Email List Churn Statistics 2026: The Rate Most Reports Miscalculate

The best current campaign benchmark is a 0.22% median unsubscribe rate per send, measured by MailerLite across 3.6 million campaigns from 181,000 approved accounts between December 2024 and November 2025. That is not a complete email-list churn rate. True churn also includes hard bounces, suppressions, and deliberate removal of inactive addresses—and it must be measured over a stated period.

Most pages quote “email lists decay by X% per year” without publishing a reproducible denominator. This page takes the opposite approach: define the event, show the formula, disclose the dataset, and label scenarios as scenarios.

Email list churn statistics at a glance

Measure	Current figure	What it actually measures
Median unsubscribe rate per campaign	0.22%	3.6M MailerLite campaigns, Dec. 2024–Nov. 2025
Prior-year unsubscribe rate in the same report	0.08%	MailerLite's 2024 comparison
Industry range in MailerLite data	0.09%–0.40%	Legal at low end; photo/video at high end
Weekly-send unsubscribe scenario at 0.22%	10.8% over 52 sends	Mathematical scenario; excludes gains, bounces, and suppressions
Monthly-send unsubscribe scenario at 0.22%	2.6% over 12 sends	Same limitation
Nonprofits counting a one-month opener as active	88%	M+R Benchmarks participants' activity definitions
Nonprofits counting a one-year opener as active	52%	Same survey; shows definition variance

The last two figures expose the main problem: organizations do not agree on when a quiet subscriber has “churned.” One team suppresses after 90 days without a click; another retains an address for a year. Both can publish an internally correct churn rate and mean different things.

What is email list churn?

Email list churn is the share of emailable subscribers lost during a defined period. A useful operating definition includes:

• recipients who explicitly unsubscribe;
• addresses that hard-bounce and become undeliverable;
• spam complainers who are suppressed;
• inactive recipients the sender deliberately suppresses or deletes;
• accounts removed for policy, consent, or data-quality reasons.

It should not silently include net subscriber growth. Acquisition can hide a leaking list: adding 1,500 addresses while losing 1,000 produces positive net growth, but churn still removed 1,000 people.

Use this formula:

gross churn rate = unique emailable contacts removed during period / emailable contacts at start of period

Then report each component separately. A high deliberate-suppression rate can reflect good hygiene; a high complaint rate can threaten deliverability. Collapsing both into one number removes the decision value.

What is the average unsubscribe rate?

MailerLite's 2026 benchmark report analyzed more than 3.6 million campaigns from 181,000 approved accounts. The collection window ran from December 2024 through November 2025, and the report uses medians. Across industries, the median unsubscribe rate was 0.22% per campaign.

The range mattered:

Example industry	Median unsubscribe rate per campaign
Legal	0.09%
Media	0.10%
Software and web apps	0.20%
Author	0.31%
Telecommunications	0.34%
Photo and video	0.40%

These figures are descriptive, not targets. A low unsubscribe rate can mean a beloved publication—or a disengaged audience that never opens enough to leave. A higher rate can follow a deliberate reactivation campaign or clearer unsubscribe controls.

MailerLite reported that the overall median rose from 0.08% in 2024 to 0.22% in 2025. Its interpretation is plausible: Gmail's more visible unsubscribe controls make leaving easier. The change could also reflect shifts in account mix, frequency, and measurement. The report is observational and does not isolate causality.

How does per-send unsubscribe compound?

A per-campaign rate cannot be multiplied naively by sends because each campaign starts with a slightly smaller population. The survival calculation is:

remaining subscribers = starting subscribers × (1 - rate) ^ sends

If a hypothetical list starts with 10,000 subscribers and every campaign produces exactly the MailerLite median 0.22% unsubscribe rate:

Cadence	Sends per year	Subscribers remaining	Unsubscribed in scenario
Monthly	12	9,739	261 (2.6%)
Weekly	52	8,918	1,082 (10.8%)
Twice weekly	104	7,953	2,047 (20.5%)
Daily	365	4,477	5,523 (55.2%)

This table is a sensitivity model, not a market forecast. Real unsubscribe rates change by campaign, the same people cannot leave twice, and new subscribers enter throughout the year. It isolates one truth: cadence multiplies opportunities to lose relevance.

The conclusion is not “send less.” It is “earn each send.” A daily briefing can have lower per-send churn than an erratic monthly promotion because habit and expectation matter.

