Last updated: 1 October 2026.
How the Instagram algorithm works in 2026 comes down to one idea: there isn’t a single algorithm. Instagram runs separate ranking systems for Feed, Reels, Stories and Explore, and each one predicts what a specific person is most likely to watch, like, send or save. The three signals Instagram has publicly singled out as most important are watch time, likes per reach and sends per reach.
This guide breaks down what each surface rewards, what Instagram has officially said about originality and reposting, how the new “Your Algorithm” controls change things for viewers, and how to check whether your account is eligible to be recommended at all. You’ll finish with a practical checklist you can run before every post.
Is there one Instagram algorithm?
No. Instagram has been clear that it uses a variety of algorithms, classifiers and processes, each with its own purpose and tuned to the way people use a particular part of the app. In its official Instagram Ranking Explained post, the company describes different signals for Feed, Stories, Explore and Reels, listed roughly in order of importance.
So a post can do brilliantly on one surface and quietly on another: a carousel your followers love may never reach Explore, while a Reel can find strangers even if followers ignore it.
How the Instagram algorithm works on each surface
Each surface asks a different question. Feed and Stories mostly ask “which accounts you follow do you care about most?”, while Reels and Explore ask “what might you enjoy from accounts you don’t follow yet?”. Here is a summary based on Instagram’s own explanation.
| Surface | Main job | Key signals Instagram has described |
|---|---|---|
| Feed | Rank posts from accounts you follow (plus some recommendations) | Your activity (likes, shares, saves, comments), information about the post (popularity, timing), information about the poster, your history of interacting with them |
| Stories | Order the Stories tray | Viewing history, engagement history (likes, DMs), closeness to the account |
| Explore | Recommend content from accounts you don’t follow | Popularity of the post, your activity in Explore, your history with the poster, information about the poster |
| Reels | Entertain, largely with content from accounts you don’t follow | Your activity (likes, saves, reshares, comments), your history with the poster, information about the Reel (audio, visuals, popularity), information about the poster |
Feed
Feed ranking leans heavily on relationships. If someone regularly likes, comments on or messages you, your posts are more likely to appear near the top of their Feed. Timing still plays a role, so posting when your audience is actually online helps; our guide to the best time to post on social media shows how to find your own window.
Stories
Stories are the most follower-centric surface. Instagram looks at whether a viewer habitually watches your Stories, whether they react or reply, and how close the relationship appears. That is why interactive stickers and replies tend to keep you at the front of the tray: each interaction strengthens the signal.
Explore
Explore is about discovery, so popularity signals carry more weight here than in Feed. Instagram looks at how quickly and how much a post is being liked, commented on, shared and saved, then matches it to people whose past Explore activity suggests they will be interested.
Reels
Reels is built to entertain, and most of what you see comes from accounts you don’t follow. Instagram says it predicts how likely you are to reshare a Reel, watch it all the way through, like it and go to the audio page, which is often a sign you might make your own version. If you are weighing up where to put your short-form effort, see Instagram Reels vs TikTok.
Which signals matter most in 2026?
Instagram’s head, Adam Mosseri, has named three: watch time, likes and sends. In January 2025 he advised creators to pay close attention to average watch time, likes per reach and sends per reach, as reported by Social Media Today.
- Watch time. How long people keep watching. A strong opening and a tight edit both help.
- Likes per reach. The share of people who saw the post and liked it. Mosseri said likes matter slightly more for reaching your existing followers (connected reach).
- Sends per reach. How often people share the post by DM. Sends matter slightly more for reaching people who don’t follow you yet (unconnected reach).
Notice the “per reach” part. Instagram is judging the proportion of viewers who respond, not raw totals. A Reel seen by 2,000 people with 80 sends is a stronger signal than one seen by 20,000 with the same 80 sends. This is also why a healthy engagement rate is a better goal than chasing big follower numbers alone.
What about comments and saves?
They still count. Comments and saves are part of the “your activity” signals Instagram lists for Feed and Reels. They simply weren’t among the three Mosseri highlighted as the most important. Our guide on how to get more comments on Instagram covers practical prompts that work.
How does Instagram treat reposted and unoriginal content?
Instagram favours original creators and restricts accounts that mainly repost other people’s work. When it finds identical content, it aims to recommend the original rather than the copy, and accounts that repeatedly post unmodified content from others can lose eligibility for recommendations.
The rules tightened again in 2026. On 30 April 2026, Instagram extended protections that already applied to Reels so that they also cover photos and carousels, according to TechCrunch’s report on the aggregator crackdown. Key points:
- Accounts that regularly repost content they didn’t create are no longer eligible for recommendations across the app.
