Books Customer Acquisition Cost — 2026 Data
Published June 2026 · Industry benchmark data
Books Customer Acquisition Cost
$14
Avg CAC ($8–$22)
$110
Avg CLV
7.9:1
CLV:CAC ratio
It costs an average of $14 to acquire a new customer for an online book store. This includes all advertising spend divided by the number of new customers acquired. With an average order value of $28, customer acquisition represents 50% of the first order value.
Is Your CAC Healthy?
The golden rule is a CLV:CAC ratio of 3:1 or higher. For book stores, this means your customer lifetime value should be at least $42 (3x your CAC of $14). The industry average CLV is $110, giving a ratio of 7.9:1 — above the healthy threshold.
CAC by Channel
Paid social (Meta/TikTok): $17–$21
Google Shopping: $11–$15
Email marketing: $1–$4
Organic/SEO: $1–$3
Frequently Asked Questions
What is the average CAC for book stores?
Online book stores spend $8-$22 to acquire a customer, with an average of $14. This includes all ad spend divided by new customers acquired.
What is a good CAC for book e-commerce?
A CAC below $8 is excellent. $8-$22 is average. Above $22 means you need to improve ad efficiency or conversion rates. Always compare CAC to customer lifetime value.
What is a healthy CAC to CLV ratio?
Aim for a CLV:CAC ratio of 3:1 or higher. For book stores with an average CLV of $110 and CAC of $14, the ratio is 7.9:1.
How can I reduce CAC for my book store?
Build organic traffic with SEO and content marketing, grow your email list, implement referral programs, and improve your conversion rate so more visitors become customers from the same ad spend.
Is my book store CAC too high?
Compare your CAC to your average order value. If your CAC is more than 30% of AOV ($14 vs $28 AOV), you are spending too much to acquire each customer relative to what they spend.