diff --git a/ParseSwift.playground/Pages/1 - Your first Object.xcplaygroundpage/Contents.swift b/ParseSwift.playground/Pages/1 - Your first Object.xcplaygroundpage/Contents.swift
index e935e3c25..92b8c6e48 100644
--- a/ParseSwift.playground/Pages/1 - Your first Object.xcplaygroundpage/Contents.swift	
+++ b/ParseSwift.playground/Pages/1 - Your first Object.xcplaygroundpage/Contents.swift	
@@ -40,6 +40,10 @@ struct GameScore: ParseObject {
     //: Your own properties.
     var score: Int = 0
 
+	//: Optional custom properties need to be marked with @NullableProperty or
+	// setting properties to `nil` won't propagate to server
+	@NullableProperty var gameEndDate: Date?
+
     /*:
      It's recommended the developer adds the emptyObject computed property or similar.
      Gets an empty version of the respective object. This can be used when you only need to update a
@@ -76,10 +80,10 @@ struct GameData: ParseObject {
     var ACL: ParseACL?
 
     //: Your own properties.
-    var polygon: ParsePolygon?
+	@NullableProperty var polygon: ParsePolygon?
     //: `ParseBytes` needs to be a part of the original schema
     //: or else you will need your masterKey to force an upgrade.
-    var bytes: ParseBytes?
+	@NullableProperty var bytes: ParseBytes?
 }
 
 //: It's recommended to place custom initializers in an extension
diff --git a/ParseSwift.playground/Pages/11 - LiveQuery.xcplaygroundpage/Contents.swift b/ParseSwift.playground/Pages/11 - LiveQuery.xcplaygroundpage/Contents.swift
index 115050a78..d652ce782 100644
--- a/ParseSwift.playground/Pages/11 - LiveQuery.xcplaygroundpage/Contents.swift	
+++ b/ParseSwift.playground/Pages/11 - LiveQuery.xcplaygroundpage/Contents.swift	
@@ -19,8 +19,8 @@ struct GameScore: ParseObject {
 
     //: Your own properties.
     var score: Int = 0
-    var location: ParseGeoPoint?
-    var name: String?
+	@NullableProperty var location: ParseGeoPoint?
+	@NullableProperty var name: String?
 }
 
 //: It's recommended to place custom initializers in an extension
diff --git a/ParseSwift.playground/Pages/12 - Roles and Relations.xcplaygroundpage/Contents.swift b/ParseSwift.playground/Pages/12 - Roles and Relations.xcplaygroundpage/Contents.swift
index ec480e99f..868866b1d 100644
--- a/ParseSwift.playground/Pages/12 - Roles and Relations.xcplaygroundpage/Contents.swift	
+++ b/ParseSwift.playground/Pages/12 - Roles and Relations.xcplaygroundpage/Contents.swift	
@@ -28,7 +28,7 @@ struct User: ParseUser {
     var authData: [String: [String: String]?]?
 
     //: Your custom keys.
-    var customKey: String?
+	@NullableProperty var customKey: String?
 }
 
 struct Role<RoleUser: ParseUser>: ParseRole {
diff --git a/ParseSwift.playground/Pages/14 - Config.xcplaygroundpage/Contents.swift b/ParseSwift.playground/Pages/14 - Config.xcplaygroundpage/Contents.swift
index e79bb5423..7733b1ca2 100644
--- a/ParseSwift.playground/Pages/14 - Config.xcplaygroundpage/Contents.swift	
+++ b/ParseSwift.playground/Pages/14 - Config.xcplaygroundpage/Contents.swift	
@@ -18,8 +18,8 @@ struct Config: ParseConfig {
 
     //: If your server Config has any parameters their names and types should
     //: match your ParseCondig properties:
-    var welcomeMessage: String?
-    var winningNumber: Int?
+	@NullableProperty var welcomeMessage: String?
+	@NullableProperty var winningNumber: Int?
 }
 
 /*: Go to your Parse Dashboard and click `Config->Create a parameter`:
diff --git a/ParseSwift.playground/Pages/17 - SwiftUI - Finding Objects.xcplaygroundpage/Contents.swift b/ParseSwift.playground/Pages/17 - SwiftUI - Finding Objects.xcplaygroundpage/Contents.swift
index 83b89fa58..c27a31649 100644
--- a/ParseSwift.playground/Pages/17 - SwiftUI - Finding Objects.xcplaygroundpage/Contents.swift	
+++ b/ParseSwift.playground/Pages/17 - SwiftUI - Finding Objects.xcplaygroundpage/Contents.swift	
@@ -28,9 +28,9 @@ struct GameScore: ParseObject {
 
