85+ Email Marketing ROI Statistics for 2026: Returns, Benchmarks, and Channel Comparisons

ByAvery Jordan

The latest email marketing ROI statistics show returns between $36 and $42 for every $1 spent, according to Litmus and Omnisend data, making it the highest-ROI digital marketing channel available to businesses today.

That figure has held for several years, yet the mechanics behind it are shifting fast: automation now drives 30% of revenue from just 2% of sends, AI-powered personalization is widening the gap between average and top performers, and deliverability has replaced creative as the primary constraint on returns.

This article covers what the current data actually shows across ROI benchmarks, industry breakdowns, channel comparisons, automation performance, personalization impact, B2B results, measurement challenges, and the market context driving continued investment.

Quick answer: The average email marketing ROI is $36–$42 per $1 spent (Litmus, 2025; Omnisend, 2026), with retail and ecommerce reaching $45 per dollar and top-performing automated programs exceeding $70 per dollar.

Key stats at a glance:

  • 35% of marketing leaders receive $10–$36 for every $1 spent on email; 30% receive $36–$50 (Litmus State of Email, 2025)
  • Automated emails account for just 2% of sends but drive 30% of email revenue (Omnisend 2026 Ecommerce Marketing Report)
  • 41% of marketers rank email as their most effective channel, ahead of social media and paid search at 16% each (Omnisend, 2026)
  • Email click-to-conversion rates jumped 53% year-over-year, rising from 5.9% to 9% in 2025 (Omnisend 2026 Ecommerce Report)
  • Advanced AI adopters are 75% more likely to achieve ROI above 45:1 from their email campaigns (Litmus State of Email, 2026)

Email Marketing ROI Statistics: The Core Benchmarks

The most important context for email ROI figures is that they span a wide range depending on list quality, automation maturity, and measurement approach. The average figure cited by Litmus and Omnisend is a starting point, not a ceiling.

  1. The average email marketing ROI is $36–$42 for every $1 spent, a 3,600%–4,200% return, according to data from Litmus, the DMA, and Omnisend (2025–2026).
  2. According to the Litmus State of Email 2025 report, 35% of marketing leaders receive $10–$36 per $1 spent, 30% receive $36–$50, and 5% receive more than $50 per $1 spent.
  3. 18% of companies achieve email marketing ROI above $70 for every $1 invested, a return that exceeds 7,000% (Barilliance, 2025).
  4. The average email marketing ROI for large businesses sits at 44:1 (4,400%), as larger subscriber lists scale the revenue side without proportional cost increases (Marketful, 2026).
  5. Only 12.5% of companies believe they measure email marketing ROI adequately, meaning most programs are likely underreporting their actual returns (Litmus State of Email, 2026).
  6. 22% of marketing professionals report struggling to measure or prove email ROI, a figure that declined from 36% who did not measure ROI at all in 2023, showing steady improvement (Litmus State of Email, 2025).
  7. Companies achieving ROI between 36:1 and 50:1 dedicate 25%–50% of their marketing team's time specifically to email, according to Litmus's 2025 State of Email report.
  8. 38% of marketers say measuring return on investment is the most effective way to evaluate their email program performance (Ascend2, cited in Litmus benchmarks, 2025).

Key Email Marketing ROI Statistics by Source

The table below captures the range of email marketing ROI statistics across credible primary sources. Different methodology, scope, and user bases explain the variation; no single figure should be taken as universal.

Source-comparison table: Email marketing average ROI by primary source

Source

Reported Figure

Publication Date

Sample Scope / Method Note

Litmus / Validity

$36 per $1 spent

2025 State of Email

~500 global marketing professionals surveyed

Omnisend (US merchants)

$76 per $1 spent

2026 Ecommerce Marketing Report

Internal platform data, US paid-plan merchants

Constant Contact

$38 per $1 spent

2024 industry benchmark

Platform user data across SMB accounts

Omnisend (global average)

$40 per $1 spent

2026 Ecommerce Marketing Report

Internal platform data, global merchants

DMA (UK)

$42 per $1 spent

2024 Marketer Email Tracker

UK-based marketers survey

These figures are not contradictory. They reflect different geographies, program maturity levels, and cost-accounting approaches.

