The short version: Instagram doesn’t publish a trending hashtags list like X does, so you have to build your own by checking the search bar’s autocomplete numbers, the Reels tab, and three or four competitor accounts every week. I do this every Monday for my own posts and for clients, and it takes about twenty minutes once you’ve got the habit.
Before you paste a new block into a caption, run it through the free Instagram hashtag checker, which flags banned, duplicate and mega generic tags and scores the set.
Instagram doesn’t have a “trending hashtags” page, and that trips people up
Let’s clear this up first because it wastes more time than anything else in this whole topic. X (Twitter) has a Trending tab. TikTok has a Discover page with trending sounds and hashtags right there. Instagram has neither. There is no official “here’s what’s hot today” screen anywhere in the app.
So when someone Googles “which Instagram hashtags are trending today” and expects a clean list, they end up on a third party website showing hashtag counts that are months out of date, or worse, a list that was scraped once in 2023 and never touched again. I’ve seen clients paste hashtags like #instagood and #photooftheday into a caption because a “trending” article told them to, not realising those two tags have over a billion posts between them and have been dead weight for years.
The honest bit that most guides skip: hashtags on Instagram carry a fraction of the weight they did in 2019. The algorithm now leans on watch time, saves, shares and whether people follow you off the back of a post, far more than it leans on tag matching. So “finding trending hashtags” isn’t really about chasing reach anymore. It’s about search visibility, because Instagram search now works more like Google than like a hashtag directory. That’s the actual reason this still matters.
Where I check, in order, every week
Here’s my real routine, the one I use on my own account and on client accounts, not a theoretical one.
- The search bar autocomplete. Tap the magnifying glass, type your topic word (say “email marketing” or “small business tips”), and look at the post counts that appear under each suggested tag. If a tag jumped from 400,000 posts to 620,000 posts in the space of two weeks, that’s a live signal something is picking up steam right now, not a number frozen in time.
- The Reels tab, specifically the audio attached to Reels that are getting pushed to you. Trending hashtags and trending audio move together on Instagram. If you spot the same sound under five Reels in your feed in one sitting, check what hashtags those creators are pairing with it.
- Three to five accounts in your niche that post daily. Not the huge accounts with a million followers, the mid-size ones with 20,000 to 80,000 followers who are clearly testing content constantly. Their hashtag choices shift faster because they’re watching their own insights closely.
- The Explore page, but only after you’ve engaged with content in your niche for a few days. Explore is personalised, so it needs feeding first. Like and comment on posts in your topic for three or four days, then check what tags show up on the posts Explore serves you.
The client story that taught me this
I had a client last year, a small skincare brand founder (nothing medical, just product marketing) who was convinced her hashtags were the reason her Reels weren’t taking off. She was using the same fifteen tags on every single post: #skincare, #beautytips, #glowup, that sort of thing. Big, generic, saturated.
We ran a six week test. Same posting frequency, same rough content style, but I swapped her tags weekly using the search bar method above, watching for tags with rising post counts that still sat under 200,000 posts total (small enough that a new post could surface in the top or recent feed for that tag). Week one she used #skincareroutine2026, #naturalglowtips, #cleanbeautyfinds. Week three, after checking what her competitors were newly using, we added #skinbarrierrepair, which had jumped from about 90,000 to 140,000 posts in ten days.
Reach didn’t explode from hashtags alone, and I want to be straight about that because plenty of hashtag guides oversell this part. What changed was that two of her Reels started showing up when people searched “skin barrier” directly in the search bar, and that search traffic converted better than any hashtag reach ever had, because those people were actively looking, not scrolling past. Her saves on those two posts were four times her account average. That’s the real payoff of this kind of hashtag work: search discovery, not viral reach.
A simple weekly method you can stick to
Here’s the step-by-step version, the one I’d hand a client on day one:
- Step 1: Pick your three core topics (mine are AI for small business, social media strategy, and public speaking). Write them down.
- Step 2: Every Monday, type each topic into the Instagram search bar under the Tags filter. Screenshot the post counts.
- Step 3: Compare this week’s screenshot to last week’s. Any tag that’s grown by more than 10 to 15 percent in a week goes on your shortlist.
