Mailchimp vs Klaviyo: Which One in 2026?

If you run a Small Business and you have to defend this choice to a partner, start here: both Mailchimp and Klaviyo publish a $0 free plan with a 250-person cap. Mailchimp Free is $0 for 250 contacts. Klaviyo Free caps sends at 500 emails. Pick Mailchimp when you need a printed dollar figure for Essentials, Standard, or Premium that you can screenshot into a budget thread. Pick Klaviyo when the store already records checkout and order events and you want email plus a $5 SMS test on the same free profile. Do not quote a Klaviyo paid monthly number in that meeting unless you pulled it from their calculator that morning — the public pricing page is a usage calculator, not a static paid grid.

The two products are close on the free tier. They are not close once you live in store events, SMS, or a published paid ladder.

How we evaluated

We opened the public pages a buyer can open without a sales call. For Mailchimp that was the marketing pricing page and the compare-plans grid, both fetched 2026-09-02. For Klaviyo that was the pricing page on the same date. We did not call either sales team. We did not convert a foreign-currency display into dollars. We did not treat a calculator total as a list price.

Where a cell has no public number, this page says "not published" and tells you what to ask instead — seats, modules, migration, and which meter actually moves the bill (contacts on Mailchimp, active profiles and email sends on Klaviyo). A guessed figure is worse than a blank, because a partner will read it back to the vendor.

We also opened two government sources a Small Business has to live with even if the vendor never mentions them. Commercial email in the United States is not optional compliance: according to the Federal Trade Commission, each separate email in violation of the CAN-SPAM Act is subject to penalties of up to $53,088. That number is why unsubscribe handling, physical address, and truthful subject lines belong in the same conversation as plan price.

The reader for this page is a Small Business, not a consumer-app hobbyist and not an enterprise procurement desk. According to the SBA Office of Advocacy, there are 34,752,434 small businesses in the United States. That is the pool this choice is for. The same SBA FAQ is also why a two-person shop and a 40-person shop can sit in the same category and still need different tools: according to the SBA Office of Advocacy, small businesses employ 45.9% of American workers, or about 59 million people. Headcount inside "small" is not one size.

US Tech Automations evaluated the pair the way a partner meeting actually runs: what can we print, what pauses if we hit a cap, and what work moves with the list when we switch. Pricing for connecting those lists to the rest of the stack is on the US Tech Automations pricing page.

Who Mailchimp is actually for

Mailchimp is for a Small Business whose email program is still a list, a campaign calendar, and a short set of automations — welcome, a cart reminder, a win-back — and whose partner wants a price they can circle in ink.

The public compare-plans page, fetched 2026-09-02, is the page to print. According to Mailchimp, the Free marketing plan is $0 per month with a limit of 250 contacts. That is the number to use if someone asks "what does it cost to try." Free sending is capped at 500 emails per month or 250 per day, whichever hits first, and Mailchimp says sending is paused if the contact or send limit is exceeded. Email support on Free lasts the first 30 days. You get one user seat, one audience, limited templates, and you cannot remove Mailchimp branding. Automation on Free is a preview, not a live flow you can run.

The paid ladder is the reason Mailchimp is easier to defend in a budget thread than Klaviyo. The same compare-plans page displayed Essentials at $13 per month for 12 months, Standard at $20 per month for 12 months, and Premium at $350 per month for 12 months with 15% off on 10,000 or more contacts. The page also printed two upper rungs you will hit as the list grows: Essentials goes up to 50,000 contacts at a $385 per month tier, and Standard goes up to 100,000 contacts at an $800 per month tier. After those 12-month displays, the "then starts at" regular monthly figure was not published as a number we can quote, so do not invent one. If the partner asks what you pay in month 13, open the live calculator on that date and paste the screenshot.

