beehiiv vs Substack: Flat Fee or the 10% Forever?

The short answer: if you are not charging readers, or you are starting from zero followers and want Substack’s discovery network, Substack costs nothing and that is hard to argue with. If you are charging, the crossover comes fast. Once paid revenue clears roughly $500-1,000 a month, beehiiv’s flat fee beats Substack’s 10% cut, and the gap widens every month you grow. beehiiv scored 8.1/10 in our testing. Substack has no Lab Score because it has no price to test in the usual sense — its cost is a percentage of your success.

What each platform actually costs

beehiiv prices by list size, in three tiers plus a custom Enterprise plan. Free covers up to 2,500 subscribers and is unusually complete for a free plan: unlimited sends, 1 publication, custom domains, and a hosted website. Lite adds paid subscriptions at a 0% take rate, ad monetization, automations, and A/B testing. Pro adds branding removal, webhooks, and dynamic content.

On every one of those plans, beehiiv takes 0% of your paid-subscription revenue.

Substack’s pricing fits in one sentence. Publishing is free at any list size, and when you turn on paid subscriptions, Substack keeps a flat 10% of that revenue, plus Stripe processing at roughly 2.9% + $0.30 per transaction. There is no tier to pick and no bill to forecast. There is also no ceiling. The 10% applies at $100 a month and at $50,000 a month, and it never goes away.

The core math

Because Substack’s cost scales with revenue and beehiiv’s scales with list size, the comparison is a crossover problem, not a feature checklist. Here is what each platform actually takes at three revenue levels, before Stripe fees, which both platforms pass through.

At $500 a month in paid revenue, the two platforms cost almost exactly the same. Below that, Substack is cheaper. Above it, beehiiv pulls ahead, and the advantage compounds: the flat fee moves only with list size while the 10% climbs with every new paying subscriber. A publisher doing $10,000 a month on Substack pays about $12,000 a year for the privilege. The same publisher on beehiiv pays $1,308 to $3,948 depending on list size, annual billing less.

If you never charge readers

The math inverts for free newsletters. Substack costs $0 at any list size, forever. beehiiv’s Free plan caps at 2,500 subscribers, after which you are paying $95 to $109 a month whether or not the list earns anything. For a hobby list with no monetization plans, Substack is the cheaper home and probably always will be.

The counterargument is what beehiiv’s free tier includes. Free comes with custom domains, a hosted website, and the recommendation network, and the paid tiers add Boosts and ad monetization, growth tooling built to compound a list rather than just host it. beehiiv is structured on the assumption that your list is a business or will become one. Substack is structured on the assumption that you write and it handles the rest. Both assumptions are defensible. Only one of them costs 10% later.

The network effect is real, and hard to price

The complication in this comparison is that Substack is not just software. It is a network. Notes, the recommendations system, and the Substack app surface your writing to readers who have never heard of you.

This matters most at exactly the stage where Substack’s fee matters least. A writer starting from zero followers has no revenue for Substack to take 10% of, and no audience for beehiiv’s tooling to optimize. For that writer, in the first year, the discovery network can plausibly be worth more than the fee costs. We cannot put a dollar figure on it, and we distrust anyone who does, but pretending it is worth zero would be dishonest.

The catch is that the network’s value is front-loaded and the fee is back-loaded. Discovery matters less every month as your own audience becomes your growth engine, while the 10% takes more every month as revenue grows. The deal gets worse over time by design. beehiiv’s export is a CSV away, and so is Substack’s, so the pragmatic play is starting on Substack for the network and migrating once paid revenue clears the crossover. Migration has real costs in churn and re-authentication, so it is not free, but it is a one-time cost against a permanent 10%.

What the fee does and does not buy

Feature depth is where the platforms stop being comparable. beehiiv Lite ships automations, A/B testing, segmentation, an ad network, and paid growth tools. Substack ships almost none of that. There are no real automations, so no welcome sequences beyond a single email, no re-engagement flows. Segmentation is minimal. There is no A/B testing. Design control is limited to what Substack thinks a newsletter should look like. For a writer who wants to write, this is a feature. For an operator running a media business, it is a wall, and it is a wall you are paying 10% of revenue to stand behind.

The verdict

Pick Substack if you are pre-revenue, pre-audience, or never plan to charge. The network is worth something and the price is zero. Pick beehiiv the moment paid subscriptions are the plan and the numbers start moving, because every dollar past roughly $600 to $1,400 a month of revenue, depending on list size, makes the flat fee look better. The uncomfortable truth for Substack is that its pricing model taxes exactly the outcome its writers are working toward. beehiiv, at $59 to $469 a month with 0% of revenue taken, charges you like a vendor. Substack charges you like a partner who never leaves.