diff --git a/stripe/src/main/java/com/stripe/android/model/BankAccount.kt b/stripe/src/main/java/com/stripe/android/model/BankAccount.kt
index 5d4cc64aac6..11ce6530c09 100644
--- a/stripe/src/main/java/com/stripe/android/model/BankAccount.kt
+++ b/stripe/src/main/java/com/stripe/android/model/BankAccount.kt
@@ -1,7 +1,9 @@
 package com.stripe.android.model
 
+import android.os.Parcelable
 import androidx.annotation.Size
 import androidx.annotation.StringDef
+import kotlinx.android.parcel.Parcelize
 import org.json.JSONObject
 
 /**
@@ -10,6 +12,7 @@ import org.json.JSONObject
  * [the Stripe
  * documentation.](https://stripe.com/docs/api/java#create_bank_account_token)
  */
+@Parcelize
 data class BankAccount internal constructor(
     val accountNumber: String?,
     val accountHolderName: String?,
@@ -23,7 +26,7 @@ data class BankAccount internal constructor(
     val fingerprint: String?,
     val last4: String?,
     val routingNumber: String?
-) : StripeParamsModel {
+) : StripeParamsModel, Parcelable {
 
     @Retention(AnnotationRetention.SOURCE)
     @StringDef(BankAccountType.COMPANY, BankAccountType.INDIVIDUAL)
diff --git a/stripe/src/main/java/com/stripe/android/model/Customer.kt b/stripe/src/main/java/com/stripe/android/model/Customer.kt
index 66c7522729c..4c6b144557c 100644
--- a/stripe/src/main/java/com/stripe/android/model/Customer.kt
+++ b/stripe/src/main/java/com/stripe/android/model/Customer.kt
@@ -3,6 +3,7 @@ package com.stripe.android.model
 import com.stripe.android.model.StripeJsonUtils.optBoolean
 import com.stripe.android.model.StripeJsonUtils.optInteger
 import com.stripe.android.model.StripeJsonUtils.optString
+import kotlinx.android.parcel.Parcelize
 import org.json.JSONArray
 import org.json.JSONException
 import org.json.JSONObject
@@ -10,7 +11,8 @@ import org.json.JSONObject
 /**
  * Model for a Stripe Customer object
  */
-data class Customer private constructor(
+@Parcelize
+data class Customer internal constructor(
     val id: String?,
     val defaultSource: String?,
     val shippingInformation: ShippingInformation?,
diff --git a/stripe/src/main/java/com/stripe/android/model/CustomerSource.kt b/stripe/src/main/java/com/stripe/android/model/CustomerSource.kt
index 11b53467b7f..1bf1cd77e66 100644
--- a/stripe/src/main/java/com/stripe/android/model/CustomerSource.kt
+++ b/stripe/src/main/java/com/stripe/android/model/CustomerSource.kt
@@ -1,12 +1,14 @@
 package com.stripe.android.model
 
 import com.stripe.android.model.StripeJsonUtils.optString
+import kotlinx.android.parcel.Parcelize
 import org.json.JSONObject
 
 /**
  * Model of the "data" object inside a [Customer] "source" object.
  */
-data class CustomerSource private constructor(
+@Parcelize
+data class CustomerSource internal constructor(
     private val stripePaymentSource: StripePaymentSource
 ) : StripeModel(), StripePaymentSource {
 
diff --git a/stripe/src/main/java/com/stripe/android/model/PaymentIntent.kt b/stripe/src/main/java/com/stripe/android/model/PaymentIntent.kt
index 400bf8795a3..fff63df7ecb 100644
--- a/stripe/src/main/java/com/stripe/android/model/PaymentIntent.kt
+++ b/stripe/src/main/java/com/stripe/android/model/PaymentIntent.kt
@@ -1,11 +1,14 @@
 package com.stripe.android.model
 
 import android.net.Uri
+import android.os.Parcelable
 import com.stripe.android.model.StripeJsonUtils.optBoolean
 import com.stripe.android.model.StripeJsonUtils.optCurrency
 import com.stripe.android.model.StripeJsonUtils.optLong
 import com.stripe.android.model.StripeJsonUtils.optMap
 import com.stripe.android.model.StripeJsonUtils.optString
+import kotlinx.android.parcel.Parcelize
+import kotlinx.android.parcel.RawValue
 import org.json.JSONException
 import org.json.JSONObject
 
@@ -15,6 +18,7 @@ import org.json.JSONObject
  * - [Payment Intents Overview](https://stripe.com/docs/payments/payment-intents)
  * - [PaymentIntents API](https://stripe.com/docs/api/payment_intents)
  */
+@Parcelize
 data class PaymentIntent internal constructor(
     /**
      * @return Unique identifier for the object.
@@ -103,7 +107,7 @@ data class PaymentIntent internal constructor(
      * @return If present, this property tells you what actions you need to take in order for your
      * customer to fulfill a payment using the provided source.
      */
-    val nextAction: Map<String, Any?>?,
+    val nextAction: Map<String, @RawValue Any?>?,
 
