What is the 20 rule on Facebook ads?
What is the 20 rule on Facebook ads?
If you have ever boosted a post or set up a paid campaign on Facebook and had it rejected or restricted, the 20 rule is likely the reason. It is one of the most misunderstood policies in digital advertising, and getting to grips with it can make a significant difference to how your ads perform and whether they get approved in the first place.
The rule itself is straightforward in principle. Facebook historically required that text should cover no more than 20% of any ad image, meaning that imagery needed to dominate and copy needed to be kept minimal within the creative itself.
What Is the Facebook Ad 20 Rule?
The Facebook ad 20 rule was a policy introduced by Meta (formerly Facebook) that restricted the amount of text permitted within ad images. If more than 20% of an image was covered by text, the ad would either be rejected outright or reach a significantly smaller audience than it would otherwise.
Meta used a grid-based tool to assess compliance, overlaying a five-by-five grid onto the image and counting how many squares contained text. If five or more squares contained text, the ad was considered non-compliant and would be limited or disapproved. Advertisers who regularly hit this restriction found their campaigns underperforming even when other targeting and budget settings were optimal.
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How the 20% Text Rule Has Changed on Meta
Meta officially retired the strict 20% text rule in 2021, moving instead to a softer guidance model. Rather than blocking ads with higher text ratios outright, Meta now uses a rating system that categorises image text as “OK,” “Low,” “Medium,” or “High,” with higher ratings leading to reduced delivery.
The shift reflected Meta’s own acknowledgement that the rigid grid system was too blunt an instrument, penalising legitimate advertisers unfairly. However, the underlying principle remains intact: ads with minimal text in the image tend to perform better because Meta’s algorithm favours them during delivery optimisation. Keeping text concise within your creative is still considered best practice, even without a hard limit enforced.
| Image Text Rating | Impact on Ad Delivery |
|---|---|
| OK | Full delivery, no restrictions |
| Low | Slightly reduced delivery |
| Medium | Noticeably reduced reach |
| High | Significantly limited or rejected |
What Is the 20 Text Rule on Meta Across Different Ad Formats?
While the updated guidance applies broadly across Meta’s advertising ecosystem, the impact varies depending on the ad format you are using. Static image ads are most affected because text within the image is clearly visible and easy for Meta’s system to assess. Video ads, carousel ads, and stories formats all carry slightly different considerations.
For video ads, text overlays are still assessed but the algorithm accounts for the fact that text appears for limited durations rather than across the entire creative. Collection ads and Instant Experiences have their own formatting requirements, so it is worth reviewing Meta’s current creative specifications directly within Ads Manager before launching. Staying within recommended guidelines across all formats will protect your delivery rates regardless of the campaign objective you are targeting.
How Much Does 1000 Views Cost on Facebook Ads?
Understanding what you are paying for views is essential for budgeting any paid social campaign effectively. The cost per 1,000 impressions (CPM) on Facebook varies considerably depending on your audience, industry, bidding strategy, and the time of year you are advertising.
On average, UK advertisers can expect to pay somewhere between £3 and £10 per 1,000 impressions, though this figure can rise sharply in competitive sectors such as finance, insurance, or retail during peak seasons like Christmas or Black Friday. Campaigns targeting narrower, highly specific audiences often carry a higher CPM because the inventory is more contested. Conversely, broader audience targeting in less competitive niches can bring CPM down, though this usually comes at the cost of conversion quality.
| Advertising Sector (UK) | Estimated CPM Range |
|---|---|
| Retail and E-commerce | £4 to £8 |
| Finance and Insurance | £8 to £20 |
| Health and Wellness | £5 to £12 |
| Food and Drink | £3 to £7 |
| B2B and Professional Services | £6 to £15 |
For further guidance on digital advertising standards and consumer protection in the UK, the Advertising Standards Authority (ASA) provides comprehensive resources at gov.uk and the ASA’s own regulatory framework governs what advertisers can and cannot claim in paid social content. Businesses operating in regulated sectors should also consult the Competition and Markets Authority guidance on online advertising to ensure compliance with UK consumer law.
How Many Words Should a 30 Second Ad Be?
When it comes to video ad scripts, word count and pacing are closely connected. A 30-second ad typically runs to between 60 and 90 words when spoken at a natural, conversational pace, though this can flex slightly depending on whether you are aiming for a slower, more authoritative tone or a faster, more energetic delivery.
