How do you pick the right hashtags for Instagram Reels?

Straight answer: the right hashtags for Instagram Reels are a small mix of niche, medium and broad tags that match exactly what your video shows, and you need far fewer of them than you think. Three to five well-chosen hashtags will outperform thirty random ones every time, because Instagram's system is now reading your video and caption for context, not counting your tags.

Hashtags aren't doing what you think they're doing anymore

I'll say the bit most hashtag guides skip over. Hashtags used to be a discovery engine. Tag a Reel #smallbusiness or #fitnesstips in 2019 and you'd land in a feed built around that tag, full stop. That's not how the platform works now. Instagram's Reels algorithm classifies your video by watching it, reading your on-screen text, scanning your caption, and checking how people react in the first few seconds. Hashtags are one small signal among many, and a weak one at that.

That doesn't mean skip them. It means stop treating hashtag selection as the main job and start treating it as a supporting one. If your Reel is boring, no hashtag combination on earth will save it. If your Reel is strong, a lazy hashtag choice won't sink it either. What hashtags still do well is help Instagram double-check what your content is about and connect you to people actively searching or following specific tags, which matters more for niche and local content than for broad viral plays.

The three-tier system that works

Forget scrolling through "top 100 Instagram hashtags" lists. Most of those tags are so saturated your Reel disappears in seconds. Instead, build every hashtag set from three tiers:

• Broad (1-2 tags): big category tags with millions of posts, like #marketingtips or #ukbusiness. These tell Instagram the general topic.
• Medium (2-3 tags): more specific tags with tens to hundreds of thousands of posts, like #smallbusinessuk or #contentmarketingtips.
• Niche (2-3 tags): tight, specific tags with a few thousand to low tens of thousands of posts, like #ukcopywriter or #manchestersmallbusiness. These are where you get seen, because there's less competing for attention.

Say you run a small bakery in Leeds and you post a Reel showing your sourdough process from mix to bake. A broad tag might be #baking. A medium tag might be #sourdoughbread. A niche tag might be #leedsbakery or #artisanbreadleeds. Use one broad, two medium, three niche, and you've got a set that gives Instagram context without drowning you in impossible competition. That's six tags total, not thirty, and it will consistently outperform a wall of generic ones because every single tag describes what's in the video.

How many hashtags should you use

Instagram lets you add up to 30 hashtags per Reel. Ignore that ceiling. Meta's own creator guidance and repeated testing by social teams across the industry point to the same conclusion: 3 to 5 highly relevant hashtags perform as well as, and often better than, a full set of 30. Beyond that number you're not adding reach, you're adding clutter that makes your caption look like it's begging for attention. There's also a quieter cost nobody mentions: a caption stuffed with hashtags reads as low effort, and viewers judge that in the half-second before they decide whether to keep watching or swipe past.

My working rule is 5 to 8 hashtags per Reel, weighted toward niche and medium, with maybe one broad tag thrown in. That's enough to give Instagram signal without looking like spam. If you want to test this, run two weeks of Reels with 5 tags and two weeks with 20 tags on similar content and compare reach in your Reels insights. You'll almost always find the smaller, sharper set holds its own or wins.

Where to find hashtags worth using

Skip the generic "best hashtags" lists entirely, they're the same fifty tags recycled across a thousand blog posts and every single account is fighting over them. Better sources:

• Instagram's own search bar. Type a word related to your Reel and Instagram shows you related tags with post counts. Watch the count. If a tag has 40 million posts, your Reel is a raindrop in the ocean. If it has 8,000 to 40,000, you've got a real shot at showing up in that tag's top or recent posts.
• Competitor and peer accounts. Look at three or four accounts in your niche with engagement similar to or slightly ahead of yours and note which tags they repeat across posts, not just once.
• Your own caption keywords. If you're already writing captions that describe what's in the Reel clearly, turn the strongest phrases into hashtags. This does double duty because Instagram reads captions for context too, so your hashtags and caption reinforce the same signal instead of fighting each other.

If you're serious about building this, it's worth reading the deeper breakdown in how to find the best viral hashtags for Instagram, which goes into specific tag research methods beyond what fits here.