     /**
      * @return ID of the payment method (a PaymentMethod, Card, BankAccount, or saved Source object)
@@ -186,7 +190,8 @@ data class PaymentIntent internal constructor(
      *
      * See [last_payment_error](https://stripe.com/docs/api/payment_intents/object#payment_intent_object-last_payment_error).
      */
-    data class Error private constructor(
+    @Parcelize
+    data class Error internal constructor(
 
         /**
          * For card errors, the ID of the failed charge.
@@ -233,7 +238,7 @@ data class PaymentIntent internal constructor(
          * The type of error returned.
          */
         val type: Type?
-    ) {
+    ) : Parcelable {
         enum class Type(val code: String) {
             ApiConnectionError("api_connection_error"),
             ApiError("api_error"),
diff --git a/stripe/src/main/java/com/stripe/android/model/SetupIntent.kt b/stripe/src/main/java/com/stripe/android/model/SetupIntent.kt
index bcbdb474b6c..a0dbce58fd1 100644
--- a/stripe/src/main/java/com/stripe/android/model/SetupIntent.kt
+++ b/stripe/src/main/java/com/stripe/android/model/SetupIntent.kt
@@ -1,8 +1,11 @@
 package com.stripe.android.model
 
 import android.net.Uri
+import android.os.Parcelable
 import com.stripe.android.model.StripeJsonUtils.optMap
 import com.stripe.android.model.StripeJsonUtils.optString
+import kotlinx.android.parcel.Parcelize
+import kotlinx.android.parcel.RawValue
 import org.json.JSONException
 import org.json.JSONObject
 
@@ -10,7 +13,8 @@ import org.json.JSONObject
  * A SetupIntent guides you through the process of setting up a customer's payment credentials for
  * future payments.
  */
-data class SetupIntent private constructor(
+@Parcelize
+data class SetupIntent internal constructor(
 
     /**
      * @return Unique identifier for the object.
@@ -50,7 +54,7 @@ data class SetupIntent private constructor(
      */
     override val isLiveMode: Boolean,
 
-    private val nextAction: Map<String, Any?>?,
+    private val nextAction: Map<String, @RawValue Any?>?,
 
     override val nextActionType: StripeIntent.NextActionType? = null,
 
@@ -137,7 +141,8 @@ data class SetupIntent private constructor(
      *
      * See [last_setup_error](https://stripe.com/docs/api/setup_intents/object#setup_intent_object-last_setup_error).
      */
-    data class Error private constructor(
+    @Parcelize
+    data class Error internal constructor(
 
         /**
          * For some errors that could be handled programmatically, a short string indicating the
@@ -179,7 +184,7 @@ data class SetupIntent private constructor(
          * The type of error returned.
          */
         val type: Type?
-    ) {
+    ) : Parcelable {
         enum class Type(val code: String) {
             ApiConnectionError("api_connection_error"),
             ApiError("api_error"),
diff --git a/stripe/src/main/java/com/stripe/android/model/Source.kt b/stripe/src/main/java/com/stripe/android/model/Source.kt
index 4cb6a67e2bf..ac260b13659 100644
--- a/stripe/src/main/java/com/stripe/android/model/Source.kt
+++ b/stripe/src/main/java/com/stripe/android/model/Source.kt
@@ -1,11 +1,14 @@
 package com.stripe.android.model
 
+import android.os.Parcelable
 import androidx.annotation.Size
 import androidx.annotation.StringDef
 import com.stripe.android.model.Source.SourceFlow
 import com.stripe.android.model.Source.SourceType
 import com.stripe.android.model.StripeJsonUtils.optLong
 import com.stripe.android.model.StripeJsonUtils.optString
+import kotlinx.android.parcel.Parcelize
+import kotlinx.android.parcel.RawValue
 import org.json.JSONException
 import org.json.JSONObject
 
@@ -14,6 +17,7 @@ import org.json.JSONObject
  *
  * See [Sources API Reference](https://stripe.com/docs/api/sources/object).
  */
+@Parcelize
 data class Source internal constructor(
     /**
      * Unique identifier for the object.
@@ -95,7 +99,8 @@ data class Source internal constructor(
     @param:SourceStatus @field:SourceStatus @get:SourceStatus
     val status: String? = null,
 
-    val sourceTypeData: Map<String, Any?>? = null,
+    val sourceTypeData: Map<String, @RawValue Any?>? = null,
+
     val sourceTypeModel: StripeSourceTypeModel? = null,
 
