diff --git a/src/endpoints/subscription-proration-policies.js b/src/endpoints/subscription-proration-policies.js
new file mode 100644
index 000000000..83ababc8f
--- /dev/null
+++ b/src/endpoints/subscription-proration-policies.js
@@ -0,0 +1,29 @@
+import CRUDExtend from '../extends/crud'
+
+class SubscriptionProrationPoliciesEndpoint extends CRUDExtend {
+  constructor(endpoint) {
+    super(endpoint)
+
+    this.endpoint = 'subscriptions/proration-policies'
+  }
+
+  Create(body) {
+    return this.request.send(this.endpoint, 'POST', {
+      ...body
+    })
+  }
+
+  Update(id, body, token = null) {
+    return this.request.send(
+      `${this.endpoint}/${id}`,
+      'PUT',
+      {
+        ...body
+      },
+      token
+    )
+  }
+
+}
+
+export default SubscriptionProrationPoliciesEndpoint
diff --git a/src/moltin.d.ts b/src/moltin.d.ts
index 3f11ab0e6..81ee4be01 100644
--- a/src/moltin.d.ts
+++ b/src/moltin.d.ts
@@ -66,6 +66,7 @@ import { SubscriptionJobsEndpoint } from './types/subscription-jobs'
 import { SubscriptionSchedulesEndpoint } from './types/subscription-schedules'
 import { CustomApisEndpoint } from './types/custom-apis'
 import { SubscriptionDunningRulesEndpoint } from './types/subscription-dunning-rules'
+import { SubscriptionProrationPoliciesEndpoint } from './types/subscription-proration-policies'
 
 export * from './types/config'
 export * from './types/storage'
@@ -142,6 +143,7 @@ export * from './types/subscription-jobs'
 export * from './types/subscription-schedules'
 export * from './types/custom-apis'
 export * from './types/subscription-dunning-rules'
+export * from './types/subscription-proration-policies'
 
 // UMD
 export as namespace moltin
@@ -209,6 +211,7 @@ export class Moltin {
   SubscriptionSchedules: SubscriptionSchedulesEndpoint
   CustomApis: CustomApisEndpoint
   SubscriptionDunningRules: SubscriptionDunningRulesEndpoint
+  SubscriptionProrationPolicies: SubscriptionProrationPoliciesEndpoint
 
   Cart(id?: string): CartEndpoint // This optional cart id is super worrying when using the SDK in a node server :/
   constructor(config: Config)
diff --git a/src/moltin.js b/src/moltin.js
index 568ac1753..dc308ba29 100644
--- a/src/moltin.js
+++ b/src/moltin.js
@@ -57,6 +57,7 @@ import SubscriptionSubscribersEndpoint from './endpoints/subscription-subscriber
 import SubscriptionJobsEndpoint  from './endpoints/subscription-jobs'
 import SubscriptionSchedulesEndpoint from './endpoints/subscription-schedules'
 import SubscriptionDunningRulesEndpoint from './endpoints/subscription-dunning-rules'
+import SubscriptionProrationPoliciesEndpoint from './endpoints/subscription-proration-policies'
 
 import {cartIdentifier, tokenInvalid, getCredentials, resolveCredentialsStorageKey} from './utils/helpers'
 import CatalogsEndpoint from './endpoints/catalogs'
@@ -134,6 +135,7 @@ export default class Moltin {
     this.SubscriptionSchedules = new SubscriptionSchedulesEndpoint(config)
     this.CustomApis = new CustomApisEndpoint(config)
     this.SubscriptionDunningRules = new SubscriptionDunningRulesEndpoint(config)
+    this.SubscriptionProrationPolicies = new SubscriptionProrationPoliciesEndpoint(config)
   }
 
   // Expose `Cart` class on Moltin class
diff --git a/src/types/subscription-proration-policies.d.ts b/src/types/subscription-proration-policies.d.ts
new file mode 100644
index 000000000..c3627aa73
--- /dev/null
+++ b/src/types/subscription-proration-policies.d.ts
@@ -0,0 +1,52 @@
+/**
+ * Subscription Proration Policies
+ * Description: Subscription Proration Policies.
+ * DOCS: TODO: add docs when ready
+ */
+import {
+  Identifiable,
+  CrudQueryableResource
+} from './core'
+
+/**
+ * Core Subscription Proration Policies Base Interface
+ * For custom flows, extend this interface
+ * DOCS: TODO: add docs when ready
+ */
+export interface SubscriptionProrationPolicyBase {
+  type: 'proration_policy'
+  attributes: {
+    name: string
+    rounding: 'up' | 'down' | 'nearest'
+    external_ref?: string
+  }
+}
+
+export interface SubscriptionProrationPolicy extends Identifiable, SubscriptionProrationPolicyBase {
+  meta: {
+    owner: 'store' | 'organization'
+    timestamps: {
+      updated_at: string
+      created_at: string
+    }
+  }
+}
+
+export type SubscriptionProrationPolicyCreate = SubscriptionProrationPolicyBase
+export type SubscriptionProrationPolicyUpdate = Identifiable & Omit<SubscriptionProrationPolicyBase, 'attributes'> & {attributes: Partial<SubscriptionProrationPolicy['attributes']>}
+
+/**
+ * Subscription Proration Policies Endpoints
+ * DOCS: TODO: add docs when ready
+ */
+export interface SubscriptionProrationPoliciesEndpoint
+  extends CrudQueryableResource<
+    SubscriptionProrationPolicy,
+    SubscriptionProrationPolicyCreate,
+    SubscriptionProrationPolicyUpdate,
+    never,
+    never,
+    never
+    > {
+  endpoint: 'proration-policies'
+}