How Many Hashtags to Use on Instagram and How to Choose the Right Ones

You can use a maximum of 5 hashtags on a single Instagram post. Instagram states this in its Help Center (as of October 2026), and if the limit is exceeded, the caption or comment will not be published. More important than the number is selection: two to five hashtags that precisely describe the topic of the post will help you more than generic popular tags.

How many hashtags does Instagram currently allow?

According to Instagram's Help Center guidance on hashtags you can use a maximum of 5 hashtags on a single post (as of October 2026). If you write more, the comment containing them will not be published. Older advice about 30 hashtags therefore no longer applies.

A hashtag is a word or phrase with a # sign at the beginning that places a post within a certain topic. When you tap a hashtag, a page opens with all public photos and videos that use it. You can find other terms in our glossary of social media terms.

The same Help Center also sets out further rules that are worth knowing:

• You can write a hashtag in the caption or in a comment on your post. For a post that has already been published, it is enough to edit the caption.
• You can only tag your own posts with a hashtag, not those of others.
• Numbers work in hashtags, but spaces and special characters such as $ or % do not.
• Posts from private profiles do not appear publicly on hashtag pages.

Limits and features change, so please check the current situation in Instagram's Help Center from time to time.

What are hashtags still used for on Instagram?

Today, hashtags mainly serve to place a post within a topic and to help people find it in search. On their own, they do not guarantee reach, because recommendations depend mainly on how people react to the content.

Meta in the description of search on Instagram states that search offers, among other things, accounts, hashtags, suggested keywords, Reels and posts. The signals include the similarity between the searched words and the words in a hashtag, as well as how popular the hashtag is with people who searched for the same thing (status as of October 2026).

For recommendations in Feed, Reels and Explore, hashtags play a smaller role than is often claimed. We explain how these parts of the app select content in our article how the Instagram algorithm works.

Why do the profile name and caption matter, too?

Instagram search compares the searched words with the username and profile name. If you add what you do to your profile name, you may appear in search results even without a hashtag.

In the same search description, Meta lists as a signal "similarity between the words in your search and the words in your username or profile name" (status as of October 2026). In practice, this means:

• The profile name (the one displayed in bold above the bio) can include your field and city, for example "Jana Nováková | wedding photographer Brno".
• Keep your username short and easy to remember; you do not need to squeeze your field into it at all costs.
• Write captions for people: clearly state what the post shows and who it is for. Meta does not explicitly list caption text as a search signal in its search description, so do not expect miracles from keywords in captions, but a natural description of the topic will not do any harm.

How do you choose suitable Czech and niche hashtags?

Choose hashtags according to the topic of the specific post and according to what the person you want to reach would search for. For a Czech profile, a combination of a niche, local and narrowly topical hashtag usually works well.

1. Write down what the post is about. In one sentence, for example "gluten-free bread recipe" or "new collection of ceramic mugs".
2. Enter the topic into Instagram search. Look at which hashtags and suggested keywords the app offers and which posts appear under them.
3. Open the hashtag page. Check whether people share content under it that is similar to yours. If there is something completely different there, the hashtag will not help you.
4. Choose 2–5 hashtags with different reach: one niche (#keramika), one local (#brno, #vyrobenovcesku) and one narrow, exactly matching your content (#keramickyhrnek).
5. Compare the variant with diacritics and the one without them. In search, check which of them has more posts similar to yours.
6. Consider your own brand hashtag for a company or project, so that posts about it can be easily found.

Hashtag type	Example	What it is for
Niche	#ceramics, #photographer	Places the post within a broader topic
Local	#prague, #ostrava	Helps people in the area and suits services and shops
Narrowly themed	#glutenfreebaking	Less competition, more precise audience
Branded	#yourcompanyname	Groups your posts and your customers' posts together

Which hashtags should you avoid?

Avoid hashtags that are unrelated to your content, “follow for follow” hashtags, and hashtags where the page shows no new posts. None of these will bring you an audience that is interested in your content.

• Unrelated popular hashtags. Instagram in its recommendation guidelines classifies as low-quality content, among other things, long captions unrelated to the content and coordinated comment networks designed to artificially boost engagement (status as of October 2026).
• Hashtags for exchanging engagement. Meta in spam policies prohibits the sale, purchase or exchange of engagement, including the use of specific hashtags.
• Hashtags with a suspicious page. If you tap a hashtag and see no new posts, a warning appears, or inappropriate content predominates under it, it is best not to use it. Instagram does not publish an official list of such hashtags.
• The same five hashtags under every post. A hashtag should describe a specific post, not the whole profile.

If you feel that your posts are suddenly not being found by anyone, check your account status in the app settings. We describe the procedure in the article how to recognise a shadowban on Instagram. Shadowban is an unofficial term for a situation in which an account's reach is limited without an explicit notice.

How do you measure whether hashtags are helping you?

You can determine the benefit of hashtags only by comparing similar posts in Instagram Insights over a longer period. Instagram does not publish any official rule on the ideal number or type of hashtags, so it is worth running your own test.

According to Instagram Help Centre available for public accounts and show, among other things, views, number of viewers, interactions (likes, comments, saves and shares) and accounts engaged, over periods of up to 90 days (status as of October 2026). Test procedure:

1. Choose one type of content, for example Reels on the same topic, so that the comparison is fair.
2. Use one set of hashtags for some posts (for example, industry-specific and local ones) and a different set for others (for example, highly niche ones).
3. After a week, record the reach, number of viewers, interactions and new followers for each post.
4. Compare the averages of both groups, not individual results. A single successful post may have a completely different cause than the hashtags.
5. Keep the variant that performs better and repeat the test after some time.

Follow the same approach for questions such as "when to post" or "how long a caption should be". Your own data from your profile is more reliable than general rules of thumb.

When paid promotion makes sense and when it does not?

Hashtags or paid packages will not replace content that interests people. Instagram's rules do not permit inauthentic and paid activity: Meta's spam policies prohibit buying and selling likes, views and follows, and Instagram's recommendation guidelines state that accounts engaged in inauthentic behaviour, such as buying likes, may not be recommended. Restriction of reach or of the account therefore cannot be ruled out, as is also explicitly stated in terms and conditions (Art. 3.3). Purchased interactions do not guarantee audience interest, sales or reach, and they may worsen the ratio of interactions to followers.

A package, for example views on Instagram may make sense at most as an initial social proof for a new profile with good content, or as a supplement to a specific campaign alongside your own work on content and hashtags. It makes no sense if you do not yet have content, if you want to meet monetisation or verification requirements, if the account already has a warning or restriction, or if you expect genuine reactions from customers. If you decide on a package, you can find current prices in price list.