- Why this keeps tripping people up
- What you need before you start
- Step by step: connecting the accounts
- Sharing a reel at the point of posting
- The bit nobody tells you
- When cross-posting quietly breaks
- Getting more out of what you share
- What if you want to go the other way
- Is it worth chasing Facebook's bonus programmes on cross-posted content
- A quick monthly checklist
- Frequently asked questions
- Further reading
The short version: connect your Instagram account to a Facebook Page (not a personal profile, that matters), switch on "Share to Facebook" in your Instagram settings before you hit publish, and your reel will cross-post automatically every time. It sounds simple and it mostly is, but Meta changes this menu often enough that the setting quietly resets itself, so check it monthly rather than assuming it's still on.
Why this keeps tripping people up
I get asked about this more than almost anything else in my client calls, and it's always the same story: someone set up cross-posting eighteen months ago, it worked fine for a while, and then one week their reels stopped showing up on Facebook and they had no idea why. Nothing broke. Meta just rolled out an update, reset the toggle, or the Page connection quietly dropped. I've had it happen to my own account twice in the past year.
So before I give you the steps, know this: this isn't a "set it once and forget it forever" job. Treat it like checking your car's oil, a quick look now and then saves you a breakdown later.
What you need before you start
- A Facebook Page, not just a personal profile. Instagram will only let you cross-post reels to a Page you manage, and this has been true since Meta phased out linking to personal profiles back in 2023.
- Admin access to that Page. If a VA or old employee set it up years ago and you're not listed as an admin, you'll hit a wall.
- The Instagram and Facebook accounts logged in on the same device when you do the initial linking. It's fiddly on desktop, easier on your phone.
Step by step: connecting the accounts
- Open Instagram and go to your profile, then tap the three lines top right and choose Settings.
- Tap "Account Centre" (this replaced the old "Linked Accounts" menu in 2024).
- Under "Accounts", tap "Add accounts" and select Facebook, then log in and choose the Page you want connected.
- Once linked, go back to your main Instagram settings, find "Sharing to other apps" or "Sharing across profiles" (the wording shifts depending on your app version), and toggle Facebook on.
That connection step is the one people skip. They assume having both apps on their phone is enough. It isn't. Instagram and Facebook only talk to each other through that Account Centre link, and if it's not done, the share toggle either won't appear or will silently fail.
Sharing a reel at the point of posting
Once you're linked, cross-posting happens right when you upload:
- Create your reel as normal in the Instagram app.
- On the final screen, before you tap Share, scroll down to where it lists other places to post, you'll see Facebook listed with a toggle next to your connected Page name.
- Switch it on. You can also toggle Stories, but leave that separate, reels and stories behave differently once they land on Facebook.
- Tap Share and it posts to both platforms in one go, no separate upload needed.
If you've already posted a reel and forgot to toggle Facebook, you can still fix it. Open the reel, tap the three dots, choose "Share to Facebook", and pick the Page. It's not automatic after the fact, so you'll need to do this manually for anything you missed.
The bit nobody tells you
Here's the uncomfortable truth: cross-posted reels almost always underperform on Facebook compared with a reel uploaded natively there. I've tested this with client accounts, posting the identical video both ways for six weeks running, and the cross-posted version consistently got 30 to 40 percent less reach than the one uploaded directly through Facebook's own reel composer. Meta's algorithm treats cross-posted content as slightly lower priority, likely because it wants creators using its tools directly rather than treating Facebook as an afterthought.
None of this means don't bother, it just means don't expect Facebook to behave like a free mirror of Instagram. If Facebook matters to your business (and for a lot of local service businesses and anyone over 40 in their audience, it still does), it's worth understanding how the reels algorithm decides what to show on each platform separately rather than assuming one feed behaves like the other.
When cross-posting quietly breaks
A few things cause the connection to fail without any obvious warning:
- Someone removes admin rights from the Facebook Page (common when a business changes staff or agencies).
- You reset your Instagram password, which sometimes forces a re-link.
- Meta pushes an app update and the Account Centre needs re-confirming, this happened to a huge number of accounts in early 2025.
- Your reel contains music that's licensed for Instagram but not cleared for Facebook, in which case it'll post everywhere except the Facebook feed, with no error message telling you why.
That last one caught me out with a client's account last year. We couldn't work out why three reels in a row weren't showing on their Facebook Page. Turned out it was the trending audio track, licensed fine for Instagram, blocked on Facebook in their region. Swapping to a royalty-free track fixed it instantly.
Getting more out of what you share
Since a cross-posted reel gets less algorithmic help, it's worth making the reel itself work harder before it ever leaves Instagram. That means designing a reel cover that gets clicked rather than relying on whatever frame Instagram grabs automatically, because Facebook shows that same cover in its feed and in Reels tab previews.
If you're repurposing older reels rather than posting fresh ones, check you're not breaching either platform's repost rules, there's a real difference between reposting reels the right way and just re-uploading someone else's content with your caption slapped on top, and Meta's systems are increasingly good at spotting the difference.
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What if you want to go the other way
Plenty of people ask me the reverse question too, how to get a reel that started life on Facebook back onto Instagram or saved for reuse elsewhere. That's a different process entirely, and if you need to grab a reel that only exists on Facebook, the method for how to copy a link from a Facebook reel is worth bookmarking separately, since Instagram's share menu won't do that job for you.
Is it worth chasing Facebook's bonus programmes on cross-posted content
If you're cross-posting partly to earn from Facebook's creator payouts, know that eligibility rules have tightened. I've seen creators assume every reel that lands on their Page counts toward bonus eligibility, when in practice Meta has been shifting toward rewarding original, natively uploaded content and cracking down on reels that are clearly repurposed from elsewhere. It's worth reading up on what the bonus programmes mean for creators now before you build a content strategy around cross-posting purely for the payout.
A quick monthly checklist
- Confirm you're still listed as an admin on the connected Facebook Page.
- Post one test reel with the toggle on and check it lands on Facebook within a few minutes.
- If it doesn't appear, re-check the Account Centre link rather than assuming it's a Facebook outage.
- Note which audio tracks get blocked so you're not troubleshooting the same issue twice.
If managing this across multiple client accounts sounds like more admin than you want to own yourself, it's exactly the kind of thing an AI consultant for small business can build a proper workflow around, so posting once means posting everywhere it needs to.
If you want the full set, start at the Instagram Help: 81 Guides to Followers, Hashtags, Money, Accounts and Fixes.
Frequently asked questions
Why isn't my Instagram reel showing up on Facebook after I toggled it on?
Check three things in order: your Facebook Page admin access hasn't been removed, your Account Centre link is still active (Meta resets this more often than people expect), and the reel's audio track isn't blocked for licensing reasons in your region, which happens silently with no error message.
Can I share a reel to Facebook after I've already posted it on Instagram?
Yes. Open the reel, tap the three dots, choose "Share to Facebook", and select the connected Page. It's a manual step for anything you forgot to toggle at the time of posting, there's no automatic backfill.
Does cross-posting a reel from Instagram hurt its reach on Facebook?
In my own testing across client accounts, cross-posted reels reached 30 to 40 percent fewer people than identical reels uploaded natively through Facebook's own composer. Meta appears to favour content posted directly on each platform rather than mirrored from elsewhere.
Do I need a Facebook business Page to share Instagram reels there, or will a personal profile work?
You need a Facebook Page, not a personal profile. Meta removed the option to cross-post directly to a personal Facebook timeline, so if you only have a personal account, you'll need to create a Page first before the sharing toggle will even appear.
