How to crosspost on Reddit (and when a brand should not)
A practical crosspost playbook for brand teams: how the feature actually works, the subreddit rules that override it, and where it costs you trust.
Originally published January 27, 2025
Crossposting is one of the most misunderstood features on Reddit. For an individual user it is a one-click way to share a great post with a wider audience. For a brand, it is a feature that looks like distribution and behaves like a trip-wire — because the subreddits where a brand can actually move opinion are precisely the ones that disallow it.
This guide covers how the mechanic works, what it costs when it goes wrong, and the cases where a thoughtful repost outperforms a crosspost every time. Soar is a community marketing agency that has run 4,200+ community campaigns across 280+ brands since 2017, and the patterns below come from the campaigns we have seen succeed and the ones we have seen disappear inside an hour.
What crossposting actually does
A crosspost is Reddit's official mechanic for sharing an existing post into another subreddit while keeping the original author, title, and vote thread visible. It is not a copy-paste. The crosspost links back to the source thread, displays an "OP" badge for the original poster, and treats the second subreddit's votes as a separate signal rather than rolling them into the original score.
This matters for two reasons. First, it preserves attribution — Reddit cares about who said something first, and crossposting is the canonical way to amplify someone else's contribution without claiming it. Second, the post inherits the original's media format. A native video stays a native video; an image carousel stays a carousel. Linking back to the source thread from a new post breaks both behaviors.
For a brand, that attribution layer is the catch. When you crosspost your own content, every subreddit you land in sees that the post originated elsewhere. In a community that explicitly bans "reposted promotional content," that origin is visible and disqualifying.
Why crossposting matters more in 2026 than it used to
Reddit's licensing deal with Google and the platform's deeper integration with AI training data have changed what a single thread is worth. A thread that ranks for a high-intent query now also feeds Google AI Overviews and ChatGPT's retrieval set for the same query. A crosspost that splits the conversation across two threads splits the citation surface too.
A consolidated thread with 400 comments will be cited by an LLM. Two parallel threads with 200 comments each, even if the total upvotes are higher, often will not be — because models prefer the densest single source. We see this play out monthly when clients ask why a competitor's smaller thread is the one ChatGPT names.
So the editorial choice is not "should we crosspost or not." It is: where do we want the canonical conversation to live, and are we willing to let the other subreddits send traffic back to that canonical thread rather than mirror it.
How to crosspost on Reddit, step by step
The feature lives in roughly the same place on every Reddit surface: desktop web, old.reddit.com, mobile web, and the official apps. The flow:
Open the source post. Below the title, look for the share icon or the three-dot overflow menu. Older interfaces show "Crosspost" as a primary action; newer ones tuck it inside the overflow.
Select the target subreddit. Reddit will only let you complete the crosspost into a subreddit that allows them. If the option is greyed out, the destination has crossposting disabled at the AutoModerator level.
Write a fresh title. The original title carries over by default, but you can replace it. For brand teams this is the place to do real work — a title that fits the target subreddit's tone is the difference between 200 upvotes and a quiet death.
Confirm flair and tag requirements. Many subreddits require post flair, NSFW tags, or specific topic prefixes. The crosspost flow will not enforce these for you; the AutoModerator removal afterwards will.
Post and stay in the thread. A crosspost without an author replying in comments behaves like an abandoned share. Reply to the first three comments within an hour or the post will rank on velocity only.
The mechanic is the easy part. The judgment about whether to use it is where most brand campaigns fail.
When crossposting works for a brand, and when it does not
The honest version: crossposting works when you are amplifying content you did not author. It is the right tool when a customer posts a review in r/SaaS and a moderator-approved version of that thread belongs in r/Entrepreneur too. It is the wrong tool when your own brand account is trying to recycle a post across communities — because every receiving subreddit will see the same OP, the same post body, and the same handle behind it.
Three patterns we see work:
Customer-authored amplification. A user posts about your product in a community where you are not the brand voice. With permission, you crosspost their thread into a community where it belongs. The credit stays with them; the visibility extends.
Cross-community AMA roll-ups. You host an AMA in your primary subreddit and crosspost the final thread into 2–3 adjacent subreddits as a "this happened, here is the transcript" reference.
Case studies and data releases. A long-form post in r/marketing belongs in r/SEO. Different audiences, same content, attribution preserved.
Three patterns we see fail:
Same-day fan-out from a brand account. Posting once and crossposting four times within the hour reads as coordinated promotion and triggers AutoModerator rules in roughly a third of brand-relevant subreddits.
Cross-vertical recycling. A finance post crossposted to a parenting subreddit will get downvoted on relevance no matter how strong the original thread is.
Recovering a dying post. If the source thread is at zero, crossposting it does not give it a second chance. It signals you noticed the post was failing.
If you are choosing between a crosspost and a fresh post written for the target subreddit, the fresh post wins almost every time. The crosspost is a shortcut; the rewrite is the work.
