TL;DR
Cost to Acquire is another name for <a href="/glossary/cac" class="text-brand-600 underline decoration-brand-200 underline-offset-2 hover:text-brand-700">CAC (Customer Acquisition Cost)</a> — the total cost of acquiring a single new customer. The two terms are interchangeable. 'Cost to Acquire' is more common in retail, telecom, and financial-services contexts; 'CAC' is dominant in SaaS and D2C. Both refer to the same calculation: total acquisition spend divided by new customers in a period.
What is cost to acquire?
Cost to Acquire is identical to Customer Acquisition Cost (CAC) — the total cost of acquiring a single new customer. The terms are interchangeable; preference varies by industry.
Telecom, financial services, and traditional retail tend to favour 'cost to acquire' (often abbreviated 'CTA' though that abbreviation conflicts with 'call-to-action'). SaaS and D2C tend to favour 'CAC'.
The same scope ambiguity that affects CAC affects cost to acquire: it can mean paid-media-only, fully-loaded (with salaries and overhead), or include retention spend depending on context.
How to calculate it
Cost to Acquire = Total Acquisition Spend / New Customers Acquired Where Total Acquisition Spend can be: - Paid media only (= Paid CAC) - All marketing + sales (= Marketing/Sales CAC) - All acquisition costs (= Fully-Loaded CAC) Specify the scope when reporting.
Industry conventions
| Industry | Preferred term | Common scope |
|---|---|---|
| B2B SaaS | CAC | Fully-loaded (with salaries) |
| D2C | CAC | Paid CAC primarily, fully-loaded for board |
| Telecom | Cost to Acquire / SAC | Subscriber Acquisition Cost — fully-loaded |
| Financial services | Cost to Acquire / CAC | Fully-loaded with allocated branch overhead |
| Retail | Cost to Acquire / CAC | Marketing-only typically |
When to use which term
In cross-industry or external-facing conversation (board decks, investor pitches), use 'CAC' — it has the clearest universal meaning.
In industry-specific operational conversation (telecom subscriber economics, retail merchant operations), use the term local to that industry. For Fairview customers, this is overwhelmingly CAC.
When the audience is mixed, use both: 'Cost to Acquire (CAC)' on first use, then CAC throughout.
Related concepts
CAC is the canonical term. Paid CAC and fully-loaded CAC are scope variants. Cost to Serve is the post-acquisition operational complement. Cost to Retain is the retention-side complement.
At a glance
- Category
- Profit Intelligence
- Related
- 5 terms
Frequently asked questions
Is cost to acquire the same as CAC?
Yes — interchangeable terms for the same calculation. 'Cost to acquire' is more common in telecom, retail, and financial services. 'CAC' is dominant in SaaS and D2C. The scope (paid, fully-loaded, etc.) is the variable that matters operationally.
Which term should you use?
In external-facing conversation, 'CAC' is clearest. In industry-specific operational discussion, follow the convention of that industry. When audience is mixed, use 'Cost to Acquire (CAC)' on first use to bridge both vocabularies.
Does cost to acquire include service costs?
No — cost to acquire is acquisition-only by convention, the same as CAC. The full lifetime cost is acquisition + cost to serve + cost to retain, sometimes called 'lifetime cost of customer'. Don't conflate.
Sources
- B2B SaaS investor reports (2024–25)
- Telecom subscriber-economics standards
- Fairview customer data (2025)
Fairview is an operating intelligence platform that computes cost to acquire (CAC) at multiple scopes — paid, fully-loaded, marketing-only — so the term used in any given conversation refers to a specific number rather than a hand-wavy aggregate. Start your free trial →
Siddharth Gangal is the founder of Fairview. He built the multi-scope CAC layer after watching cross-functional planning meetings where finance, marketing, and CS each came in with different cost-to-acquire numbers and assumed each other's was wrong — when actually all three were right at different scopes, and the conversation needed to start by agreeing on which scope was being optimised.
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