     /**
@@ -138,7 +143,7 @@ data class Source internal constructor(
      * every time you charge the source.
      */
     val statementDescriptor: String? = null
-) : StripeModel(), StripePaymentSource {
+) : StripeModel(), StripePaymentSource, Parcelable {
 
     val weChat: WeChat
         get() {
diff --git a/stripe/src/main/java/com/stripe/android/model/SourceCardData.kt b/stripe/src/main/java/com/stripe/android/model/SourceCardData.kt
index 9037fa5444a..1324ee4a0be 100644
--- a/stripe/src/main/java/com/stripe/android/model/SourceCardData.kt
+++ b/stripe/src/main/java/com/stripe/android/model/SourceCardData.kt
@@ -4,14 +4,14 @@ import androidx.annotation.StringDef
 import androidx.annotation.VisibleForTesting
 import com.stripe.android.model.StripeJsonUtils.optInteger
 import com.stripe.android.model.StripeJsonUtils.optString
-import org.json.JSONException
+import kotlinx.android.parcel.Parcelize
 import org.json.JSONObject
 
 /**
  * Model for data contained in the SourceTypeData of a Card Source.
  */
-@Suppress("MemberVisibilityCanBePrivate")
-data class SourceCardData private constructor(
+@Parcelize
+data class SourceCardData internal constructor(
     val addressLine1Check: String?,
     val addressZipCheck: String?,
 
@@ -50,101 +50,6 @@ data class SourceCardData private constructor(
         }
     }
 
-    private class Builder : StripeSourceTypeModel.BaseBuilder() {
-        var addressLine1Check: String? = null
-        var addressZipCheck: String? = null
-        @Card.CardBrand
-        var brand: String? = null
-        var country: String? = null
-        var cvcCheck: String? = null
-        var dynamicLast4: String? = null
-        var expiryMonth: Int? = null
-        var expiryYear: Int? = null
-        @Card.FundingType
-        var funding: String? = null
-        var last4: String? = null
-        @ThreeDSecureStatus
-        var threeDSecureStatus: String? = null
-        var tokenizationMethod: String? = null
-
-        fun setAddressLine1Check(addressLine1Check: String?): Builder {
-            this.addressLine1Check = addressLine1Check
-            return this
-        }
-
-        fun setAddressZipCheck(addressZipCheck: String?): Builder {
-            this.addressZipCheck = addressZipCheck
-            return this
-        }
-
-        fun setBrand(brand: String?): Builder {
-            this.brand = brand
-            return this
-        }
-
-        fun setCountry(country: String?): Builder {
-            this.country = country
-            return this
-        }
-
-        fun setCvcCheck(cvcCheck: String?): Builder {
-            this.cvcCheck = cvcCheck
-            return this
-        }
-
-        fun setDynamicLast4(dynamicLast4: String?): Builder {
-            this.dynamicLast4 = dynamicLast4
-            return this
-        }
-
-        fun setExpiryMonth(expiryMonth: Int?): Builder {
-            this.expiryMonth = expiryMonth
-            return this
-        }
-
-        fun setExpiryYear(expiryYear: Int?): Builder {
-            this.expiryYear = expiryYear
-            return this
-        }
-
-        fun setFunding(funding: String?): Builder {
-            this.funding = funding
-            return this
-        }
-
-        fun setLast4(last4: String?): Builder {
-            this.last4 = last4
-            return this
-        }
-
-        fun setThreeDSecureStatus(threeDSecureStatus: String?): Builder {
-            this.threeDSecureStatus = threeDSecureStatus
-            return this
-        }
-
-        fun setTokenizationMethod(tokenizationMethod: String?): Builder {
-            this.tokenizationMethod = tokenizationMethod
-            return this
-        }
-
-        fun build(): SourceCardData {
-            return SourceCardData(
-                addressLine1Check = addressLine1Check,
-                addressZipCheck = addressZipCheck,
-                brand = brand,
-                country = country,
-                cvcCheck = cvcCheck,
-                dynamicLast4 = dynamicLast4,
-                expiryMonth = expiryMonth,
-                expiryYear = expiryYear,
-                funding = funding,
-                last4 = last4,
-                threeDSecureStatus = threeDSecureStatus,
-                tokenizationMethod = tokenizationMethod
-            )
-        }
-    }
-
     companion object {
         private const val FIELD_ADDRESS_LINE1_CHECK = "address_line1_check"
         private const val FIELD_ADDRESS_ZIP_CHECK = "address_zip_check"
@@ -159,63 +64,34 @@ data class SourceCardData private constructor(
         private const val FIELD_THREE_D_SECURE = "three_d_secure"
         private const val FIELD_TOKENIZATION_METHOD = "tokenization_method"
 
-        private val STANDARD_FIELDS = setOf(
-            FIELD_ADDRESS_LINE1_CHECK,
-            FIELD_ADDRESS_ZIP_CHECK,
-            FIELD_BRAND,
-            FIELD_COUNTRY,
-            FIELD_CVC_CHECK,
-            FIELD_DYNAMIC_LAST4,
-            FIELD_EXP_MONTH,
-            FIELD_EXP_YEAR,
-            FIELD_FUNDING,
-            FIELD_LAST4,
-            FIELD_THREE_D_SECURE,
-            FIELD_TOKENIZATION_METHOD
-        )
-
         @JvmStatic
         fun fromJson(jsonObject: JSONObject?): SourceCardData? {
             if (jsonObject == null) {
                 return null
             }
 