     //: Your own properties.
     var score: Int = 0
-    var location: ParseGeoPoint?
-    var name: String?
-    var myFiles: [ParseFile]?
+	@NullableProperty var location: ParseGeoPoint?
+	@NullableProperty var name: String?
+	@NullableProperty var myFiles: [ParseFile]?
 }
 
 //: It's recommended to place custom initializers in an extension
diff --git a/ParseSwift.playground/Pages/18 - SwiftUI - Finding Objects With Custom ViewModel.xcplaygroundpage/Contents.swift b/ParseSwift.playground/Pages/18 - SwiftUI - Finding Objects With Custom ViewModel.xcplaygroundpage/Contents.swift
index a7367d2f8..c0c685a9c 100644
--- a/ParseSwift.playground/Pages/18 - SwiftUI - Finding Objects With Custom ViewModel.xcplaygroundpage/Contents.swift	
+++ b/ParseSwift.playground/Pages/18 - SwiftUI - Finding Objects With Custom ViewModel.xcplaygroundpage/Contents.swift	
@@ -29,8 +29,8 @@ struct GameScore: ParseObject {
 
     //: Your own properties.
     var score: Int = 0
-    var location: ParseGeoPoint?
-    var name: String?
+	@NullableProperty var location: ParseGeoPoint?
+	@NullableProperty var name: String?
 }
 
 //: It's recommended to place custom initializers in an extension
diff --git a/ParseSwift.playground/Pages/19 - SwiftUI - LiveQuery.xcplaygroundpage/Contents.swift b/ParseSwift.playground/Pages/19 - SwiftUI - LiveQuery.xcplaygroundpage/Contents.swift
index ab24881d9..ed6b0d2d9 100644
--- a/ParseSwift.playground/Pages/19 - SwiftUI - LiveQuery.xcplaygroundpage/Contents.swift	
+++ b/ParseSwift.playground/Pages/19 - SwiftUI - LiveQuery.xcplaygroundpage/Contents.swift	
@@ -27,8 +27,8 @@ struct GameScore: ParseObject {
 
     //: Your own properties.
     var score: Int = 0
-    var location: ParseGeoPoint?
-    var name: String?
+	@NullableProperty var location: ParseGeoPoint?
+	@NullableProperty var name: String?
 }
 
 //: It's recommended to place custom initializers in an extension
diff --git a/ParseSwift.playground/Pages/2 - Finding Objects.xcplaygroundpage/Contents.swift b/ParseSwift.playground/Pages/2 - Finding Objects.xcplaygroundpage/Contents.swift
index 3a6dcdacc..f4502caea 100644
--- a/ParseSwift.playground/Pages/2 - Finding Objects.xcplaygroundpage/Contents.swift	
+++ b/ParseSwift.playground/Pages/2 - Finding Objects.xcplaygroundpage/Contents.swift	
@@ -20,9 +20,9 @@ struct GameScore: ParseObject {
     var ACL: ParseACL?
 
     //: Your own properties.
-    var score: Int?
-    var timeStamp: Date? = Date()
-    var oldScore: Int?
+	@NullableProperty var score: Int?
+	@NullableProperty var timeStamp: Date? = Date()
+	@NullableProperty var oldScore: Int?
 }
 
 var score = GameScore()
diff --git a/ParseSwift.playground/Pages/3 - User - Sign Up.xcplaygroundpage/Contents.swift b/ParseSwift.playground/Pages/3 - User - Sign Up.xcplaygroundpage/Contents.swift
index 0227b2a47..b9f1436f9 100644
--- a/ParseSwift.playground/Pages/3 - User - Sign Up.xcplaygroundpage/Contents.swift	
+++ b/ParseSwift.playground/Pages/3 - User - Sign Up.xcplaygroundpage/Contents.swift	
@@ -28,7 +28,7 @@ struct User: ParseUser {
     var authData: [String: [String: String]?]?
 
     //: Your custom keys.
-    var customKey: String?
+	@NullableProperty var customKey: String?
 }
 
 /*: Sign up user asynchronously - Performs work on background
diff --git a/ParseSwift.playground/Pages/4 - User - Continued.xcplaygroundpage/Contents.swift b/ParseSwift.playground/Pages/4 - User - Continued.xcplaygroundpage/Contents.swift
index b554f0c62..7fd9c6167 100644
--- a/ParseSwift.playground/Pages/4 - User - Continued.xcplaygroundpage/Contents.swift	
+++ b/ParseSwift.playground/Pages/4 - User - Continued.xcplaygroundpage/Contents.swift	
@@ -28,10 +28,10 @@ struct User: ParseUser {
     var authData: [String: [String: String]?]?
 
