Paid Media
How Product Brands Can Lower CAC in 2026
Customer acquisition cost, or CAC, is what you spend on marketing divided by the number of new customers it brings in. When it creeps up, the usual reaction is to cut budget. That makes the number look better for a week or two, but it rarely fixes the cause.
In our experience the cause is nearly always one of four things. These are the fixes we look at first with the Shopify brands we work with.
1. Split campaigns by buying intent
Someone searching for your brand by name is not the same as someone seeing your ad for the first time. When both sit in one campaign, the platform moves budget to wherever results look cheapest. That is usually people who were going to buy anyway. Your CAC looks fine while new customer numbers stall.
Give each campaign one job:
- Prospecting. People who have never bought. Exclude your customer list and judge it on new customers only.
- Retargeting. Recent visitors and abandoned baskets. Keep it small, as many of these sales would happen anyway.
- Brand search. People typing your name into Google. Worth having, but report it on its own so it does not flatter the rest.
- Existing customers. Repeat orders belong to email first. Paid spend here should be a choice, not an accident.
If retargeting and brand search take a growing share of spend each week, fewer new customers are coming in.
2. Match the ad to the page it lands on
A lot of wasted spend happens in the second after the click. The ad talks about one thing, the page opens on another, and the visitor leaves.
- If the ad shows one product, send people to that product page, not the homepage.
- If the ad leads with an offer, such as a bundle or free delivery, show the same offer in the same words at the top of the page.
- If the ad answers a doubt, such as fit or how long it lasts, answer it again near the top.
- Tap through every live ad on your own phone each week. It catches broken links, sold out variants and slow pages.
3. Make each click worth more
CAC has two halves: what you pay for attention, and how many of those people buy. Most brands put their energy into the first half, but the second is often easier to move. On the product pages that get most of your paid traffic, look at:
- Price and delivery. Show delivery cost and time before the basket. Surprises at checkout lose orders you have already paid to win.
- The first photo. It should show the product clearly. Lifestyle shots can come second.
- Reviews. Put the star rating by the price and the most useful reviews near the buy button.
- Order value. A bundle or a sensible free delivery threshold lifts what each new customer spends, so you can afford a higher CAC.
Change one thing at a time and give it at least two weeks, so you can tell what helped.
4. Review CAC every week, with the right numbers
A CAC figure is only as good as the numbers behind it. Each ad platform counts sales its own way, and they often claim the same order. For a weekly review, we use:
- Total ad spend across every channel.
- New customers from your shop, not the ad platforms.
- CAC: spend divided by new customers.
- Margin on a first order, after product cost, delivery, fees and any discount.
- How many new customers order again within 90 days.
If CAC is lower than first order margin, each new customer pays for themselves straight away. If it is higher, you rely on repeat orders to earn the money back, so you need to know how soon they come. Either can work. Not knowing which one you are in is the real problem.
Checklist to start with
- Split campaigns into prospecting, retargeting, brand search and existing customers.
- Tap through every live ad on a phone and fix any gap between ad and page.
- Fix delivery information, photos and reviews on your three busiest product pages.
- Work out CAC from new customers in your shop data and compare it with first order margin.
- Keep a weekly log of changes next to the numbers.
Frequently asked questions
Is there a good CAC benchmark for product brands?
Not one worth much. CAC depends on your price, your margin and how often customers come back. Compare your CAC with your own margin and repeat rate instead.
Should we cut spend as soon as CAC rises?
Not straight away. CAC often rises because of a broken link, a best seller going out of stock or a shift in campaign mix. Cutting spend without knowing why can switch off the campaigns bringing in new customers.
What is the difference between CAC and ROAS?
Return on ad spend, or ROAS, is the revenue a platform says your ads made divided by what you spent. It counts repeat customers too. CAC tells you what one new customer costs, which matters more when deciding whether to spend more.
Where we can help
Our performance dashboard for Shopify brands puts spend, new customers and CAC in one place, with every change marked on the charts. Our ad script system gives you a steady supply of clear ideas to test. And our Made Of More case study shows how we split campaigns by intent and matched landing pages to the ads.