Customer Acquisition Cost (CAC) Explained for Local Businesses
RP
Ronak Patel · Founder, Wallefy
2 min read · Updated 2026-05-22
TL;DR
Customer Acquisition Cost (CAC) is the total cost to acquire one new customer: Total Sales & Marketing Spend / Net New Customers. Set your CAC ceiling at CLV / 3 (healthy LTV:CAC ratio). Wallet-first loyalty programs lower effective CAC by 30-50% over 90 days because every wallet pass installer becomes a free push-notification recipient for life.
The CAC formula
CAC = Total Sales & Marketing Spend / Number of New Customers Acquired
"Total spend" includes paid ads, salaries for sales/marketing staff, tools/software, content production. "New customers" is net new — exclude returning customers from the count.
The payback period rule
Payback period = how long it takes for the gross profit from a new customer to cover the CAC of acquiring them. Healthy payback by industry tier: 14-30 days for daily-frequency (coffee, QSR), 30-60 days for weekly (gym, pizza), 60-90 days for monthly (medspa, retail), 90-120 days for quarterly (dental, auto), 150-180 days for annual (HVAC, home services). If payback exceeds 2x the industry-tier target, you're overspending on acquisition.
Industry CAC benchmarks (12 industries)
Typical CAC ranges Wallefy sees: coffee $5-20, QSR $3-12, fast casual $8-25, casual dining $15-40, fine dining $50-200, beauty salon $30-100, nails $15-50, barber $10-30, medspa $80-250, wellness $40-120, gym $40-150, studio $30-90, retail $15-50, ecommerce $20-80, auto service $25-80, detail $10-30, home services $40-150, HVAC $60-200, dental $80-300, chiro $50-150, pet $15-50.
CAC by channel
CAC varies massively by channel for the same business. Examples: dental Google Search ads $150-300; dental referral $30-80; medspa Instagram organic $5-20; medspa Meta ads $80-150; HVAC EDDM $60-150; HVAC Google Search $40-90. Always compute blended CAC AND channel-specific CAC — they tell different stories.
How wallet-first retention lowers effective CAC
A wallet pass loyalty program installs at 60-80% rate at point-of-sale (vs <10% for traditional loyalty apps). Every wallet pass installer becomes a free-push-notification recipient for life. Channel CAC drops 30-50% over 90 days as more new customers convert to wallet pass holders — repeat visits from existing customers replace what would have been new acquisitions.
Frequently asked questions
Should I include staff salaries in CAC?
Yes — fully-loaded CAC includes the portion of sales/marketing staff salaries dedicated to acquisition. This is what investors and serious operators track. Simpler "ad-cost-only" CAC understates true acquisition cost.
How do I lower CAC?
Three plays: (1) Improve conversion rate at each funnel step (landing page, booking flow, checkout). (2) Increase referral rate — referrals are the lowest-CAC source for every industry. (3) Shift spend toward higher-converting channels and away from low-converters (measure with channel-specific CAC).
Is a high CAC always bad?
No — only relative to CLV. A $300 CAC for a dental practice with $3,120 CLV is fine (10:1 ratio). A $300 CAC for a coffee shop with $800 CLV is a disaster (2.7:1). Always pair CAC with CLV.
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