The cheapest newsletter platform at 100,000 subscribers

At six figures, the field narrows

Something changes when your list reaches 100,000 subscribers: most newsletter platforms stop quoting a public price. Of the five we cover, only two still publish a rate you can put a number on at this size — Ghost and Substack. Take a 100,000-subscriber list with 4,000 of them paying $10/month ($40,000/month in gross paid-subscription revenue), and the computed all-in cost is $2,634/month on Ghost's Publisher (up to 100,000 members) plan (6.59% of gross) versus $6,640/month on Substack (16.6%).

That's a $4,006/month gap — about $48,072/year — for the exact same revenue, and Ghost is the cheaper end by a wide margin. Kit, beehiiv, and Buttondown each drop out of this comparison for a specific, honest reason covered below. You can model your own list at this scale in the calculator, and the step down from here is the cost at 50,000 subscribers.

Ghost holds a flat price; Substack scales with revenue

The reason Ghost wins here is structural. Ghost charges a flat plan fee that stops climbing once your list is in its top published bracket, and it takes 0% of your subscription revenue — so your only variable cost is Stripe's 2.9% + $0.30 per transaction. At $40,000/month gross that lands at $2,634/month all-in on the Publisher (up to 100,000 members) plan. Substack charges no plan fee at all, but it takes 10% of every subscription and adds Stripe's card fee plus a 0.7% recurring-billing fee on top — a percentage of revenue that keeps growing as you earn more. On the same $40,000/month that works out to $6,640/month, roughly 2.5× the Ghost bill.

Substack's model is genuinely cheaper when revenue is low, because there's no fixed fee to cover — but a 100,000-subscriber paid list is nowhere near that range. On a list this size, Substack stays the cheaper choice only up to about 257 paid subscribers ($2,570/month gross); past that thin sliver, Ghost's flat fee wins and the gap only widens. The general version of this trade-off is in flat fee or revenue share, and the direct head-to-head is Ghost vs Substack.

Why Kit, beehiiv, and Buttondown drop out of the table

Three platforms we cover aren't in these numbers, and it's not a verdict on any of them — it's that the data doesn't support a claim at this exact size. Kit publishes a per-subscriber pricing ladder, but it tops out at 95,000 subscribers; at 100,000 you're in contact-sales territory with no public rate to compute from. That's the notable shift from the 50,000-subscriber picture, where Kit still had a published bracket — one more platform falls off the priced map as you scale.

beehiiv scales its plan price with subscriber count and we've verified its pricing directly only up to 2,500 subscribers, so a 100,000-subscriber figure would mean publishing a number we haven't confirmed — which this site doesn't do. Buttondown's published plans stop at 20,000 subscribers, custom-quote territory above that. When those higher brackets are captured directly, they'll appear in the calculator and here automatically. beehiiv in particular is a strong flat-fee option at smaller sizes — see beehiiv pricing explained.

What this means if you're heading toward 100k

The practical read: at six figures, a pure paid newsletter is cheapest on Ghost's flat plan, and Substack's percentage becomes the single most expensive line item you can move — $4,006/month more than Ghost for identical revenue. If you want more than a paid feed, Ghost's Business (up to 100,000 members) plan (a full website with more staff seats and higher limits) runs $399/month billed annually and still keeps the 0% take rate. And because Ghost is open source, self-hosting drops the plan fee to $0 plus your own infrastructure cost — a lever no hosted-only platform offers, and one worth weighing at this scale.

None of this prices in the tooling differences that actually drive most platform choices, so treat it as the fee floor, not the whole decision. Every number here traces back to the platform profiles for Ghost and Substack, with sources on the methodology page — and if the percentage math is what's steering you away from Substack, Substack fees explained walks through exactly where the 10% goes. Figures reflect published pricing verified as of 2026-07-25.

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