What's the Average ROI of Email Marketing in 2026?

Email marketing returns an average of roughly $36 to $42 for every $1 spent in 2026, a figure widely attributed to Litmus's email ROI research and repeated across multiple independent email-marketing benchmark aggregators. That works out to a 3,600%-4,200% return, among the highest of any digital marketing channel tracked.

Why There's a Range Instead of One Number

Different aggregators citing the same underlying Litmus data report slightly different headline figures — some cite $42 per $1, others land closer to $36 — which is typical of how one vendor study gets summarized differently across secondary sources rather than evidence of conflicting research. Treat the $36-42 range as the reliable band rather than treating either endpoint as the precise figure, since none of the secondary sources checked here re-ran Litmus's original methodology independently.

How ROI Varies by Sector

The sector breakdown attributed to Litmus and cited by email platform Omnisend shows real spread by industry:

• Travel, tourism, and hospitality: about $53 per $1 spent — the highest sector reported.
• Retail and ecommerce: about $45 per $1 spent.
• Marketing and PR: about $42 per $1 spent.
• Software and technology: about $36 per $1 spent.
• Media and publishing: about $32 per $1 spent — the lowest sector reported.

That's a 65%+ gap between the highest and lowest sectors, which is the main reason a single blended number is a weak target for any specific business to aim at.

Email's ROI Relative to Other Channels

One compilation ranking channels by ROI multiple puts email at the top ($42 per $1), ahead of SEO (around $22), content marketing (around $14), social media marketing (around $10), Google Search Ads (around $8), and display advertising (around $5). Treat this specific cross-channel ranking as a secondary summary rather than a single audited study comparing every channel on identical terms, since each channel's figure traces back to a different original source and measurement method.

The Caveat That Matters More Than the Number

Only an estimated 46% of senders actually measure promotional email ROI at all, according to the same research. That matters because a benchmark this favorable is only useful to a business that's actively tracking revenue attributable to email against what it spends on the channel — platform fees, list-building costs, and the creative and copywriting time that goes into campaigns. A business citing the $36-42 figure to justify an unmeasured email program is borrowing someone else's data to skip the measurement step the benchmark assumes you've already done.

What to Set Up Before You Compare

Basic revenue attribution for email doesn't require an enterprise analytics stack — UTM-tagged links from your email platform into your website analytics, tied to actual purchases or logged pipeline, is enough to get a real number. Without that link, any ROI figure you report is an estimate built on assumptions about how much of a sale to credit to the email that preceded it.

Bottom Line

Set up UTM-tagged attribution for email before using the $36-42 industry figure as your target, and once you can measure your own number, compare it against your specific sector's figure above rather than the blended average — the spread between sectors here is wide enough that the average misrepresents most individual businesses.

Sources: Litmus email ROI research, as cited by Omnisend and multiple 2026 email marketing benchmark aggregators (Marketful, SendX, Colorlib, Searchlab).