Straight answer: put them wherever keeps your caption clean, because Instagram’s algorithm treats hashtags in the caption and hashtags in the first comment as functionally the same for reach. I tested this myself over a month on my own account and the difference in reach was inside the margin of noise. The bit that changes your results is which hashtags you use and how many, not where you park them.
What Instagram itself has said about this
Adam Mosseri, the head of Instagram, has said more than once in his public Q&As that hashtags are not the ranking lever creators think they are. He’s compared them to keywords more than growth hacks, useful for helping the right small pocket of people find a post through search, not a magic multiplier for the explore page. That single fact undercuts most of the advice floating around about caption versus comment placement, because if hashtags themselves have a small effect, arguing over where to put them is arguing over decimal points.
I still see accounts treat this like it’s 2018, stuffing 30 hashtags into a caption and hiding them behind five dots on separate lines, then obsessing over whether the first comment “dilutes the algorithm.” It doesn’t dilute anything. There’s no dilution mechanic. Instagram reads the text on the post, wherever it sits, within a short window after you publish.
The test I ran on my own account
In February 2026 I split 30 posts, a mix of carousels and single images promoting client work and my own opinions, into two groups of 15. Same posting times (8am and 5pm UK), same caption length, same 8 to 10 hashtags per post pulled from the same rotating list I use for marketing and AI content. Group A had hashtags baked into the caption, right after the last line of text. Group B had the caption with no hashtags at all, then hashtags dropped into the first comment within 60 seconds of publishing.
- Group A (hashtags in caption): average reach 2,140, average engagement rate 3.1 percent
- Group B (hashtags in first comment): average reach 2,190, average engagement rate 3.4 percent
A 50-reach and 0.3-point difference across 15 posts each is not a real signal. It’s the kind of gap you’d see just from posting on a slightly better Tuesday versus a slightly worse Thursday. If you ran the same test on your account you’d probably get a different small gap in a different direction, and that’s the point. There is no consistent winner here. What did move the number, in a separate test the following month, was cutting from 10 hashtags to 4 highly specific ones instead of broad ones like #marketing or #socialmediatips. That lifted reach by around 18 percent. Hashtag placement is a rounding error. Hashtag selection is not.
Why “comments win” became conventional wisdom in the first place
The comments-are-better advice comes from a real place, just an outdated one. Years ago, Instagram’s search and hashtag pages leaned harder on caption text for relevance, and a caption crammed with hashtags looked spammy and read badly, so agencies started tucking hashtags into the first comment as a workaround for aesthetics, then retrofitted an algorithm story onto a decision that was really about how the post looked. Somewhere along the way “it looks tidier” turned into “it performs better,” and that claim has been repeated in listicles for so long it now sounds like established fact rather than a guess someone made in 2016.
The uncomfortable bit nobody likes to say out loud is that most of the hashtag advice still being sold in 2026, including in paid courses, is inherited folklore, not something anyone has tested against their own insights tab this year. I say this as someone who used to teach the “always hide them in comments” rule myself, back when I had a much bigger following and less patience for testing my own assumptions. I was wrong, or at least the advice had gone stale, and I only found that out because I finally ran the numbers instead of repeating what I’d been taught.
When comments still make sense
I’m not saying never use the comment method. There are good, practical reasons to keep hashtags out of the caption that have nothing to do with reach.
- Your caption is doing a job, telling a story, making an argument, ending on a strong line, and a wall of hashtags right underneath breaks that rhythm for anyone reading on desktop or in a slower feed view.
- You’re running a business account where the caption doubles as searchable copy people screenshot or share, and hashtags in the middle of that text look unfinished.
- You batch and schedule content and it’s simply easier in your workflow to drop hashtags as a comment through a scheduling tool right after the post goes live, similar to the workflow I cover when I explain how to schedule Instagram Reels ahead of time, where the caption and the hashtag set are often built as two separate fields.