-            val cardData = Builder()
-                .setAddressLine1Check(optString(jsonObject, FIELD_ADDRESS_LINE1_CHECK))
-                .setAddressZipCheck(optString(jsonObject, FIELD_ADDRESS_ZIP_CHECK))
-                .setBrand(Card.asCardBrand(optString(jsonObject, FIELD_BRAND)))
-                .setCountry(optString(jsonObject, FIELD_COUNTRY))
-                .setCvcCheck(optString(jsonObject, FIELD_CVC_CHECK))
-                .setDynamicLast4(optString(jsonObject, FIELD_DYNAMIC_LAST4))
-                .setExpiryMonth(optInteger(jsonObject, FIELD_EXP_MONTH))
-                .setExpiryYear(optInteger(jsonObject, FIELD_EXP_YEAR))
-                .setFunding(Card.asFundingType(optString(jsonObject, FIELD_FUNDING)))
-                .setLast4(optString(jsonObject, FIELD_LAST4))
-                .setThreeDSecureStatus(asThreeDSecureStatus(optString(jsonObject,
-                    FIELD_THREE_D_SECURE)))
-                .setTokenizationMethod(optString(jsonObject, FIELD_TOKENIZATION_METHOD))
-
-            jsonObjectToMapWithoutKeys(jsonObject, STANDARD_FIELDS)?.let { additionalFields ->
-                cardData.setAdditionalFields(additionalFields)
-            }
-
-            return cardData.build()
-        }
-
-        @JvmStatic
-        @VisibleForTesting
-        fun fromString(jsonString: String): SourceCardData? {
-            return try {
-                fromJson(JSONObject(jsonString))
-            } catch (badJson: JSONException) {
-                null
-            }
+            return SourceCardData(
+                addressLine1Check = optString(jsonObject, FIELD_ADDRESS_LINE1_CHECK),
+                addressZipCheck = optString(jsonObject, FIELD_ADDRESS_ZIP_CHECK),
+                brand = Card.asCardBrand(optString(jsonObject, FIELD_BRAND)),
+                country = optString(jsonObject, FIELD_COUNTRY),
+                cvcCheck = optString(jsonObject, FIELD_CVC_CHECK),
+                dynamicLast4 = optString(jsonObject, FIELD_DYNAMIC_LAST4),
+                expiryMonth = optInteger(jsonObject, FIELD_EXP_MONTH),
+                expiryYear = optInteger(jsonObject, FIELD_EXP_YEAR),
+                funding = Card.asFundingType(optString(jsonObject, FIELD_FUNDING)),
+                last4 = optString(jsonObject, FIELD_LAST4),
+                threeDSecureStatus = asThreeDSecureStatus(
+                    optString(jsonObject, FIELD_THREE_D_SECURE)
+                ),
+                tokenizationMethod = optString(jsonObject, FIELD_TOKENIZATION_METHOD)
+            )
         }
 
-        @JvmStatic
+        @JvmSynthetic
         @VisibleForTesting
         @ThreeDSecureStatus
-        fun asThreeDSecureStatus(threeDSecureStatus: String?): String? {
+        internal fun asThreeDSecureStatus(threeDSecureStatus: String?): String? {
             if (StripeJsonUtils.nullIfNullOrEmpty(threeDSecureStatus) == null) {
                 return null
             }
diff --git a/stripe/src/main/java/com/stripe/android/model/SourceCodeVerification.kt b/stripe/src/main/java/com/stripe/android/model/SourceCodeVerification.kt
index 49f978424a8..fcb78cebbe5 100644
--- a/stripe/src/main/java/com/stripe/android/model/SourceCodeVerification.kt
+++ b/stripe/src/main/java/com/stripe/android/model/SourceCodeVerification.kt
@@ -1,7 +1,9 @@
 package com.stripe.android.model
 
+import android.os.Parcelable
 import androidx.annotation.StringDef
 import com.stripe.android.model.StripeJsonUtils.optString
+import kotlinx.android.parcel.Parcelize
 import org.json.JSONObject
 
 /**
@@ -10,10 +12,11 @@ import org.json.JSONObject
  *
  * *Not* source code verification.
  */
-data class SourceCodeVerification private constructor(
+@Parcelize
+data class SourceCodeVerification internal constructor(
     val attemptsRemaining: Int,
     @param:Status @field:Status @get:Status val status: String?
-) : StripeModel() {
+) : StripeModel(), Parcelable {
 
     // Note: these are the same as the values for the @Redirect.Status StringDef.
     // They don't have to stay the same forever, so they are redefined here.
diff --git a/stripe/src/main/java/com/stripe/android/model/SourceOrder.kt b/stripe/src/main/java/com/stripe/android/model/SourceOrder.kt
index 85881b7ef16..268028dbed3 100644
--- a/stripe/src/main/java/com/stripe/android/model/SourceOrder.kt
+++ b/stripe/src/main/java/com/stripe/android/model/SourceOrder.kt
@@ -1,6 +1,8 @@
 package com.stripe.android.model
 