For planning purposes, $36–$42 represents the defensible global average; US ecommerce programs with optimized automation consistently outperform that range.

In practice, teams with strong deliverability, behavioral segmentation, and automated flows commonly report returns well above the global average, while brands still relying on batch-and-blast campaigns to unverified lists often fall below it.

Email Marketing ROI by Industry

Industry benchmarks let you compare returns against relevant peers rather than the broad global average. The variance across sectors is substantial.

  1. Retail, ecommerce, and consumer goods see an average email ROI of 45:1 ($45 per $1 spent), above the global average of $36–$42 (Litmus State of Email, 2025).
  2. Marketing, PR, and advertising agencies see an average email marketing ROI of 42:1 (Litmus State of Email, 2020 survey, industry vertical data; most recent industry-level Litmus benchmark available).
  3. Software and technology companies report an average email ROI of 36:1 (Litmus, 2020 State of Email; the tech vertical figure has not been significantly revised in later reports).
  4. Media, publishing, events, sports, and entertainment companies see an average email ROI of 32:1 (Litmus, 2020 State of Email; industry-level comparison data).
  5. B2B email marketing delivered an average return of $36–$42 per $1 spent in 2025, consistent with the global average, though multi-touch nurture sequences substantially outperform single-send outreach (Verified.email, citing Litmus and EmailMonday, 2026).
  6. The highest converting ecommerce industries in 2025 by email campaign conversion rate were games (15.1%), food and drink (14.9%), and health (14.8%) (Omnisend 2026 Ecommerce Marketing Report).
  7. Beauty and cosmetics showed the largest year-over-year open rate improvement among ecommerce verticals, rising from 20.5% to 23.8% in 2025 (Omnisend, 2025 data).
  8. The click-to-conversion rate for the games industry rose from 11.6% in 2023 to 17.61% in 2025, one of the sharpest gains recorded across any ecommerce segment (Omnisend, 2025 data).

Industry ROI and engagement comparison table

Industry

Average Email ROI

Notable Benchmark

Source / Year

Retail, ecommerce, consumer goods

45:1

Highest open-rate growth in beauty (+3.3pp)

Litmus 2025; Omnisend 2026

Marketing and ad agencies

42:1

Newsletter ROI leading driver for agencies

Litmus 2020 (vertical data)

Software and technology

36:1

Customer engagement email type drives highest B2B ROI

Litmus 2020

Media, publishing, sports

32:1

Highest volume of transactional-driven sends

Litmus 2020

Global average (all sectors)

$36–$42:1

Range consistent across Litmus, DMA, Omnisend

Multiple 2024–2026 reports

Note: Industry-level ROI data at the most granular level comes from Litmus's 2020 State of Email survey of more than 2,000 marketing professionals.

Litmus has updated global averages through 2025 but has not published revised industry-level breakdowns at the same granularity. These figures remain the most credible published benchmarks for sector comparison.

Email Marketing ROI vs. Other Marketing Channels

The ROI superiority of email over paid digital channels is among the most consistently reported findings in marketing research. The structural reason is simple: email reaches an opted-in audience at near-zero marginal cost per additional send.

