diff --git a/.changeset/klaviyo-revenue-value-attribute.md b/.changeset/klaviyo-revenue-value-attribute.md
new file mode 100644
index 000000000..c269c7698
--- /dev/null
+++ b/.changeset/klaviyo-revenue-value-attribute.md
@@ -0,0 +1,11 @@
+---
+'@walkeros/server-destination-klaviyo': patch
+---
+
+Revenue now reaches Klaviyo. A mapping rule's `settings.value` was written into
+the event's `properties`, where Klaviyo stores it as a segmentable custom
+property and ignores it for revenue reporting, while `valueCurrency` was set on
+the event attributes with no sibling value to denominate. Both now sit together
+on the attributes, which is where `klaviyo-api` serializes `value` and
+`value_currency` from. Properties are unaffected -- map a value through the
+rule's `data` mapping if you also want it as a custom property.
diff --git a/packages/server/destinations/klaviyo/src/examples/step.ts b/packages/server/destinations/klaviyo/src/examples/step.ts
index 7cef8899e..992f1918b 100644
--- a/packages/server/destinations/klaviyo/src/examples/step.ts
+++ b/packages/server/destinations/klaviyo/src/examples/step.ts
@@ -154,7 +154,6 @@ export const revenueEvent: KlaviyoStepExample = {
     data: {
       map: {
         OrderId: 'data.id',
-        value: 'data.total',
         ItemNames: 'data.itemNames',
       },
     },
@@ -186,10 +185,10 @@ export const revenueEvent: KlaviyoStepExample = {
             },
             properties: {
               OrderId: 'ORD-123',
-              value: 99.99,
               ItemNames: ['Widget A', 'Widget B'],
             },
             time: new Date(1700000102).toISOString(),
+            value: 99.99,
             valueCurrency: 'EUR',
           },
         },
diff --git a/packages/server/destinations/klaviyo/src/push.ts b/packages/server/destinations/klaviyo/src/push.ts
index 06eeca524..15fe3e96a 100644
--- a/packages/server/destinations/klaviyo/src/push.ts
+++ b/packages/server/destinations/klaviyo/src/push.ts
@@ -84,7 +84,14 @@ export const push: PushFn = async function (
       ? { ...(data as Record<string, unknown>) }
       : {};
 
-    // Handle revenue value
+    // Handle revenue value.
+    //
+    // Klaviyo reads revenue from the event's `value` / `valueCurrency`
+    // attributes (serialized by klaviyo-api as `value` / `value_currency`),
+    // NOT from `properties`. A number nested in `properties` is stored as a
+    // segmentable custom property and is ignored by revenue reporting, so
+    // emitting `valueCurrency` without a sibling `value` denominates nothing.
+    let value: number | undefined;
     let valueCurrency: string | undefined;
     if (mappingSettings.value !== undefined) {
       const resolvedValue = await getMappingValue(
@@ -96,7 +103,7 @@ export const push: PushFn = async function (
       );
       const numericValue = toNumber(resolvedValue);
       if (numericValue !== undefined) {
-        properties.value = numericValue;
+        value = numericValue;
         if (settings.currency) {
           valueCurrency = settings.currency;
         }
@@ -121,6 +128,7 @@ export const push: PushFn = async function (
           },
           properties,
           time: timestamp.toISOString(),
+          ...(value !== undefined ? { value } : {}),
           ...(valueCurrency ? { valueCurrency } : {}),
         },
       },
diff --git a/packages/server/destinations/klaviyo/src/schemas/mapping.ts b/packages/server/destinations/klaviyo/src/schemas/mapping.ts
index cdb6d383f..be22c8a9c 100644
--- a/packages/server/destinations/klaviyo/src/schemas/mapping.ts
+++ b/packages/server/destinations/klaviyo/src/schemas/mapping.ts
@@ -10,7 +10,7 @@ export const MappingSchema = z.object({
   value: z
     .unknown()
     .describe(
-      'Revenue value mapping. Resolves to a numeric value for Klaviyo revenue tracking. Sets the value property and valueCurrency on the event.',
+      'Revenue value mapping. Resolves to a numeric value for Klaviyo revenue tracking. Sets the event value attribute (value on the wire), plus valueCurrency when settings.currency is set.',
     )
     .optional(),
 });
diff --git a/packages/server/destinations/klaviyo/src/types/index.ts b/packages/server/destinations/klaviyo/src/types/index.ts
index afc1fe161..9dc1f10c7 100644
--- a/packages/server/destinations/klaviyo/src/types/index.ts
+++ b/packages/server/destinations/klaviyo/src/types/index.ts
@@ -40,7 +40,7 @@ export type InitSettings = Partial<Settings>;
 export interface Mapping {
   /** Per-event identify mapping. Resolves to profile attributes for upsert. */
   identify?: WalkerOSMapping.Value;
-  /** Revenue value mapping. Resolves to numeric value for Klaviyo's $value. */
+  /** Revenue value mapping. Resolves to the event's numeric `value` attribute. */
   value?: WalkerOSMapping.Value;
 }
 
diff --git a/website/docs/destinations/server/klaviyo.mdx b/website/docs/destinations/server/klaviyo.mdx
index d05db80c4..3a28ea6ff 100644
--- a/website/docs/destinations/server/klaviyo.mdx
+++ b/website/docs/destinations/server/klaviyo.mdx
@@ -83,7 +83,7 @@ Identity is resolved automatically from each event: `email` defaults to `user.em
 
 ## Revenue tracking
 
-Map a mapping rule's `settings.value` to a numeric event property. When `settings.currency` is also set, the destination adds `valueCurrency` on the Klaviyo event for revenue reporting.
+Map a mapping rule's `settings.value` to a numeric value. The destination sets it as the Klaviyo event's `value` attribute -- the field revenue reporting reads -- and when `settings.currency` is also set, adds `valueCurrency` alongside it.
 
 ## Ecommerce metric naming