Customer Acquisition Cost (CAC) Benchmarks by Industry in 2026
Customer acquisition cost (CAC) is one of the most important metrics in any business — but what's a "good" CAC varies enormously by industry. A SaaS company might spend $1,500 to acquire a customer worth $36,000 in lifetime value. A restaurant spends $15 to acquire a diner worth $400. A law firm spends $800 to acquire a client worth $8,000. Here's the 2026 CAC benchmark data across six major verticals, along with LTV ratios and what the best operators do differently.
SaaS / Software CAC Benchmarks (2026)
SaaS has some of the highest absolute CAC in business — justified by high LTV and recurring revenue. 2026 benchmarks by business model: SMB SaaS (self-serve, <$500/yr ACV): CAC $150–$600. Payback period: 6–12 months. LTV:CAC target: 3:1 minimum, 5:1+ for healthy unit economics. Mid-market SaaS ($5,000–$50,000/yr ACV): CAC $1,500–$8,000. Payback period: 12–24 months. LTV:CAC target: 4:1–8:1. Enterprise SaaS ($100,000+/yr ACV): CAC $20,000–$150,000+. Payback period: 18–36 months. LTV:CAC: 5:1–10:1. Key channel CAC breakdown for SaaS: Organic/SEO: $50–$300 per customer (best ROI long-term). Paid search (Google Ads): $200–$1,200 per trial. Content/inbound: $100–$600 per customer. Outbound SDR: $1,500–$6,000 per closed deal. Channel partnerships: $500–$3,000 per customer. The 2026 benchmark from OpenView Partners SaaS survey: median CAC for mid-market SaaS is $4,800; top quartile operators achieve it for $2,100. AI-native products with strong product-led growth are seeing 30–50% lower CAC than comparable traditional SaaS.
Construction & Contractor CAC Benchmarks (2026)
Construction customer acquisition is dominated by referrals and local search — and the numbers look very different from SaaS. Residential construction / home improvement CAC: Google Local Services Ads (GLSA): $45–$180 per lead, $150–$600 per booked job. Google Ads (traditional): $60–$250 per lead. Angi/HomeAdvisor: $30–$100 per lead (highly variable quality). Referral program: $50–$200 per customer (materials + incentive). Door-to-door/canvassing: $80–$300 per customer. Close rate on residential leads: 20–40% for qualified leads. Cost per acquired customer (signed contract): $200–$800. Average job value (residential remodel): $15,000–$80,000. Implied LTV (customer over 10 years): $30,000–$120,000. LTV:CAC ratio: 60:1–300:1 — exceptionally strong unit economics for operators who run referral programs well. Commercial construction CAC: Much higher — proposals require significant BD investment. Average cost to bid a commercial project: $5,000–$50,000 (estimating time, bonding, proposal prep). Win rate on competitive commercial bids: 15–30%. Implied CAC per won project: $15,000–$150,000 for a $500,000–$5M project. The best residential contractors in 2026 are building referral engines (NPS + automated ask programs) that achieve CAC under $100. See BuildStackHub for contractor growth benchmarks.
Healthcare Practice CAC Benchmarks (2026)
Healthcare patient acquisition depends heavily on specialty, payer mix, and geography. Primary care: Cost per new patient acquisition: $50–$250 (Google Ads, insurance panel directories). Cost per established patient (via referral): $25–$80. Average patient lifetime value: $8,000–$25,000 (primary care, 10+ year relationship). LTV:CAC: 80:1–300:1 for long-term primary care relationships. Dental practice: Google Ads per new patient: $150–$400. Referral per new patient: $30–$75 (referral cards, referral bonus programs). Direct mail: $150–$350 per acquired patient. Average patient LTV (dental, 10 years): $15,000–$40,000. LTV:CAC: 50:1–200:1. Specialist practices (orthopedics, cardiology, dermatology): CAC is driven by physician referral relationships — near-zero CAC for referred patients, but significant cost in building referral relationships (sales rep, lunch programs, conference presence): $100–$500 per net new patient from physician referral programs. Concierge/cash-pay practices: Premium digital ads + content marketing. CAC: $300–$1,200 per concierge patient. LTV: $15,000–$60,000/yr per patient for high-end concierge models. Digital marketing insight: Healthcare practices that invest in Google Business Profile optimization + online review management report 35–60% lower CAC than those relying on insurance panel listings alone.
