How to Advertise on Instagram: A Guide for UK Businesses

Instagram has grown from a photo-sharing app into one of the most commercially powerful advertising platforms in the UK. With millions of daily active British users and a format that rewards strong visuals, it’s an effective channel for businesses that can communicate through images and short video.

Because Instagram is owned by Meta, it shares its advertising infrastructure with Facebook. You manage Instagram ads through Meta Ads Manager and use the same targeting, budgeting, and optimisation tools. This means there’s very little extra to learn if you already advertise on Facebook — but there are important differences in format and creative approach worth understanding.

Instagram Ad Formats Available to UK Businesses

Instagram offers several distinct ad formats, each suited to different objectives. Photo ads appear as single images in the feed or Stories — clean, simple, and effective for product showcases and brand imagery. Video ads can run in the feed, Stories, or Reels, with length varying by placement. Feed videos can be up to 60 minutes, but shorter is almost always better — most users decide within the first three seconds whether to keep watching.

Carousel ads display multiple images or videos in a swipeable format, excellent for showing a range of products or telling a sequential story. Collection ads pair a hero image or video with a product grid beneath, making them ideal for e-commerce businesses. Stories ads occupy the full screen between organic Stories, delivering an immersive, distraction-free experience.

Reels ads have grown significantly in reach and engagement. Short, entertaining videos in the Reels format tend to perform well, particularly for younger audiences. Instagram Shopping ads, available to eligible UK businesses, allow users to tap through directly to a product page, reducing friction in the purchase journey.

Targeting and Creative on Instagram

Targeting on Instagram uses the same Meta audience tools as Facebook: interests, demographics, behaviours, custom audiences, and lookalikes. However, Instagram’s user base skews slightly younger, so consider whether your audience is most active on Instagram versus Facebook when allocating budget.

Creative quality is more important on Instagram than almost any other platform. The feed is competitive and users scroll quickly. Ads that look like polished editorial content or authentic, unpolished video both tend to outperform obvious ‘banner ad’ style graphics. Native-looking content — visuals that feel like they belong in the feed — consistently delivers stronger engagement and lower costs per result.

For Stories and Reels, design for vertical format (9:16 aspect ratio). Include captions or text overlays, as many users watch video with sound off. Hook viewers in the first one to two seconds — if your opening frame doesn’t capture attention immediately, most users will swipe past.

Budgeting and Measuring Results

Instagram ads are managed at the ad set level in Meta Ads Manager, where you set your daily or lifetime budget. You can run campaigns on Instagram only, Facebook only, or across both simultaneously using ‘Advantage+ placements’. For most UK small businesses starting out, allowing Meta to optimise across placements tends to produce better cost efficiency.

Measure results based on your campaign objective. For awareness campaigns, look at reach and cost per thousand impressions. For traffic campaigns, monitor click-through rate and cost per click. For conversion campaigns, focus on cost per lead or cost per purchase — these are the metrics that ultimately determine whether your Instagram advertising is profitable.

Test consistently. Instagram advertising rewards experimentation with creative. Run A/B tests on different images, video openings, ad copy angles, and calls to action. Small improvements in creative performance compound over time into meaningfully lower costs per result.