diff --git a/changelog.txt b/changelog.txt
index 76ac4d2a5c..6e2c6f1210 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,6 +1,7 @@
 *** Changelog ***
 
 = 9.5.0 - xxxx-xx-xx =
+* Dev - Implements WooCommerce constants for the tax statuses.
 * Fix - Fixes the listing of payment methods on the classic checkout when the Optimized Checkout is enabled.
 * Fix - Fixes the availability of WeChat Pay when the Optimized Checkout is enabled on the block checkout. Removes it from the classic/shortcode checkout to avoid issues.
 * Dev - Renames all references to "Smart Checkout" and "Single Payment Element" (and "SPE") to "Optimized Checkout" (and "OC"), following the feature rebranding.
diff --git a/includes/payment-methods/class-wc-stripe-express-checkout-helper.php b/includes/payment-methods/class-wc-stripe-express-checkout-helper.php
index 087d3125be..6623bda545 100644
--- a/includes/payment-methods/class-wc-stripe-express-checkout-helper.php
+++ b/includes/payment-methods/class-wc-stripe-express-checkout-helper.php
@@ -1,5 +1,7 @@
 <?php
 
+use Automattic\WooCommerce\Enums\ProductTaxStatus;
+
 if ( ! defined( 'ABSPATH' ) ) {
 	exit;
 }
@@ -725,7 +727,7 @@ private function is_product_or_cart_taxable() {
 			if ( ! $product ) {
 				return false;
 			}
-			return $product->get_tax_status() !== 'none';
+			return $product->get_tax_status() !== ProductTaxStatus::NONE;
 		}
 
 		// Cart or checkout page: the cart is taxable if any item in the cart
@@ -742,7 +744,7 @@ private function is_product_or_cart_taxable() {
 				$cart_item_key
 			);
 
-			if ( 'none' !== $product->get_tax_status() ) {
+			if ( ProductTaxStatus::NONE !== $product->get_tax_status() ) {
 				return true;
 			}
 		}
diff --git a/readme.txt b/readme.txt
index d63d8a283a..046fb4a042 100644
--- a/readme.txt
+++ b/readme.txt
@@ -165,6 +165,7 @@ If you get stuck, you can ask for help in the [Plugin Forum](https://wordpress.o
 
 **Internal Changes and Upcoming Features**
 
+* Dev - Implements WooCommerce constants for the tax statuses.
 * Feature - Work to support Optimized Checkout
 * Feature - Work to support Amazon Pay
 * Dev - Splits the code coverage GitHub Actions Workflow into two separate actions