diff --git a/README.md b/README.md
index 30c9e8c..00e8959 100644
--- a/README.md
+++ b/README.md
@@ -76,6 +76,36 @@ export default MyStripeCheckout;
 
 - `stripePublicKey` (String) - Stripe public key of your project.
 - `checkoutSessionInput` (Object) - Object to be passed to Stripe's `redirectToCheckout` function. [Docs](https://stripe.com/docs/js/checkout/redirect_to_checkout).
+  - ```js
+    {
+      sessionId: string,
+      successUrl: string,
+      cancelUrl: string,
+      // common
+      customerEmail?: string,
+      billingAddressCollection?: 'required' | 'auto',
+      shippingAddressCollection?: {
+        allowedCountries: Array<string>,
+      },
+      locale?: string,
+    }
+    | {
+        clientReferenceId: string,
+        successUrl: string,
+        cancelUrl: string,
+        items?: Array<{ plan: string, quantity: string }>,
+        lineItems?: Array<{ price: number, quantity: number }>,
+        mode?: 'payment' | 'subscription',
+        submitType?: string,
+        // common
+        customerEmail?: string,
+        billingAddressCollection?: 'required' | 'auto',
+        shippingAddressCollection?: {
+          allowedCountries: Array<string>,
+        },
+        locale?: string,
+      }
+    ```
 - `onSuccess` (?Function) - Called upon success of the checkout session with `{ ...props, checkoutSessionId: 'CHECKOUT_SESSION_ID' }`
 - `onCancel` (?Function) - Called upon success of the checkout session with `{ ...props }`
 - `onLoadingComplete` (?Function) - Called when the Stripe checkout session webpage loads successfully.
diff --git a/src/StripeCheckout.js b/src/StripeCheckout.js
index 464d75c..af72b2f 100644
--- a/src/StripeCheckout.js
+++ b/src/StripeCheckout.js
@@ -9,16 +9,34 @@ type Props = {
   /** Stripe public key */
   stripePublicKey: string,
   /** Stripe Checkout Session input */
-  checkoutSessionInput:
-    | {
-        sessionId: string,
-      }
-    | {
-        clientReferenceId: string,
-        successUrl: string,
-        cancelUrl: string,
-        items?: Array<{ plan: string, quantity: string }>,
-      },
+  checkoutSessionInput: {
+    sessionId: string,
+    successUrl: string,
+    cancelUrl: string,
+    // common
+    customerEmail?: string,
+    billingAddressCollection?: 'required' | 'auto',
+    shippingAddressCollection?: {
+      allowedCountries: Array<string>,
+    },
+    locale?: string,
+  }
+| {
+    clientReferenceId: string,
+    successUrl: string,
+    cancelUrl: string,
+    items?: Array<{ plan: string, quantity: string }>,
+    lineItems?: Array<{ price: number, quantity: number }>,
+    mode?: 'payment' | 'subscription',
+    submitType?: string,
+    // common
+    customerEmail?: string,
+    billingAddressCollection?: 'required' | 'auto',
+    shippingAddressCollection?: {
+      allowedCountries: Array<string>,
+    },
+    locale?: string,
+  },
   /** Called when the Stripe checkout session completes with status 'success' */
   onSuccess: ({ [key: string]: any, checkoutSessionId?: string }) => any,
   /** Called when the Stripe checkout session completes with status 'cancel' */
diff --git a/src/stripeCheckoutRedirectHTML.js b/src/stripeCheckoutRedirectHTML.js
index b748761..c469a69 100644
--- a/src/stripeCheckoutRedirectHTML.js
+++ b/src/stripeCheckoutRedirectHTML.js
@@ -8,12 +8,31 @@ const stripeCheckoutRedirectHTML = (
   input:
     | {
         sessionId: string,
+        successUrl: string,
+        cancelUrl: string,
+        // common
+        customerEmail?: string,
+        billingAddressCollection?: 'required' | 'auto',
+        shippingAddressCollection?: {
+          allowedCountries: Array<string>,
+        },
+        locale?: string,
       }
     | {
         clientReferenceId: string,
         successUrl: string,
         cancelUrl: string,
         items?: Array<{ plan: string, quantity: string }>,
+        lineItems?: Array<{ price: number, quantity: number }>,
+        mode?: 'payment' | 'subscription',
+        submitType?: string,
+        // common
+        customerEmail?: string,
+        billingAddressCollection?: 'required' | 'auto',
+        shippingAddressCollection?: {
+          allowedCountries: Array<string>,
+        },
+        locale?: string,
       },
   options?: {
     /** The loading item is set on the element with id='sc-loading' */