Latest / The Newsletter Podcast with Fexingo: Substack, Beehiiv, and Email Newsletter Business / How Newsletters Use Paid Ads to Acquire Subscribers Effectively
Transcript
- Lucas: Let's talk about something a lot of newsletter operators get wrong — paying for subscribers. The conventional wisdom in indie newsletter circles is that paid acquisition is a trap. You're buying vanity metrics, you're burning cash, you're building a list that doesn't engage. And sometimes that's true. But it's also how Morning Brew went from a handful of readers to over 2.5 million subscribers before they sold to Insider for something like $75 million. Luna: Right, and Morning Brew was basically the poster child for using Facebook ads to grow a newsletter. They were spending aggressively on lead-gen campaigns. Lucas: Exactly. Their whole play was targeting college students and young professionals with a specific offer — a free, daily business newsletter that was actually fun to read. They weren't selling anything on the front end. They were buying the email address for a few cents, then monetizing later through sponsorship. The key metric was cost per subscriber, and they got it down to under a dollar in many campaigns. Luna: So what's the math that makes that work? If you're paying a dollar per subscriber, you need to earn more than that over that subscriber's lifetime. Lucas: Right. And here's where the numbers get interesting. Let's say you have an open rate around 40 percent for a daily newsletter. That means each subscriber sees roughly 12 sponsored emails per month. If your CPM rate — cost per thousand impressions — is, say, $20, then each subscriber generates about 24 cents per month in revenue. Over one year, that's about $2.88. So if your cost per subscriber is under a dollar, you're in good shape. If it's two dollars, you're still fine. But if you're paying five dollars to acquire someone who only sticks around for a month, you're losing money. Luna: And that's a huge pitfall. Most indie newsletter operators don't have the data to calculate lifetime value accurately. They might have a good first month and then see a drop-off. Lucas: That's why the smart play is to lead with a high-intent lead magnet. Not just 'sign up for my newsletter' — that's too vague. Instead, offer something specific like 'The Ultimate Guide to Remote Work Tools' or '10 Templates for Better Sales Emails.' That way, the person who opts in already has a clear need. They're more likely to open future emails, and their lifetime value is higher. Luna: I've seen newsletters use free calculators, checklists, even mini-courses as the bait. The key is that the lead magnet aligns with the newsletter's topic. Lucas: Right. You're not tricking someone into subscribing. You're giving them a genuine piece of value in exchange for their email. Then in the welcome sequence, you introduce the daily newsletter as a way to keep getting that kind of value. It's a much warmer acquisition path. Luna: And it changes the cost structure too. Someone who downloads a 50-page PDF is probably a more engaged prospect than someone who just clicked 'subscribe' on a Facebook ad. Lucas: Exactly. So the cost per lead might be higher, but the conversion rate to paid subscriber or the engagement rate might be much better. You have to measure the full funnel. Luna: Let's talk about platforms. Facebook is still the biggest, but we're in June 2026 now. Has the landscape shifted? Lucas: It has. Apple's App Tracking Transparency changes still ripple through the system. Lookalike audiences aren't as powerful as they were a few years ago. That said, Facebook still has the volume. For mass-market newsletters — think lifestyle, health, personal finance — it's still the go-to. But for B2B or niche professional content, LinkedIn Sponsored Content has become a serious contender. You can target by job title, company size, industry. The cost per lead is higher, but the intent is also higher. Luna: I've seen some newsletters experiment with YouTube prerolls too. They run a 15-second ad that drives to a landing page. That's more of a branding play, but if the creative is strong, it can work. Lucas: It does work, but you need a very compelling hook. 'Want to get smarter about finance in five minutes a day?' That kind of thing. The cost per view on YouTube is low, but the cost per conversion can be high because the funnel is longer. You're asking someone to watch the ad, then click, then land on a page, then fill out a form. Each step loses people. Luna: So what's your recommended minimum budget to test paid acquisition for a newsletter? Lucas: I'd say start with $500. That's enough to test three or four different ad creatives across one platform, maybe two. You want to see a cost per subscriber under two dollars for a general interest newsletter, or under four dollars for a niche B2B newsletter. If you can't hit those numbers in a small test, you probably won't be able to scale profitably. Luna: And if you find a winner at those levels, then you scale. But you have to keep monitoring because audience fatigue is real. After a few weeks, the same creative targeting the same audience will see declining performance. Lucas: Absolutely. You have to refresh the creative, expand the audience, or both. The newsletters that succeed with paid acquisition treat it like a continuous experiment, not a set-it-and-forget-it channel. Luna: Speaking of experiments, it's worth noting that if today's episode gave you a specific takeaway you can actually use, that's the kind of value we try to deliver. And the way this stays ad-free is through listener support — buy me a coffee dot com slash fexingo covers the hosting costs and keeps the podcast independent. Lucas: Yeah, it's a small way to help, and it means we don't have to run interruptive ads. So if you've found something useful here, that link is the place to show it. And now, back to the numbers side of things. Luna: One thing I want to dig into: the landing page itself. Even with great targeting, if your landing page is weak, you're burning money. Lucas: Totally. The landing page is where the conversion happens. It should be clean, with one headline that restates the offer from the ad, a short bullet list of benefits, and a single email field. No navigation, no distractions. I've seen tests where removing the header image doubled the conversion rate because it reduced cognitive load. Luna: I've also seen social proof work really well. 