diff --git a/app/src/main/graphql/createOrUpdateBackingAddress.graphql b/app/src/main/graphql/createOrUpdateBackingAddress.graphql
new file mode 100644
index 0000000000..6a07fe4015
--- /dev/null
+++ b/app/src/main/graphql/createOrUpdateBackingAddress.graphql
@@ -0,0 +1,5 @@
+mutation CreateOrUpdateBackingAddress($input: CreateOrUpdateBackingAddressInput!) {
+    createOrUpdateBackingAddress(input : $input) {
+      success
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/kickstarter/mock/services/MockApolloClient.kt b/app/src/main/java/com/kickstarter/mock/services/MockApolloClient.kt
index 9500ada2b3..cab3cc92ff 100644
--- a/app/src/main/java/com/kickstarter/mock/services/MockApolloClient.kt
+++ b/app/src/main/java/com/kickstarter/mock/services/MockApolloClient.kt
@@ -47,6 +47,7 @@ import com.kickstarter.services.apiresponses.updatesresponse.UpdatesGraphQlEnvel
 import com.kickstarter.services.mutations.CreateAttributionEventData
 import com.kickstarter.services.mutations.CreateBackingData
 import com.kickstarter.services.mutations.CreateCheckoutData
+import com.kickstarter.services.mutations.CreateOrUpdateBackingAddressData
 import com.kickstarter.services.mutations.PostCommentData
 import com.kickstarter.services.mutations.SavePaymentMethodData
 import com.kickstarter.services.mutations.UpdateBackingData
@@ -299,6 +300,10 @@ open class MockApolloClientV2 : ApolloClientTypeV2 {
     override fun createPaymentIntent(createPaymentIntentInput: CreatePaymentIntentInput): io.reactivex.Observable<String> {
         return io.reactivex.Observable.empty()
     }
+
+    override fun createOrUpdateBackingAddress(eventInput: CreateOrUpdateBackingAddressData): io.reactivex.Observable<Boolean> {
+        return io.reactivex.Observable.empty()
+    }
 }
 
 open class MockApolloClient : ApolloClientType {
@@ -537,15 +542,6 @@ open class MockApolloClient : ApolloClientType {
     }
 
     override fun triggerThirdPartyEvent(eventInput: TPEventInputData): Observable<Pair<Boolean, String>> {
-        return Observable.just(
-//            TriggerThirdPartyEventMutation.Data(
-//                TriggerThirdPartyEventMutation
-//                    .TriggerThirdPartyEvent(
-//                        "",
-//                        true
-//                    )
-//            )
-            Pair(true, "")
-        )
+        return Observable.just(Pair(true, ""))
     }
 }
diff --git a/app/src/main/java/com/kickstarter/services/KSApolloClientV2.kt b/app/src/main/java/com/kickstarter/services/KSApolloClientV2.kt
index a4fbf5fe41..40dadf203d 100644
--- a/app/src/main/java/com/kickstarter/services/KSApolloClientV2.kt
+++ b/app/src/main/java/com/kickstarter/services/KSApolloClientV2.kt
@@ -69,6 +69,7 @@ import com.kickstarter.services.apiresponses.updatesresponse.UpdatesGraphQlEnvel
 import com.kickstarter.services.mutations.CreateAttributionEventData
 import com.kickstarter.services.mutations.CreateBackingData
 import com.kickstarter.services.mutations.CreateCheckoutData
+import com.kickstarter.services.mutations.CreateOrUpdateBackingAddressData
 import com.kickstarter.services.mutations.PostCommentData
 import com.kickstarter.services.mutations.SavePaymentMethodData
 import com.kickstarter.services.mutations.UpdateBackingData
@@ -79,6 +80,7 @@ import com.kickstarter.services.transformers.complexRewardItemsTransformer
 import com.kickstarter.services.transformers.decodeRelayId
 import com.kickstarter.services.transformers.encodeRelayId
 import com.kickstarter.services.transformers.getCreateAttributionEventMutation
+import com.kickstarter.services.transformers.getCreateOrUpdateBackingAddressMutation
 import com.kickstarter.services.transformers.getTriggerThirdPartyEventMutation
 import com.kickstarter.services.transformers.projectTransformer
 import com.kickstarter.services.transformers.rewardTransformer
@@ -192,6 +194,7 @@ interface ApolloClientTypeV2 {
     ): Observable<Pair<String, Boolean>>
 
