diff --git a/src/helpers/pricing-helper.js b/src/helpers/pricing-helper.js
index a386ed231..7508ff0ca 100644
--- a/src/helpers/pricing-helper.js
+++ b/src/helpers/pricing-helper.js
@@ -1,48 +1,47 @@
 import store from "@/store";
 import baseMixin from "@/mixins/base-mixin.js";
 
-export function getDisplayAmountDue(lineItems) {
-    // lineItems s/b an OBJECT here (not flattened) FROM PAYMENT
-    return getAmountDue(lineItems).toLocaleString("en-US", {
+export function getDisplayAmountDue(lineItemsObject, includeTax = true) {
+    return getAmountDue(lineItemsObject, includeTax).toLocaleString("en-US", {
         style: "currency",
         currency: "USD",
     });
 }
 
-export function getAmountDue(lineItems, includeTax = true) {
-    // lineItems s/b an OBJECT here (not flattened) FROM CART, PAYMENT PAGES
-    var amountDue = 0;
-    if (lineItems?.glassParts) {
-        amountDue += baseMixin?.methods?.getTotalPriceOfAllLineItemsAndChildParts(
-            lineItems.glassParts,
-            includeTax
-        );
-    }
-
-    if (lineItems?.supportingItems) {
-        amountDue += baseMixin?.methods?.getTotalPriceOfAllLineItemsAndChildParts(
-            lineItems.supportingItems,
-            includeTax
-        );
-    }
-
+export function getAmountDue(lineItemsObject, includeTax = true) {
+    let amountDue = 0;
     const order = baseMixin?.methods?.hasSubmittedOrder()
         ? baseMixin?.methods?.getSubmittedOrder()
         : store.getters.order;
+    
+    if (lineItemsObject?.glassParts) {
+        amountDue += baseMixin.methods.getTotalPriceOfAllLineItemsAndChildParts(
+            lineItemsObject.glassParts,
+            includeTax
+        );
+    }
+
+    if (lineItemsObject?.supportingItems) {
+        amountDue += baseMixin?.methods?.getTotalPriceOfAllLineItemsAndChildParts(
+            lineItemsObject.supportingItems,
+            includeTax
+        );
+    }
+
     if (store.getters.coverageIsVerified && !order.policy.isNoComp && !order.policy.isItac) {
         amountDue = order.policy.currentDeductible;
     }
 
-    if (lineItems?.vaps) {
+    if (lineItemsObject?.vaps) {
         amountDue += baseMixin?.methods?.getTotalPriceOfAllLineItemsAndChildParts(
-            lineItems.vaps,
+            lineItemsObject.vaps,
             includeTax
         );
     }
 
-    if (lineItems?.promos) {
+    if (lineItemsObject?.promos) {
         amountDue += baseMixin?.methods?.getTotalPriceOfAllLineItemsAndChildParts(
-            lineItems.promos,
+            lineItemsObject.promos,
             includeTax
         );
     }
@@ -50,15 +49,12 @@ export function getAmountDue(lineItems, includeTax = true) {
     return ((amountDue * 100) / 100).toFixed(2);
 }
 
-export function getSubTotal(lineItems) {
+export function getSubTotal(lineItemsObject) {
     // this is amountDue without sales tax
-    // lineItems s/b an OBJECT here (not flattened) USED IN CART
-    // can be an ARRAY (flattened)   FROM QUOTE
-    return getAmountDue(lineItems, false);
+    return getAmountDue(lineItemsObject, false);
 }
 
-export function getSalesTax(lineItems) {
+export function getSalesTax(lineItemsObject) {
     // this is amountDue minus subTotal
-    // lineItems s/b an OBJECT here (not flattened) USED IN CART
-    return (((getAmountDue(lineItems) - getSubTotal(lineItems)) * 100) / 100).toFixed(2);
+    return (((getAmountDue(lineItemsObject) - getSubTotal(lineItemsObject)) * 100) / 100).toFixed(2);
 }