Churn Rates are Non-Linear

Nearly 45 percent of respondents of 2,500 people surveyed by EFTM about service provider switching behavior said they had not switched telcos in more than five years. That is not as unusual a figure as you might think. 

source: EFTM

In the U.S. market, churn rates have been steadily dropping. For at least three of the four largest U.S. mobile service providers, churn typically is perhaps 1.5 percent monthly, sometimes less. 

Roughly speaking, a churn rate of 1.5 percent a month works out to be about 18 percent annual churn. The caveat is that churn is non-linear: high rates in the early months of an engagement, then lower churn over time. 

source: Profitwell

The key concept, when evaluating churn, is to recognize that most customer churn happens relatively soon in a supplier relationship. Note that churn rates are very high early in the relationship, but becoming relatively stable after about six months. That is the reason the Australian data collected by EFTM, which might lead you to assume a 20-percent rate effectively means all the customers acquired in a particular month are gone in five years, turns out to be incorrect. 

source: evergage

In each new customer cohort, churn rates drop dramatically after perhaps two months, so the average churn rate is not reflective of the lifecycle churn rate. 

After five years, at  20 percent annual churn, about 65 percent of the cohort have left, but 35 percent remain. More significantly, after 10 years, perhaps 10 percent of the original cohort remain  customers. 

source: Chaotic Flow

So the results of the EFTM survey are not unusual. After five years, at 20 percent annual churn, or about 1.7 percent monthly, one would expect 35 percent of customers to remain, where the EFTM survey found 45 percent remaining. 

In my own case I have had a continuous relationship with one mobile service provider for more than 20 years. Generally speaking, higher average revenue accounts have less churn than lower ARPU accounts. Customers on contracts churn less than customers who can leave after any particular billing period. 

And the customer on-boarding process can be a key enabler of lower churn for new customers, who are not only learning how to use a service or a device offered by a particular provider, but might also be testing whether a particular plan, coverage or device  is right for them.