Email List Cost From 500 to 50,000 Subscribers

An email list is the only side-hustle asset that charges you rent on people who never buy. Hosting is a flat fee, a domain is a flat fee, but nearly every major email provider bills on total stored subscribers, engaged or not. Your email list cost grows quietly in the background whether you send, sell, or go silent for a quarter.

That arrangement is painless while the list is free. It becomes a decision the day subscriber 501 arrives, the upgrade notice lands, and you realize you cannot say whether the tool has earned the money. So this piece answers two questions with numbers you can act on: how much does an email list cost per year at 500, 2,500, 10,000, 25,000, and 50,000 subscribers across the major providers, and how much revenue each subscriber must generate before the list flips from liability to asset.

It also closes a loop we opened on this site. When we ranked blogging revenue streams by RPM, email sat near the top of the table. This is the bill attached to that crown, and the test for when it is worth paying.

Why Email List Costs Stay Invisible Until They Bite

Three mechanisms keep this expense off your radar until it is already large.

The first invoice is years away. Free tiers are generous enough that most creators build their habits, workflows, and loyalty to a tool before ever seeing a price. By the time you pay, you are defending a choice you never actually shopped for.

The trigger is silent. The bill does not rise because you did something. It rises because subscriber 501 signed up while you slept. Email is close to the only side-hustle expense that scales with audience size regardless of whether you touch the product that month.

Nobody annualizes a $110 charge. A monthly bill in the double or low triple digits reads like a utility. Spread it across a year and it stops feeling small: $110 a month is $1,320 a year, and at a $30 product price that is 44 sales annually just to cover software. No provider's checkout page does this math for you, so this article will.

How the Major Email Providers Actually Bill You

Email marketing pricing comes in three shapes, and the shape matters more than the sticker price.

Per contact, the dominant model. Mailchimp, Kit (formerly ConvertKit), MailerLite, and ActiveCampaign all bill their paid plans on total stored contacts, as Mailchimp's pricing page states plainly. A dormant address costs you every month exactly like an active one. That single mechanism drives every number in this article.

Per send, the volume model. Brevo (formerly Sendinblue) sells monthly email volume instead of charging rent on contacts. Storage runs cheap or free, but every send draws down a meter. Infrequent senders can come out well ahead here, while daily senders can pay more than the per-contact crowd.

Tiered brackets inside the per-contact model. Prices step up at boundaries, commonly 500, 2,500, 10,000, 25,000, and 50,000 contacts. A list of 10,050 pays the bracket above 10,000 while a list of 9,950 pays the bracket below it, same tool and nearly identical audience at different prices. Hold that thought, because the pruning section turns it into found money.

One wrinkle worth knowing: many per-contact plans also cap monthly sends at a multiple of your contact count, often around 10 to 12 times. That binds only serious senders, but you should know which cap you are closer to.

The summary of all three models: with per-contact billing dominant across the industry, you are renting storage for your audience, not their attention.

Annual Email List Cost by Provider From 500 to 50,000 Subscribers

The table below uses each provider's entry-to-mid paid tier (Mailchimp Standard, Kit Creator, MailerLite's mid plan, Brevo Lite sized to roughly weekly sending at larger sizes, ActiveCampaign Starter), monthly billing, and published list prices rounded and annualized. Email service provider costs are the rare line item where a five-minute check can move four figures a year, so verify the live page before you budget.

List size	Mailchimp	Kit	MailerLite	Brevo	ActiveCampaign
500	≈$240	≈$290	≈$115	≈$290	≈$175
2,500	≈$780	≈$590	≈$180	≈$450	≈$470
10,000	≈$1,300	≈$1,400	≈$1,000	≈$900	≈$1,800
25,000	≈$3,200	≈$3,000	≈$2,400	≈$2,400	≈$4,100
50,000	≈$5,800	≈$5,400	≈$4,300	≈$4,700	≈$7,500

Estimates, not quotes: rounded from published list prices at the time of writing, and providers change both prices and caps often.

Three patterns in there are worth money:

1. The spread widens with size. At 500 subscribers the cheapest-to-priciest gap is under $200 a year. At 25,000 it is roughly $1,700. At 50,000 it approaches $3,200. Somewhere between 10,000 and 25,000 subscribers, provider choice becomes a four-figure annual decision, which makes it a bigger financial lever than anything on a feature checklist.