The key is not hitting an exact word count but ensuring that your message is clear, the hook lands within the first three seconds, and the call to action is direct and easy to follow. Facebook’s own data consistently shows that video ads with a strong opening perform disproportionately better in terms of watch time and completion rates. Writing your script to front-load the value proposition, keeping sentences short and punchy, and ending with a single clear action will serve you far better than padding out copy to fill the time.
Bringing It All Together: What Is the 20 Rule on Facebook Ads and Why It Still Matters
The 20 rule on Facebook ads may no longer be enforced as a hard binary policy, but its legacy shapes how successful advertisers approach creative development today. The principle that images should lead and text should support rather than dominate has become embedded in Meta’s delivery algorithm, meaning that creatives adhering to this balance consistently outperform those that do not.
Understanding the relationship between image text, CPM costs, and ad format requirements allows you to build campaigns that work with Meta’s system rather than against it. Advertisers who treat these guidelines as creative constraints rather than opportunities often find themselves paying more for less reach, while those who embrace clean, visually led creative with concise copy tend to see stronger returns on their ad spend.
Ultimately, the question of what the 20 rule on Facebook ads means in practice comes down to this: less text in your image means better delivery, broader reach, and lower effective costs. Whether you are scripting a 30-second video or designing a static image carousel, keeping your on-image copy minimal and your messaging sharp is one of the most reliable ways to improve campaign performance without increasing your budget.
- Meta’s image text rule has evolved from a strict 20% grid system to a delivery-based rating model, but minimal on-image text still produces the best results.
- CPM costs in the UK range from approximately £3 to £20 depending on industry and audience targeting, making creative quality a key lever for cost efficiency.
- A 30-second ad script runs to roughly 60 to 90 words; front-loading your hook and ending with a clear call to action consistently improves completion rates and click-throughs.
What Is the 20 Rule on Facebook Ads: Frequently Asked Questions
The 20 rule originally required that text occupy no more than 20% of any ad image on Facebook. While the strict rule was retired in 2021, Meta still limits the reach of ads with heavy image text through its delivery rating system.
Meta removed the hard 20% text restriction in 2021, replacing it with a four-tier rating system. Ads rated “High” for image text still receive significantly reduced delivery, so the principle of keeping text minimal remains highly relevant.
Meta’s system assesses the proportion of an image covered by text and assigns a rating from “OK” to “High.” The old grid-based tool divided images into a five-by-five grid, and ads with text in five or more squares were flagged as non-compliant.
Ads with excessive image text are assigned a “Medium” or “High” rating by Meta, which results in reduced delivery and a higher effective cost per result. In some cases, ads may be disapproved entirely depending on the extent of the text coverage.
Text overlays on video ads are assessed differently from static images because they appear for limited durations rather than throughout the entire creative. However, heavy or persistent text overlays can still affect delivery, so keeping them brief and purposeful is advisable.
UK advertisers typically pay between £3 and £10 per 1,000 impressions for standard campaigns, though competitive sectors such as finance or insurance can push CPM well above £10. Audience targeting and bidding strategy both have a significant influence on CPM.
A 30-second ad script typically contains between 60 and 90 words when delivered at a natural speaking pace. Keeping sentences short and front-loading your key message within the first few seconds significantly improves viewer retention.
Yes, the Facebook ad 20 rule and the Meta 20 text rule refer to the same policy, as Facebook rebranded to Meta in 2021. The rule applied across Facebook and Instagram placements and continues to influence ad delivery under Meta’s current rating framework.
Static image ads are most directly affected because the text is present throughout the entire creative. Stories, carousel, and collection formats each have specific guidelines, but the general principle of minimal on-image text applies across all placements.
Meta’s Text Overlay tool within Ads Manager allows you to upload your image and receive a rating before publishing. Using this tool during the creative review stage helps avoid delivery restrictions before your campaign goes live.
No, the text restriction applies only to text within the ad image itself. Copy written in the ad headline, primary text, or description fields is not subject to the image text guidelines and can be as long as your strategy requires.
Meta’s position is that image-led ads provide a better user experience and perform more effectively than text-heavy creatives. Research from Meta suggests that ads with minimal image text achieve higher engagement rates and lower costs per result across most campaign objectives.
Certain ad types, such as those promoting events with dates or product ads featuring prices, are given more flexibility around on-image text. Meta’s current guidelines acknowledge that some text elements are functionally necessary and apply contextual judgement rather than a blanket restriction.
The most up-to-date information is available directly through Meta’s Ads Manager and its Business Help Centre. You can also refer to the Wikipedia page on Facebook advertising for background context on how the platform’s advertising policies have developed over time.
