What an email address is actually worth

Most organizations evaluate email acquisition by what happens in the first few weeks after someone subscribes. 

That’s a problem, and new data backs it up.

NextAfter’s “The True Lifetime Value of an Email Address” tracked more than 17 million subscribers acquired through paid campaigns across multiple nonprofit organizations for 36 months, and the results suggest you have to be patient.

Most donors don’t show up right away
Of the 17.1 million subscribers in the study, just 2.6% gave immediately upon acquisition (“instant donors”). In my experience, this is to be expected.

But 10.3% gave later, and these “downstream donors” made their first gift an average of 891 days after subscribing, nearly two and a half years.

That’s four times as many donors as those who gave right away.

The read: A 90-day campaign report captures less than a quarter of the donors your investment will eventually produce.

Downstream donors produce a better return
Instant donors gave more per person ($72.40 vs. $25.46 for downstream donors over 36 months). 

Because there were four times as many downstream donors, the cost to produce each one was far lower. The net ROI on downstream donors was 929%, compared with 138% for instant donors.

The read: You pay the same $5.96 per subscriber whether they give immediately or two years from now. 

At 90 days, most of that spend looks like a loss, but at 36 months the late arrivals turn it into a strong return.

An email address pays for itself
Across the study, each acquired email address generated $9.61 in donor revenue over 36 months against an average acquisition cost of $5.96. 

Projected over the full estimated donor lifespan, that value rose to $13.93.

The read: On average, email acquisition returned more than it cost within three years, before even accounting for non-donation value like advocacy actions or event attendance.

What this all means for your program
Extend your evaluation window and track by source. A 90-day report captures less than a quarter of the donors your investment will eventually produce. 

Unique source codes and a shared source dictionary make it possible to revisit acquisition cohorts at 12, 24, and 36 months and learn which sources produce the best long-term donors.

Invest in what happens between signup and first gift. A subscriber who takes 891 days to give usually isn’t sitting idle the whole time. 

They’re reading your emails and learning about your mission. Your welcome series, cultivation content, and non-ask touches all help close that gap.

The bottom line
Most acquisition budget conversations end at cost per signup. This study says that’s only the beginning of the math. 

If your organization is planning its 2027 acquisition budget, the case for investing in email list growth is stronger than any 90-day campaign report can show.

Check our events list for more or reply to this email to submit one for consideration.

‘Til next time!
Sara