diff --git a/ShopifySharp/Entities/Checkout.cs b/ShopifySharp/Entities/Checkout.cs
index ceb42eb0..b8247f89 100644
--- a/ShopifySharp/Entities/Checkout.cs
+++ b/ShopifySharp/Entities/Checkout.cs
@@ -184,7 +184,13 @@ public class Checkout : ShopifyObject
         /// </summary>
         [JsonProperty("total_discounts")]
         public decimal? TotalDiscounts { get; set; }
-        
+
+        /// <summary>
+        /// The total duties of the checkout in presentment currency.
+        /// </summary>
+        [JsonProperty("total_duties")]
+        public decimal? TotalDuties { get; set; }
+
         /// <summary>
         /// The sum of all the prices of all the items in the order.
         /// </summary>
diff --git a/ShopifySharp/Entities/LineItem.cs b/ShopifySharp/Entities/LineItem.cs
index e603e882..fb77332f 100644
--- a/ShopifySharp/Entities/LineItem.cs
+++ b/ShopifySharp/Entities/LineItem.cs
@@ -174,5 +174,11 @@ public class LineItem : ShopifyObject
         /// </summary>
         [JsonProperty("price_set")]
         public PriceSet PriceSet { get; set; }
+
+        /// <summary>
+        /// A list of duty objects, each containing information about a duty on the line item
+        /// </summary>
+        [JsonProperty("duties")]
+        public IEnumerable<LineItemDuty> Duties { get; set; }
     }
 }
diff --git a/ShopifySharp/Entities/LineItemDuty.cs b/ShopifySharp/Entities/LineItemDuty.cs
new file mode 100644
index 00000000..d377a059
--- /dev/null
+++ b/ShopifySharp/Entities/LineItemDuty.cs
@@ -0,0 +1,25 @@
+using Newtonsoft.Json;
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace ShopifySharp
+{
+    public class LineItemDuty : ShopifyObject
+    {
+        [JsonProperty("harmonized_system_code")]
+        public string HarmonizedSystemCode { get; set; }
+
+        [JsonProperty("country_code_of_origin")]
+        public string CountryCodeOfOrigin { get; set; }
+
+        [JsonProperty("shop_money")]
+        public Price ShopMoney { get; set; }
+
+        [JsonProperty("presentment_money")]
+        public Price PresentmentMoney { get; set; }
+
+        [JsonProperty("tax_lines")]
+        public IEnumerable<TaxLine> TaxLines { get; set; }
+    }
+}
diff --git a/ShopifySharp/Entities/Location.cs b/ShopifySharp/Entities/Location.cs
index d3045a16..6543204a 100644
--- a/ShopifySharp/Entities/Location.cs
+++ b/ShopifySharp/Entities/Location.cs
@@ -97,5 +97,17 @@ public class Location : ShopifyObject
         /// </summary>
         [JsonProperty("legacy")]
         public bool? Legacy { get; set; }
+
+        /// <summary>
+        /// The localized name of the location's country.
+        /// </summary>
+        [JsonProperty("localized_country_name")]
+        public string LocalizedCountryName { get; set; }
+
+        /// <summary>
+        /// The localized name of the location's region. Typically a province, state, or prefecture.
+        /// </summary>
+        [JsonProperty("localized_province_name")]
+        public string LocalizedProvinceName { get; set; }
     }
 }
diff --git a/ShopifySharp/Entities/Order.cs b/ShopifySharp/Entities/Order.cs
index 0d942a4a..98c32e33 100644
--- a/ShopifySharp/Entities/Order.cs
+++ b/ShopifySharp/Entities/Order.cs
@@ -342,5 +342,17 @@ public class Order : ShopifyObject
         /// </summary>
         [JsonProperty("metafields")]
         public IEnumerable<MetaField> Metafields { get; set; }
+
+        /// <summary>
+        /// The current total duties charged on the order in shop and presentment currencies.
+        /// </summary>
+        [JsonProperty("current_total_duties_set")]
+        public PriceSet CurrentTotalDutiesSet { get; set; }
+
+        /// <summary>
+        /// The original total duties charged on the order in shop and presentment currencies.
+        /// </summary>
+        [JsonProperty("original_total_duties_set")]
+        public PriceSet OriginalTotalDutiesSet { get; set; }
     }
 }
diff --git a/ShopifySharp/Entities/Refund.cs b/ShopifySharp/Entities/Refund.cs
index d70560ea..ae9f94ba 100644
--- a/ShopifySharp/Entities/Refund.cs
+++ b/ShopifySharp/Entities/Refund.cs
@@ -68,6 +68,12 @@ public class Refund : ShopifyObject
         /// </summary>
         [JsonProperty("user_id")]
         public long? UserId { get; set; }
+
+        /// <summary>
+        /// A list of duties that have been returned as part of the refund.
+        /// </summary>
+        [JsonProperty("duties")]
+        public IEnumerable<RefundDuty> Duties { get; set; }
     }
 
     public class Shipping
diff --git a/ShopifySharp/Entities/RefundDuty.cs b/ShopifySharp/Entities/RefundDuty.cs
new file mode 100644
index 00000000..dfec3d51
--- /dev/null
+++ b/ShopifySharp/Entities/RefundDuty.cs
@@ -0,0 +1,16 @@
+using Newtonsoft.Json;
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace ShopifySharp
+{
+    public class RefundDuty
+    {
+        [JsonProperty("duty_id")]
+        public long? DutyId { get; set; }
+
+        [JsonProperty("amount_set")]
+        public PriceSet AmountSet { get; set; }
+    }
+}
diff --git a/ShopifySharp/Services/Collection/CollectionService.cs b/ShopifySharp/Services/Collection/CollectionService.cs
index 2dfe26b5..5e76eaf5 100644
--- a/ShopifySharp/Services/Collection/CollectionService.cs
+++ b/ShopifySharp/Services/Collection/CollectionService.cs
@@ -10,11 +10,6 @@ namespace ShopifySharp
     /// </summary>
     public class CollectionService : ShopifyService
     {
-        /// <remarks>
-        /// This endpoint is not supported in 2019-10.
-        /// </remarks>
-        public override string APIVersion => "2020-07";
-
         /// <summary>
         /// Creates a new instance of the service.
         /// </summary>
diff --git a/ShopifySharp/Services/ShopifyService.cs b/ShopifySharp/Services/ShopifyService.cs
index 4f79cd2c..8944cd5e 100644
--- a/ShopifySharp/Services/ShopifyService.cs
+++ b/ShopifySharp/Services/ShopifyService.cs
@@ -15,7 +15,7 @@ namespace ShopifySharp
 {
     public abstract class ShopifyService
     {
-        public virtual string APIVersion => "2019-10";
+        public virtual string APIVersion => "2020-07";
 
         private static IRequestExecutionPolicy _GlobalExecutionPolicy = new DefaultRequestExecutionPolicy();