     //: Your custom keys.
-    var customKey: String?
-    var score: GameScore?
-    var targetScore: GameScore?
-    var allScores: [GameScore]?
+	@NullableProperty var customKey: String?
+	@NullableProperty var score: GameScore?
+	@NullableProperty var targetScore: GameScore?
+	@NullableProperty var allScores: [GameScore]?
 
     /*:
      It's recommended the developer adds the emptyObject computed property or similar.
@@ -68,7 +68,7 @@ struct GameScore: ParseObject {
     var ACL: ParseACL?
 
     //: Your own properties.
-    var score: Int? = 0
+	@NullableProperty var score: Int? = 0
 }
 
 //: It's recommended to place custom initializers in an extension
diff --git a/ParseSwift.playground/Pages/6 - Installation.xcplaygroundpage/Contents.swift b/ParseSwift.playground/Pages/6 - Installation.xcplaygroundpage/Contents.swift
index 035eb198b..816159289 100644
--- a/ParseSwift.playground/Pages/6 - Installation.xcplaygroundpage/Contents.swift	
+++ b/ParseSwift.playground/Pages/6 - Installation.xcplaygroundpage/Contents.swift	
@@ -34,7 +34,7 @@ struct Installation: ParseInstallation {
     var localeIdentifier: String?
 
     //: Your custom keys
-    var customKey: String?
+	@NullableProperty var customKey: String?
 
     /*:
      It's recommended the developer adds the emptyObject computed property or similar.
diff --git a/ParseSwift.playground/Pages/7 - GeoPoint.xcplaygroundpage/Contents.swift b/ParseSwift.playground/Pages/7 - GeoPoint.xcplaygroundpage/Contents.swift
index be7f9da72..0ef6dbf84 100644
--- a/ParseSwift.playground/Pages/7 - GeoPoint.xcplaygroundpage/Contents.swift	
+++ b/ParseSwift.playground/Pages/7 - GeoPoint.xcplaygroundpage/Contents.swift	
@@ -23,7 +23,7 @@ struct GameScore: ParseObject {
     var location: ParseGeoPoint?
 
     //: Your own properties
-    var score: Int?
+	@NullableProperty var score: Int?
 }
 
 //: It's recommended to place custom initializers in an extension
diff --git a/ParseSwift.playground/Pages/8 - Pointers.xcplaygroundpage/Contents.swift b/ParseSwift.playground/Pages/8 - Pointers.xcplaygroundpage/Contents.swift
index 30cd238fc..129c8f6dc 100644
--- a/ParseSwift.playground/Pages/8 - Pointers.xcplaygroundpage/Contents.swift	
+++ b/ParseSwift.playground/Pages/8 - Pointers.xcplaygroundpage/Contents.swift	
@@ -23,7 +23,7 @@ struct Book: ParseObject {
     var relatedBook: Pointer<Book>?
 
     //: Your own properties.
-    var title: String?
+	@NullableProperty var title: String?
 }
 
 //: It's recommended to place custom initializers in an extension
@@ -45,7 +45,7 @@ struct Author: ParseObject {
     //: Your own properties.
     var name: String
     var book: Book
-    var otherBooks: [Book]?
+	@NullableProperty var otherBooks: [Book]?
 
     init() {
         self.name = "hello"
diff --git a/ParseSwift.playground/Pages/9 - Files.xcplaygroundpage/Contents.swift b/ParseSwift.playground/Pages/9 - Files.xcplaygroundpage/Contents.swift
index d1231d133..709373697 100644
--- a/ParseSwift.playground/Pages/9 - Files.xcplaygroundpage/Contents.swift	
+++ b/ParseSwift.playground/Pages/9 - Files.xcplaygroundpage/Contents.swift	
@@ -23,8 +23,8 @@ struct GameScore: ParseObject {
 
     //: Your own properties.
     var score: Int = 0
-    var profilePicture: ParseFile?
-    var myData: ParseFile?
+	@NullableProperty var profilePicture: ParseFile?
+	@NullableProperty var myData: ParseFile?
 }
 