'Join 50,000 readers' or a testimonial from a respected figure in the space. Lucas: Yeah, social proof is powerful. If you have a quote from a known expert saying your newsletter is valuable, put it on the landing page. It can lift conversion by 20 to 30 percent. Also, consider adding a countdown timer or a limited-time bonus, but that's more aggressive. For most newsletters, just a clean, fast page with a clear value proposition is enough. Luna: What about retargeting? If someone clicks but doesn't subscribe, can you bring them back? Lucas: Absolutely. Retargeting is where the real efficiency lies. Someone who visited your landing page but didn't convert is already warm. You can show them a different ad — maybe a testimonial or a different lead magnet — and bring them back. The cost per conversion on retargeting is often half of cold traffic. Luna: That's a good point. A lot of newsletter operators ignore retargeting because they think it's too complicated, but platforms make it easy now. Lucas: It's worth the effort. You set up a Facebook pixel or a LinkedIn insight tag on your landing page, create a custom audience of people who visited but didn't convert, and serve them a specific ad. Even a small uplift in conversion rate can turn a losing campaign into a profitable one. Luna: Let's talk about the elephant in the room: rising ad costs. As we've seen in 2025 and into 2026, CPMs on Meta have gone up year over year. Does that make paid acquisition unsustainable for newsletters? Lucas: It makes it harder, but not impossible. The key is to improve your conversion rate on the landing page and increase the lifetime value of your subscribers. If you can double your landing page conversion rate, you effectively halve your cost per subscriber. And if you can increase average subscriber lifetime — say by improving retention through better content or a stronger welcome sequence — then you can afford a higher acquisition cost. Luna: So the solution is to work on both sides of the equation: reduce cost per acquisition and increase value per subscriber. Lucas: Exactly. And one way to increase value is to have a paid tier. Even if only 5 percent of your subscribers convert to paid, that can dramatically improve the economics. If your paid tier is $10 a month and you have a 5 percent conversion rate, each free subscriber is worth 50 cents per month just from the paid tier, not counting ad revenue. Luna: That's a powerful model. You're essentially using paid ads to acquire free subscribers, and then a fraction of those become paying customers. The math works if the conversion rate is high enough and the churn is low. Lucas: But you have to be careful. If you optimize your ads solely for cost per subscriber, you might attract low-intent people who never open your emails. Then your ad revenue per subscriber drops, and your paid conversion rate tanks. You have to optimize for the full funnel, not just the first step. Luna: So what's the one metric every newsletter operator should track when running paid ads? Lucas: I'd say it's the ratio of customer acquisition cost to customer lifetime value. Specifically, you want your LTV to be at least three times your CAC. If it's lower, you're probably not scaling sustainably. If it's higher, you can afford to invest more. Luna: That's a good benchmark. And to calculate LTV, you need to know your average revenue per subscriber per month and your churn rate. Lucas: Right. For a free newsletter with ad revenue, it's a bit trickier because revenue depends on open rates and ad CPMs. But you can estimate. The important thing is that you have a model, even if imperfect. Otherwise you're flying blind. Luna: I think a lot of newsletter operators are scared of paid ads because they've heard horror stories of burning thousands with no results. But with a small test budget and a good lead magnet, it can work. Lucas: It's a tool, not a magic bullet. And just like any growth channel, it has to fit your newsletter's specific audience and content. For some newsletters, organic growth through cross-promotion or viral loops will always be more efficient. But for many, paid acquisition is a viable way to reach scale faster. Luna: I'm curious where you see paid acquisition going in the next year or two. Do you think ai driven ad optimization will make it easier for small newsletters? Lucas: I think AI will help with creative testing. Tools that automatically generate ad copy and images based on your newsletter's content could lower the barrier. But the fundamentals won't change: you need a compelling offer, a clear landing page, and a solid economic model. AI can optimize the tactics, but the strategy is still human. Luna: That's reassuring. And it means that newsletter operators who understand the math will have an edge. Lucas: Exactly. The ones who treat paid acquisition as a data-driven experiment, not a gamble, are the ones who will succeed. So if you're thinking about trying it, start small, measure everything, and be prepared to kill campaigns that don't work. Luna: Good advice. And as ad platforms evolve, staying adaptable is key. Lucas: Absolutely. We'll be watching how the landscape changes. For now, the playbook is clear: lead magnet, clean landing page, careful targeting, and continuous optimization.