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Creative

Instagram Reels Ads: How to Make Them Work (2026)

Biddyco

·

November 13, 2026

What Are Instagram Reels Ads?

Instagram Reels ads are full-screen, vertical video ads that play in between organic Reels. People can like, comment, save, share and skip them, the same as any other Reel.

They show up wherever people watch Reels: the Reels tab, and the full-screen Reels viewer people land in after tapping a Reel from Feed, Stories or Explore. You don't buy them on their own. They run through Meta Ads Manager as one placement in a normal Meta campaign, next to Facebook Feed, Stories and the rest.

Most brands never set up "a Reels campaign." Their ads end up in Reels because Advantage+ placements put them there. So the real question isn't how to buy Reels ads. It's whether the ads you already run look right in Reels.

Key Takeaways

  • Reels ads are 9:16 videos shown between organic Reels, and they can run up to 15 minutes.
  • Meta recommends 1440 x 2560, sound on, and captions. Licensed music, face and camera effects, GIFs and product tags aren't allowed.
  • Keep text and logos out of the top 14%, the bottom 35% and 6% on each side. The caption, buttons and call to action sit on top of the rest.
  • With Advantage+ placements on, Meta includes Reels automatically. A dedicated 9:16 file is how you control what people see there.
  • In our data, more than half of top-spending video ad spend went to ads with only a 9:16 file. Vertical is the default now, not a special version.

Instagram Reels Ad Specs

These come from Meta's Ads Guide for Instagram Reels. We've put Facebook Reels next to it, since most campaigns run both.

Instagram ReelsFacebook Reels
Recommended ratio9:169:16
Recommended resolution1440 x 25601440 x 2560
File typeMP4, MOVMP4, MOV, GIF
Length0 seconds to 15 minutesNo maximum
Max file size4 GB4 GB
Primary text shownAbout 44 charactersAbout 40 characters, 55 for the headline
SoundOptional, strongly recommendedOptional, strongly recommended
CaptionsOptional, recommendedOptional, recommended. No auto-captions

A few rules that trip people up on Instagram Reels specifically. Meta says Reels ads shouldn't contain:

  1. Licensed music. Use original audio or royalty-free tracks from Meta's Sound Collection.
  2. Face or camera effects.
  3. GIFs.
  4. Product tags.
  5. Reels published before October 15, 2021, if you're promoting an existing post.

The music rule catches a lot of creator content. A creator's Reel with a trending song usually can't run as an ad as is, so ask for a clean file with original audio.

For every other placement, our Meta ad specs guide has the full table.

The Reels Safe Zone

Reels has more interface on top of the ad than any other placement. The profile name, caption and call to action sit at the bottom. The like, comment and share buttons run down the right side.

Meta's guidance is to keep text, logos and other key elements out of:

  • The top 14% of the frame
  • The bottom 35%
  • 6% on each side

On a 1080 x 1920 file, that's roughly the top 269 pixels, the bottom 672 and 65 on each side. If the ad carries a disclaimer, Meta says to keep the bottom 40% clear instead.

This rule applies to text and logos, not footage. The video should still fill the whole frame. Just don't put the offer, the product name or the key line where Instagram will cover it.

Two more details from Meta's safe zone page:

  • Ads Manager will show you. Turn on the safe zone guardrail when you preview an ad, and the covered areas show in yellow.
  • Taller phones may crop. On screens taller than 9:16, Meta may zoom in, which cuts off anything outside the safe zone, or add black bars.

Put together, the safe zone leaves about half of a 9:16 frame for text. Keep on-screen text short.

How to Run Instagram Reels Ads in Ads Manager

Meta's setup steps are short:

  1. In Ads Manager, click Create and pick an objective: Awareness, Traffic, Engagement, Leads, App promotion or Sales.
  2. Set your budget, schedule and audience.
  3. Under Placements, leave Advantage+ placements on, and Meta includes Reels automatically. To pick placements yourself, open the placement settings and make sure Instagram Reels is selected.
  4. Add your identity, destination and creative, then preview the ad in the Reels placement before you publish.

Step 3 is where most brands should spend a minute. If you upload only a 4:5 or 1:1 file, Meta can still show it in Reels, adapting it to the placement. That's how you end up with a square video floating in a big empty band. Uploading a 9:16 version for Stories and Reels, through placement asset customization, lets you decide what people see instead of Meta.

Meta's aspect ratio page lists every ratio from 1.91:1 to 9:16 as supported in Instagram Reels, and recommends 9:16 for both images and video. So Reels can take statics too. A static built for 9:16, inside the safe zone, is a perfectly valid Reels ad.

How to Make Reels Ads That Work

Specs get the ad delivered properly. They don't make anyone watch it. Here's what we look for in a Reels ad, based on what we see across accounts and the data we've published.

1. Make it vertical first, not cropped later

In our 4:5 vs. 1:1 data, 56% of top-spending video ad spend went to ads with only a 9:16 file, and 37% went to ads with a 4:5 feed version. Vertical is where video spend lives now. Shoot and design for 9:16, then make the 4:5 version, not the other way around.