 //: It's recommended to place custom initializers in an extension
diff --git a/ParseSwift.xcodeproj/project.pbxproj b/ParseSwift.xcodeproj/project.pbxproj
index d4bcbe907..84587b92d 100644
--- a/ParseSwift.xcodeproj/project.pbxproj
+++ b/ParseSwift.xcodeproj/project.pbxproj
@@ -587,6 +587,10 @@
 		91F346C3269B88F7005727B6 /* ParseCloudViewModelTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 91F346C2269B88F7005727B6 /* ParseCloudViewModelTests.swift */; };
 		91F346C4269B88F7005727B6 /* ParseCloudViewModelTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 91F346C2269B88F7005727B6 /* ParseCloudViewModelTests.swift */; };
 		91F346C5269B88F7005727B6 /* ParseCloudViewModelTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 91F346C2269B88F7005727B6 /* ParseCloudViewModelTests.swift */; };
+		98A7D7BC272AF07300F5F190 /* NullableProperty.swift in Sources */ = {isa = PBXBuildFile; fileRef = 98A7D7BB272AF07300F5F190 /* NullableProperty.swift */; };
+		98A7D7BD272AF07300F5F190 /* NullableProperty.swift in Sources */ = {isa = PBXBuildFile; fileRef = 98A7D7BB272AF07300F5F190 /* NullableProperty.swift */; };
+		98A7D7BE272AF07300F5F190 /* NullableProperty.swift in Sources */ = {isa = PBXBuildFile; fileRef = 98A7D7BB272AF07300F5F190 /* NullableProperty.swift */; };
+		98A7D7BF272AF07300F5F190 /* NullableProperty.swift in Sources */ = {isa = PBXBuildFile; fileRef = 98A7D7BB272AF07300F5F190 /* NullableProperty.swift */; };
 		F971F4F624DE381A006CB79B /* ParseEncoderExtraTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = F971F4F524DE381A006CB79B /* ParseEncoderExtraTests.swift */; };
 		F97B45CE24D9C6F200F4A88B /* ParseCoding.swift in Sources */ = {isa = PBXBuildFile; fileRef = F97B45B424D9C6F200F4A88B /* ParseCoding.swift */; };
 		F97B45CF24D9C6F200F4A88B /* ParseCoding.swift in Sources */ = {isa = PBXBuildFile; fileRef = F97B45B424D9C6F200F4A88B /* ParseCoding.swift */; };
@@ -961,6 +965,7 @@
 		91F346B8269B766C005727B6 /* CloudViewModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CloudViewModel.swift; sourceTree = "<group>"; };
 		91F346BD269B77B5005727B6 /* CloudObservable.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CloudObservable.swift; sourceTree = "<group>"; };
 		91F346C2269B88F7005727B6 /* ParseCloudViewModelTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ParseCloudViewModelTests.swift; sourceTree = "<group>"; };
+		98A7D7BB272AF07300F5F190 /* NullableProperty.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = NullableProperty.swift; sourceTree = "<group>"; };
 		F971F4F524DE381A006CB79B /* ParseEncoderExtraTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ParseEncoderExtraTests.swift; sourceTree = "<group>"; };
 		F97B45B424D9C6F200F4A88B /* ParseCoding.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ParseCoding.swift; sourceTree = "<group>"; };
 		F97B45B524D9C6F200F4A88B /* AnyDecodable.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = AnyDecodable.swift; sourceTree = "<group>"; };
@@ -1480,6 +1485,7 @@
 				F97B45B824D9C6F200F4A88B /* AnyCodable.swift */,
 				F97B45B524D9C6F200F4A88B /* AnyDecodable.swift */,
 				F97B45B924D9C6F200F4A88B /* AnyEncodable.swift */,
+				98A7D7BB272AF07300F5F190 /* NullableProperty.swift */,
 				F97B45B724D9C6F200F4A88B /* Extensions.swift */,
 				F97B45B424D9C6F200F4A88B /* ParseCoding.swift */,
 				F97B45B624D9C6F200F4A88B /* ParseEncoder.swift */,
@@ -2089,6 +2095,7 @@
 				70C5509225B4A99100B5DBC2 /* AddRelation.swift in Sources */,
 				708D035225215F9B00646C70 /* Deletable.swift in Sources */,
 				F97B466424D9C88600F4A88B /* SecureStorage.swift in Sources */,
+				98A7D7BC272AF07300F5F190 /* NullableProperty.swift in Sources */,
 				7004C22025B63C7A005E0AD9 /* ParseRelation.swift in Sources */,