Match the hashtag to the actual content, not the account

This is where most people go wrong. They pick hashtags for their brand rather than for the specific Reel. Say you run an online course business teaching people to use spreadsheets, and you post a Reel showing a quick Excel trick. Tagging it #onlinecourses or #entrepreneurlife tells Instagram almost nothing useful, those tags cover a thousand unrelated topics. Tagging it #exceltips, #exceltricks, and #spreadsheethacks tells Instagram exactly what's happening in the video, and that specificity is what gets you served to people who search or follow those exact terms.

Every Reel should get its own small hashtag set based on what's literally shown, not a copy-pasted block you paste under everything you post. If you're pasting the same 15 hashtags under every Reel regardless of content, you're actively confusing the signal you're trying to send.

Caption keywords now matter more than tags

The uncomfortable bit again, because it's worth repeating: Instagram has been pushing hard toward SEO-style search behaviour, meaning what you type in your caption and on-screen text now carries real weight in how you get surfaced, sometimes more than the hashtags themselves. If your caption is one line and an emoji, you're wasting the strongest tool you have. Write captions that describe the content in plain language, the way you'd type a search query, then add your hashtag set underneath as backup, not as the main event.

This also means the old trick of hiding a giant hashtag block in the first comment instead of the caption is largely pointless now. Put your best 5 to 8 tags directly in the caption or as the first line under it. Instagram treats caption and comment hashtags roughly the same for discovery purposes, so there's no hack there, just fewer characters cluttering your actual message if you keep them in a comment.

A simple weekly routine that keeps this from becoming a time sink

You don't need to research hashtags from scratch every single time you post. Once a week, spend 20 minutes building three ready hashtag sets for your main content pillars, say one for tutorials, one for behind the scenes, one for product or offer content. Save each set as a note on your phone. When you post a Reel, pick the closest matching set and swap in one or two tags specific to that exact video. That's it. You're not reinventing hashtags daily, you're maintaining three solid sets and personalising them slightly each time.

Pairing this with a consistent posting rhythm matters more than most people admit. If you're batching content, a decent Instagram scheduling tool lets you attach the right hashtag set to each Reel in advance rather than scrambling at the moment of posting, when you're far more likely to grab whatever's fastest instead of what's right.

Check what's working, not what feels like it should

Here's the step people skip: after four to six weeks of using tiered hashtag sets, go into your Reels insights and check which posts got the strongest reach from non-followers and from hashtag or Explore traffic specifically. Some platforms report this breakdown directly under each Reel's insights panel. If your niche tags are pulling in more non-follower reach than your broad tags, that confirms the tighter tags are doing the actual work, and you should lean further into niche over broad next time. If you want a fuller method for tracking this over time rather than guessing from memory, it's worth reading through how to see the history of your Instagram Reels performance, which covers exactly where to find these numbers without losing an afternoon to it.

It's also worth noting how differently this behaves compared with other short video platforms. If you're cross-posting the same Reel to TikTok, don't assume the same hashtag logic applies, TikTok's search and hashtag behaviour still leans more literal than Instagram's does right now. There's a decent comparison in Instagram Reels vs TikTok if you're deciding where to put your effort.

And if hashtags feel like the whole battle, they're not, they're one lever next to a stronger opening frame, a caption that says something, and consistent posting. Pairing sharp hashtags with strong Story engagement tactics around each Reel does more for long term reach than any hashtag tweak alone ever will.

I keep every related walkthrough in the Instagram Help: 81 Guides to Followers, Hashtags, Money, Accounts and Fixes. Test your set first with my free hashtag checker.

Frequently asked questions

How many hashtags should I use on an Instagram Reel

Use 5 to 8 hashtags per Reel, weighted toward medium and niche tags with maybe one broad tag included, rather than filling all 30 available slots, since research and platform testing consistently show a small relevant set performs as well as or better than a large generic one.

Do hashtags still matter for Instagram Reels in 2026

Yes, but less than caption text and on-screen text, because Instagram's algorithm now classifies video content directly and reads captions for context, so hashtags act as a supporting signal rather than the main driver of reach they were several years ago.

Should I put hashtags in the caption or the first comment

Put your main hashtag set directly in the caption or right under it, since Instagram treats caption and first comment hashtags similarly for discovery purposes, meaning there's no real reach advantage to hiding them in a comment, only a tidier caption.

Where should I find hashtags instead of using generic lists

Use Instagram's own search bar to check post counts on tags related to your exact video, look at what similar-sized accounts in your niche repeat across multiple posts, and turn your strongest caption keywords into hashtags so both signals reinforce each other.