Switching from Mailchimp to Klaviyo
Mailchimp customers moving to Klaviyo can lean on Klaviyo’s native Mailchimp integration to pull in contacts and engagement history automatically, though campaigns and automations still need to be rebuilt by hand.
Why teams switch from Mailchimp to Klaviyo
Deeper ecommerce segmentation
Klaviyo’s segmentation is built around real-time purchase and browse behavior pulled straight from your store, which lets you target by predicted lifetime value, product category, or specific SKUs in ways Mailchimp’s audience tags can’t match.
More powerful automation flows
Klaviyo’s flow builder supports branching logic, multiple conditional splits, and cross-channel (email plus SMS) sequencing in a single automation, versus the more linear automation builder in Mailchimp’s lower tiers.
Built for high-volume senders
Once contact counts climb into the tens of thousands, Klaviyo’s send infrastructure and deliverability tooling are generally viewed as stronger than Mailchimp’s for revenue-driving ecommerce email programs.
Switching Cost & Friction Estimator
Estimate the real hidden cost of moving from Mailchimp to Klaviyo — not just the subscription price.
How to migrate your data
Klaviyo’s built-in Mailchimp integration handles the bulk of the contact transfer, but plan on manual work for anything creative or automated.
| Step | What happens |
|---|---|
| 1. Connect your Mailchimp API key | In Klaviyo, add the Mailchimp integration and authenticate with your Mailchimp API key to start the sync. |
| 2. Sync historical contacts and campaign data | Klaviyo pulls in your existing Mailchimp audiences (as lists), subscriber status, and roughly the last 90 days of campaign engagement data during the initial sync. |
| 3. Wait for ongoing sync cycles | After the initial import, Klaviyo syncs existing audiences approximately every 30 minutes and picks up brand-new audiences or campaigns roughly every 6 hours while the integration stays connected. |
| 4. Rebuild tags as segments or lists | Because Mailchimp tags don’t come across through the native sync, export them as a CSV and re-import them into Klaviyo, then convert them into lists or segments. |
| 5. Recreate templates and automations | Export your Mailchimp email HTML and rebuild it as Klaviyo templates, and manually recreate any Mailchimp automations as Klaviyo flows since neither transfers automatically. |
| 6. Redirect signup forms and disconnect Mailchimp | Point website and landing-page signup forms at Klaviyo, run both tools in parallel for a billing cycle to confirm parity, then remove the Mailchimp integration. |
Pricing during the transition
Both tools offer a free entry tier, but Klaviyo’s active-profile-based pricing tends to overtake Mailchimp’s at the same contact volume.
| Plan | Mailchimp | Klaviyo |
|---|---|---|
| Free plan | $0 (up to 250 contacts, Mailchimp) | $0 (up to 250 profiles, 500 emails/month, Klaviyo) |
| Entry paid tier (~500 contacts) | Essentials from around $13/month | Email plan around $20/month |
| Mid tier (~1,000 contacts) | Standard from around $20/month | Email plan around $30/month |
Both vendors price by active contact/profile count and raise rates as your list grows, so compare quotes at your actual list size rather than the entry-level numbers above; figures are as of September 2026 and both vendors adjust tiers periodically.
Feature-parity checklist
The two platforms overlap heavily on core email marketing but diverge on automation depth and ecommerce-specific data.
| Feature | Mailchimp | Klaviyo equivalent |
|---|---|---|
| Visual automation/flow builder | Linear automations, more steps at higher tiers | Branching flows with conditional splits, built for ecommerce triggers |
| Ecommerce platform integrations | Solid Shopify/WooCommerce integrations, less granular data | Deep native Shopify/BigCommerce sync with real-time purchase and browse events |
| SMS marketing | Available as an add-on in some regions | Native SMS/MMS/WhatsApp on a shared credit system |
| Landing pages | Built-in landing page builder | Available but less mature than Mailchimp’s |
| Reporting on revenue attribution | Basic ecommerce reporting | Detailed revenue-per-flow and predictive analytics (CLV, churn risk) |
Frequently Asked Questions
Will my Mailchimp automations transfer to Klaviyo automatically?
No – Klaviyo’s native integration only syncs contacts and roughly 90 days of campaign engagement data; automations must be manually rebuilt as Klaviyo flows.
Do my Mailchimp tags carry over?
Not through the native sync. You’ll need to export tags as a CSV from Mailchimp and re-import them into Klaviyo as list or segment memberships.
How long does the Mailchimp-to-Klaviyo sync take?
The initial historical sync happens shortly after connecting, and ongoing updates land roughly every 30 minutes for existing audiences and every 6 hours for new ones, as of Klaviyo’s current documentation.
Can I run Mailchimp and Klaviyo at the same time during migration?
Yes, and it’s the safer approach – most teams keep both connected for a billing cycle to verify data parity before cancelling Mailchimp.
Is Klaviyo more expensive than Mailchimp?
At the same contact volume, Klaviyo’s email plan typically costs more than Mailchimp’s equivalent tier, though Klaviyo’s SMS/WhatsApp is billed separately via credits rather than bundled.
Canonical data for the tools on this page
Every pricing fact, rating, AI billing model and switching guide we hold on each tool, on one page — with the date each figure was last verified.