 				7003959525A10DFC0052CB31 /* Messages.swift in Sources */,
 				703B091126BD992E005A112F /* ParseOperation+async.swift in Sources */,
@@ -2298,6 +2305,7 @@
 				70C5509325B4A99100B5DBC2 /* AddRelation.swift in Sources */,
 				708D035325215F9B00646C70 /* Deletable.swift in Sources */,
 				F97B466524D9C88600F4A88B /* SecureStorage.swift in Sources */,
+				98A7D7BD272AF07300F5F190 /* NullableProperty.swift in Sources */,
 				7004C22125B63C7A005E0AD9 /* ParseRelation.swift in Sources */,
 				7003959625A10DFC0052CB31 /* Messages.swift in Sources */,
 				703B091226BD992E005A112F /* ParseOperation+async.swift in Sources */,
@@ -2602,6 +2610,7 @@
 				70C5509525B4A99100B5DBC2 /* AddRelation.swift in Sources */,
 				708D035525215F9B00646C70 /* Deletable.swift in Sources */,
 				70110D55250680140091CC1D /* ParseConstants.swift in Sources */,
+				98A7D7BF272AF07300F5F190 /* NullableProperty.swift in Sources */,
 				7004C22325B63C7A005E0AD9 /* ParseRelation.swift in Sources */,
 				7003959825A10DFC0052CB31 /* Messages.swift in Sources */,
 				703B091426BD992E005A112F /* ParseOperation+async.swift in Sources */,
@@ -2725,6 +2734,7 @@
 				70C5509425B4A99100B5DBC2 /* AddRelation.swift in Sources */,
 				708D035425215F9B00646C70 /* Deletable.swift in Sources */,
 				70110D54250680140091CC1D /* ParseConstants.swift in Sources */,
+				98A7D7BE272AF07300F5F190 /* NullableProperty.swift in Sources */,
 				7004C22225B63C7A005E0AD9 /* ParseRelation.swift in Sources */,
 				7003959725A10DFC0052CB31 /* Messages.swift in Sources */,
 				703B091326BD992E005A112F /* ParseOperation+async.swift in Sources */,
diff --git a/Sources/ParseSwift/Coding/NullableProperty.swift b/Sources/ParseSwift/Coding/NullableProperty.swift
new file mode 100644
index 000000000..bad4b818f
--- /dev/null
+++ b/Sources/ParseSwift/Coding/NullableProperty.swift
@@ -0,0 +1,64 @@
+//
+//  NullableProperty.swift
+//
+//  Created by Steven Grosmark on 6/10/20.
+//  Source: https://github.com/g-mark/NullCodable
+//
+
+import Foundation
+
+/// Property wrapper that encodes `nil` optional values as a delete operation
+/// when encoded using `JSONEncoder`.
+///
+/// For example, adding `@NullableProperty` like this:
+/// ```swift
+/// struct Test: Codable {
+///     @NullableProperty var name: String? = nil
+/// }
+/// ```
+///
+@propertyWrapper
+public struct NullableProperty<Wrapped> {
+
+    public var wrappedValue: Wrapped?
+
+    public init(wrappedValue: Wrapped?) {
+        self.wrappedValue = wrappedValue
+    }
+}
+
+extension NullableProperty: Encodable where Wrapped: Encodable {
+
+    public func encode(to encoder: Encoder) throws {
+        var container = encoder.singleValueContainer()
+        switch wrappedValue {
+        case .some(let value):
+            try container.encode(value)
+
+        case .none:
+            try container.encode(Delete())
+        }
+    }
+}
+
+extension NullableProperty: Decodable where Wrapped: Decodable {
+
+    public init(from decoder: Decoder) throws {
+        let container = try decoder.singleValueContainer()
+        if !container.decodeNil() {
+            wrappedValue = try container.decode(Wrapped.self)
+        }
+    }
+}
+
+extension NullableProperty: Hashable where Wrapped: Hashable { }
+extension NullableProperty: Equatable where Wrapped: Equatable { }
+
+extension KeyedDecodingContainer {
+
+    public func decode<Wrapped>(_ type: NullableProperty<Wrapped>.Type, forKey key: KeyedDecodingContainer<K>.Key)
+    throws -> NullableProperty<Wrapped> where Wrapped: Decodable {
+        return try decodeIfPresent(NullableProperty<Wrapped>.self, forKey: key) ??
+        NullableProperty<Wrapped>(wrappedValue: nil)
+    }
+}