13,000
subscribers on David C. Baker's list, at the center of a practice that billed $1.7 million
How does your newsletter drive revenue?
Nobody has published a defensible dollar figure for what a B2B newsletter subscriber is worth. The useful question is narrower. How much new business does your newsletter help create, and what does it cost to run?
80%
of Newsletter Operator's 406 customers were already subscribed when they bought
170 days
on average between subscribing and buying, in the same operator report
0.62%
beehiiv's median paid conversion rate, a publisher's number rather than a firm's
You'll find plenty of confident claims about what an email subscriber is worth. Most of them measure a different business from yours, like a consumer publisher selling ads or a creator selling a course. A single number hides more than it explains.
We checked the platform reports and case studies that do exist. They come from vendors and operators, so treat every figure below as reported, not audited. Then we built a calculator, because your own client value and list size are the only inputs that matter.
A firm's newsletter earns money in four ways.
Dan Oshinsky reports that more than 80 percent of Inbox Collective's revenue comes from consulting, while advertisers and affiliates account for 3% and 5% of its lifetime revenue.
The first way is new clients who read you for a while and then get in touch. The second is repeat work and referrals from people who already know you, because a newsletter keeps you in the conversation between projects. The third is sponsorship, where another company pays to reach your readers. The fourth is a product, like a course, a workshop or a paid report.
For an agency or consultancy, the first two do most of the work. Sponsorship and products can pay for the newsletter, but the client you win from it usually dwarfs them.
$1.7M
billed in a year by Punctuation, a two-person firm whose newsletter reaches 13,000 subscribers
A modest list can anchor a serious practice.
Inbox Collective's profile of David C. Baker (January 31, 2024) reports that his business billed $1.7 million the previous year. Baker says his email strategy is "absolutely at the core of what we do," and he also says there are many other ways people find him.
The profile doesn't say how much of that revenue started with the newsletter, so don't read it as a return. Read it as a shape. A firm that advises agencies sends useful thinking to a list smaller than many conference mailing lists, and the work keeps coming.
170 days
the average time between subscribing and buying across Newsletter Operator's customers
Your buyers are probably reading before they call.
Matt McGarry reports that 320 of his 406 customers (80%) were newsletter subscribers, and that subscribers took 170 days on average to buy (August 3, 2024). He also reports that not a single subscriber from paid boosts bought anything.
His customers mostly bought courses, not agency retainers, so the exact numbers won't transfer. The pattern does. People read for months before they buy, and the readers who arrived cheaply didn't buy at all.
Judge a newsletter over a full sales cycle, and judge each source of new readers by who becomes a conversation, not by how many names it adds.
Run the numbers for your own firm.
The calculator below counts new clients over 24 months. Every input is yours, and the defaults are only an example. None of it is a forecast.
Most firms ask whether a newsletter can earn $25,000 a year. With 2,000 subscribers and $12,000 clients, that takes a little more than four new clients over two years, or about one in every 480 subscribers. The calculator shows what the same target takes at your numbers.
This model counts new clients over 24 months. Change the numbers to match your firm.
Expected new clients
10
Total client revenue
$120,000
Revenue per subscriber
$60
That's over the modeled 24 months, before delivery or marketing costs.
What it takes to reach $25,000 a year: You'd need 4.2 new clients over two years, which is 0.21% of your list.
Core costs $6,487 in its first year, setup included. One client at this value covers that 1.8 times over, before your own delivery costs.
$5K
what Paved says sponsorship rates typically average across its marketplace
Sponsorship can help pay for the newsletter.
Paved's pricing guide (December 3, 2024) says rates typically average around $5,000. Its 2026 rate guide suggests a starting flat fee of 2.5% to 5% of your subscriber count, and it says B2B lists earn the most per subscriber.
That starting rule puts a 2,000-person list at $50 to $100 a send. It won't make you rich, but a niche list read by buyers can command much more. beehiiv reports that Martech Record reached 10,000 subscribers and projects more than $100,000 a year in newsletter revenue, and its founder doubled his pricing and sold out for the year.
Media and services can also feed each other. beehiiv's Open Source CEO case study (April 30, 2026) reports about $375,000 in trailing 12-month revenue from a list of more than 400,000, plus up to 17% of the pipeline for the founder's talent company. That pipeline figure covers his newsletter, social media and network together.
$277K
in product sales Bootstrapped Giants reported from a list of about 16,000
A product can turn trust into a launch.
Andrew Warner reports $277,111 in product sales over about two months in 2024, mostly from a $5,000 sales accelerator for B2B service businesses. The list had about 16,000 subscribers, and roughly 1,000 unsubscribed during the campaign.
Paid subscriptions work differently. beehiiv's 2026 paid newsletter report puts the median paid conversion rate at 0.62% and the median business price at $15 a month. Those are publisher economics. A firm usually earns more by keeping its newsletter free and selling the work behind it.
Measure it like a business, not like a mailing list.
Mailchimp warns that Apple Mail Privacy Protection preloads tracking pixels and makes open metrics unreliable. Litmus reports that 35% of marketing leaders get $10 to $36 back for every dollar spent on email, and that newsletters drive the highest ROI for agencies and professional services.
Open rates won't tell you whether the newsletter is winning work. Record the replies, the meetings, the proposals and the closed deals, and note which ones started with an issue and which ones it only helped along.
Give it a full sales cycle before you judge it. Count each client once, and count the profit you keep after doing the work, not just the contract value. If the numbers work, you'll be able to show it. If they don't, you'll know why.
We write newsletters that keep businesses talking with the people they serve. If this piece connected with something you've been putting off, tell us what you sell and we'll tell you honestly if a newsletter will help. Start or fix yours
Sources, all checked on October 24, 2026: beehiiv, The State of Paid Newsletters 2026 (June 22, 2026), whose lifetime figures are modeled; beehiiv case studies on Martech Record (April 7, 2025) and Open Source CEO (April 30, 2026), where Martech Record's revenue is a projection; Inbox Collective (August 10, 2022, and January 31, 2024); Newsletter Operator (August 3, 2024); Bootstrapped Giants (October 24, 2024); Paved (December 3, 2024, and July 29, 2026); Litmus, The ROI of Email Marketing (updated July 16, 2025); and Mailchimp's Apple Mail Privacy Protection FAQ.
Every result is reported by the operator or the vendor and hasn't been independently verified. The examples use different time periods and business models, so don't average them. The calculator is an illustrative model, not a forecast or an industry benchmark. None of this is a WTF Growth client result.
WTF Growth builds client newsletters on beehiiv and earns a referral when you sign up through our links.