If an average client relationship is worth several thousand dollars over its life, then the marketing that acquires one for a few hundred is cheap, and the operational slip that loses one is expensive in a way the monthly view never shows. Businesses that only see first-transaction value systematically underspend on acquisition and underinvest in retention, because both look like costs instead of trades.
Average job value, times jobs per year, times the years a typical client stays, minus the cost of serving them. Precision can come later; even the rough number reorders priorities. It is also why retention platforms earn their keep: the roughly 95 percent client retention Book With NAV holds is not a vanity stat, it is compounding LTV.
LTV grows three ways: clients stay longer, buy more often, or buy more per visit. Reliability drives the first, lifecycle follow-up drives the second, and honest recommendations drive the third. Squeezing, upsells nobody wanted, price surprises, grows the quarter and shrinks the lifetime.
Start with averages from your last two years of invoices. The point is decision-grade, not audit-grade. Refine once the systems capture clean repeat-purchase data.
A common healthy shape is lifetime value several times the cost of acquiring the customer. Below that, growth burns cash; far above it, you are probably underspending on growth.
Retention. Small improvements in how long clients stay compound across every future year, and retention is mostly an operations and follow-up problem, which means it is buildable.
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