Instagram Reels ads: Facebook Reels ads briefed for the creator who films them

Meta publishes the specs in its ads guide, and they changed more than most blog posts reflect. These are the figures from the Instagram Reels and Facebook Reels video pages of the Meta Ads Guide, read on 27 September 2026.

Two things in that table matter more than the rest. The length ceiling is gone: an Instagram Reels ad can legally run for minutes, so the reason to keep yours short is attention, not a rule. And the two placements do not agree with each other on file types or text length, which is why a single export built for one can be trimmed or rejected on the other. Write the primary text to 40 characters and it fits both.

Keep roughly the top 14%, the bottom 35% and 6% on each side of the frame free of text, logos and anything the viewer has to see. That is Meta's own figure from the Reels ads guide, and it exists because the profile icon, caption and call-to-action button sit on top of your video in those areas. On a 1080 x 1920 frame that leaves a working area from about pixel 270 to pixel 1250 vertically.

There is a stricter number most guides miss. Meta's help article on text overlays and the Safe Zone says that if you include disclaimers on a Reels ad, you should leave the bottom 40% free. That matters for supplements, finance, telehealth and anything with a results line, because the disclosure is exactly the text brands tend to park at the bottom of the screen.

The same article notes that on phones taller than 9:16, Meta may zoom the creative to fill the screen, which crops whatever sits outside the safe zone. So the safe zone is not a guideline for how the ad looks in Ads Manager preview. It is the only part of the frame you can count on being visible. The brief writes the on-screen text as short lines meant for the middle of the frame, which is also where the viewer is looking.

Meta's Instagram Reels ads guide lists the exclusions plainly: reels published before October 15, 2021, licensed music, media that has a face or camera effect, media with a GIF, media with product tags, and videos that contain edit lists or special boxes in the file container. The licensed music line is the one that catches UGC. Meta recommends original audio or royalty-free tracks from its Sound Collection instead.

In practice that rules out the most common creator habit, which is cutting to a trending song. A creator's organic Reel can use a licensed track from the in-app library. The same video promoted as an ad cannot rely on it. The fix is simple if it is decided up front: the creator talks, the product makes its own sound, or the editor lays a royalty-free bed under the voice. It is expensive if it is discovered after delivery, because the edit was cut to the beat of a song you now have to remove.

The face and camera effect exclusion is the other trap. Filters that come from the Instagram camera are part of what makes a Reel look native, and they are also what Meta asks you to leave out of Reels ad media. The brief specifies a clean capture and leaves effects to the edit.

Shorter than the rules allow. Meta permits Instagram Reels ads up to 15 minutes and sets no ceiling on Facebook Reels, but a Reels viewer decides in the opening seconds whether to keep watching, and every second after the product appears is a second they can swipe. The brief targets 15 to 30 seconds for a direct response cut, with the product on screen early and the payoff before the video loops.

We do not quote a view-through or conversion benchmark for a particular length, because we have not measured one and the numbers in circulation are mostly from ad tool vendors describing their own customers. What holds regardless of the account is the arithmetic of attention: if your message needs 40 seconds, the viewers you lose between second 5 and second 40 never hear the offer. Cut the message, not the pacing.

If you run the same creative on TikTok or YouTube Shorts, the length logic is the same and the file mostly carries over. See our briefs for UGC for TikTok ads and YouTube Shorts ads for where the platforms differ.

Write it from the frame in, not from the message out. A Reels ad is watched on a phone, often with the sound off, by someone who did not ask to see it. That fixes the structure the brief uses for a 25-second cut.

The hook carries most of the weight, which is why the brief gives you three versions of it. If you want to go further on openings, our ad hooks brief writes hook variations on their own, and the video ad script page covers the full script structure across placements.

Upload it yourself when you want control, boost or run it through the creator's handle when you want the social proof. Meta's help center describes both routes: new creative uploaded at the ad level, or an existing reel selected with Use existing post. An existing reel keeps its likes and comments. An uploaded ad starts at zero but lets you swap hooks and test versions without asking anyone.

The third route, running the ad from the creator's account as a partnership ad, is where cost appears that nobody budgets for. Creators usually charge for that access separately from the video. We read published rates in our breakdown of UGC whitelisting fees, and the terms belong in the agreement before filming. See UGC usage rights for the clauses that decide whether you can run the video as an ad at all.

One label change is worth knowing when you brief a creator who has not run ads before: Meta's help center now says ads that used to carry a "Sponsored" label display an "Ad" label instead, rolling out gradually.

Yes, if you ask the creator for the right file. A video downloaded from TikTok carries the TikTok watermark and, usually, a trending sound, and both are problems on Reels: the watermark reads as recycled content, and the sound is almost always licensed music, which Meta's Reels ads guide says the ads should not contain. The clean route is to get the unwatermarked export and the voice track separately, then lay royalty-free audio under it.

The layout needs a second look too. TikTok and Reels both put their interface over the bottom of the frame, but not in the same places, so on-screen text positioned for one can land under a button on the other. Meta's own guidance is to keep the top 14% and bottom 35% clear, which is a safe choice for both platforms. Ask for the file, the audio stems and a text-free version in the same agreement, because a creator who has already deleted the project cannot give you any of them later. Our UGC raw footage brief covers how to ask for those files up front.

The brief writes one vertical master meant to travel, with the text lines kept short so they can be placed per platform in the edit, and notes the audio rule so the creator does not build the cut around a song.

Meta publishes no rate card for Reels. Ads are sold by auction, so the media cost depends on your audience, objective, bid and the competition for that audience on the day, and any single CPM figure you read is somebody else's account. The part of the cost you actually control before launch is the creative, and on Reels the creative decides whether the auction rewards you or charges you more for being skipped.

That creative cost has two lines. One is the creator: the fee for filming, plus any separate fees for usage rights and running the ad through their handle. The other is the brief, which is usually a strategist's time or an agency's retainer. The brief here costs nothing for your first one without an account, and Pro is $49 a month for unlimited briefs, so you can write a separate brief for each hook you want to test instead of one brief for the whole month. For the same logic applied to all Meta placements, see UGC for Meta ads.