- Low-effort edits, such as adding a watermark or changing the speed, don’t make content original.
- Screenshots of other people’s posts don’t count as original, even with the username visible as credit.
- Materially edited content with meaningful additions, and memes where you add your own humour or commentary, can qualify.
- People who already follow an aggregator can still see its posts; the penalty applies to recommendations.
The practical lesson: repurpose your own material freely, but when you use someone else’s, add something real, such as commentary, context, a reaction or a new edit.
What is “Your Algorithm” and does it affect creators?
“Your Algorithm” is a viewer control that shows the topics Instagram thinks you’re interested in and lets you ask for more or less of each. Instagram introduced it for Reels, and Instagram’s announcement explains that people can see and adjust the interests shaping their recommendations.
In April 2026 it expanded to Explore and began rolling out to English-language users globally, with changes syncing across Reels and Explore. For UK creators, this means viewers can now actively opt into (or out of) topics. Content that clearly signals its subject, through on-screen text, captions and a consistent niche, is easier for the system to match to people who have asked for that topic.
How to check if your account can be recommended
Open Account Status in your settings. For professional accounts, Instagram shows whether your content is eligible to be recommended to people who don’t follow you, and gives examples of posts that may go against its Recommendations Guidelines.
Instagram distinguishes between two rulebooks:
- Community Guidelines decide what is allowed on Instagram at all. Break them and content is removed.
- Recommendations Guidelines decide what can be suggested to non-followers in places like Explore, Reels and Feed recommendations. Content can stay up but not be recommended.
Instagram says repeated breaches of the Recommendations Guidelines can make an account temporarily ineligible for recommendations. From Account Status you can edit or delete flagged posts, or tell Instagram you disagree so a reviewer can take another look. Instagram has said it doesn’t intentionally “shadowban” people; if your reach has dropped, our shadowban definition explains what people usually mean by the term and what else could be going on.
How can you test content without hurting your reach?
Use trial reels. Instagram launched them in December 2024 so eligible creators can show a Reel to non-followers first, without it appearing on their profile grid or in followers’ feeds.
According to Meta’s trial reels announcement, performance data such as views, likes, comments and shares appears after about 24 hours. You can also choose to have a trial shared automatically with your followers if it performs well based on its views in the first 72 hours.
Instagram algorithm checklist for 2026
Run through this before you publish. It lines your content up with the signals Instagram says it values.
- Win the first seconds. Open with the payoff, a question or a bold visual. Weak openings kill watch time.
- Make it worth sending. Ask yourself: who would someone forward this to? Useful tips, relatable humour and local UK references travel well by DM.
- Measure per reach, not totals. In Insights, compare likes and shares against accounts reached. Our free engagement rate calculator makes this quick.
- Keep it original. No watermarks from other apps, no reposted screenshots. If you use others’ content, transform it.
- Signal your topic clearly. Use on-screen text, a descriptive caption and keywords people search for, plus a few relevant hashtags.
- Build relationships for Feed and Stories. Reply to comments and DMs, use stickers, and post Stories consistently so followers keep interacting.
- Test with trial reels. Try new formats on non-followers before committing your main grid.
- Check Account Status monthly. Fix any recommendation issues before they cost you weeks of reach.
For a wider growth plan built around these principles, read our guide on how to get more Instagram followers.
Frequently asked questions
Does the Instagram algorithm favour Reels over photos?
Not by rule. Reels and Explore are designed for discovery, so Reels often reach more non-followers, but carousels and photos still rank in Feed, especially with people who already interact with you. Pick the format that best suits the idea.
Does posting more often help the Instagram algorithm?
Only if quality holds up. Instagram ranks individual posts on how people respond, so a weak post published just to “stay active” can drag your per-reach numbers down. Consistency matters more than volume.
Why do sends matter so much?
A send is a strong signal that someone found your post valuable enough to show a friend. Mosseri has said sends per reach matter slightly more than likes when Instagram is deciding whether to show content to people who don’t follow you.
Can I reset my own Instagram recommendations?
Yes. Viewers can use “Your Algorithm” to adjust the topics shaping Reels and Explore, and Instagram also offers an option to reset suggested content in its settings. Creators can’t control this for their audience, which is why clear topic signals help.
Is my account shadowbanned if my reach drops?
Probably not. Reach naturally fluctuates with topic, format and competition. Check Account Status first: if your content is eligible for recommendations, the cause is more likely the content itself or timing.
The algorithm rewards content people genuinely want to watch and share, so start there. If you want a little extra momentum behind your best posts, a boost of Instagram shares can add social proof while your content does the heavy lifting.