  1. Email marketing delivers $36–$42 per $1 spent, compared with approximately $2 per $1 for paid search (Google Ads) and $2.80 per $1 for social media advertising (Litmus, Omnisend, CodeCrew 2026 analysis).
  2. Email marketing outperformed banner ads and SMS by 108% in revenue attribution in 2024, and outperformed organic social media posts by 13% and social media ads by 11% (Omnisend 2025 Ecommerce Marketing Report).
  3. 41% of marketing professionals rank email as their most effective channel, compared to 16% for social media and 16% for paid search. No other digital channel comes close for marketer confidence, according to Forbes Advisor.
  4. Email's conversion rate of 4.24% from email traffic to purchase compares with 2.49% from paid search and 0.59% from social media (Statista, 2025).
  5. 50% of consumers said they made a purchase directly from an email in 2024, a higher share than from social media posts or social media ads (Omnisend, 2026).
  6. 87% of marketing leaders say email marketing is critical to their company's success, and 87% of marketers plan to increase or maintain email marketing spending despite rising costs in other channels (Salesforce, cited in Shopify 2025 Email Marketing Statistics).
  7. Email is 40 times more effective at acquiring new customers than Facebook or Twitter, according to McKinsey research (2024 citation in multiple industry analyses).
  8. 59% of consumers say marketing emails have influenced their purchase decisions, making email a direct driver of buying intent across the funnel (Marketful, 2026).

Channel ROI comparison table

Channel

Average ROI per $1 Spent

Conversion Rate (to purchase)

Marketer Confidence Rank

Email marketing

$36–$42

4.24%

1st (41% of marketers)

Paid search (Google Ads)

~$2

2.49%

2nd (tied, 16%)

Social media advertising

~$2.80

0.59%

2nd (tied, 16%)

Display advertising

~$1.35

Below 0.59%

Below top 3

These figures show the per-dollar structural advantage of email, but they should not be read as a case against other channels.

Paid search and paid social generate demand and reach new audiences; email converts that demand more profitably because the audience has already opted in and the incremental send cost is minimal.

Email Marketing Automation ROI Statistics

Automation is where the largest per-email gains currently sit. The gap between automated and non-automated email performance is no longer marginal: it is an order of magnitude.

  1. Automated emails drive 30% of all email-generated revenue despite accounting for just 2% of total email sends (Omnisend 2026 Ecommerce Marketing Report).
  2. Automated emails generated $2.87 per email sent in 2025, compared to $0.18 per email for scheduled campaign sends, a 16x difference in revenue per send (Omnisend 2026 Ecommerce Marketing Report).
  3. In 2024, automated email workflows produced returns 30 times higher than one-off email campaigns, according to Omnisend's ecommerce platform data (Omnisend, 2025).
  4. Automated emails had 52% higher open rates, 332% higher click rates, and 2,361% better conversion rates compared to scheduled campaign emails in 2024 (Omnisend 2025 Ecommerce Report).
  5. Click-to-conversion rates jumped 53% year-over-year in 2025, rising from 5.9% to 9%: a shift driven primarily by automation and behavioral targeting improvements (Omnisend 2026 Ecommerce Marketing Report).
  6. 82% of marketers use automation to create triggered emails, and triggered emails generate 8 times more opens than typical bulk emails (Campaign Monitor, 2024).
  7. Automated emails drove 320% more revenue than non-automated emails in 2024 (Campaign Monitor, 2024).
  8. Welcome emails generate 320% more revenue per email than standard promotional emails and carry an average open rate of 82% (GetResponse, 2025 email benchmark report).
  9. Abandoned cart, welcome, and browse abandonment emails together accounted for 87% of all automated email revenue orders in 2024 (Omnisend 2025 Ecommerce Marketing Report).
  10. Abandoned cart emails achieve an average open rate of 50.5%, a click rate of 6.25%, and a conversion rate of 3.33%, with top-performing brands reaching 7.69% conversion (Klaviyo, 2024 ecommerce benchmark data).
  11. Abandoned cart emails recover an average of $3.45 per recipient (Klaviyo, 2024 ecommerce benchmarks).
  12. Back-in-stock emails delivered a 59.19% open rate and a 5.34% conversion rate in 2024, back-in-stock send volume rose 4x year-over-year (Omnisend 2025 Ecommerce Report).
  13. Birthday emails achieved a 43.3% open rate and a 14.3% click-to-conversion rate in 2024 (Omnisend 2025 Ecommerce Report).
  14. Back-in-stock emails produced the highest average order value for automated email types in 2025, birthday messages produced an average order value more than 4x higher than the program average at $744.37 per order (Omnisend 2026 Ecommerce Marketing Report).
  15. Order and shipping confirmation emails convert 22 times better than campaign emails, confirming that transactional sends represent a significant and often underused revenue opportunity (Omnisend, citing 2023 data).
  16. Automotive sector automated emails return $5.47 per recipient versus $0.16 for standard campaigns in the same industry, a 34x difference at the vertical level (Omnisend, 2024 ecommerce sector data).
  17. Klaviyo's 2026 ecommerce benchmark data shows automated flows deliver over 3x higher click rates and approximately 13x higher order rates than one-off campaigns, generating around 41% of email revenue from just 5.3% of total sends.
  18. 52% of marketers reported their email marketing ROI doubled in 2024 compared to the prior year, with automation cited as the primary driver (Statista, 2024 survey data).

