diff --git a/.changeset/add-purchase-type-and-recurring-cycle-limit.md b/.changeset/add-purchase-type-and-recurring-cycle-limit.md
new file mode 100644
index 0000000000..1ffd361b8a
--- /dev/null
+++ b/.changeset/add-purchase-type-and-recurring-cycle-limit.md
@@ -0,0 +1,5 @@
+---
+'@shopify/ui-extensions': minor
+---
+
+Add purchaseType and recurringCycleLimit subscribable fields to the DiscountsApi for discount function settings extensions.
diff --git a/packages/ui-extensions/src/surfaces/admin/api/discount-function-settings/discount-function-settings.doc.ts b/packages/ui-extensions/src/surfaces/admin/api/discount-function-settings/discount-function-settings.doc.ts
index 0064eace72..a9f29e37df 100644
--- a/packages/ui-extensions/src/surfaces/admin/api/discount-function-settings/discount-function-settings.doc.ts
+++ b/packages/ui-extensions/src/surfaces/admin/api/discount-function-settings/discount-function-settings.doc.ts
@@ -35,6 +35,12 @@ const data: ReferenceEntityTemplateSchema = {
         'The `data` object exposed to the extension containing the discount function settings. Provides access to the discount identifier and associated [metafields](/docs/apps/build/metafields) that store function configuration values. Use this data to populate your settings UI and understand the current function configuration in the `admin.discount-details.function-settings.render` target.',
       type: 'DiscountFunctionSettingsData',
     },
+    {
+      title: 'discounts',
+      description:
+        'The reactive API for managing discount function configuration, including discount classes, discount method, purchase type, and recurring cycle limit.',
+      type: 'DiscountsApi',
+    },
   ],
   examples: {
     description: 'Configure discount function settings',
diff --git a/packages/ui-extensions/src/surfaces/admin/api/discount-function-settings/launch-options.ts b/packages/ui-extensions/src/surfaces/admin/api/discount-function-settings/launch-options.ts
index d1a28fbcac..0b9f33057f 100644
--- a/packages/ui-extensions/src/surfaces/admin/api/discount-function-settings/launch-options.ts
+++ b/packages/ui-extensions/src/surfaces/admin/api/discount-function-settings/launch-options.ts
@@ -31,6 +31,11 @@ export type DiscountClass = 'product' | 'order' | 'shipping';
  */
 type DiscountMethod = 'automatic' | 'code';
 
+/**
+ * The purchase type that determines which purchases the discount applies to. Use `'one_time_purchase'` for one-time purchases only, `'subscription'` for subscription purchases only, or `'both'` for both.
+ */
+export type PurchaseType = 'one_time_purchase' | 'subscription' | 'both';
+
 /**
  * The `data` object exposed to discount function settings extensions in the `admin.discount-details.function-settings.render` target. Use this to access the current discount configuration and populate your settings interface with existing values.
  */
@@ -57,4 +62,20 @@ export interface DiscountsApi {
    * A signal that contains the discount method (`'automatic'` or `'code'`). Read this to determine whether the discount applies automatically at checkout or requires a customer-entered code.
    */
   discountMethod: ReadonlySignalLike<DiscountMethod>;
+  /**
+   * A signal that contains the purchase type. Read this to determine whether the discount applies to one-time purchases, subscriptions, or both.
+   */
+  purchaseType: ReadonlySignalLike<PurchaseType>;
+  /**
+   * A function that updates the purchase type to change which types of purchases the discount applies to. Call this with a `PurchaseType` value (`'one_time_purchase'`, `'subscription'`, or `'both'`).
+   */
+  updatePurchaseType: UpdateSignalFunction<PurchaseType>;
+  /**
+   * A signal that contains the recurring cycle limit for subscription purchases. A positive integer limits how many billing cycles the discount applies for. Both `0` and `null` mean unlimited (no limit). `null` is the default when no value has been explicitly set.
+   */
+  recurringCycleLimit: ReadonlySignalLike<number | null>;
+  /**
+   * A function that updates the recurring cycle limit for subscription purchases. Pass a positive integer to limit the number of billing cycles, `0` or `null` to remove the limit.
+   */
+  updateRecurringCycleLimit: UpdateSignalFunction<number | null>;
 }