2. Cost per 1,000 subscribers falls as you grow. Around $230 to $580 per thousand at 500 subscribers drops to roughly $85 to $150 per thousand at 50,000. Small lists pay the worst rates in the industry, which is exactly why free tiers matter so much at the start.

3. The surprises sit at the edges. Mailchimp pricing at 10,000 subscribers lands near $1,300 a year on its mid tier, middle of the pack. MailerLite and Brevo undercut the field as lists scale, while ActiveCampaign's starter plan runs hottest. The same audience carries very different rent depending on the landlord.

Where Every Free Tier Breaks

Free email plan subscriber limits vary far more than creators assume, and the send cap usually breaks before the subscriber cap does.

Provider	Free subscribers	Free sends	What breaks first
Mailchimp	500 contacts	≈1,000/month	Send cap, for weekly senders past ≈250 contacts
MailerLite	≈1,000	≈12,000/month	Subscriber cap, usually
GetResponse	500 contacts	≈2,500/month	Send cap; a weekly newsletter barely fits
Kit	Up to 10,000	Broadcasts limited	Feature wall: automations and monetization
Brevo	Unlimited	≈300/day	Send cap; a monthly blast beyond ≈9,000
beehiiv	≈2,500	Unlimited sends	Subscriber cap
ActiveCampaign	None	Trial only	You pay from day one

Caps are rounded to the time of writing, and MailerLite has adjusted its free limits before, so check the current free plan FAQ before you plan around it.

The arithmetic of send caps is where free plans actually fail. Mailchimp's roughly 1,000 free monthly sends cover a weekly newsletter to only about 250 people, half its stated contact cap. GetResponse's 2,500 free monthly sends barely cover a weekly send to its full 500 contacts, with nothing left for a welcome sequence, per GetResponse's pricing page. Brevo inverts the model: store as many contacts as you like, but a single monthly blast to more than roughly 9,000 subscribers bursts the 300-per-day meter. Kit is the mirror image of everyone else, storing up to 10,000 subscribers free while gating the automations and monetization tools, so the wall you hit first is a feature rather than a number.

So when to upgrade from a free email plan? When a specific wall binds, not at a feel-good milestone: you trip the send cap two months running, you need an automation the free tier locks, or you need deliverability features such as a custom sending domain. Until one of those fires, the free tier is simply free money.

The Carrying Cost of Dead Subscribers

Call a subscriber dead if they have not opened or clicked in 90 days. Engagement varies enormously by niche, list age, and sending discipline, but around 20 percent genuinely engaged is a realistic working assumption for a creator list that has been collecting signups for a couple of years.

Work the example at 10,000 subscribers on a mid-tier plan costing roughly $1,300 a year:

• You pay about $0.13 per stored subscriber per year.
• Spread across the 2,000 engaged readers actually seeing your mail, the true rate is about $0.65 per engaged subscriber.
• The 8,000 inactive addresses cost roughly $1,040 a year, the cost of inactive email subscribers that render not a single open.

That $1,040 is pure carrying cost, paid for the privilege of warehousing people who will never buy.

Email list pruning pays because of the bracket structure from earlier. Cost does not fall smoothly as you delete contacts; it steps down when you cross a boundary. A list sitting at 10,200 pays the bracket above 10,000. Delete 250 dead contacts to land at 9,950 and the bill steps down, often by a few hundred dollars a year on mainstream tiers, with zero change in what you sell or send. Pruning only pays when it carries you across a line, so find your bracket before you purge rather than after. The side effect helps too: mailbox providers grade senders on engagement, so cutting dead weight tends to improve inbox placement.

Break-Even Revenue per Subscriber

Two formulas decide asset versus liability:

software break-even = annual plan cost ÷ total subscribers
real break-even = annual plan cost ÷ engaged subscribers

Apply the second formula to the cost bands from the earlier table, assuming 20 percent engagement:

List size	Annual cost band	Per subscriber	Per engaged subscriber
500	$115–$290	$0.23–$0.58	$1.15–$2.90
2,500	$180–$780	$0.07–$0.31	$0.36–$1.56
10,000	$900–$1,800	$0.09–$0.18	$0.45–$0.90
25,000	$2,400–$4,100	$0.10–$0.16	$0.48–$0.82
50,000	$4,300–$7,500	$0.09–$0.15	$0.43–$0.75

Software break-even looks trivial, and it is: well under a dollar a year per subscriber at 10,000 on any mid-tier plan. Computed against engaged subscribers only, the figure runs three to five times higher, five times at the 20 percent engagement used here and about three times at a healthier 35 percent. The engaged-subscriber number is the real asset-or-liability test, because engaged readers are the only ones who can buy.

