Best email marketing for small business

What's the best email marketing for small business owners?

For most small businesses, the best email marketing for small business use is Brevo, because its free plan includes SMS, WhatsApp, and basic CRM access on top of email, and its cheapest paid plan, Starter at $9 a month, is priced by how many emails you send rather than how big your list gets. MailerLite is the cheapest of the three list-priced tools once you outgrow a free plan. Mailchimp fits best if you already run a Shopify or WooCommerce store. ActiveCampaign is the pick once you need branching automation and a real CRM, but it has no free plan at all.

The right answer changes once your list starts growing, since all four tools price differently as you add contacts. Here's what each costs at a small size and where the bill goes from there.

Free tiers compared

All four prices come from each vendor's own pricing page, checked 2026-07-07. Confirm your own quote before you buy; every price here rises as your list or send volume grows.

Brevo's free plan stands out because the cap is on daily sends, not contact count. A small business with a large but rarely-emailed list, say a local service business texting a monthly newsletter to 5,000 past customers, can stay on Brevo's free tier a long time. MailerLite and Mailchimp both cap the free plan by contact count instead, so a bigger list forces an upgrade even if you send infrequently.

Cost as your list grows

This is where the four tools split into different pricing logic, and it matters more than the free tier once you're actually running the business.

Brevo prices by email volume, not contacts. Starter removes the daily send cap for $9 a month, Standard adds automation and A/B testing for $18 a month, and Professional jumps to $499 a month for 150,000 to 10 million emails a month. There's no mid-tier bridge between Standard and Professional, so a business that outgrows Standard hits a large jump at once. But if your list is big and your sending is light, Brevo can stay the cheapest option here by a wide margin, since storing more contacts costs nothing extra.

MailerLite and Mailchimp both price by list size, and both plans get more expensive as your subscriber or contact count rises within the same tier, even without adding features. MailerLite's Comfort plan starts at $12 a month and Power at $25 a month, both quoted at the smallest subscriber tier; Mailchimp's Essentials starts at $13 a month and Standard at $20 a month, both quoted at 500 contacts. Add contacts on either tool and the published starting price stops applying. Mailchimp also counts unsubscribed and non-subscribed contacts against your plan limit unless you manually archive them, so a list that looks smaller than it is can still push you into a higher tier.

ActiveCampaign prices on two axes at once: plan tier and contact count. Its own pricing page defaults to a 1,000-contact baseline, listing Starter at $15, Plus at $49, Pro at $79, and Enterprise at $145 a month, billed annually. Crossing a contact threshold, say from 1,000 to 2,500, moves your whole plan to a higher band, not just the extra contacts, and since November 2025 new signups are billed on total contacts including unsubscribed and bounced ones. A growing list on ActiveCampaign can double a bill at a threshold crossing in a way none of the other three tools do at the same pace.

Automation depth

Free and cheap plans across all four tools cap what automation can do, and this is often the real reason a small business switches tools before it switches for price.

ActiveCampaign's visual automation builder handles branching, multi-condition workflows better than the other three, and it's the only one of the four that bundles a full CRM and sales pipeline into every paid tier instead of selling it separately. That depth is why it has no free plan: the automation and CRM are what you're paying for from the first dollar.

Brevo includes marketing automation starting on its Standard plan at $18 a month, but a real CRM with a sales pipeline is a separate paid add-on (Sales Essentials or Sales Advanced) on top of the marketing plans, not something bundled in. MailerLite's Comfort plan includes 50 visual automations, and Power removes that cap entirely, but neither plan includes a CRM. Mailchimp caps automation at 4 steps on Essentials; full branching flows need Standard at $20 a month or above, where generative AI content tools and predictive segmentation are also included at no extra add-on cost.

If your business runs on welcome series and abandoned-cart flows with several branching conditions, that gap between a 4-step cap and a real automation builder is the thing to test before you buy, not just the sticker price.

Which one to pick

If you have a large list you rarely email, stay on Brevo's volume-based pricing. It's the only one of the four where storing more contacts is free.

If you want the cheapest way to run a small, active list once you're paying and you don't need Brevo's SMS, WhatsApp, or CRM, MailerLite undercuts Mailchimp and ActiveCampaign at the same list size, though its free plan shrank in June 2026 and Enterprise pricing above 200,000 subscribers is quote-only.

If you already sell through Shopify, WooCommerce, or Wix and want built-in revenue tracking alongside your campaigns, Mailchimp is worth the higher starting price, and our full Mailchimp alternatives breakdown covers the field if the contact-based pricing stops working for you.

If you need branching automation and a CRM in the same subscription and can live without a free plan, ActiveCampaign is built for that job specifically. For the wider set of tools worth comparing against Brevo's volume-based model, see our Brevo alternatives ranking.

FAQ

Is there a genuinely free email marketing tool for a small business? Yes. Brevo's free plan has no contact cap at all, only a limit of 300 emails a day, and it includes SMS, WhatsApp, and basic CRM access alongside email. MailerLite and Mailchimp also have free plans, but both cap by contact count (250 subscribers and 250 contacts respectively) rather than send volume.

Which email tool stays cheapest as a small business list grows? Brevo tends to stay cheapest for a growing list because it prices by email volume rather than contact count, so storing more contacts doesn't raise the bill unless you also send more emails. MailerLite is the cheapest per-contact option among the tools that do price by list size.

Does any of these include a CRM without an extra fee? ActiveCampaign bundles a CRM and sales pipeline into every paid plan starting at $15 a month. Brevo sells its CRM as a separate add-on (Sales Essentials or Sales Advanced) on top of the marketing plans, and MailerLite and Mailchimp don't offer a full CRM at all.

Why did my email marketing bill jump at renewal? On ActiveCampaign, crossing a contact-count threshold moves your entire plan to a higher price band, not just the extra contacts, and new signups since November 2025 are billed on total contacts including unsubscribed and bounced ones. Mailchimp has a similar issue: unsubscribed and non-subscribed contacts still count against your plan limit unless you manually archive them.