Klaviyo Terms of Service

This document sets the rules for using Klaviyo's Services. Klaviyo bills you in advance each period and those fees are non-refundable, and if a security breach occurs you must notify Klaviyo by email within 24 hours. Klaviyo can change the terms at any time for any reason and can immediately cut off your access if it decides the Services are being misused.

This Agreement establishes the terms under which customers access and use Klaviyo's Services, defining a comprehensive set of mutual rights and obligations. Klaviyo receives a non-exclusive, sublicensable, transferable, worldwide, royalty-free license to process Customer Data as necessary to provide the Services, and retains exclusive ownership of all intellectual property in the Services and any Klaviyo Derived Data it derives through aggregation. Customer obligations include advance, non-refundable fee payments, broad indemnification of Klaviyo and its affiliated parties for losses arising from Customer Indemnity Responsibility, and a hard 24-hour deadline to notify Klaviyo of any security breach. Klaviyo's liability exposure is capped at fees paid in the six months preceding the first triggering event, with all consequential, punitive, indirect, and lost-profits damages excluded; Klaviyo retains unilateral authority to amend the Agreement for any reason and to immediately suspend or terminate customer access at its reasonable discretion.

As a customer, you grant Klaviyo a broad license to process your Customer Data to provide its Services, and that license can be extended to third parties, though Klaviyo will not use your Customer Data to train third-party foundation models. If you discover a security breach, you must email privacy@klaviyo.com within 24 hours — that deadline is absolute. All fees are paid in advance and are non-refundable, so cancelling before a billing period ends does not entitle you to a refund. You are responsible for indemnifying Klaviyo and a wide range of its affiliates and personnel against all losses arising from your Customer Indemnity Responsibility, with no stated cap on that obligation, while Klaviyo's own liability to you is capped at six months of fees paid and excludes consequential and lost-profits damages entirely.