Mailchimp counts contacts, not "active profiles." That sounds like a wording difference. It is the fight you will have at 400 people on the list who have not opened in a year. If those 400 still sit in the audience, they still sit on the bill. Clean the list on a schedule, or you will pay for names that never buy. Monthly send caps on paid plans are a multiple of that contact count: 10 times contacts on Essentials, 12 times on Standard, 15 times on Premium. At 2,000 contacts on Essentials, that is 20,000 sends in the month before overages. Mailchimp says overages are billed automatically after a free trial if you blow the cap.

Seats and audiences are published and they are tight on the lower paid plans: 3 seats and 3 audiences on Essentials, 5 and 5 on Standard, unlimited on Premium. If two owners and a contractor all need to log in, Essentials is already the ceiling. Role-based access is 2 roles on Essentials, 4 on Standard, 5 on Premium, and not included on Free. Personalized onboarding is not included on Essentials, 1 session on Standard, and 4 sessions on Premium.

Mailchimp is also the more ordinary "marketing platform" shape: popup forms, landing pages, social posting, a marketing calendar, and 300+ integrations on every plan including Free. SMS is an add-on on paid plans and is not included on Free. If you need MMS, that starts at Standard. If you need a short code, Mailchimp says additional cost is required and does not print the figure — ask for that quote before you promise SMS in a partner deck.

Flows are the other published ceiling. Essentials allows up to 4 flow steps. Standard and Premium allow up to 200 flows. If your "automation" is a four-step welcome, Essentials can hold it. If your automation is a branching tree off purchase behavior, you are on Standard or you are lying to yourself about what Essentials includes.

Mailchimp is a weak fit when the business already thinks in events — viewed product, added to cart, placed order — and wants one profile that is the store plus email plus SMS. You can bolt store data onto Mailchimp. You will do more of that work yourself. A useful pattern is to keep orders in a sheet first: how to connect WooCommerce to Google Sheets is the live setup for that export. Once the sheet is the source of truth, US Tech Automations maps those order rows to Mailchimp tags and merge fields so the next campaign is not a CSV someone forgot to filter.

Use Mailchimp if the partner's first question is "what does the line item say next month" and you want a page that already printed $13, $20, $350, $385, and $800.

Who Klaviyo is actually for

Klaviyo is for a Small Business whose customer record is already a store profile — email, orders, checkout, browse — and who is willing to price paid email from a calculator instead of a printed grid.

According to Klaviyo, the free plan includes up to 250 active profiles and 500 email sends per month. The same page publishes $5 of mobile messages per month and 10,000 Composer credits on that free plan. You may stay on free indefinitely while you stay under both the 250-profile cap and the 500-send cap. Email support on free lasts the first 60 days; after that you have the help center, community, and academy, not the paid support channels. Custom branding removal is called out as a paid-plan feature. If you exceed 250 active profiles or 500 sends, Klaviyo says sending can pause until you upgrade or until the next cycle.

"Active profiles" is the phrase to take to the partner. It is not the same as Mailchimp's contact count. Klaviyo is counting people who may receive marketing email, and the bill later will follow that meter plus sends. Ask, before you migrate, how they count a profile that bought once three years ago, a profile that only exists because it started checkout, and a profile that opted out. Those three answers change the number you type into the calculator.

This page does not print a Klaviyo paid monthly email price. The public page is a platform calculator. A total sitting in that widget is a configuration, not a list price, and quoting it here would be the one number a buyer reads back to the vendor. Paid Klaviyo is usage tiers by profile count. What you do instead: open Klaviyo pricing, enter the active profile count you actually have (not the count you hope to have), add SMS only if you will send it this quarter, and paste the breakdown into the partner thread with the date. Ask sales — or the calculator's breakdown — which modules sit on top of email: Customer Hub, helpdesk, Composer credits past the free 10,000, and SMS beyond the $5 test.

Klaviyo's free plan already includes the drag-and-drop editor, automations, segmentation, reports, revenue attribution for campaigns, a basic Customer Hub (order tracking, one-click buy again), and a basic helpdesk (shared inbox, macros, multiple agents). That is a different shape than Mailchimp Free, which does not include live automation flows. If the work you care about is "abandoned checkout emails that know the cart," Klaviyo is built to ingest those events. Mailchimp can send a cart reminder. Klaviyo is the one whose public docs assume Viewed Product, Added to Cart, Started Checkout, and Placed Order are first-class meters.