+import android.os.Parcelable
 import com.stripe.android.model.SourceOrder.Item.Type
+import kotlinx.android.parcel.Parcelize
 import org.json.JSONArray
 import org.json.JSONObject
 
@@ -10,6 +12,7 @@ import org.json.JSONObject
  *
  * [API reference](https://stripe.com/docs/api/sources/object#source_object-source_order)
  */
+@Parcelize
 data class SourceOrder internal constructor(
     /**
      * A positive integer in the smallest currency unit (that is, 100 cents for $1.00, or 1 for ¥1,
@@ -37,12 +40,13 @@ data class SourceOrder internal constructor(
      * The shipping address for the order. Present if the order is for goods to be shipped.
      */
     val shipping: Shipping? = null
-) {
+) : Parcelable {
     /**
      * List of items constituting the order.
      *
      * [API reference](https://stripe.com/docs/api/sources/object#source_object-source_order-items)
      */
+    @Parcelize
     data class Item internal constructor(
         /**
          * The type of this order item. Must be [Type.Sku], [Type.Tax], or [Type.Shipping].
@@ -69,7 +73,7 @@ data class SourceOrder internal constructor(
          * instances of the SKU to be ordered.
          */
         val quantity: Int? = null
-    ) {
+    ) : Parcelable {
         enum class Type(private val code: String) {
             Sku("sku"),
             Tax("tax"),
@@ -113,6 +117,7 @@ data class SourceOrder internal constructor(
      *
      * [API reference](https://stripe.com/docs/api/sources/object#source_object-source_order-shipping)
      */
+    @Parcelize
     data class Shipping internal constructor(
         /**
          * Shipping address.
@@ -140,7 +145,7 @@ data class SourceOrder internal constructor(
          * them with commas.
          */
         val trackingNumber: String? = null
-    ) {
+    ) : Parcelable {
         internal companion object {
             private const val FIELD_ADDRESS = "address"
             private const val FIELD_CARRIER = "carrier"
diff --git a/stripe/src/main/java/com/stripe/android/model/SourceOwner.kt b/stripe/src/main/java/com/stripe/android/model/SourceOwner.kt
index 8bf19c38357..c3513fd0870 100644
--- a/stripe/src/main/java/com/stripe/android/model/SourceOwner.kt
+++ b/stripe/src/main/java/com/stripe/android/model/SourceOwner.kt
@@ -1,6 +1,8 @@
 package com.stripe.android.model
 
+import android.os.Parcelable
 import com.stripe.android.model.StripeJsonUtils.optString
+import kotlinx.android.parcel.Parcelize
 import org.json.JSONException
 import org.json.JSONObject
 
@@ -8,6 +10,7 @@ import org.json.JSONObject
  * Model for a [owner](https://stripe.com/docs/api#source_object-owner) object
  * in the Source api.
  */
+@Parcelize
 data class SourceOwner internal constructor(
     val address: Address?,
     val email: String?,
@@ -17,7 +20,7 @@ data class SourceOwner internal constructor(
     val verifiedEmail: String?,
     val verifiedName: String?,
     val verifiedPhone: String?
-) : StripeModel() {
+) : StripeModel(), Parcelable {
     companion object {
 
         private const val VERIFIED = "verified_"
diff --git a/stripe/src/main/java/com/stripe/android/model/SourceReceiver.kt b/stripe/src/main/java/com/stripe/android/model/SourceReceiver.kt
index a9f39c123db..2100e5e5ae1 100644
--- a/stripe/src/main/java/com/stripe/android/model/SourceReceiver.kt
+++ b/stripe/src/main/java/com/stripe/android/model/SourceReceiver.kt
@@ -1,5 +1,7 @@
 package com.stripe.android.model
 
+import android.os.Parcelable
+import kotlinx.android.parcel.Parcelize
 import org.json.JSONException
 import org.json.JSONObject
 
@@ -8,12 +10,13 @@ import org.json.JSONObject
  * [receiver](https://stripe.com/docs/api/sources/object#source_object-receiver) object
  * in the Sources API. Present if the [Source] is a receiver.
  */
-data class SourceReceiver private constructor(
+@Parcelize
+data class SourceReceiver internal constructor(
     val address: String?,
     val amountCharged: Long,
     val amountReceived: Long,
     val amountReturned: Long
-) : StripeModel() {
+) : StripeModel(), Parcelable {
 
     companion object {
         private const val FIELD_ADDRESS = "address"
diff --git a/stripe/src/main/java/com/stripe/android/model/SourceRedirect.kt b/stripe/src/main/java/com/stripe/android/model/SourceRedirect.kt
index 1719f577c50..d7e6a863128 100644
--- a/stripe/src/main/java/com/stripe/android/model/SourceRedirect.kt
+++ b/stripe/src/main/java/com/stripe/android/model/SourceRedirect.kt
@@ -1,8 +1,10 @@
 package com.stripe.android.model
 
