01Introduction
How to calculate CAC (Customer Acquisition Cost) in industrial B2B
CAC in industrial B2B has particularities: the 6–18 month sales cycle lags investment and result; direct costs (paid media) add up to indirect costs (time of the technical salesperson in prospecting) that are often ignored; and accurate calculations require separating CAC by channel (organic, paid, referral) for precise decisions.
Summary
CAC in long cycle: formula, lag and breakdown by channel
Basic formula: (Marketing + Sales Expenses) ÷ New Customers. In industrial B2B with a long cycle, manage the lag between investment and result — ideally compare quarter T investment with quarter T+3 closings. Include direct and indirect costs. Analyze CAC by channel to make precise allocation decisions.
03The Lag Problem
The Lag Problem in Long Cycle
Investment made in January generates a lead in February, a meeting in March, a proposal in April, negotiation from May to September, closing in October. Between investing and closing, 9 months pass. If calculating CAC quarterly ignoring this lag, the result is misleading.
Approach 1
Lagged CAC
Compare quarter T investment with quarter T+3 closings (if average cycle is 9 months). Requires historical record. More accurate, requires data maturity.
Most Accurate
Approach 2
Steady-State CAC
After 12–18 months of consistent investment, the system enters steady state — each quarter has closings from accumulated investments. Distortion diminishes.
Practical
Recommendation
Be Patient
For mid-sized industry starting out, Approach 2 is practical. Requires patience (first 12–18 months the CAC is distorted upward) but stabilizes.
For Starters
04What to Include
What to Include in the CAC
Direct marketing costs: Ads (Google, LinkedIn), tools (CRM, automation), content production (writer, designer), hosting and domain, external agency (if any).
Direct sales costs: Commercial team salary + charges, paid commissions, travel and displacement, commercial tools, events and fairs.
Indirect costs often ignored: Owner/director time in commercial meetings (if 20% of the director's time goes to sales, 20% of their salary is CAC cost), engineer time preparing technical proposals, administrative time in follow-up and documentation.
"Indirect costs — director time in sales, engineer time in proposals — are the most frequently ignored component of industrial CAC. Their omission systematically underestimates the true cost of customer acquisition."
05CAC per Channel
CAC per Channel — Benchmarks Industrial B2B Brazil
Calculating total CAC is useful. Calculating CAC per channel is transformative. Separation by channel reveals where investment has the highest return. Industries that do this calculation frequently discover that organic has 40–70% lower CAC than paid or fairs — reallocating investment.
Organic Channel
R$ 2k–15k
SEO + AEO. Starts high in the first 6–12 months, then falls progressively. The digital asset economy — content continues generating closings without proportional additional investment.
Decreasing Over Time
Paid Channel
R$ 5k–25k
Google Ads, LinkedIn. Tends to be more static — does not fall over time unless CTR and conversion rate improve. Useful for volume; less efficient for long cycle.
Static
Fair/Event
R$ 30k–100k
High CAC for direct closing, but also generates intangible benefits: brand visibility, relationships, competitive intelligence. Evaluate in total context.
Highest CAC
06FAQ
FAQ
How to calculate CAC in industrial B2B? +
Basic formula: (Marketing expenses + Sales expenses) ÷ Number of new customers, in the same period. In industrial long cycle, manage the lag between investment and result — ideally compare quarter T investment with quarter T+3 closings (if average cycle is 9 months).
What to include in the industrial CAC? +
Direct marketing costs (Ads, content, tools), direct sales costs (team, commissions, travel, fairs), and indirect costs often ignored (owner/director time in commercial, engineer time in proposals). Do NOT include general operating costs or production.
What CAC is healthy for industrial B2B? +
General rule: LTV ≥ 3x CAC. In industry with high LTV (customer for 5–10 years), CAC can be relatively high and still profitable. For average ticket R$ 200–500k with repurchases, CAC between R$ 10k–30k tends to be healthy. Above that, evaluate adjustments.
How to reduce CAC in industrial B2B? +
Three main levers: (1) increase the weight of organic channels (SEO + AEO) which have decreasing CAC over time; (2) optimize conversion rate at each funnel stage; (3) create a formal referral program, the lowest-CAC channel. Reductions of 30–50% are common in 12–18 months with discipline.
The fair has high CAC. Should I stop going? +
Not necessarily. The fair generates high CAC for direct closing, but also generates intangible benefits: relationship with existing clients, brand visibility, competitive intelligence, sector recognition. Evaluate fair CAC in total context — if only for acquisition, it often does not pay; if it covers multiple functions, it may be the right investment.
Is CAC per channel important? +
Very much so. Total CAC mixes very different efficiencies. Separating by channel (organic, paid, fair, referral) reveals where to invest more and where to cut. Decisions based on CAC per channel generate more efficient reallocation than decisions based on total CAC.
Does organic CAC fall over time? +
It tends to fall significantly. Initial investment in content and optimization generates high CAC in the first 6–12 months. From month 12–18, organic CAC stabilizes low — content continues generating traffic and closings without proportional additional investment. This is the economy of the digital asset.
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