Customer Acquisition Cost Calculator (CAC)
Assess corporate sales and marketing efficiency. Customer Acquisition Cost (CAC) quantifies the total capital expended across paid media advertising, sales representative payroll, and marketing software subscriptions to acquire one new paying customer.
Paid search, social ads, sponsorships, and agency fees
Salaries, commissions, and bonuses paid to sales and marketing staff
CRM licenses, analytics platforms, marketing automation tools
Total new paying customers won during the period
Blended total cost required to acquire one new paying customer
How to Use This Calculator
- Enter total direct ad spend and agency fees for the fiscal period.
- Enter total compensation and commissions for sales and growth marketing personnel.
- Input CRM software, marketing automation platforms, and related overhead.
- Enter the net count of newly acquired customers during that same period.
- Review fully loaded CAC and evaluate payback period against monthly gross profits.
Formula & Calculation Methodology
Fully loaded CAC divides all commercial expenditures dedicated to growth by total paying customers acquired.
Worked Example
$35,000 ad spend, $25,000 payroll, $5,000 software acquiring 250 customers
Frequently Asked Questions
Why is "fully loaded" CAC more reliable than paid ad CAC alone?↓
Paid ad CAC only measures media spend, ignoring sales salaries, software subscriptions, and creative production. Fully loaded CAC reflects the true all-in cost required to operate your customer acquisition engine.
What is CAC Payback Period?↓
CAC Payback Period measures the number of months required for a customer to generate sufficient gross profit to repay their acquisition cost. Venture-backed SaaS companies target a payback under 12 months.
Should customer success or account management costs be included in CAC?↓
No. Customer success and retention account management focus on preventing churn and expanding existing accounts, so they belong in Cost of Goods Sold or operating retention expenses rather than acquisition CAC.
How does sales cycle length impact CAC calculation timing?↓
In enterprise sales with 6-month cycles, comparing current month sales salaries against current month closed deals distorts CAC. Expenses should be matched against the sales cycle lag.
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Source Citation & Disclaimer
Informational tool only; not licensed tax, legal, or financial advice.