+import android.os.Parcelable
 import androidx.annotation.StringDef
 import androidx.annotation.VisibleForTesting
 import com.stripe.android.model.StripeJsonUtils.optString
+import kotlinx.android.parcel.Parcelize
 import org.json.JSONException
 import org.json.JSONObject
 
@@ -10,11 +12,12 @@ import org.json.JSONObject
  * Model for a [redirect](https://stripe.com/docs/api/sources/object#source_object-redirect) object
  * in the Sources API.
  */
-data class SourceRedirect private constructor(
+@Parcelize
+data class SourceRedirect internal constructor(
     val returnUrl: String?,
     @param:Status @field:Status @get:Status val status: String?,
     val url: String?
-) : StripeModel() {
+) : StripeModel(), Parcelable {
 
     @Retention(AnnotationRetention.SOURCE)
     @StringDef(Status.PENDING, Status.SUCCEEDED, Status.FAILED, Status.NOT_REQUIRED)
diff --git a/stripe/src/main/java/com/stripe/android/model/SourceSepaDebitData.kt b/stripe/src/main/java/com/stripe/android/model/SourceSepaDebitData.kt
index 7d1c7287e4c..0c230c038df 100644
--- a/stripe/src/main/java/com/stripe/android/model/SourceSepaDebitData.kt
+++ b/stripe/src/main/java/com/stripe/android/model/SourceSepaDebitData.kt
@@ -1,13 +1,13 @@
 package com.stripe.android.model
 
-import androidx.annotation.VisibleForTesting
 import com.stripe.android.model.StripeJsonUtils.optString
-import org.json.JSONException
+import kotlinx.android.parcel.Parcelize
 import org.json.JSONObject
 
 /**
  * Model for the SourceTypeData contained in a SEPA Debit Source object.
  */
+@Parcelize
 data class SourceSepaDebitData internal constructor(
     val bankCode: String?,
     val branchCode: String?,
@@ -18,63 +18,6 @@ data class SourceSepaDebitData internal constructor(
     val mandateUrl: String?
 ) : StripeSourceTypeModel() {
 
-    private class Builder : StripeSourceTypeModel.BaseBuilder() {
-        var bankCode: String? = null
-        var branchCode: String? = null
-        var country: String? = null
-        var fingerPrint: String? = null
-        var last4: String? = null
-        var mandateReference: String? = null
-        var mandateUrl: String? = null
-
-        internal fun setBankCode(bankCode: String?): Builder {
-            this.bankCode = bankCode
-            return this
-        }
-
-        internal fun setBranchCode(branchCode: String?): Builder {
-            this.branchCode = branchCode
-            return this
-        }
-
-        internal fun setCountry(country: String?): Builder {
-            this.country = country
-            return this
-        }
-
-        internal fun setFingerPrint(fingerPrint: String?): Builder {
-            this.fingerPrint = fingerPrint
-            return this
-        }
-
-        internal fun setLast4(last4: String?): Builder {
-            this.last4 = last4
-            return this
-        }
-
-        internal fun setMandateReference(mandateReference: String?): Builder {
-            this.mandateReference = mandateReference
-            return this
-        }
-
-        internal fun setMandateUrl(mandateUrl: String?): Builder {
-            this.mandateUrl = mandateUrl
-            return this
-        }
-
-        fun build(): SourceSepaDebitData {
-            return SourceSepaDebitData(
-                bankCode = bankCode,
-                branchCode = branchCode,
-                country = country,
-                fingerPrint = fingerPrint,
-                last4 = last4,
-                mandateReference = mandateReference,
-                mandateUrl = mandateUrl
-            )
-        }
-    }
-
     companion object {
         private const val FIELD_BANK_CODE = "bank_code"
         private const val FIELD_BRANCH_CODE = "branch_code"
@@ -84,46 +27,21 @@ data class SourceSepaDebitData internal constructor(
         private const val FIELD_MANDATE_REFERENCE = "mandate_reference"
         private const val FIELD_MANDATE_URL = "mandate_url"
 
-        private val STANDARD_FIELDS = setOf(
-            FIELD_BANK_CODE,
-            FIELD_BRANCH_CODE,
-            FIELD_COUNTRY,
-            FIELD_FINGERPRINT,
-            FIELD_LAST4,
-            FIELD_MANDATE_REFERENCE,
-            FIELD_MANDATE_URL
-        )
-
         @JvmStatic
         fun fromJson(jsonObject: JSONObject?): SourceSepaDebitData? {
             if (jsonObject == null) {
                 return null
             }
 
