TL;DR
- Google’s average CPC climbed to $5.26 in 2025 and Meta’s CPMs rose roughly 20% year on year, so the old playbook of “just tweak your bids” doesn’t cut it anymore. If you’re running paid media in 2026, working with a ppc agency that understands both platforms’ automation shifts matters more than ever.
- The single biggest CPA fix isn’t a bidding trick, it’s cleaning up your conversion data. Enhanced Conversions on Google and the Conversions API on Meta feed the algorithms better signal, and better signal is what actually brings your cost per acquisition down.
- African markets enjoy lower ad costs than the US or Europe, but mobile data costs, payment friction, and currency swings (especially with the naira) can quietly cancel out that advantage if your landing pages and checkout aren’t built for the market.
- Creative fatigue is now the main thing driving up your Meta costs. Once your ad frequency crosses 3 in a week and your click-through rate starts dropping, your CPA is already climbing, so don’t wait for the dashboard to confirm it.
- Fix your measurement first, then your account structure, then your landing pages, then your creative. In that order. Skipping ahead to bidding tricks before your data is clean just means you’re optimising against noise.
If your cost per acquisition on Google and Meta has been creeping up, you’re not alone, and it’s probably not your targeting that’s broken. Google’s average cost per click hit $5.26 in 2025, up nearly 13% on the year before, and Meta’s cost per thousand impressions rose around 20% over the same period. Rising costs are the new normal on both platforms. What separates advertisers who keep their CPA in check from those watching it spiral is how they respond to that shift, and increasingly, that response starts with data quality rather than clever bidding.
This guide walks through what’s actually working right now to bring CPA down on Google Ads and Meta Ads, with a section on what’s different if you’re advertising into South Africa, Kenya, or Nigeria specifically.
Start With Your Conversion Data, Not Your Bids
Before you touch a single bid strategy, get your measurement right. Here’s why this matters more than anything else on this list: both platforms’ bidding algorithms are only as smart as the data you feed them. Garbage in, garbage out, and an inflated CPA out.
On Google, that means switching on Enhanced Conversions, which sends hashed first-party data (like a customer’s email) to match conversions back to signed-in Google accounts even when browser cookies are blocked. Most advertisers see a genuine lift in measured conversions of somewhere between 5% and 25% once it’s properly set up, purely because you’re no longer losing conversions to cookie restrictions and ad blockers. Pair it with Consent Mode, which handles the privacy side of things, and you’ve got what most performance marketers now treat as the baseline, not the advanced option.
On Meta, the equivalent is the Conversions API (CAPI), run alongside your Pixel with a shared event ID so the two don’t double-count. CAPI sends conversion events from your server rather than relying purely on browser tracking, which recovers a meaningful chunk of the data lost since Apple’s privacy changes. Aim for what Meta calls an Event Match Quality score of at least 7, ideally above 8, and the fastest way to get there is making sure you’re sending a hashed email address with every single event you track.
Neither of these fixes is glamorous. Both usually move the needle more than anything else on this list.
Lowering CPA on Google Ads
Give your bidding strategy the data it needs before you trust it. Target CPA bidding works well once Google has enough history to learn from, generally at least 30 conversions in the past 30 days. If you’re below that, stick with Maximize Clicks or manual bidding first to build a track record, then move across. When you do switch to Target CPA, set your target roughly 20 to 30% above where you actually want to land, then tighten it gradually every couple of weeks. Set it too aggressively from day one and Google simply stops spending your budget, which looks like a win on your CPA report and is actually a campaign that’s barely running.
Use the new Performance Max controls. For a long time, Performance Max was criticised as a black box that spent your money without telling you where. That’s changed. You can now add negative keywords at the campaign level (up to 10,000 of them), see your actual search terms, and view performance by channel. If you’re running Performance Max, treat it as a scaling tool once you’ve validated an offer through standard Search campaigns, not as your first test.
Clean up your account structure. The old approach of one keyword per ad group is outdated advice for how Smart Bidding actually works today. Group five to fifteen closely related keywords into a single themed ad group instead, and keep brand and non-brand campaigns strictly separate. Mixing them hides your true acquisition cost, because branded searches convert far more cheaply and can mask a struggling non-brand campaign. Restructured accounts commonly see quality scores climb and CPA drop meaningfully within a couple of months, simply because the algorithm has cleaner, more concentrated data to learn from.
