The Instagram and Facebook sync sits in two separate places, and most people switch off the wrong one. To stop your posts crossing over, open Instagram, go to Settings, then Accounts Center, then Connected experiences, then Sharing across profiles. Open the pairing that is causing the trouble and turn Automatically share off. Your posts stay where you put them after that. The other place is the Accounts Center account list itself, where you can remove the Facebook account outright. That option ends shared logins and Page connections you may still be using, so it deserves a proper look before you touch it.
Table of Contents
The switch that stops posts crossing over
Meta files this under connected experiences. Accounts Center is shared between the two apps, so you can reach it from either one. From Instagram: your profile, the menu, Settings and privacy, then Accounts Center near the top under the Meta heading. Tap Connected experiences, then Sharing across profiles. You will see a row for each pairing you have set up. Open the one you want and turn off Automatically share.
If your menu looks nothing like that, and Meta rearranges this area more often than anyone would like, type “cross-posting” into the search box at the top of Instagram settings. It drops you straight onto the right screen. That shortcut has outlived several redesigns, which tells you something about how stable the menus themselves are.
While you are in there, notice that sharing is directional. The pairing that pushes Instagram to Facebook is a separate row from the one that pushes Facebook to Instagram, and switching off the first leaves the second running along quite happily. Plenty of people fix the direction that annoyed them, see one clean post, and stop looking.
Feed posts, reels and stories each carry their own toggle
This is where the fix usually falls apart. Sharing is not a single setting with a single state. Feed posts have their own. So do reels. Stories keep a third one hidden behind a long press. Switching off the toggle you can see does nothing to the ones you cannot, so you turn off feed sharing on Monday, post a reel on Tuesday, and there it is on Facebook again.
Sitting on top of the account-level settings there is a per-post layer. The final share screen in Instagram has an “Also share to” row with the destination listed underneath it. That one applies to the post in front of you and it remembers its last state, which is convenient when you want it on and maddening when you do not.
Stories are the fiddly ones. Press and hold the Your Story button instead of tapping it, and a destination list appears with your Facebook story on it. Untick it there. For reels, the share row sits low on the posting screen just above the buttons, in the exact spot your thumb flies past when you are in a hurry.
So test it properly. Switch off the account-level setting, then put out one photo, one reel and one story and watch where each of them lands. Fifteen minutes of that beats another month of unwanted crossposts.
Removing the account from Accounts Center is the heavy option
Now for the move everybody reaches for. Two accounts are talking to each other, so cut the connection between them and the problem goes away forever. It sounds final in the best possible way. You were expecting me to recommend it, right? Please do not start there.
Here is what that button touches. Your name, username, profile picture and avatar stop syncing across the profiles. Logging in with accounts stops working, which matters enormously if you have been signing into Instagram with your Facebook credentials and have never set an Instagram password. Meta will prompt you to create one. If the email address on that account is old or dead, you have just made a future account recovery far harder than it needed to be.
Then there is the business side, and this part is worth reading slowly. If your Instagram account is connected to a Facebook Page, and that connection is what gets you into Ads Manager or the Page inbox, pulling the account-level link apart can take the access with it. If your personal Facebook profile is the only admin route into a Page, be very careful indeed. Add a second admin to the Page first. Confirm you can reach the ad account through a business portfolio and not only through the personal connection. Do all of that before you remove anything, because recovering access to a Page you no longer administer is a support queue with no guaranteed exit.
Removing the account is the right call in one situation. You want the two accounts to have nothing to do with one another, permanently, and you have checked that nothing else depends on the link. A creator separating a private Facebook profile from a work Instagram account fits that description. If you only want your holiday photos to stop turning up on your aunt’s feed, the sharing toggle is plenty.
Why the crossposts came out wrong anyway
A lot of people who want the sync off want it off because the results were embarrassing. Worth explaining, because it also tells you which posts are safe to send across on purpose later.
- Captions and hashtags do not travel well. A caption written for Instagram, with a stack of hashtags at the bottom, arrives on Facebook looking like someone shouting keywords at a wall. Facebook’s feed does very little with hashtags.
- Music gets stripped. Meta owns both apps, so the licence obviously follows the video across. It does not. Audio cleared for use on Instagram is cleared for Instagram, and business or creator accounts are restricted further because Meta treats their content as commercial. A reel that sounded fine when you posted it can land silent, or lose its audio days later.
- Framing gets cropped. A carefully composed vertical post can lose its edges on the way over.
- It lands on a personal profile. This is the one that does actual damage. Unless a Page has been set as the destination, sharing can default to your personal timeline, and business content goes out under your own name to family and old schoolfriends.
Sending a post to a specific Page on purpose
With automatic sharing off, you can still push individual posts across and control exactly where they land. In the same Sharing across profiles screen, opening a pairing lets you choose the destination. If you have a personal Facebook profile plus one or more Pages you administer, they show up as options. Pick the Page, and shares from that Instagram account go there until you change it again.
For a single post rather than a standing rule, use the “Also share to” row at the moment of posting and switch on only the destination you want. Same list, applied once.
Two conditions have to be true before a Page appears as an option. Your Facebook profile needs an admin role on it, and the Instagram account needs to be a business or creator account. When a Page is missing from the list, the admin role is nearly always the reason, so check that on Facebook before you assume the feature is broken.
Confirming it stayed off
Settings in Meta apps have a habit of coming back. An app update, a newly connected Page or a fresh login can flip a sharing toggle, and nobody sends you a notification when it happens.
Build a small habit instead of trusting the switch. Once a month, open Sharing across profiles and read the pairings. After any change to your Page setup, read them again. And if posts keep crossing when every toggle is off, look outside Meta entirely. A scheduling tool with publishing permission on both accounts, an old automation someone set up years ago, or a colleague posting through a shared login will all produce the same symptom, and no Instagram setting can stop them. You have to go into the tool itself and take the second destination off.