Automation performance benchmark table

Automation Type

Average Open Rate

Average Click Rate

Average Conversion Rate

Revenue per Email

Welcome email

82% (GetResponse 2025)

16.60% (GetResponse 2025)

High (1 in 2 clickers purchase)

$2.87+ (Omnisend 2026)

Abandoned cart

50.5% (Klaviyo 2024)

6.25% (Klaviyo 2024)

3.33%–7.69% (Klaviyo 2024)

$3.45 per recipient (Klaviyo 2024)

Back-in-stock

59.19% (Omnisend 2025)

N/A

5.34% (Omnisend 2025)

Above campaign average

Birthday / anniversary

43.3% (Omnisend 2025)

N/A

14.3% click-to-conversion

$744.37 avg order (Omnisend 2026)

Browse abandonment

Part of top-3 automation

Above campaign averages

Above campaign averages

Part of 87% automated revenue

Brands with even basic automation running, welcome sequence, abandoned cart, post-purchase, consistently outperform peers relying solely on scheduled campaign sends.

The data suggests that building these flows before investing further in broadcast newsletters is the higher-ROI priority for most programs.

Email Marketing Personalization and Segmentation ROI Statistics

Segmentation and personalization produce the highest per-email returns in the channel when executed against real behavioral and preference data.

  1. Segmented campaigns generate 760% more revenue than non-segmented campaigns, a figure cited consistently by Campaign Monitor across 2024 and 2025 data (Campaign Monitor, 2025).
  2. 90% of email marketing professionals report that subscriber segmentation to deliver targeted messages increases performance for marketing emails (Litmus State of Email Trends, 2024).
  3. Personalized emails achieve 29% higher open rates and 41% higher click-through rates than non-personalized messages (Mailmend, 2026, citing multiple ESP benchmark sources).
  4. Personalized subject lines increase email open rates by 10%–26% across industries, the range reflects variation by industry, list size, and what "personalization" encompasses (Campaign Monitor 2025; Adobe for Business 2025).
  5. More than 80% of marketers reported at least some performance improvement when using subject line personalization (Litmus State of Email Trends, 2024).
  6. 80% of customers are more likely to purchase from brands that offer personalized experiences throughout their communications and shopping journey (Litmus State of Email Trends, 2024).
  7. Marketing emails sent in response to behavioral triggers generate 10 times greater revenue than other marketing email types (Validity / Litmus, State of Email in 2024 report).
  8. Segmented and personalized campaigns generate 58% of all email revenue for brands using advanced segmentation (Mailmend, 2026, citing ESP platform data).
  9. 52% of consumers say they would switch brands if emails lack personalization, making personalization a retention factor as much as an acquisition one (Mailmend, 2026).
  10. One in three people who click on an automated message makes a purchase; the corresponding rate for scheduled campaign messages is one in 18 (Omnisend 2025 Ecommerce Report).
  11. One in two people who click on automated welcome or abandoned cart emails end up making a purchase, the highest conversion efficiency of any email type (Omnisend 2025 Ecommerce Report).
  12. 65% of marketers used subject line personalization in more than half of their email campaigns in 2024; only 9% used no subject line personalization at all (Statista, citing global marketing professional survey, 2024).
  13. Companies using A/B testing on every email see email marketing returns 37% higher than brands that never run A/B tests (Litmus, 2025 data).