Don’t skip negative keywords. This sounds basic because it is, and it’s still one of the fastest ways to cut wasted spend. Blocking obviously irrelevant terms, like “free” or “used” if you’re selling a premium product, can drop costs immediately without touching a single bid.
Fix your landing page before you fix your bids. A one second improvement in mobile load time can lift conversion rate by around 27%, and more than half of mobile visitors abandon a page that takes longer than three seconds to load. Cutting a long contact form down to four fields instead of eleven has been shown to more than double conversion rate on its own. If your landing page is slow or your form is long, no amount of bidding cleverness will fix your CPA.
Lowering CPA on Meta Ads
Let Advantage+ do the targeting, but watch your existing customers. Meta now defaults most Sales and Lead campaigns into Advantage+, its automated targeting and placement system, and it genuinely does lower CPA once your account has enough weekly conversions (roughly 50+) to give the algorithm something to learn from. One caveat worth knowing: Advantage+ has, at times, over-spent on people who’d already bought from you rather than finding new customers. Meta added a control back in to cap that, so if you’re seeing your “new customer” CPA look suspiciously good, check whether you’re actually just re-selling to existing buyers.
Build lookalikes from your best customers, not all of them. If your account doesn’t yet have the conversion volume for Advantage+ to shine, a 1% lookalike audience seeded from your top 20 to 25% highest-value customers, rather than everyone who’s ever bought from you, tends to outperform broader interest-based targeting by a wide margin.
Treat creative fatigue as a CPA problem, not a design problem. Once a specific ad’s frequency (how many times the same person sees it) climbs past 3 in a week, and your click-through rate starts dropping against your first week’s baseline, your cost per click and CPA are already rising even if the dashboard hasn’t fully caught up. High-performing accounts tend to refresh creative roughly every ten days, and the trigger should be your spend and fatigue signals, not a fixed monthly calendar. A campaign spending R5,000 a day burns through creative far faster than one spending R500 a day.
Get your Conversions API event quality right. As covered above, this is the single highest-leverage fix on Meta right now. Fix it before spending more time on audience or creative testing.
What’s Different for African Markets
If you’re advertising into South Africa, Kenya, or Nigeria, the fundamentals above still apply, but a few things change the calculation.
Your audience is mobile-first, properly mobile-first. Africa has some of the highest mobile-only internet usage in the world, and it’s only becoming more so. Every landing page, form, and checkout flow needs to load fast and work cleanly on a mid-range Android phone, not just look good on your designer’s laptop.
Cheap impressions don’t guarantee a cheap sale. Ad costs across these markets are genuinely lower than the US or UK averages, sometimes dramatically so. That’s real and it’s an advantage. But data costs remain a barrier for a meaningful portion of users, and a slow, heavy landing page effectively charges your prospect money out of their own pocket to reach you, on top of whatever you’re already spending to get the click. Optimise for cost per acquisition and backend revenue, not for how cheap your impressions look.
Payment friction is a CPA lever most advertisers ignore. Mobile money is how a huge share of people in these markets actually transact, and offering it (alongside cash on delivery where relevant) at checkout removes a real barrier that otherwise shows up as an abandoned cart, not a line item you can see in your ads dashboard.
Currency matters more than you’d think. If you’re running Naira-denominated accounts in particular, currency depreciation means your effective local cost per click keeps rising even when the US dollar figure looks flat. Set your CPA targets in local currency and revisit them as exchange rates move, rather than anchoring to a dollar benchmark that doesn’t reflect what you’re actually paying.
The Order That Actually Works
If you take one thing from this, take the sequence. Fix your conversion tracking first, because every other tactic depends on the algorithm having clean data to work with. Then sort your account structure, so Smart Bidding and Advantage+ have enough concentrated signal to learn from. Then fix your landing pages and checkout flow, because that’s where a huge share of “ad platform” CPA problems are actually hiding. Only then does it make sense to get precise about bid targets and creative rotation.
A properly briefed google ads agency or in-house team working through that sequence, rather than jumping straight to bid adjustments, is what separates accounts that steadily bring their CPA down from ones that stay stuck chasing the same number every quarter. If you’d rather have that sequence run for you, Welcome Tomorrow is a growth marketing agency in Africa that works through exactly this playbook for high-growth businesses across South Africa, Kenya, and Nigeria.