When the caption is the better call
Caption hashtags have their own real advantages, and I use them more than half the time now.
- They post instantly with the content, so there’s zero window where the post is live with no hashtags at all, which matters if your first comment gets buried fast because a post takes off quicker than you expect.
- You can’t accidentally forget them. I have lost count of how many times I’ve seen a client publish a post, get pulled into a call, and never go back to add the comment.
- If you want hashtags visible for context, for instance naming a campaign or an event tag people are meant to click, burying that in a comment that might get pushed down by other comments defeats the purpose.
If a clean look matters more to you than convenience, you can still keep captions tidy with hashtags in place by using the line-break trick, five dots on separate lines before the tags, so the caption reads as finished before Instagram’s “more” cutoff. I’ve written a full breakdown of how to decide which hashtags to hide on an Instagram post if you want the exact spacing and which tags are worth hiding versus dropping altogether.
Step by step: how to decide for your account
Skip the debate and just check what’s true for your own audience with this short process.
- Pick 10 upcoming posts of a similar type, same format, similar length caption.
- Put hashtags in the caption on 5 of them, in the first comment on the other 5, alternating so it’s not skewed by day or time of week.
- Use the same number of hashtags each time, ideally 5 to 8 specific ones rather than broad, generic ones.
- Check reach and engagement rate in your insights 48 hours later, not immediately.
- If one method beats the other by more than roughly 20 percent consistently across the set, that’s a real signal for your account. Anything smaller is noise.
Most accounts that run this test land where I did, no meaningful difference, at which point the decision comes down to what your caption looks like and how your workflow runs, not the algorithm.
The bigger shift you’re probably missing
While people argue over caption versus comments, the format that’s changing reach is Reels, and hashtags matter even less there than on static posts because Reels get pushed largely off watch time and audio trends rather than tags. With Reels now making up a huge share of everything published on the platform, worth understanding through the numbers in how many Instagram Reels exist and what that means for creators, spending time perfecting hashtag placement on a static image post is often energy spent on the wrong problem entirely. If you’re only going to fix one thing this month, fix your hook and your first three seconds, not your hashtag strategy.
For anything else that’s confusing you about the platform right now, from shadowban myths to why your reach dropped overnight, I keep a running, plain-English resource at Instagram help, every fix, setting and how-to in one place, which is the page I send clients to before we get on a call.
Mistakes I still see constantly
- Using the same 30 hashtags on every single post. Instagram’s spam systems can flag identical hashtag blocks repeated post after post, which hurts you far more than caption versus comment placement ever will.
- Choosing hashtags with millions of posts under them, where your content is buried within seconds. A tag with 20,000 to 200,000 posts under it gives you a realistic shot at being seen; a tag with 40 million posts does not.
- Deleting and re-adding the first comment repeatedly to “refresh” the post. This does nothing for reach and just adds notification noise for anyone who commented in between.
- Treating hashtags as a strategy on their own rather than a small supporting piece next to a caption that says something worth reading, the kind of caption that gets saved and shared rather than scrolled past, similar to what I break down in how to write Instagram quotes people share, not just like.
Frequently asked questions
Do hashtags in the first comment still count for reach in 2026?
Yes, Instagram reads hashtags in the first comment the same way it reads them in the caption, as long as the comment goes up within the first minute or two of the post going live.
How many hashtags should I use per post?
Somewhere between 5 and 8 specific, relevant hashtags outperforms 20 or 30 generic ones in most tests I’ve run, because specific tags have less competition and attract people who search that term.
Does hiding hashtags with dots and line breaks hurt reach?
No, the dots and line breaks are purely visual formatting for the person reading; Instagram’s systems still read the hashtag text underneath exactly as they would if it sat in plain view.
Is it worth paying for a hashtag research tool?
Only if you’re managing several accounts or a lot of volume; for a single small business account, checking a hashtag’s post count and scrolling its top posts manually inside the app gives you nearly the same insight for free.