Segmentation and personalization impact table

Tactic

Performance Lift Reported

Source / Year

Segmented vs. non-segmented campaigns

760% more revenue

Campaign Monitor, 2025

Personalized subject lines

10%–26% open rate increase

Campaign Monitor / Adobe 2025

Behavioral trigger emails

10x more revenue than non-triggered

Validity / Litmus 2024

Personalized emails (overall)

29% more opens; 41% more CTR

Mailmend, 2026

Automated welcome email (vs. campaign)

1 in 2 clickers buy (vs. 1 in 18)

Omnisend 2025

A/B testing (every email vs. never)

37% higher ROI

Litmus 2025

AI and Email Marketing ROI Statistics

AI adoption in email marketing shifted from experimental to operational between 2024 and 2026. The performance data on AI-assisted programs now shows a measurable ROI gap.

  1. Advanced AI adopters in email marketing are 75% more likely to achieve ROI above 45:1 than non-adopters (Litmus State of Email, 2026).
  2. Brands using AI-driven personalization report up to 42% higher revenue, with click-through rates exceeding 13%: an improvement that alone can lift overall email ROI by nearly 20% (Verified.email, citing Litmus and EmailMonday, 2026).
  3. AI-powered email personalization led to a 13% increase in click-through rates and a 41% rise in revenue compared to non-AI approaches in a 2022 Adobe analysis, a baseline figure that subsequent studies have confirmed and extended (Adobe for Business, cited in Omnisend 2026 statistics).
  4. 63% of marketers now use AI for at least one element of their email marketing program (CodeCrew, 2026 email marketing stats).
  5. 34% of marketers use generative AI specifically to write email copy, making copy creation the most common AI application in email marketing (Litmus State of Email Design, 2023; consistent with 2024 follow-up surveys).
  6. 66% of marketers use AI to optimize send times, ensuring emails reach recipients during peak engagement windows (Statista, 2025 AI in email marketing survey).
  7. 50.7% of US and EU marketers believe AI is more effective than traditional approaches in email marketing (Statista, 2025 survey).
  8. 51% of email marketers use generative AI tools such as ChatGPT; others use Copy.ai (21%), Scalenut (19%), and Jasper (14%) (Litmus State of Email Design, 2023 with consistent 2024 follow-ups).
  9. 39% of email marketing professionals believe AI-driven hyperpersonalization will have the biggest effect on email automation campaigns in the coming years (eMarketer, 2025).
  10. AI product recommendations lift email click rates to 3.75% on average, and 8.79% for top performers, while driving materially higher revenue per recipient (Klaviyo 2026 Email Marketing Benchmarks).

Year-over-year trend table: AI adoption in email marketing

Metric

2023

2024

2025

Marketers using AI for email (any use)

~34%

~51%

63%

AI for copy creation

34%

Increasing

Confirmed primary use case

AI for send-time optimization

Minority

60%+

66%

Marketers confident AI outperforms traditional

N/A

~45%

50.7%

B2B Email Marketing ROI Statistics

B2B email programs produce strong returns, though the measurement approach differs from ecommerce. Lead quality, nurture sequence length, and pipeline velocity matter more than direct purchase attribution.

