookerA real topic with an interested audience
      BestSlow cooker dinnersSpecific, searchable, matches the post exactly
      Too narrowTuesday chili with extra beansNobody searches this
      🔍Search the tag first

      Check it has recent, on-topic posts - that's your audience.

      👀Watch your niche

      Note the tags on strong posts from accounts like yours.

      🗂️Follow the topic

      Add it to a custom feed to see what does well there.

      📊Test and compare

      Try 2–3 tags over a few weeks and compare views in Insights.

      🔁Be consistent

      Reuse a small set of tags that match your content pillars.

      📍Go local

      Local businesses: try your town or city in the tag.

      Examples

      Topic tag ideas by niche

      Starting points to search and check. Pick tags with recent, relevant posts - activity changes all the time.

      🍳Food

      🏃Fitness

      💻Tech

      🏪Small business

      🎨Creators

      📍Local

      FAQ

      Threads topic tags FAQ

      Do hashtags work on Threads?
      Threads uses topic tags instead of hashtags. Each post can carry one topic tag, which appears as a link without the # symbol and connects your post to search results for that topic.
      How many topic tags can you use on Threads?
      One per post. Meta's guidance is to select the topic that best represents what you are saying.
      How do I add a topic tag on Threads?
      While writing a post, type # or tap the tag icon, then type a topic or choose a suggestion. Once posted, the tag shows on your post as a link.
      Can Threads topic tags have spaces?
      Yes. Topic tags can include spaces and special characters, so you can use natural phrases like "slow cooker dinners" or "small business tips".
      Do topic tags increase reach on Threads?
      They can help people who search or browse that topic find your post, but they won't rescue a weak post. A specific, relevant tag on a strong post works best.
      What happens when someone taps a topic tag?
      They're taken to search results for that topic, where they can browse other posts tagged with it. As Threads head Adam Mosseri put it, "the tag view is the search view."