-            val sepaData = Builder()
-                .setBankCode(optString(jsonObject, FIELD_BANK_CODE))
-                .setBranchCode(optString(jsonObject, FIELD_BRANCH_CODE))
-                .setCountry(optString(jsonObject, FIELD_COUNTRY))
-                .setFingerPrint(optString(jsonObject, FIELD_FINGERPRINT))
-                .setLast4(optString(jsonObject, FIELD_LAST4))
-                .setMandateReference(optString(jsonObject, FIELD_MANDATE_REFERENCE))
-                .setMandateUrl(optString(jsonObject, FIELD_MANDATE_URL))
-
-            val nonStandardFields =
-                jsonObjectToMapWithoutKeys(jsonObject, STANDARD_FIELDS)
-            if (nonStandardFields != null) {
-                sepaData.setAdditionalFields(nonStandardFields)
-            }
-            return sepaData.build()
-        }
-
-        @VisibleForTesting
-        internal fun fromString(jsonString: String): SourceSepaDebitData? {
-            return try {
-                fromJson(JSONObject(jsonString))
-            } catch (badJson: JSONException) {
-                null
-            }
+            return SourceSepaDebitData(
+                bankCode = optString(jsonObject, FIELD_BANK_CODE),
+                branchCode = optString(jsonObject, FIELD_BRANCH_CODE),
+                country = optString(jsonObject, FIELD_COUNTRY),
+                fingerPrint = optString(jsonObject, FIELD_FINGERPRINT),
+                last4 = optString(jsonObject, FIELD_LAST4),
+                mandateReference = optString(jsonObject, FIELD_MANDATE_REFERENCE),
+                mandateUrl = optString(jsonObject, FIELD_MANDATE_URL)
+            )
         }
     }
 }
diff --git a/stripe/src/main/java/com/stripe/android/model/StripeModel.kt b/stripe/src/main/java/com/stripe/android/model/StripeModel.kt
index 8c5ea02a6e8..5c514288731 100644
--- a/stripe/src/main/java/com/stripe/android/model/StripeModel.kt
+++ b/stripe/src/main/java/com/stripe/android/model/StripeModel.kt
@@ -1,11 +1,12 @@
 package com.stripe.android.model
 
+import android.os.Parcelable
 import org.json.JSONArray
 
 /**
  * Model for a Stripe API object.
  */
-abstract class StripeModel {
+abstract class StripeModel : Parcelable {
 
     abstract override fun hashCode(): Int
 
diff --git a/stripe/src/main/java/com/stripe/android/model/StripePaymentSource.kt b/stripe/src/main/java/com/stripe/android/model/StripePaymentSource.kt
index 6db6e7a7a78..f745a6641d4 100644
--- a/stripe/src/main/java/com/stripe/android/model/StripePaymentSource.kt
+++ b/stripe/src/main/java/com/stripe/android/model/StripePaymentSource.kt
@@ -1,8 +1,10 @@
 package com.stripe.android.model
 
+import android.os.Parcelable
+
 /**
  * Represents an object that has an ID field that can be used to create payments with Stripe.
  */
-interface StripePaymentSource {
+interface StripePaymentSource : Parcelable {
     val id: String?
 }
diff --git a/stripe/src/main/java/com/stripe/android/model/StripeSourceTypeModel.kt b/stripe/src/main/java/com/stripe/android/model/StripeSourceTypeModel.kt
index b954f539eef..464b870a376 100644
--- a/stripe/src/main/java/com/stripe/android/model/StripeSourceTypeModel.kt
+++ b/stripe/src/main/java/com/stripe/android/model/StripeSourceTypeModel.kt
@@ -1,50 +1,5 @@
 package com.stripe.android.model
 
-import org.json.JSONArray
-import org.json.JSONObject
+import android.os.Parcelable
 
-abstract class StripeSourceTypeModel : StripeModel() {
-    abstract class BaseBuilder {
-        var additionalFields: Map<String, Any>? = null
-
-        fun setAdditionalFields(additionalFields: Map<String, Any>): BaseBuilder {
-            this.additionalFields = additionalFields
-            return this
-        }
-    }
-
-    companion object {
-        /**
-         * Convert a [JSONObject] to a flat, string-keyed map.
-         *
-         * @param jsonObject the input [JSONObject] to be converted
-         * @param omitKeys a set of keys to be omitted from the map
-         * @return a [Map] representing the input, or `null` if the input is `null`
-         * or if the output would be an empty map.
-         */
-        @JvmStatic
-        fun jsonObjectToMapWithoutKeys(
-            jsonObject: JSONObject?,
-            omitKeys: Set<String>?
-        ): Map<String, Any>? {
-            if (jsonObject == null) {
-                return null
-            }
-
-            val keysToOmit = omitKeys ?: emptySet()
-            val keys = jsonObject.names() ?: JSONArray()
-            return (0 until keys.length())
-                .map { keys.getString(it) }
-                .filterNot { keysToOmit.contains(it) }
-                .mapNotNull { key ->
-                    if (jsonObject.isNull(key)) {
-                        null
-                    } else {
-                        key to jsonObject.opt(key)
-                    }
-                }
-                .toMap()
-                .takeIf { it.isNotEmpty() }
-        }
-    }
-}
+abstract class StripeSourceTypeModel : StripeModel(), Parcelable
diff --git a/stripe/src/main/java/com/stripe/android/model/Token.kt b/stripe/src/main/java/com/stripe/android/model/Token.kt
index 5ce73ab2b09..cbbc826e329 100644
--- a/stripe/src/main/java/com/stripe/android/model/Token.kt
+++ b/stripe/src/main/java/com/stripe/android/model/Token.kt
@@ -3,6 +3,7 @@ package com.stripe.android.model
 import androidx.annotation.StringDef
 import com.stripe.android.model.Token.TokenType
 import java.util.Date
+import kotlinx.android.parcel.Parcelize
 import org.json.JSONException
 import org.json.JSONObject
 