  1. 42% of B2B marketers say email produces the best results compared to other marketing channels, consistent with the 2023 figure and holding steady (Content Marketing Institute, B2B Content Marketing Trends, 2024).
  2. 81% of B2B marketers use email newsletters as their main form of content marketing, making it the most widely used content distribution channel in the B2B space (Content Marketing Institute, 2024).
  3. 71% of B2B marketers used email newsletters to nurture leads in 2024 (Content Marketing Institute, B2B Content Marketing Trends, 2024).
  4. 73% of B2B buyers prefer that sellers contact them via email, the most welcomed communication channel for professional relationships (Sopro State of Prospecting, 2025).
  5. B2B email marketing was ranked as the second most effective sales and marketing lead source in the B2B space at 32%, behind only in-person events (Sagefrog 2024 B2B Marketing Mix Report).
  6. The median B2B open rate in 2025 sits at 36.7%–42.35%, up from 34.2% in 2024, while click-through rates average 2.0%–4.0%; top-quartile B2B programs achieve 50%+ opens and 10%+ CTR (Verified.email B2B Email Marketing Benchmarks, 2026).
  7. Cold outreach reply rates dropped from 6.8% in 2023 to 5.8% in 2025, signaling rising inbox fatigue for unsolicited prospecting; multi-touch nurture sequences substantially outperform single-send outreach (Verified.email, 2026).
  8. B2B email marketing delivers $36–$42 per $1 spent, consistent with the global average, though outbound-only programs typically see lower returns than inbound-and-nurture hybrid programs (Verified.email, 2026).

B2B vs. B2C email performance comparison table

Metric

B2B Average (2025)

B2C / Ecommerce Average (2025)

Source

Open rate

36.7%–42.35%

30.7% (campaigns); 38% (automated)

Verified.email 2026; Omnisend 2026

Click-through rate

2.0%–4.0%

~2% (campaigns)

Verified.email 2026; Omnisend 2026

Top-quartile open rate

50%+

45%–50% (segmented)

Verified.email 2026

Preferred contact method

73% of buyers prefer email

60% of consumers prefer email

Sopro 2025; Statista 2025

Primary use (email type)

Newsletters, nurture sequences

Promotional, automated triggers

CMI 2024; Omnisend 2025

Email Marketing Global Reach and Usage Statistics

The scale of email as a channel explains why its ROI advantage is self-reinforcing: the more people use email daily, the lower the cost of maintaining access to that audience.

  1. The number of global email users reached 4.6 billion in 2025 and is projected to reach 4.73 billion by the end of 2026, surpassing every prior forecast (Statista / Radicati Group, 2025–2026).
  2. Over 376 billion emails are sent and received every day globally in 2025, a figure expected to climb to 392 billion per day by the end of 2026 and 408 billion per day by 2027, data from Statista shows.
  3. Nearly 100% of email users check their inbox at least once daily; 42% check it three to five times per day, and 28% check it 10–20 times per day (ZeroBounce, 2023; Omnisend 2025 corroborating data).
  4. 58% of users say email is the first thing they check online in the morning, giving well-timed sends a first-look advantage over all other digital channels (Designmodo, 2026 email marketing statistics).
  5. 57% of Gen Z consumers, who hold an estimated $360 billion in buying power, prefer being contacted by brands via email (CodeCrew, 2026 email marketing stats).
  6. 392.5 billion emails are sent and received daily as of 2026, up from 376.4 billion in 2025 (Statista, 2026).
  7. The global email marketing software market reached $10.78 billion in 2025 and is forecast to grow to $12.45 billion in 2026, at a compound annual growth rate of 15.5% (Business Research Company, 2026).
  8. Retail and ecommerce held 29.17% of the global email marketing software market in 2025; healthcare is the fastest-growing vertical by CAGR at 10.99% through 2031 (Mordor Intelligence, 2026).
  9. Small and medium-sized enterprises account for 57.94% of the global email marketing market and are expanding at an 11.03% CAGR between 2026 and 2031 (Mordor Intelligence, 2026).

Email Marketing ROI Measurement Challenges and Deliverability Statistics

A persistent finding across research is that ROI measurement gaps suppress reported returns. Brands that can't accurately attribute email to revenue often undercount what the channel contributes.

