What Is CAC and Why Does It Matter?
Customer acquisition cost (CAC) is the total amount a business spends to win a new customer. Every marketing expense goes into it: ads, sales team salaries, agency fees and tool costs. CAC says little on its own; it becomes useful when you compare it using the LTV:CAC ratio.
What Should the LTV:CAC Ratio Be?
| Ratio | Interpretation |
|---|---|
| Below 1:1 | Acquiring customers is losing you money |
| 3:1 | The widely accepted industry target |
| Above 5:1 | You may not be investing enough in growth |
Break CAC Down by Channel
Even when overall CAC looks healthy, channels can differ a lot. If your Google Ads CAC is 5× your organic content CAC, moving budget improves profitability directly. Use the ROAS calculator to measure each channel's return and identify the most efficient one.
Ways to Reduce CAC
You can win more customers without spending more, as long as you track the right metrics.
Improve Your Conversion Funnel
Before spending more on ads, find out what share of your current traffic turns into customers. Taking the conversion rate from 1% to 2% means 2× more customers on the same budget, which halves your CAC.
Look at Customer Lifetime Value
Identify the channels that attract customers with high LTV. It's worth paying a higher CAC for customers who spend more or stay longer. Base your decisions on the LTV:CAC balance.
Build Up Organic Channels
SEO, content marketing and referral programmes are slow in the short term but push CAC toward zero over time. Relying less on paid channels makes the business more resilient in downturns.