That event model is also the switching cost. If your store does not already emit those events, you are not "turning on Klaviyo." You are instrumenting a checkout. Keep product and order data somewhere you control while you do it. Catalog rows often live in a base before they live in an email tool; connect Airtable to Salesforce is the same class of job — SKUs and customer records moving on a schedule, not in a one-off export. Inbox threads should not live in the email tool either. If support still sits in a shared mailbox, connect Intercom to HubSpot is the pattern for keeping lead replies on a CRM record so a Klaviyo flow is not also your ticket queue.

Klaviyo is a weak fit when you need a printed paid ladder for a partner who will not sit through a calculator, when your list is a newsletter to people who do not buy from a cart, or when you need Mailchimp-style published seat counts. Klaviyo's public pricing page did not publish user-seat caps, audience caps, or a flow-count ceiling. Ask those three questions before you promise the rest of the team a login.

Use Klaviyo if the partner's first question is "does the abandoned checkout email know the cart" and you are ready to defend a usage bill instead of a named tier.

Side-by-side: figures you can quote

Every dollar and cap below was on a public page on 2026-09-02. Empty cells are "not published," not a hint to guess.

Source: Mailchimp compare plans and Klaviyo pricing, fetched 2026-09-02. Mailchimp 12-month figures are the numbers the compare-plans page displayed; the regular price after that window was not printed as a quoteable figure.

Source: Mailchimp compare plans and Klaviyo pricing, fetched 2026-09-02. Klaviyo paid seats, paid send caps, and paid flow counts were not on the public page.

Source: same two vendor pages, fetched 2026-09-02. "Not published" means the page did not print a yes, a no, or a number we can stand behind.

Mailchimp: pros and cons

Pros, if you are the person who has to show the math.

The free tier is a real $0 with a printed 250-contact cap, not a trial that expires while you are still writing the welcome email. Paid dollars are on a public grid: $13, $20, $350 for the 12-month displays, plus $385 and $800 as named upper rungs. A partner who hates calculators can still see a ladder. Seats, audiences, send multiples, and flow ceilings are printed, so you can say "Essentials is 3 seats and 4 flow steps" without a guess. Overages are described in public: they bill you instead of silently pausing after the trial, which is a different operational failure than Klaviyo's pause-until-upgrade on free. Phone and priority support exist on Premium if you are willing to pay for that tier. Pay-as-you-go email credits exist if you send rarely and do not want a monthly plan — Mailchimp publishes that path even though it does not print the credit price on the compare grid, so ask for the credit price before you pick it.

Cons, in the same voice.

Free is small. 250 contacts and 500 emails is a launch list, not a year of a working store. Branding stays on Free. Live flows stay off Free. SMS stays off Free. Contact count includes people you should have deleted, and the send cap is a multiple of that un-cleaned number. Essentials looks cheap at the $13 display and then stops you at 4 flow steps and 3 seats. The 12-month promotional display is not the same thing as a committed month-13 price; that later figure was not published. Lists above 200,000 contacts go to a high-volume conversation with no public dollar. If your business is a store with a cart, you will spend time teaching Mailchimp about orders that Klaviyo expects as native events.

Klaviyo: pros and cons

Pros, if the store is the center of the business.

The free plan is $0 with the same 250-person scale as Mailchimp, plus 500 emails, plus $5 of SMS, plus Composer credits, plus automations that are actually on. You can stay on free as long as you stay under the caps. Support on free runs 60 days, not 30. Customer Hub and a basic helpdesk sit on the same free account, which matters if the same two people answer "where is my order" and also send the campaign. The product is built around profiles and events, so abandoned checkout is not a bolt-on metaphor. Integrations are available on free; Klaviyo says you are not blocked from connecting the stack just because you have not paid.

