What it means
Winning a new client usually costs more than keeping an existing one. There are sales effort, proposals, onboarding time and often discounts, whereas a loyal client tends to buy more over time and recommends the firm to others.
The standard way to measure retention is to count the clients at the start of a period, count how many of those are still there at the end, and express the result as a percentage. New clients won during the period are removed from the calculation so they do not hide losses.
Retention can also be measured in revenue terms. Revenue retention asks how much of last year's income from existing clients was kept this year, which captures the effect of clients buying less or more, not just leaving or staying.
The opposite number is churn, the percentage of clients lost. A 90% retention rate equals 10% churn, and small changes in the rate have a big effect on lifetime value.
Retention is influenced by service quality, communication, pricing, results and the strength of the personal relationship. Regular reviews, early warning signs such as late payment or reduced contact, and a clear process for dealing with complaints all help.
For professional firms and subscription businesses, retention is often the headline metric, and investors look at it when valuing the company. A business with high retention can forecast future revenue with more confidence.
In practice
Real-world examples
Example 1
A marketing agency calculates that it retained 85% of its clients last year. When it learns that the average client stays for around six years, it sets a target to lift retention to 90% by introducing quarterly business reviews. The partners also agree to record the reason every time a client leaves.
Example 2
A payroll bureau notices that clients who leave in their first year usually report slow onboarding. It improves its first-90-days process and retention among new clients improves from 70% to 82%. The change costs little but protects thousands of dollars of annual fees.
Example 3
A consulting firm with $2,000,000 of annual recurring fees from existing clients keeps $1,800,000 of them the next year. Its revenue retention is $1,800,000 / $2,000,000 = 90%, even though it lost only two clients. The partners realise that a client count alone would have hidden a loss of $200,000 in fees.
Think of it
Client retention is keeping the customers you have-making sure they stay with you.
Formula
Calculation
Client retention rate = ((Clients at end of period - New clients won in period) / Clients at start of period) x 100
An accounting firm begins the year with 200 clients. It ends the year with 190 clients, of whom 30 are new. Retention rate = ((190 - 30) / 200) x 100 = (160 / 200) x 100 = 80%. This means it lost 40 of its original 200 clients, which is churn of 20%.Case study
Seen in the real world
Ironbridge Bookkeeping is an illustrative, fictional practice that had grown quickly by winning around 40 new clients a year, but its owner felt permanently overworked. She suspected that growth was masking a leak.
Calculating the numbers, she found that she began the year with 150 clients and ended with 170, of which 45 were new, so retention was (170 - 45) / 150 = 83%. The 17% churn meant she was replacing about one in six clients every year. That was a heavy load for a one-person practice, and it explained why the work never seemed to ease.
Exit conversations showed that most departures came from clients who felt they only heard from her at tax time. She introduced a mid-year check-in call and a short quarterly report, and in the illustrative following year retention rose to 91% while she took on fewer new clients. She now reviews the retention figure at the same time as the monthly profit report, and she sets a target for each. Each quarter she reads three exit notes in full to see what could have been done differently, which has turned out to be the most valuable hour of her review.
Watch out
Common mistakes
- Counting new clients in the end figure without removing them, which overstates retention.
- Focusing only on client numbers and ignoring revenue, so that the loss of a few large clients goes unnoticed.
- Waiting until a client leaves before asking for feedback.
Questions
People also ask
What is a good client retention rate?
It varies by sector, but many professional service firms aim for 85% to 95%, and subscription businesses often look for similar levels. Always compare against firms of a similar size and service type.
How is retention different from loyalty?
Retention is a measured outcome of whether clients stay, while loyalty is an attitude that may or may not show up in the numbers.
How does retention affect valuation?
Buyers pay more for firms with stable, long-term clients because future revenue is easier to predict. It also lowers the risk that the revenue disappears when the owner steps back.
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