ROI & Pricing
What Is Customer Lifetime Value (LTV)?
Customer lifetime value, or LTV, is the total revenue you can expect from one customer over the whole time they do business with you. A simple version multiplies average job value by jobs per year by years they stay. It tells you what a new customer is really worth, beyond the first job.
Key Takeaways
- Simple formula: average job value × jobs per year × years as a customer.
- The first job is usually a small slice of what a customer is worth.
- LTV should be several times your customer acquisition cost.
- A missed call from a new customer costs the lifetime, not just the first job.
How Customer Lifetime Value Works
Most businesses think about the job in front of them. LTV asks a bigger question: over all the years this person stays a customer, how much will they spend?
LTV = average job value × jobs per year × years as a customer
Each piece comes from your own records:
- Average job value. Total revenue divided by total jobs.
- Jobs per year. How often a typical customer comes back. An HVAC customer might be twice a year for maintenance. A roofer might be once a decade.
- Years as a customer. How long they stick around before moving or switching.
A more careful version uses profit instead of revenue, by multiplying by your margin. Start with the simple version. It is enough to change how you think.
Example of Customer Lifetime Value
A plumbing company looks at its books. The average job is $400. A typical household calls about 1.5 times a year. Customers who have a good first experience stay about six years.
$400 × 1.5 × 6 = $3,600
That is what a new plumbing customer is worth, on average, over the relationship. Not $400. Nine times that.
Now apply it to a missed call. If a first-time caller hangs up and calls a competitor, the plumber did not lose a $400 job. He lost a $3,600 customer. Fifteen missed first-time callers in a month is not $6,000 of work. It is $54,000 of lifetime revenue that went somewhere else. Run the numbers for your own business in the missed call calculator.
What People Get Wrong About Customer Lifetime Value
Owners price their answering and follow-up decisions against the first job. "It's a $400 service call, I'm not paying much to catch it." That logic is why abandoned calls feel cheap and are not. The first job is the entry ticket. The lifetime is the prize.
The other mistake is treating LTV as fixed. It is not. Answer the phone fast, show up on time, do the work well, and customers stay longer and call more often. Every piece of the formula responds to service quality. LTV is less a measurement than a scoreboard.
LTV vs. CAC vs. Average Job Value
- Average job value is what one job brings in.
- LTV is what one customer brings in over all their jobs.
- Customer acquisition cost is what it cost to win that customer.
The ratio of LTV to CAC is the health check. A common rule of thumb is 3 to 1 or better. When LTV is high and CAC is low, growth is cheap. When they are close together, every new customer is barely worth winning.
Why It Matters
LTV is the number that makes the case for answering every call. A $59 a month AI receptionist looks like an expense if a call is worth $400. It looks like the best money you spend if a first-time caller is worth $3,600. The same logic applies to speed to lead, follow-up, and first call resolution. They all protect the lifetime, not just the job. See the cost of missed calls for the full picture.
The Bottom Line
Customer lifetime value is the total revenue one customer brings over the whole relationship, roughly job value times jobs per year times years. It is usually many times the first job. Once you know that number, answering every call and treating every first-time caller like a long-term customer stops being good manners and becomes good math.
Frequently Asked Questions
- How do you calculate customer lifetime value?
- The simple way is to multiply three numbers: the average amount a customer spends per job, how many jobs they book in a year, and how many years they stay with you. A customer who spends $400 per visit, twice a year, for five years has an LTV of $4,000. More careful versions subtract your costs to get profit instead of revenue, but the simple version is enough to make good decisions.
- Why does customer lifetime value matter for a small business?
- Because it changes what you are willing to do to win a customer. If you think a new customer is worth one $400 job, you will not spend much to get them. If you know they are worth $4,000 over five years, answering every call, following up fast, and doing the first job well all look like bargains. LTV is the number that justifies good service.
- What is a good LTV to CAC ratio?
- A common rule of thumb is 3 to 1 or better. That means a customer should be worth at least three times what it cost to acquire them. Below that, you are spending too much to win customers or not keeping them long enough. Well above it, you can probably afford to invest more in growth.
Related Terms
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