Cons, in the same voice.

There is no printed paid ladder you can circle. If the partner wants "the Standard plan is $20," you do not have that sentence. Active profiles will not match the Mailchimp export row-for-row, and the first invoice fight will be about who counts as active. Free sending pauses when you trip 250 or 500, which is a hard stop during a sale week. After day 60, free support is community and docs. Branding removal is a paid-plan item. Seat limits, paid send caps, and flow ceilings were not published on the pricing page we fetched — you have to ask. SMS past the $5 test is its own bill, region and carrier dependent, and this page will not invent that rate. If your "list" is a newsletter to people who never see a cart, you are buying an event platform to send a newsletter.

What switching actually costs

The vendor bill is not the switching bill. Plan on a month of overlap. That month is rent on two tools, plus the hours to move data, plus the week someone sends from the old account by habit.

Data is the first week. Export every audience, every tag, every merge field, and — this is the one that gets people sued — every unsubscribe and bounce. CAN-SPAM does not care that you switched vendors. CAN-SPAM penalties reach $53,088 per email. According to the Federal Trade Commission, you must honor a recipient's opt-out request within 10 business days, and the opt-out mechanism you offered must still work for at least 30 days after you send. If the old tool's unsubscribe file does not land in the new suppression list before the first campaign, you are the one in that penalty math. Do not skip physical address, truthful subject lines, or a working unsubscribe on the first send from the new account either; the Act covers commercial messages, including business-to-business, and it does not care that you are a Small Business.

Source: FTC CAN-SPAM guide, Mailchimp compare plans, Klaviyo pricing. Penalty and opt-out clocks are law, not vendor policy.

Field mapping is the second week. Mailchimp contacts will not land as Klaviyo active profiles without a rule for who is billable. Klaviyo profiles will not land as Mailchimp contacts without a rule for which event properties become merge fields. Run a 50-row sample, not the whole list, and look at names, phones, SMS consent, and last-order date. If last-order date is blank, your "win-back" flow will mail people who never bought.

Retraining is not a slide deck. One person who currently "knows Mailchimp" will spend real hours learning Klaviyo's flow builder, or the other way around. Budget those hours on the calendar as if they were a contractor invoice. The rest of the team needs a one-page "where to click to suppress a person" sheet, because that click is the $53,088 click.

Flows are the third week and the reason overlap exists. Rebuild the four you actually send: welcome, abandoned checkout, post-purchase, and the campaign template. Leave the other twelve until after cutover. Dual-send to a seed list from both tools for a week so you can see which tracking links break. Then send the real list from one tool only. Killing the old account the same day as the first live send is how unsubscribes get lost.

US Tech Automations should sit in that month as the team that writes the event names next to the checkout page and the suppression file next to the first campaign, not as a second email vendor. The homepage is the index for those workflow jobs; startup-sized setups is the lane that matches a Small Business stack, and agentic workflows is the lane if the mapping from store events into the email tool is the part you do not want a human to retype.

Money during the overlap: you will pay two bills for about 30 days. Mailchimp's published dollars are the ones you can forecast. Klaviyo's paid bill is the calculator output for the profile count you will have after the import — which is why you count active profiles before you import, not after.

The verdict

Choose Mailchimp if you are a Small Business whose email is campaigns plus a few automations, whose partner wants a printed ladder, and whose list is people you would call "contacts." The free tier is $0 at 250 contacts. The paid story you can defend on 2026-09-02 is Essentials displayed at $13 per month for 12 months, Standard at $20, Premium at $350 with 15% off on 10,000 or more contacts, and named upper rungs at $385 and $800. Stay on Mailchimp if seats, audiences, and flow-step ceilings need to be numbers in a memo.

Choose Klaviyo if you are a Small Business whose record of the customer is a store profile, who will send abandoned checkout from real cart events, and who will accept a usage calculator for paid email. The free tier is $0 at 250 active profiles, 500 emails, and $5 of SMS. Stay on Klaviyo if Customer Hub and a helpdesk on the same login matter, and if you are willing to ask for seats and paid modules instead of reading them off a grid.

