You’ve set up your Facebook, Instagram, or Google Ads account, picked your audience, and created a killer ad. But now comes the big question: How much should you actually spend?
Too little, and your social media ads barely get seen. You risk wasting money and devaluing your ROI. It’s a tricky balance – and one that many businesses get wrong.
But here’s the good news: there’s a smart way to figure out your ad spend without guessing or overspending.
Let’s break it down.
What Affects the Cost of Paid Social Media Ads?
Many businesses assume that setting an ad budget is as simple as picking a number and running with it. However, ad costs are influenced by several factors, including the platform, industry competition, and audience targeting.
Platform Matters
Different platforms have different pricing models;
- Meta ads (Facebook and Instagram) typically have lower cost-per-click (CPC) rates, ranging from £0.40 to £1.50, making them great for brand awareness and engagement.
- Google Ads, on the other hand, targets high-intent users, but CPCs can range from £0.80 to £6.00, depending on keyword competition.
Each platform has its own strengths and challenges, and the right choice depends on your business goals. If you’re unsure where to invest, take a look at our guide on The Pros and Cons of Today’s Top Advertising Platforms to compare options and find the best fit for your strategy.
Industry & Competition
A local bakery advertising on Instagram won’t face the same costs as a legal firm bidding on competitive Google search terms. Highly competitive industries like finance, legal, and SaaS tend to have higher CPCs, meaning businesses need a well-optimised landing page and conversion strategy to make their budget count.
Audience Targeting
Broad audience targeting tends to be cheaper but less effective, while narrower targeting improves conversion rates but increases costs. We have seen many businesses waste their budget on irrelevant clicks due to poor audience segmentation. A well-structured campaign, using lookalike audiences and retargeting, ensures that every pound spent is working toward real results.
How Much Should You Spend on Facebook & Instagram Ads?
If you’re wondering “How much does Facebook advertising cost?” or “How much are Instagram ads?”, the answer depends on several factors, including ad objectives and audience size.
On average, businesses can expect:
- Cost Per Click (CPC): £0.40–£1.50
- Cost Per 1,000 Impressions (CPM): £4–£10
- Cost Per Lead: £5–£25 (varies by industry)
At WSI Digital Advisors, we recommend starting with at least £500 to £1,500 per month on Meta ads to gather meaningful data. Ad performance improves with continuous testing – A/B testing images, headlines, and ad formats helps lower costs and increase conversions over time.
One of the most effective strategies for lowering ad costs is retargeting warm audiences. Someone who visits your website or engages with a post is more likely to convert than a cold audience, making retargeting a must for maximising ROI.
Are you also thinking of running Google Ads? They run differently from Meta Ads, so find out more in our blog The Top Types of Google Ads for SMEs for a detailed breakdown.
Why Your Paid Social Media Ads Might Not Be Converting
Even with a well-planned budget, some businesses find their paid social media ads just don’t perform as expected. If your campaigns aren’t delivering results, here are three common reasons why – and how to fix them:
1. Poor Audience Targeting
If your ad reach is too broad or too narrow, you might not be reaching the right people. A common mistake is relying too much on broad interest-based targeting rather than leveraging custom audiences and lookalike audiences.
Use data-driven targeting by leveraging past customer data, retargeting website visitors, and testing different audience segments to see which one converts best.
2. Weak Creative & Ad Messaging
Users scroll fast, and if your social media ads don’t grab attention in the first few seconds, they won’t engage. Static images, generic copy, or overused stock photos can make ads feel uninspiring.
The best-performing ads feature bold visuals, engaging headlines, and a clear CTA. A/B testing different formats like video, carousel, and interactive ads helps find what resonates most with your audience.
3. Sending Traffic to an Ineffective Landing Page
Your ad might be getting clicks, but if your landing page isn’t optimised, those visitors won’t convert. A slow-loading page, unclear messaging, or too many form fields can hurt conversions.
Ensure every ad leads to a relevant, high-converting landing page that matches the ad’s message and includes a strong call-to-action (CTA).
How to Set the Right Budget for Paid Social Media Ads
Customer Acquisition Cost (CAC)
A key factor in setting an ad budget is understanding your Customer Acquisition Cost (CAC) – how much it costs to acquire a new customer. If your CAC is too high, your ads aren’t profitable.
We always factor in CAC when planning ad budgets. If you’re unfamiliar with this concept, check out our detailed guide on Customer Acquisition Costs to learn how to calculate and optimise it.
Revenue Goals & Conversion Rates
Understanding conversion rates and key eCommerce metrics is essential for setting the right budget. If you’re running an online store, check out our blog on Simple eCommerce Metrics for Success to learn how to track and improve performance.
Final Thoughts
A well-planned budget, smart audience targeting, and continuous optimisation ensure your paid social media ads deliver real results.
Figuring out the right ad spend doesn’t have to be overwhelming – start with clear goals, test what works, and tweak as you go. And if you need expert advice, contact us today for a tailored strategy that delivers real results.