     fun createAttributionEvent(eventInput: CreateAttributionEventData): Observable<Boolean>
+    fun createOrUpdateBackingAddress(eventInput: CreateOrUpdateBackingAddressData): Observable<Boolean>
 }
 
 private const val PAGE_SIZE = 25
@@ -1630,4 +1633,32 @@ class KSApolloClientV2(val service: ApolloClient, val gson: Gson) : ApolloClient
             return@defer ps
         }
     }
+
+    override fun createOrUpdateBackingAddress(eventInput: CreateOrUpdateBackingAddressData): Observable<Boolean> {
+        return Observable.defer {
+            val ps = PublishSubject.create<Boolean>()
+
+            val mutation = getCreateOrUpdateBackingAddressMutation(eventInput)
+
+            service.mutate(mutation)
+                .enqueue(object : ApolloCall.Callback<CreateOrUpdateBackingAddressMutation.Data>() {
+                    override fun onFailure(exception: ApolloException) {
+                        ps.onError(exception)
+                    }
+
+                    override fun onResponse(response: Response<CreateOrUpdateBackingAddressMutation.Data>) {
+                        if (response.hasErrors()) {
+                            ps.onError(Exception(response.errors?.first()?.message ?: ""))
+                        }
+
+                        response.data?.let {
+                            val isSuccess = it.createOrUpdateBackingAddress()?.success() ?: false
+                            ps.onNext(isSuccess)
+                        }
+                        ps.onComplete()
+                    }
+                })
+            return@defer ps
+        }
+    }
 }
diff --git a/app/src/main/java/com/kickstarter/services/mutations/CreateOrUpdateBackingAddressData.kt b/app/src/main/java/com/kickstarter/services/mutations/CreateOrUpdateBackingAddressData.kt
new file mode 100644
index 0000000000..ee3cce28e6
--- /dev/null
+++ b/app/src/main/java/com/kickstarter/services/mutations/CreateOrUpdateBackingAddressData.kt
@@ -0,0 +1,11 @@
+package com.kickstarter.services.mutations
+
+/***
+ * CreateOrUpdateBackingAddressData is the corresponding internal data model to the GraphQL model
+ * [CreateOrUpdateBackingAddressInput]
+ */
+data class CreateOrUpdateBackingAddressData(
+    val backingId: String,
+    val addressID: String,
+    val clientMutationId: String? = null
+)
diff --git a/app/src/main/java/com/kickstarter/services/transformers/GraphQLTransformers.kt b/app/src/main/java/com/kickstarter/services/transformers/GraphQLTransformers.kt
index 4fd0801c51..0b6829fa8b 100644
--- a/app/src/main/java/com/kickstarter/services/transformers/GraphQLTransformers.kt
+++ b/app/src/main/java/com/kickstarter/services/transformers/GraphQLTransformers.kt
@@ -1,6 +1,7 @@
 package com.kickstarter.services.transformers
 
 import CreateAttributionEventMutation
+import CreateOrUpdateBackingAddressMutation
 import TriggerThirdPartyEventMutation
 import UserPrivacyQuery
 import com.google.android.gms.common.util.Base64Utils
@@ -32,6 +33,7 @@ import com.kickstarter.models.Video
 import com.kickstarter.models.Web
 import com.kickstarter.services.apiresponses.ShippingRulesEnvelope
 import com.kickstarter.services.mutations.CreateAttributionEventData
+import com.kickstarter.services.mutations.CreateOrUpdateBackingAddressData
 import com.kickstarter.viewmodels.usecases.TPEventInputData
 import fragment.FullProject
 import fragment.ProjectCard
@@ -40,6 +42,7 @@ import org.joda.time.DateTime
 import type.AppDataInput
 import type.CollaboratorPermission
 import type.CreateAttributionEventInput
+import type.CreateOrUpdateBackingAddressInput
 import type.CreditCardPaymentType
 import type.CurrencyCode
 import type.RewardType
@@ -886,3 +889,13 @@ fun getCreateAttributionEventMutation(eventInput: CreateAttributionEventData, gs
     return CreateAttributionEventMutation.builder().input(graphInput)
         .build()
 }
+
+fun getCreateOrUpdateBackingAddressMutation(eventInput: CreateOrUpdateBackingAddressData): CreateOrUpdateBackingAddressMutation {
+    val graphInput =
+        CreateOrUpdateBackingAddressInput.builder()
+            .addressId(eventInput.addressID)
+            .backingId(eventInput.backingId)
+            .build()
+
+    return CreateOrUpdateBackingAddressMutation.builder().input(graphInput).build()
+}