Who should pick the other one: if you already opened Mailchimp and your pain is "the cart email does not know the cart," you are the Klaviyo reader, even if Mailchimp is cheaper to explain. If you already opened Klaviyo and your pain is "I cannot tell my partner what next month costs without a slider," you are the Mailchimp reader, even if Klaviyo is closer to the store.

They are close at 250 people and $0. They are not close at the first paid invoice, and they are not close the first time a send cap pauses a campaign. For the stack around either choice — sheets, CRMs, inboxes — look at US Tech Automations pricing rather than bolting a third email tool onto a decision that only needed two.

FAQs

Which tool should a Small Business pick in 2026?

Mailchimp, if you need published paid dollars and a contact-based ladder; Klaviyo, if you need store events and email plus an SMS test on one free profile. At 250 people and $0 they are close. After that they are not.

How much is Mailchimp vs Klaviyo on the free tier?

Mailchimp Free is $0 for 250 contacts with 500 emails per month or 250 per day. Klaviyo Free is $0 for 250 active profiles with 500 emails per month and $5 of mobile messages. Both figures are from the public pages fetched 2026-09-02.

What happens if we outgrow 250 contacts?

Mailchimp moves you onto Essentials, Standard, or Premium and publishes send multiples (10×, 12×, 15×) plus named upper rungs at $385 and $800. Klaviyo moves you onto paid usage by profile count; this page does not print that monthly figure because the vendor did not publish a static paid grid. Open their calculator with your real active-profile count and paste the dated breakdown into the partner thread.

Can we switch mid-quarter without losing unsubscribes?

Yes, if suppression moves before the first live send. Export unsubscribes and bounces first, load them as a block list in the new tool, and keep the old opt-out working for 30 days after the last send from the old account. The FTC's 10-business-day honor window still applies during the overlap.

Who owns CAN-SPAM if an agency hits send?

You do. The FTC says you cannot contract away the duty: the company whose product is promoted and the company that sends can both be held responsible. Write that into the agency agreement before the first campaign, and make sure the unsubscribe lands in your system of record, not only in the agency's login.

Does Klaviyo publish a paid list price we can quote to a partner?

Not on the public pricing page we fetched on 2026-09-02. They publish $0 free, 250 active profiles, 500 emails, $5 of SMS, and 10,000 Composer credits. Paid email is a usage calculator by profile count. Do not let anyone invent a "Klaviyo starts at" number on your behalf.

How long does a cutover actually take?

Plan on a month of overlap: a week for exports and suppression, a week for field mapping on a 50-row sample, a week to rebuild the four live flows, and a week of dual-send to seeds before the old account goes dark. Mailchimp's 14-day Essentials/Standard trial is long enough to test, not long enough to finish that month.

Key Takeaways

• Both tools publish a $0 free plan at 250 people; Mailchimp counts contacts, Klaviyo counts active profiles.

• Mailchimp is the one with printed paid dollars ($13, $20, $350, $385, $800 on the 2026-09-02 compare-plans page).

• Klaviyo is the one with store events, free-plan automations, and $5 of SMS; it does not publish a static paid monthly grid.

• Mailchimp Free is $0 for 250 contacts. Klaviyo Free caps sends at 500 emails. Quote those, not a guessed paid Klaviyo number.

• Switching costs a month of overlap; unsubscribes have to move before the first send because CAN-SPAM is $53,088 per violating email.

• Ask Mailchimp about month-13 prices after the 12-month display, SMS add-on rates, and high-volume lists above 200,000 contacts.

• Ask Klaviyo about active-profile definitions, seats, paid modules, and the calculator output for the list you actually have.

• Connect the store, the sheet, and the inbox first, then pick the email tool — the list is not the whole stack.

• When the partner wants the line item in writing, compare workflows the same way you compared these two plans: dated pages, no invented figures.