Beehiiv vs Substack, the fee math that decides it

Substack takes 10% of every dollar your paid newsletter earns, and it never stops. A publication doing $8,000 a month in paid subscriptions hands Substack $9,600 a year before Stripe takes its own cut. beehiiv charges a flat software fee and takes nothing from your subscription revenue. That one difference is the whole beehiiv vs Substack decision for anyone whose newsletter makes money, and we run revenue math like this for a living, so let's do it properly.

We're a performance marketing agency, not a creator channel. We've spent 12+ years running paid acquisition and revenue math for 400+ brands, and we picked beehiiv as our own platform for the same reason we'd recommend it to a client. The pricing model rewards a newsletter that grows. This post compares the two on cost, growth, migration, and fit, and it's honest about where Substack is still the better call. If you want the deeper platform teardown first, our full beehiiv review covers the product end to end.

The fee math, plainly

Substack's model is simple and that's the appeal. There's no monthly fee. You publish, and when readers pay, Substack keeps 10% of the subscription revenue. Substack's own cost page confirms the 10%, and Stripe's processing (2.9% plus 30 cents, with a small recurring-billing fee on top) applies to both platforms, so ignore it for the comparison and look at the platform take.

beehiiv flips the model. You pay a flat software fee, from $49 a month on Scale, and beehiiv keeps 0% of your subscription revenue. The fee scales with your subscriber count, not your income, so a newsletter that monetizes well pays the same software bill as one that doesn't. That's the quiet unfair advantage. Substack takes a bigger bite the better you do. beehiiv doesn't care how much you earn.

Where the crossover actually is

Free or pre-revenue, Substack costs you nothing and beehiiv's free Launch plan covers you to 2,500 subscribers, so it's a wash. The decision only matters once money moves. Here's the same monthly paid revenue run through both platforms, platform take only.

The crossover sits around $500 a month in paid revenue. Below it, Substack's percentage is smaller than beehiiv's flat fee, so pay the 10% and keep your life simple. Above it, the flat fee wins by a widening margin. One honest caveat lives in that table. beehiiv's price climbs with list size, so the $49 figure is the entry band, and a large list on a $5,000 newsletter might sit at $89 a month or so. It's still a fraction of Substack's $500 take. The beehiiv pricing guide walks the full curve by subscriber count if you want your exact number.

Discovery you rent vs growth you own

Cost is only half the question. The other half is where new readers come from, and this is where Substack earns its 10%. Substack has a real network. The app, the Notes feed, and the recommendation system push readers toward you passively, and for a writer with no audience and no distribution, that free discovery is worth paying for. Nobody should pretend beehiiv has an equivalent to the Substack app, because it doesn't.

beehiiv's answer is growth you control instead of a feed you rent. You get Boosts, a marketplace where you pay per verified subscriber to have other newsletters recommend yours, a built-in referral program, cross-recommendations, and a custom-domain website that Google can index. beehiiv reports 130K+ publishers and 425M+ unique readers across the platform, and the recommendation network moves real volume between them. The difference is philosophical. Substack owns the audience relationship and lends you reach. beehiiv gives you the channels and expects you to run them like acquisition, which is exactly how we'd run them for a client.

There's a revenue layer Substack has no answer for at all. The beehiiv Ad Network books sponsorships against your newsletter automatically and pays you per placement or per click, and paid recommendations turn your signup flow into income. On Substack, sponsorship is something you sell yourself over email. On beehiiv it's a system.

Moving from Substack to beehiiv

If you're already on Substack and the fee math now points the other way, the move is less painful than it sounds. You export your subscribers and posts from Substack as a CSV, import them into beehiiv, and beehiiv brings your content and paid subscribers across so billing continues without readers re-entering cards. Your custom domain comes with you. beehiiv runs this migration constantly and has tooling built for it.

The one thing to plan for is the discovery you're leaving behind. Substack's app and network won't forward readers to your new home, so you announce the move inside your last few Substack issues and lean on beehiiv's owned channels to replace that passive reach. For a newsletter earning real money, the recovered 10% usually funds a lot of Boosts.

Who should stay on Substack

• You want to write and publish today with zero setup and zero monthly bill.
• Your newsletter is free, or paid revenue is under about $500 a month.
• The Substack app and Notes are sending you meaningful readers you'd lose.
• You value being inside a discovery network more than owning your growth stack.

Who should pick beehiiv

• Your paid revenue is past roughly $500 a month, or clearly heading there.
• You want the newsletter to be a business, with ads, paid subs, and Boosts under one roof.
• You'd rather own your website, SEO, and growth channels than rent a feed.
• You run a B2B or company newsletter where a small, high-value list feeds a sales pipeline.

That last group is the one most people miss. A B2B list is small and expensive, which keeps you in beehiiv's cheap tiers while the newsletter does real pipeline work. We break down the channel economics in our SaaS performance marketing playbook, and the newsletter is often the highest-margin channel in it.