2. Win the first three seconds

The median viewer watched about 4 seconds of a video ad in our video length data, and that barely changed with the ad's length. Our hook rate benchmarks put the median at 20.9%, meaning about one in five impressions turned into a 3-second view.

In Reels, the ad sits between videos people are scrolling for fun, and skipping takes one swipe. Open with the thing that earns the next second: a question, a result, a problem people recognize, or the product doing something.

3. Look like a Reel

Meta's own Ads Guide suggests trends, challenges, tutorials and product education for Reels. In practice, the Reels ads that hold attention tend to look like something a person posted:

  • A creator talking to camera. Our UGC ads guide covers how we brief and shoot them.
  • A tutorial or demo. Show the product being used, start to finish.
  • A creator video with motion on top. UGC hybrid ads keep the person on screen and add type and graphics so the message lands with the sound off.
  • Native text formats. A POV line or a list over footage reads like organic content.

Run several of these, not ten edits of one video. Meta rewards creative diversity, and similar ads reach roughly the same people.

4. Plan for sound, and for silence

Meta calls sound "strongly recommended" for Reels ads, and recommends captions too. Both matter. Write the script so it works out loud, then burn in captions so it also works muted. On Facebook Reels, Meta doesn't support auto-captions at all, so the captions have to be in the file. Our UGC script template shows how we write for both.

5. Make it as long as the message needs

Instagram Reels ads can run up to 15 minutes, but that's a ceiling, not a target. In our video length data, the median video ad ran 29 seconds, and cost per result stayed within about 6% of each brand's median at every length. Short ads didn't win on cost, and long ones didn't either.

What does matter is order. Since most people leave early, put the product, the main benefit and the offer in the first 5 to 10 seconds.

6. Keep the copy short

Reels shows about 44 characters of primary text on Instagram and about 40 on Facebook before cutting it off. That's one short line. Put the point first and let the video do the rest. Our Facebook ad copy guide has more on writing for small spaces.

7. Run it from a creator's handle

Partnership ads let you run a Reels ad with a creator's handle in the header, while you control the budget and targeting. For creator-led Reels, it can be the most native version of the ad. It needs the creator's permission to run ads, which is separate from tagging you in an organic post.

Measuring Reels Ads

Judge Reels ads the same way as every other ad: on cost per purchase or lead. Reels is one placement inside a campaign, and with Advantage+ placements Meta decides where each ad shows, so a placement breakdown is a diagnostic, not a scorecard.

To see how Reels is doing, break your results down by placement in Ads Manager. Then look at:

  • Hook rate (3-second views ÷ impressions) for the opening.
  • Hold rate (ThruPlays ÷ impressions) for the rest of the video.
  • Cost per result in Reels vs. other placements, with enough spend to mean something.

If a Reels version has a weak hook rate, fix the opening first. The Meta Ads Statistics hub has the rest of our benchmarks in one place.

How We Make Reels Ads at Biddyco

We make creator-led UGC, motion ads, hybrids and statics built 9:16 first, with text inside the safe zones, plus the 4:5 and 1:1 versions each placement needs. Our US-based senior team writes the scripts and briefs, works with real creators, and tests several openings on the same ad to find the one that holds people.

We've done this across 100+ accounts spending $20M+ a month on Meta. Files land every 2 to 4 weeks, and we aim for one round of feedback. See our UGC ad agency work, or book an intro call if you want Reels ads made for your brand.

FAQ

What are Instagram Reels ads?

Instagram Reels ads are full-screen vertical video ads that play in between organic Reels. People can like, comment, save, share and skip them. They run through Meta Ads Manager as a placement in a normal Meta campaign.

What size should an Instagram Reels ad be?

Meta recommends 9:16 at 1440 x 2560 pixels, as an MP4 or MOV file up to 4 GB. Keep text and logos out of the top 14%, the bottom 35% and 6% on each side so the interface doesn't cover them.

How long can Instagram Reels ads be?

Up to 15 minutes, according to Meta's Ads Guide. Most performance ads are much shorter. In our data, the median video ad was 29 seconds, and length didn't predict cost per result.

Can I use music in Instagram Reels ads?

Not licensed music. Meta says Reels ads shouldn't contain licensed music and recommends original audio or royalty-free tracks from its Sound Collection. So a creator's organic Reel with a trending song usually needs a clean audio version first.

How do I put my ad on Instagram Reels?

Create a campaign in Meta Ads Manager and leave Advantage+ placements on, which includes Reels automatically. Or choose placements manually and select Instagram Reels. Upload a 9:16 version of the ad so it fills the screen.

What's the difference between Instagram Reels ads and Stories ads?

Both are full-screen and vertical. Stories ads appear between people's Stories, and Reels ads appear between Reels, alongside creator content. One well-made 9:16 ad can run in both. See our Instagram ad examples for both formats.

We handle your ad creative end to end

From concepting and scripting to creator sourcing, editing, and animation, we take care of it all. We build high-performing UGC, motion/animation, videos and statics that give you the creative diversity needed to scale to millions a month in ad spend. All while staying within your brand guidelines.

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