Business & AccountingFY 2025-26 Ready

Customer Acquisition Cost (CAC) Calculator

Determine how much you spend to acquire each new customer across marketing channels.

Note

This calculator provides a basic estimate of customer acquisition cost based on total marketing spend and new customers. Actual CAC varies by channel, campaign, and time period. For detailed analysis, segment by acquisition source.

KJ

Fact Checked by Kazi Jihad

Business Operations Consultant

TL;DR – Key Takeaways

  • This tool calculates customer acquisition cost (cac) based on current Australian regulations
  • Results are estimates only; consult a qualified professional for definitive advice
  • Tax laws and thresholds change regularly – always verify with the latest ATO guidelines

Customer Acquisition Cost (CAC) Calculator

CAC measures the average cost to acquire a new customer. It's a critical metric for evaluating marketing efficiency and business scalability. Calculate CAC by dividing total marketing & sales spend by the number of new customers acquired in the same period.

Formula: CAC = Total Marketing Spend / New Customers

A lower CAC is better, but consider quality and lifetime value. Reduce CAC by improving targeting, conversion rates, or organic growth.