How to Research Instagram Hashtags: A Step-by-Step Process

Why hashtag research looks different in 2026

Since December 2025 Instagram allows up to five hashtags on a post or Reel. When you could use 30, research was mostly about volume: find lots of loosely related tags and paste them all. With five slots, research is about precision. You're looking for the handful of tags that most accurately describe a post and that the right people actually browse.

It also helps to be realistic about what you're researching for. Instagram's leadership has said hashtags don't meaningfully increase reach on their own; they help Instagram and people understand what a post is about. Good research makes your labels accurate. It won't turn a weak post into a viral one. (Our explainer on the 5-hashtag limit covers the rule in detail.)

Step 1: Start with the words that describe your post

Before opening any tool, write down what the post is, in plain language:

• Subject: What is literally shown? (latte art, a rosetta pour)
• Context: Where, when or for whom? (home barista, a café in Austin)
• Format or intent: Tutorial, before-and-after, review, behind the scenes?
• Audience: Who would care? (coffee lovers, café owners, beginners)

Turn those into candidate terms. For a latte art Reel filmed at home, candidates might be coffee, latte art, home barista, rosetta, espresso, milk steaming. You now have something specific to search instead of starting from generic "top hashtags" lists.

Step 2: Search each term in Instagram

Instagram search returns several kinds of results for a query, including accounts, audio, tags, places, Reels and posts, according to Meta's own description of how Instagram Search works.

On iPhone and Android

1. Tap the Search (magnifying glass) icon.
2. Type your candidate term into the search bar, without the # symbol.
3. Press search on your keyboard to see full results, then swipe to the Tags tab (tab names can vary slightly by app version).
4. Note the tags that appear: the exact term, longer variations, and related spellings.

On desktop

1. Go to instagram.com and log in.
2. Click Search in the left-hand menu.
3. Type your term. Suggestions include accounts and hashtags; select a hashtag to open its page.

Instagram's search suggestions are partly personalized and partly based on what people click, so the tags suggested to you are a useful hint about what's actually used. Capture the obvious tags and the more specific variants (for example #latteart, #latteartvideo, #homebarista).

Step 3: Study the top posts under each tag

Open each candidate hashtag page and scroll the top results. This is the most important step, because it shows what the tag means in practice.

Ask:

• Do these posts look like mine? Same subject, similar style, similar audience? If your home latte art Reel would look out of place, the tag isn't for you.
• Who's posting? Mostly hobbyists, mostly brands, mostly spam or giveaway accounts? A tag full of repost and promo accounts is rarely worth a slot.
• Is the content recent and varied? A tag with a lively mix of recent posts is actively used. A tag where the same few accounts dominate, or results look stale, tells you something too.
• Is the tag hijacked? Some innocent-sounding tags carry unrelated or adult content. That's a clear sign to skip it.

Use what you see to sort candidates into three rough tiers:

• Broad: huge, generic topics where top posts come from all kinds of accounts (#coffee).
• Mid: a clear sub-topic with a recognizable community (#latteart, #homebarista).
• Niche: specific subjects where the top posts closely match yours (#latteartvideo, #rosettalatteart).

These tiers are judgement calls, not official categories. Our niche pages, such as #coffee and #photography, sort tags the same way if you want a head start.

Step 4: Mine related tags and captions

Top posts are a source of new ideas:

1. Read the hashtags on the best-matching top posts. Creators in your niche often use specific tags you wouldn't have thought of.
2. Read the captions, not only the tags. Repeated phrases ("pour practice," "oat milk") are keywords your audience uses. Put the good ones in your caption as plain text, where they help people and Instagram understand the post.
3. Check tags from accounts you'd like to be grouped with. Look at a few respected accounts in your niche and note the tags that recur across their recent posts.
4. Follow each promising new tag back to Step 3. A tag isn't on the shortlist until you've looked at its top posts.

Step 5: Screen for relevance and restrictions

Before a tag makes your shortlist, run three checks:

• Relevance: Could someone who taps this tag be happy to find your post? If not, drop it.
• Restrictions: Some tags are limited or hidden because they've been associated with content that breaks Instagram's rules. Signs include a hashtag page showing few or no top posts, or a notice about hidden posts. Check candidates with our banned hashtag checker as well.
• Engagement bait: Tags like #likeforlike or #followforfollow attract bots and signal low quality. Leave them out.

Step 6: Build shortlists per content type

Most accounts post a few repeatable types of content. Build a shortlist of roughly 10 to 15 vetted tags for each type, labeled by tier. For each post, pick five:

Keep shortlists in a notes app so you can copy tags quickly. If you'd like a starting set to adjust, the Task Ant hashtag generator builds a 5-tag set from a short description, which you can then vet with the steps above.

Step 7: Test with Instagram Insights

Instagram doesn't provide per-hashtag analytics, so you can't prove a single tag worked. You can still compare posts:

1. On a professional account, open a post or Reel and tap View insights.
2. Look at views and how many came from non-followers, along with where views came from.
3. Keep a simple log: date, content type, the five tags used, views, and share from non-followers.
4. After several posts of the same type, compare sets. If posts using one set consistently reach more non-followers, keep it; if a set never does, swap its niche tags.

Keep in mind that the content itself, timing and how people respond affect results far more than the tags. Change one thing at a time and judge patterns over several posts, not one outlier. Instagram's own ranking explanation says popularity signals and people's past activity drive what's recommended in places like Explore, which is why a strong post with average tags usually beats a weak post with perfect ones. Our guide to how the Explore page works goes deeper.

Common research mistakes

• Choosing tags by size alone. The biggest tags are the most generic and the least descriptive.
• Copying a competitor's tags wholesale. Their tags describe their posts, not yours.
• Using the same five everywhere. Match tags to each post's subject.
• Skipping the top-posts check. A tag's name can be misleading; its results aren't.
• Researching tags but not captions. Plain-language keywords in the caption matter too. For more on finding content by keyword, see how Instagram search works.