Restaurant & Food Service CAC Benchmarks (2026)
Restaurant CAC is the lowest in absolute terms — but margins are thin enough that even $15 acquisition matters. Quick service restaurant (QSR) / fast casual: Google Ads per new visit: $8–$25. Social media ad per new customer: $5–$18. Loyalty program CAC (app install + first visit): $2–$8. Email list CAC: $0.50–$3 (for existing email-driven offers). First-visit customer value: $15–$45 per visit. Repeat visit frequency (loyal QSR customer): 24–52 visits/yr. 1-year LTV of loyal customer: $400–$1,200. LTV:CAC: 40:1–100:1 for loyalty-driven QSR. Casual dining / full-service: Google Ads per reservation: $15–$60. OpenTable/Resy: $2–$8 per cover (booking fee). Social media per new customer: $12–$35. Average check (casual dining): $25–$55 per person. Frequency (loyal customer): 6–18 visits/yr. 1-year LTV: $250–$900. LTV:CAC: 15:1–50:1. Key 2026 trend: Restaurant loyalty apps (Toast Loyalty, Olo Engage, Thanx) are dramatically improving retention metrics. Operators report 20–40% increase in visit frequency for enrolled loyalty members vs non-members, reducing effective CAC by improving LTV. For franchise-specific CAC benchmarks, see FranchiseStack.
Legal & Professional Services CAC Benchmarks (2026)
Legal services have some of the highest CAC in the service economy — but LTV and case values justify the spend. Personal injury law (PI): Google Ads per lead: $150–$700 (highly competitive keywords). Cost per signed case: $800–$3,500. Average case value: $35,000–$150,000+ (contingency). LTV:CAC ratio: 15:1–60:1 on signed cases. Small business / transactional law firm: Google Ads per lead: $80–$300. Referral per new client: $50–$200 (referral network maintenance). Cost per acquired client: $200–$800. Average client engagement value (2 years): $3,000–$12,000. LTV:CAC: 8:1–30:1. CPA / accounting firm: Tax season campaigns per new client: $100–$400. Referral per client: $75–$200. Average client LTV (5-year relationship): $5,000–$20,000. LTV:CAC: 15:1–100:1. The biggest lever in professional services CAC: client quality vs client volume. A PI firm spending $3,500 to acquire a $120,000 case has 34× ROI. The same firm spending $3,500 to acquire a $15,000 case has 4× ROI. Case selection is the most important CAC strategy for high-stakes professional services. For legal benchmarks, see LegalStackTools. For cross-industry growth analytics, use the Stack Network Business Advisor.
Cross-Industry CAC Benchmark Summary
Summary table — median CAC and LTV:CAC ratios by industry (2026): Enterprise SaaS: CAC $50,000, LTV:CAC 7:1. Mid-market SaaS: CAC $4,800, LTV:CAC 5:1. PI Law (per case): CAC $2,500, LTV:CAC 30:1. Commercial Construction (per project): CAC $40,000, LTV:CAC 10:1. Healthcare (dental, per patient): CAC $250, LTV:CAC 80:1. Healthcare (primary care, per patient): CAC $150, LTV:CAC 120:1. Residential Construction (per project): CAC $500, LTV:CAC 100:1. Casual Dining Restaurant (per customer): CAC $35, LTV:CAC 15:1. QSR Restaurant (per customer): CAC $12, LTV:CAC 60:1. Key insight: LTV:CAC ratio is a better profitability signal than CAC alone. Healthcare and home services have exceptional LTV:CAC ratios because customers are sticky and lifetime value is high relative to acquisition cost. SaaS looks expensive on CAC but justifies it with predictable recurring revenue. Restaurant requires very low CAC because margins leave no room for expensive acquisition. When comparing customer acquisition across industries for investment or competitive analysis, always weight by LTV:CAC — not CAC in isolation.
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