@@ -11,7 +12,8 @@ import org.json.JSONObject
  * account details or personally identifiable information (PII), directly from your customers in a
  * secure manner. A Token representing this information is returned to you to use.
  */
-data class Token private constructor(
+@Parcelize
+data class Token internal constructor(
 
     /**
      * @return the Token id
diff --git a/stripe/src/main/java/com/stripe/android/model/WeChat.kt b/stripe/src/main/java/com/stripe/android/model/WeChat.kt
index e9a131b9749..865685590c3 100644
--- a/stripe/src/main/java/com/stripe/android/model/WeChat.kt
+++ b/stripe/src/main/java/com/stripe/android/model/WeChat.kt
@@ -1,10 +1,13 @@
 package com.stripe.android.model
 
+import android.os.Parcelable
+import kotlinx.android.parcel.Parcelize
 import org.json.JSONObject
 
 /**
  * [WeChat Pay Payments with Sources](https://stripe.com/docs/sources/wechat-pay)
  */
+@Parcelize
 data class WeChat internal constructor(
     val statementDescriptor: String?,
     val appId: String?,
@@ -15,7 +18,7 @@ data class WeChat internal constructor(
     val sign: String?,
     val timestamp: String?,
     val qrCodeUrl: String? = null
-) : StripeModel() {
+) : StripeModel(), Parcelable {
     internal companion object {
         private const val FIELD_APPID = "android_appId"
         private const val FIELD_NONCE = "android_nonceStr"
diff --git a/stripe/src/test/java/com/stripe/android/model/StripeSourceTypeModelTest.kt b/stripe/src/test/java/com/stripe/android/model/StripeSourceTypeModelTest.kt
deleted file mode 100644
index 756c7c2e9f0..00000000000
--- a/stripe/src/test/java/com/stripe/android/model/StripeSourceTypeModelTest.kt
+++ /dev/null
@@ -1,55 +0,0 @@
-package com.stripe.android.model
-
-import com.stripe.android.model.StripeSourceTypeModel.Companion.jsonObjectToMapWithoutKeys
-import kotlin.test.Test
-import kotlin.test.assertEquals
-import kotlin.test.assertFalse
-import kotlin.test.assertNull
-import org.json.JSONObject
-
-/**
- * Test class for [StripeSourceTypeModel].
- */
-class StripeSourceTypeModelTest {
-
-    @Test
-    fun jsonObjectToMapWithoutKeys_whenHasKeyInput_returnsMapOmittingKeys() {
-        val jsonObject = JSONObject()
-            .put("a_key", "a_value")
-            .put("b_key", "b_value")
-            .put("c_key", "c_value")
-            .put("d_key", "d_value")
-
-        val omitKeys = setOf("a_key", "d_key")
-
-        val resultMap = jsonObjectToMapWithoutKeys(jsonObject, omitKeys)!!
-        assertEquals(2, resultMap.size)
-        assertEquals("b_value", resultMap["b_key"])
-        assertEquals("c_value", resultMap["c_key"])
-        assertFalse(resultMap.containsKey("a_key"))
-        assertFalse(resultMap.containsKey("d_key"))
-    }
-
-    @Test
-    fun jsonObjectToMapWithoutKeys_whenAllKeysGiven_returnsNull() {
-        val jsonObject = JSONObject()
-            .put("a_key", "a_value")
-            .put("b_key", "b_value")
-
-        val omitKeys = setOf("a_key", "b_key")
-        val resultMap = jsonObjectToMapWithoutKeys(jsonObject, omitKeys)
-        assertNull(resultMap)
-    }
-
-    @Test
-    fun jsonObjectToMapWithoutKeys_whenOtherKeysGiven_returnsFullMap() {
-        val jsonObject = JSONObject()
-            .put("a_key", "a_value")
-            .put("b_key", "b_value")
-
-        val omitKeys = setOf("c_key", "d_key")
-        val resultMap = jsonObjectToMapWithoutKeys(jsonObject, omitKeys)!!
-        assertEquals("a_value", resultMap["a_key"])
-        assertEquals("b_value", resultMap["b_key"])
-    }
-}