Notice one inversion in the table: the smallest lists pay the most per engaged reader, up to nearly $3 at 500 subscribers. That is the arithmetic case for staying on a free tier as long as any cap allows.

An email list is an asset when an engaged subscriber earns more in a year than they cost in a year. Past a few thousand subscribers, on mainstream plans, that bar sits between roughly fifty cents and a dollar.

For scale: a $30 product converting at 5 percent a year among engaged subscribers produces $1.50 per engaged reader and clears the bar everywhere in the table. Let engagement rot instead, and at 5 percent engaged that same 10,000-subscriber list needs about $2.60 per engaged reader, a bar only course-priced products clear. What decides the question is engagement, not list size.

Choosing a Provider by Growth Stage

The tables convert into four stage-based plays.

0 to 500 subscribers: match the free tier to your break mode

Pick the free plan whose limits break last for your pattern. Store aggressively but send monthly, and Brevo's metered model fits. Run automated funnels from day one, and Kit's high contact ceiling delays the number wall even as its feature wall stands. Send a simple weekly newsletter, and MailerLite's caps hold comfortably. Do not pay for anything yet.

500 to 2,500: take the cheap tier, then prepay

First paid plans cluster under $20 a month across the field, and the ordering mostly holds a bracket higher: anyone hunting the cheapest email marketing for 5,000 subscribers lands on MailerLite or Brevo first, with Mailchimp and ActiveCampaign at the expensive end. Paying annually rather than monthly typically trims 10 to 20 percent across major providers, which at paid tiers can outweigh small per-contact differences between tools. Prepay once the list has survived two quarters of real sending, not during an experiment.

Around 10,000: weigh switching friction

The spread at this size runs to roughly $900 a year, but migration now carries its own bill: re-permission mechanics, rebuilt automations, and a deliverability warm-up that can suppress results for weeks. Switch for a structural reason such as price, features, or support, not because a comparison table, this one included, nudged you.

25,000 to 50,000: prune first, prepay second, switch last

Two levers usually beat switching at scale. Prune below a bracket boundary for the discrete savings shown earlier, then prepay annually for the same 10 to 20 percent discount. If both are exhausted and the four-figure spread still stings, that is the moment to switch, and to ask for a better rate while doing it, because providers at this size sometimes have room to move.

Email Cost Against Your Blogging RPM

Close the loop from our RPM ranking: if email sits near the top of blogging revenue channels, what does the channel cost to hold?

Display ads pay per view with no carrying cost, and commonly cited blog RPMs run roughly $10 to $40 per 1,000 pageviews depending on niche. A 25,000-subscriber list, by contrast, costs $2,400 to $4,100 a year simply to keep. On raw carrying cost, the blog wins. But subscribers can buy, and buyers are worth multiples of views: email is widely cited as one of the highest-ROI channels in marketing, with Litmus's ROI infographic putting the return near $36 per dollar spent. Both figures carry the same asterisk, though, because the ROI is conditional on engagement and the RPM is conditional on traffic you never have to pay to store.

So the email list cost versus blogging RPM question settles on engagement, not channel. A warm list out-earns display easily: an owned audience, no algorithm in the middle, and conversion rates ads cannot touch. A cold list is the worst of both worlds, the only ad inventory you pay to warehouse that never renders an impression.

Your three decisions, with their triggers:

• Prune when you are within a few hundred contacts of a bracket boundary and engagement says the excess is dead.
• Upgrade when a specific cap or feature wall binds, never at an arbitrary milestone.
• Switch when pruning and prepaying are exhausted and the spread at your size runs to four figures.

And the number to beat at any size: roughly fifty cents to a dollar per engaged subscriber per year. Clear it, and the list is the best asset your side hustle owns. Miss it, and you are running a storage unit for ghosts.