B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
23%
23% -- annual email address decay rate for B2B email lists (2026)
23% of email addresses in a typical list go bad every year.
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
23%
Unit
Percentage
Data Vintage
2026
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
75
Source Trust
60
Citation Chain
60
Independence
30
Methodology
45
Freshness
95
Source
ZeroBounce
Primary
Tier B
https://www.datamagnet.co/post/b2b-data-decay-accuracy-benchmarks-2026/ ↗
Source Article
B2B Data Decay in 2026: Real Accuracy Benchmarks
Disclosure: This article is published by Datamagnet. Vendor claims are self-reported unless otherwise noted.
How Fast Does B2B Contact Data Decay in 2026? Accuracy Benchmarks That Matter
In 2026, a typical B2B contact database loses 2.1% of its records a month, compounding to roughly 22.5% a year (H…
Original Research
ZeroBounce
· Original study ↗
Methodology
Based on processing more than 11 billion verified addresses; down from 28% in 2024
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
B2B email lists: 23% annual email address decay rate. Source: ZeroBounce (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/email-addresses-go-bad-annually-2026
HTML Embed
<blockquote cite="https://lighthousedata.io/data/email-addresses-go-bad-annually-2026" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>23%</strong> -- annual email address decay rate for B2B email lists<br><small>Source: ZeroBounce (2026) · <a href="https://lighthousedata.io/data/email-addresses-go-bad-annually-2026" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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