Subreddit rules and AutoModerator: where crossposting actually breaks
The crosspost button is a Reddit-platform feature. Whether it works in a given subreddit is decided by the subreddit's moderators through AutoModerator YAML or the rules surface.
The most common rule patterns that block or penalize crossposting:
type: crosspostrules that auto-remove any incoming crosspost."OP-only" rules in branded subreddits that require posts to be authored fresh by the original poster.
Domain rules that catch links back to the source post and remove based on the originating subreddit (we have seen r/SaaS quietly filter crossposts from r/Entrepreneur for this reason).
Karma and account-age gates that the crosspost flow does not surface — your post will appear to submit and then sit in the modqueue invisibly.
The practical implication: before crossposting into a subreddit, read its rules and skim its AutoModerator-visible config. If both look clean, search for "crosspost" in the subreddit's recent removed-post log via a tool like Reveddit. If you see crossposts being silently removed there, the button will lie to you.
For a brand team running 10–15 subreddits simultaneously, the cost of getting this wrong is account-level: enough silent removals and the account itself gets shadow-suppressed. That is the kind of damage we get hired to clean up, and the kind that a 15-minute rule-check would have prevented.
Crosspost vs repost vs fresh authored post: the brand decision
Most brand teams flatten three different actions into "sharing the content again." They behave very differently on Reddit.
| Action | What it is | When it fits | Risk |
|---|---|---|---|
| Crosspost | Native Reddit feature, attribution preserved | Amplifying someone else's content into an adjacent subreddit | Subreddit-level rules; OP attribution; vote split |
| Repost | New post with the same or similar content under your account | Almost never for brand accounts; only when subreddits are non-overlapping audiences | "Reposter" stigma; spam-filter flagging; duplicate-detection in modqueue |
| Fresh authored post | Net-new post written for the specific subreddit | Default for brand-led distribution across multiple communities | Time cost; needs platform-native voice in each subreddit |
Across the brand campaigns we have run, fresh authored posts beat crossposts on every measurable outcome — upvote velocity, comment quality, downstream traffic, and AI citation pick-up — by roughly 2–3x. The exception is the customer-amplification case described above, where crossposting is the only respectful option.
Operational guardrails before you crosspost
The five-minute checklist that prevents most of the failures we see in the field:
Confirm the source thread is healthy. Net positive score, no controversial badge, no mod warnings in the comments. Crossposting a stale or contested thread doubles the exposure of a problem.
Read the target subreddit's rules with "crosspost" in mind. If the word does not appear in the rules and you cannot find a recent crosspost on the front page of the subreddit, treat the feature as disabled until proven otherwise.
Rewrite the title for the destination. Default Reddit behavior copies the original title; default brand behavior should be to replace it with one that fits the new community.
Time it to local activity. Crossposting at the peak of the source subreddit's activity is the wrong instinct. Crosspost when the destination subreddit is at its peak, which is usually 3–6 hours earlier or later.
Stay in the thread for the first 60 minutes. Reply to the first three comments. If the post does not get comments in the first hour, do not bump it with edits — let it run.
For a brand running a sustained Reddit program, the same checklist applies to every crosspost decision, every time. Skipping it once is how a campaign moves from "we are showing up in the right communities" to "every subreddit has us on a shadow list."
What this means for your Reddit program
Crossposting is a feature worth understanding because it gets used wrong constantly. It is not a distribution lever. It is an attribution mechanic with a button on it.
The strategic version: decide in advance which one subreddit you want to own the canonical conversation, write the strongest version of the post there, and use Reddit's other surfaces — AMAs, fresh authored posts in adjacent subreddits, organic comments in related threads — to point back to it. Crosspost only when you are amplifying someone else's voice into a community where they would be welcome.
Most clients come to us after they have already burned a few weeks crossposting their own brand content across 8 subreddits and watching three of them ban the account. The fix is rarely about crossposting itself. It is about treating each subreddit as its own room with its own rules, which is the harder version of the work.
Is crossposting against Reddit's rules?
No, crossposting is a built-in Reddit feature. But individual subreddits decide whether to allow it. Many brand-relevant subreddits — especially in the SaaS, fintech, and DTC verticals — disable crossposts via AutoModerator. Check each subreddit's rules and recent removed posts before you assume the button works.
Does crossposting count as spam?
Crossposting itself does not count as spam under Reddit's content policy. Crossposting the same post from a brand account into 5+ subreddits in a short window does, and Reddit's spam filter is calibrated to catch exactly that pattern. The 9 rule — nine non-promotional contributions for every promotional one — still applies whether the promotional post is a crosspost or a fresh one.
Will a crosspost share karma with the original?
No. The crosspost gets its own upvote and comment count. The original's score is unaffected. This is by design — Reddit treats each subreddit's vote signal as separate so that community context shapes ranking.
Can I crosspost someone else's post without permission?
Technically yes, the feature does not require permission. Reddiquette and several subreddits' rules say you should ask, especially for brand-adjacent content where attribution matters. For a brand team specifically, crossposting customer content without permission is the kind of small move that turns into a public callout post in r/legaladvice or the customer's home subreddit.
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