- Step 4: Check three competitor or peer accounts. Note any tag they’ve started using in the last fortnight that they weren’t using a month ago.
- Step 5: Build a rotating set of 8 to 12 hashtags per topic, mixing one or two large tags (500k to 1 million posts), several mid-size ones (50,000 to 300,000), and two or three small, specific ones (under 20,000). This mix matters more than chasing whatever’s biggest.
- Step 6: Use them, then check Insights after 48 hours. Look at “reach from hashtags” if it’s showing, or just track saves and profile visits as your real signal.
Twenty minutes, once a week, done beats an hour of guessing done sporadically. And if you’re posting Reels rather than static images, remember what Instagram officially calls this format matters for how you search and tag it, because Instagram’s own search treats Reels slightly differently to feed posts in how it surfaces them.
The mistake that’s quietly costing people reach
Here’s something I rarely see written plainly: stuffing 30 hashtags into every caption is not a neutral choice, it’s actively hurting some posts. Instagram’s spam detection has got stricter, and accounts that use the maximum 30 tags on every single post, especially ones that repeat exactly the same 30 tags every time, get treated with more suspicion by the system than accounts using a smaller, rotating set. I’ve watched reach dip on client accounts within two weeks of switching to identical 30-tag blocks copy-pasted from a saved note.
If you’re not sure which of your existing tags are dead weight, it’s worth working out which hashtags to hide on a post rather than deleting them outright, since hiding lets you keep the caption clean while still testing whether a tag is pulling its weight. And if you’re building lighter, more playful tags for personal posts, the same testing logic applies, whether that’s a fun set for a friend’s photo or tags built to get seen rather than just look cute.
Where hashtags fit into the bigger picture
I’ll say the uncomfortable part again because it bears repeating: if your content isn’t holding attention in the first three seconds, no hashtag on earth will save it. I’ve had posts with three carefully chosen tags outperform posts with all thirty slots filled, purely because the hook and the first frame were stronger. Hashtags are a small lever in a much bigger machine, and if you want the full picture of how the pieces fit together, my guide on building an Instagram engagement strategy that works in 2026 covers the parts that do more heavy lifting than tags ever will.
It’s also worth knowing this discipline doesn’t transfer neatly to other platforms. I get asked constantly whether the same hashtag hunting works for YouTube, and the honest answer is not really, YouTube tags function more like search keywords baked into your title and description than discovery tags, which is why so few hashtags help YouTubers grow their channel. Different platform, different mechanics, don’t copy your Instagram habits over wholesale.
Tools that can speed this up (without doing it for you)
I use a mix of manual checking and a couple of paid tools for clients where I’m managing multiple accounts at once. Later’s hashtag suggestion feature and Flick both track hashtag performance over time and will flag rising tags faster than manual search bar checks alone, which is handy when you’re managing five or six accounts and don’t have twenty minutes per account per week. But I’ll be straight with you: no tool replaces looking at what your specific competitors and your specific niche are doing right now, this week. Tools are a shortcut for the data collection, not a replacement for the judgment call on which tags fit your content.
This is one of 81 Instagram guides; the full index is Instagram: every guide in one place.
Frequently asked questions
Does Instagram have an official trending hashtags list?
No. Unlike X or TikTok, Instagram has never published a live trending hashtags page, so you have to build your own picture using search bar post counts, the Reels tab and competitor accounts, checked on a regular schedule.
How many hashtags should I use on Instagram in 2026?
Somewhere between 8 and 12 tends to perform better than the maximum 30, especially on Reels, and mixing tag sizes (a couple of large ones, several mid-size, a few small and specific) works better than piling on volume for its own sake.
Do trending hashtags still boost Instagram reach the way they used to?
Not the way they did in 2018 or 2019. The algorithm now weighs watch time, saves and shares far more heavily than hashtag matching, so the real benefit of well-chosen trending tags today is search discoverability, not viral reach.
How often should I check for new trending hashtags?
Weekly is enough for most small businesses and creators. Checking daily rarely reveals meaningful change, since genuine shifts in post counts and competitor behaviour typically show up over a week to ten days, not overnight.
Official documentation
The Facebook side of this is covered in: trending Facebook Reels hashtags.