Why unsubscribe rate is not total churn

Bounces

People leave jobs, abandon domains, mistype addresses, and let mailboxes fill. Hard bounces should be removed quickly. Soft bounces need a documented retry and suppression policy. A 2025 SafetyMails study says it analyzed almost one billion email addresses across 23 industries, illustrating the scale of list-quality problems, but its public landing page does not expose enough result detail to turn that population into a universal decay rate. We therefore do not quote one.

Inactive suppression

M+R Benchmarks' nonprofit study makes the definition problem visible. In its participant data, 88% counted someone who opened within the previous month as active, 80% counted an opener within six months, and only 52% still counted a person who opened once within a year. Open tracking is itself distorted by privacy protection, so mature programs increasingly combine clicks, site actions, donations, purchases, and replies.

Removing inactive recipients can raise reported churn while improving sender reputation. That is healthy loss: the address leaves the sending population before it becomes a complaint or persistent non-engagement signal.

Spam complaints

A complaint is both churn and a reputation event. Google's Postmaster Tools measures reported spam against mail delivered to active Gmail recipients, and Google tells bulk senders to keep spam rates below 0.3%, while recommending they stay below 0.1%. Our spam complaint rate guide explains why the denominator differs from an ESP dashboard.

Consent and policy removals

An address may remain technically deliverable but no longer be lawful or appropriate to contact. Consent withdrawal, retention limits, region changes, and customer requests should remove or suppress it. These losses belong in governance reporting even when they do not appear in the campaign unsubscribe column.

How much acquisition replaces churn?

To keep a list flat, gross additions must equal gross removals. To grow it, additions must exceed both churn and the desired net gain.

required additions = starting list × churn rate + desired net new subscribers

For a 10,000-person list with 15% annual gross churn and a goal of 10% net growth:

• replace 1,500 churned contacts;
• add another 1,000 for net growth;
• acquire 2,500 valid, consented subscribers in total.

This is why acquisition dashboards should report retained subscribers after 30, 90, and 180 days. A channel that adds 1,000 addresses and keeps 800 can outperform one that adds 2,000 and keeps 500, even before deliverability costs.

A better churn dashboard

Track these monthly and on a rolling 12-month basis:

Metric	Formula	Decision it supports
Explicit unsubscribe rate	unique unsubscribes / delivered	Content and cadence
Hard-bounce rate	unique hard bounces / attempted	Acquisition quality
Complaint rate	complaints / provider-specific delivered denominator	Reputation risk
Inactive suppression rate	newly suppressed inactive / starting emailable	Hygiene policy
Gross churn	all unique removals / starting emailable	Replacement need
Net list growth	ending emailable - starting emailable	Scale
90-day retained acquisition	new contacts still emailable and engaged / contacts acquired	Channel quality

Never add component rates without deduplicating people. One address can bounce after clicking unsubscribe or be suppressed after complaining; gross churn counts the contact once.

For the recipient-side view of the same exit decision, see how to manage email subscriptions. It explains why a clean, visible unsubscribe is a list-health mechanism rather than a failure to conceal.

Editorial methodology

Sources were reviewed July 30, 2026. We prioritized platform datasets that publish collection windows and sample sizes, regulator or mailbox-provider guidance, and explicit formulas. We did not repeat the common “22.5% annual decay” claim because the versions we found lacked a traceable current primary dataset. Scenario tables are calculations from a stated 0.22% assumption, not observed cohorts.

FAQ

What is a good email list churn rate?

There is no universal rate because teams include different events and use different periods. Start by comparing each component with itself over time. For explicit unsubscribes, MailerLite's current median is 0.22% per campaign across 3.6 million campaigns.

How fast do email lists decay?

No current public study supports one universal annual percentage for all lists. Decay depends on job turnover, domain quality, acquisition source, cadence, suppression policy, and audience type. Publish your own gross churn definition and rolling 12-month result.

Does unsubscribing hurt a sender?

An unsubscribe is usually healthier than a complaint. It removes someone who no longer wants the mail. Hiding the exit can turn ordinary churn into spam reports and reputation damage.

Should inactive subscribers be deleted?

Usually they should first enter a defined re-engagement and suppression process. Whether they are later deleted depends on consent, retention, analytics, and legal requirements. Do not keep sending indefinitely just to preserve list size.