  1. Only 12.5% of companies believe they measure email marketing ROI adequately, meaning the majority of programs may be underreporting their actual performance (Litmus State of Email, 2026).
  2. 22% of marketing professionals say they struggle to measure or prove email ROI, down from 36% who did not measure ROI at all in 2023 (Litmus State of Email, 2025).
  3. Global inbox placement rose 3.7 percentage points year-over-year to 87.2% in 2025, driven by reduced missing rates as Gmail, Yahoo, and Microsoft bulk-sender authentication requirements took hold (Validity 2026 Email Deliverability Benchmark Report, covering 2025 data).
  4. Approximately 6.1% of emails globally landed in spam folders in 2025, directly reducing effective ROI for senders with weak authentication or list hygiene (Validity 2026 Email Deliverability Benchmark Report).
  5. 80% of users say they would mark an email as spam after reading only the subject line if the message appears suspicious, underscoring that deliverability is a creative and list-hygiene problem, not only a technical one (Litmus, 2026 trends report).
  6. Apple Mail Privacy Protection now accounts for roughly 50%–60% of all recorded email opens, inflating open rate data and making open rate a less reliable engagement metric for performance evaluation (Litmus Email Client Market Share report, 2025).
  7. 42.3% of recipients delete an email immediately if it does not render properly on mobile, and mobile-unfriendly emails can reduce click rates by up to 50% (Campaign Monitor, 2024, citing Adestra data).
  8. 55% of email opens occur on mobile devices in 2025, with Apple iPhone representing 57.6% of total tracked opens and Gmail webmail accounting for 27.2% (Litmus Email Client Market Share, 2025; InboxAlly 2026).
  9. Unsubscribe rates roughly doubled in 2025 compared to the prior year, part of that increase is attributable to Gmail making the unsubscribe button more prominent, which helps senders maintain cleaner lists and better sender reputation (Robly, 2026).

ROI measurement and deliverability snapshot table

Metric

2025 Figure

Year-Over-Year Change

Source

Global inbox placement rate

87.2%

+3.7pp

Validity 2026 Deliverability Benchmark

Global spam placement rate

6.1%

Declining

Validity 2026 Deliverability Benchmark

Marketers measuring ROI adequately

12.5%

Up from prior years

Litmus State of Email 2026

Mobile email opens share

55%

Consistent multi-year majority

Litmus / InboxAlly 2026

Apple MPP inflation of open rates

50%–60% of opens

Growing annually

Litmus 2025

How These Statistics Were Compiled

Statistics in this article were sourced using a three-tier hierarchy: primary survey publishers and research organizations first (Litmus / Validity State of Email reports, Omnisend Ecommerce Marketing Reports, Klaviyo benchmark data, Content Marketing Institute B2B surveys, Statista market sizing, Mordor Intelligence market research, DMA Marketer Email Tracker), followed by the research organization's own summary of its findings, and established trade press reporting on primary releases where the original publisher was named and verifiable.

No figure older than 2024 appears in this article unless the original source date is stated in the sentence and the figure remains the most current published benchmark for that specific metric (as is the case for Litmus's industry-level ROI breakdown by vertical, last fully published in the 2020 State of Email with 2,000+ respondents).

Statistics aggregators, content farms, and pages citing other aggregators without original sources were excluded.

Where credible sources reported different figures for the same metric, as is the case for average email ROI, both figures are shown alongside their source, scope, and methodology, rather than averaged or silently resolved.

Conclusion

The data across these 91 statistics points to three durable patterns. First, the baseline ROI of email, $36–$42 per $1 spent, has held consistently for several years across multiple independent research sources, driven by the low marginal cost of reaching an opted-in audience.

Second, the gap between average programs and high-performing ones is widening: automation, behavioral segmentation, and AI-assisted personalization are compounding returns in ways that batch-and-blast programs cannot match, with automated sends earning 16x more per message than scheduled campaigns.

Third, measurement and deliverability now constrain returns more than creative does, only 12.5% of companies believe they measure email ROI accurately, and inbox placement rates at 87.2% still leave meaningful revenue on the table for senders with weak authentication or poor list hygiene.

For brands investing in email marketing in 2026, the evidence suggests that fixing attribution and deliverability before adding creative volume produces higher returns.

The channel's structural advantage is not declining; the programs falling behind are those that have not updated their measurement and automation practices to reflect how email performance actually works today.

FAQ

What is the average email marketing ROI?

The average email marketing ROI is $36–$42 for every $1 spent, based on data from Litmus, the DMA, and Omnisend (2025–2026). This translates to a 3,600%–4,200% return. US ecommerce merchants on optimized platforms report higher averages, Omnisend's US merchant data showed $76 per $1 spent in 2024. Results vary by list quality, automation maturity, and industry.

How does email marketing ROI compare to social media?

Email marketing generates $36–$42 per $1 spent, versus approximately $2.80 for social media advertising (Omnisend / CodeCrew, 2026). Email also converts at 4.24% versus 0.59% for social media traffic (Statista, 2025). However, these channels serve different funnel stages: social builds awareness and attracts new audiences, while email converts and retains them.

Which industry has the highest email marketing ROI?

Retail, ecommerce, and consumer goods report the highest documented average at 45:1, above the global average of $36–$42 per $1 spent (Litmus, 2025). Marketing and advertising agencies follow at 42:1. Within ecommerce, the games, food and drink, and health verticals showed the highest campaign conversion rates in 2025 (Omnisend, 2026).

Does email marketing automation improve ROI?

Yes, substantially. Automated emails generate $2.87 per send compared to $0.18 for scheduled campaigns, a 16x difference (Omnisend 2026 Ecommerce Report). Automated emails also show 52% higher open rates, 332% higher click rates, and 2,361% better conversion rates than campaign emails (Omnisend, 2025 data). Abandoned cart, welcome, and browse abandonment flows account for 87% of automated revenue.

How does personalization affect email marketing ROI?

Segmented campaigns generate 760% more revenue than non-segmented sends (Campaign Monitor, 2025). Personalized subject lines improve open rates by 10%–26% (Campaign Monitor; Adobe, 2025). Behavioral trigger emails generate 10 times the revenue of non-triggered sends (Validity / Litmus, 2024). Brands achieving the highest email returns almost always combine automation with behavioral segmentation.

Why do email ROI figures vary across sources?

Different sources use different sample scopes, cost-accounting methods, and geographic bases. Litmus surveys global marketing professionals. Omnisend uses internal platform data from ecommerce merchants. The DMA measures UK-based marketers. A study of small US retail merchants will return different numbers than a survey of enterprise B2B marketers. The consistent range of $36–$42 across multiple independent methodologies gives it credibility as a global baseline, while higher figures reflect more favorable conditions or more mature programs.

What percentage of email opens happen on mobile?

55% of email opens occur on mobile devices in 2025 (InboxAlly / genesysgrowth, 2026). Apple iPhone accounts for 57.6% of all tracked opens (Litmus Email Client Market Share, 2025). Mobile-unfriendly emails can reduce click rates by up to 50%, and 42.3% of recipients delete emails immediately if they do not render properly on mobile (Campaign Monitor, 2024).

How accurate is email open rate as an ROI metric?

Open rate has become less reliable since Apple Mail Privacy Protection launched in 2021. Apple Mail now pre-loads tracking pixels for Apple Mail users regardless of whether the email is actually read, inflating open rate figures by an estimated 15–20 percentage points. Apple Mail accounts for approximately 50%–60% of all tracked opens (Litmus, 2025). Most email analysts now recommend click rate, click-to-open rate, and revenue per email as primary performance benchmarks.