diff --git a/src/main/java/co/omise/models/AuthorizationType.java b/src/main/java/co/omise/models/AuthorizationType.java
new file mode 100644
index 00000000..5ed5177e
--- /dev/null
+++ b/src/main/java/co/omise/models/AuthorizationType.java
@@ -0,0 +1,10 @@
+package co.omise.models;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+public enum AuthorizationType {
+    @JsonProperty("pre_auth")
+    PreAuth,
+    @JsonProperty("final_auth")
+    FinalAuth;
+}
diff --git a/src/main/java/co/omise/models/Charge.java b/src/main/java/co/omise/models/Charge.java
index 9b5920ee..4e24f7ba 100644
--- a/src/main/java/co/omise/models/Charge.java
+++ b/src/main/java/co/omise/models/Charge.java
@@ -1,7 +1,6 @@
 package co.omise.models;
 
 import co.omise.Endpoint;
-import co.omise.models.schedules.ChargeSchedule;
 import co.omise.models.schedules.Schedule;
 import co.omise.requests.RequestBuilder;
 import co.omise.requests.ResponseType;
@@ -84,6 +83,8 @@ public class Charge extends Model {
     private boolean voided;
     @JsonProperty("zero_interest_installments")
     private boolean zeroInterestInstallments;
+    @JsonProperty("authorization_type")
+    private AuthorizationType authorizationType;
 
     public long getAmount() {
         return this.amount;
@@ -461,6 +462,14 @@ public void setTransactionFees(TransactionFee transactionFees) {
         this.transactionFees = transactionFees;
     }
 
+    public AuthorizationType getAuthorizationType() {
+        return authorizationType;
+    }
+
+    public void setAuthorizationType(AuthorizationType authorizationType) {
+        this.authorizationType = authorizationType;
+    }
+
     public static class ListRequestBuilder extends RequestBuilder<ScopedList<Charge>> {
         private ScopedList.Options options;
 
@@ -521,6 +530,8 @@ public static class CreateRequestBuilder extends RequestBuilder<Charge> {
         private String returnUri;
         @JsonProperty
         private String source;
+        @JsonProperty("authorization_type")
+        private AuthorizationType authorizationType;
 
         @Override
         protected String method() {
@@ -607,6 +618,11 @@ public CreateRequestBuilder zeroInterestInstallments(boolean zeroInterestInstall
             return this;
         }
 
+        public CreateRequestBuilder authorizationType(AuthorizationType authorizationType) {
+            this.authorizationType = authorizationType;
+            return this;
+        }
+
         @Override
         protected RequestBody payload() throws IOException {
             return serialize();
@@ -765,10 +781,19 @@ public UpdateRequestBuilder metadata(String key, Object value) {
 
     public static class CaptureRequestBuilder extends RequestBuilder<Charge> {
         private String chargeId;
+
+        @JsonProperty("capture_amount")
+        private long captureAmount;
+
         public CaptureRequestBuilder(String chargeId) {
             this.chargeId = chargeId;
         }
 
+        public CaptureRequestBuilder captureAmount(long captureAmount) {
+            this.captureAmount = captureAmount;
+            return this;
+        }
+
         @Override
         protected String method() {
             return POST;
@@ -783,6 +808,11 @@ protected HttpUrl path() {
         protected ResponseType<Charge> type() {
             return new ResponseType<>(Charge.class);
         }
+
+        @Override
+        protected RequestBody payload() throws IOException {
+            return serialize();
+        }
     }
 
     public static class ExpireRequestBuilder extends RequestBuilder<Charge> {
diff --git a/src/test/java/co/omise/live/LiveChargeRequestTest.java b/src/test/java/co/omise/live/LiveChargeRequestTest.java
index 21f59cfd..42eba0b6 100644
--- a/src/test/java/co/omise/live/LiveChargeRequestTest.java
+++ b/src/test/java/co/omise/live/LiveChargeRequestTest.java
@@ -287,7 +287,7 @@ public void testLiveChargeCapture() throws IOException, OmiseException {
                         .name("Omise Co., Ltd. - testLiveCharge")
                         .number("4242424242424242")
                         .securityCode("123")
-                        .expiration(10, 2020))
+                        .expiration(10, 2030))
                 .build();
 
         Token token = client.sendRequest(tokenRequest);
@@ -317,6 +317,47 @@ public void testLiveChargeCapture() throws IOException, OmiseException {
         assertTrue(capturedCharge.isPaid());
     }
 
+
+    @Test
+    @Ignore("only hit the network when we need to.")
+    public void testLiveChargeSinglePartialCapture() throws IOException, OmiseException {
+        Request<Token> tokenRequest = new Token.CreateRequestBuilder()
+                .card(new Card.Create()
+                        .name("Omise Co., Ltd. - testLiveCharge")
+                        .number("4242424242424242")
+                        .securityCode("123")
+                        .expiration(10, 2030))
+                .build();
+
+        Token token = client.sendRequest(tokenRequest);
+
+        Request<Charge> createChargeRequest =
+                new Charge.CreateRequestBuilder()
+                        .amount(100000)
+                        .currency("thb")
+                        .description("omise-java test")
+                        .card(token.getId())
+                        .capture(false)
+                        .authorizationType(AuthorizationType.PreAuth)
+                        .build();
+        Charge unCapturedCharge = client.sendRequest(createChargeRequest);
+
+        System.out.println("created charge: " + unCapturedCharge.getId());
+
+        assertNotNull(unCapturedCharge.getId());
+        assertFalse(unCapturedCharge.isCapture());
+        assertEquals(AuthorizationType.PreAuth, unCapturedCharge.getAuthorizationType());
+
+        Request<Charge> captureChargeRequest =
+                new Charge.CaptureRequestBuilder(unCapturedCharge.getId()).captureAmount(50000).build();
+
+        Charge capturedCharge = client.sendRequest(captureChargeRequest);
+
+        assertNotNull(capturedCharge);
+        assertEquals(unCapturedCharge.getId(), capturedCharge.getId());
+        assertTrue(capturedCharge.isPaid());
+    }
+
     @Test
     @Ignore("only hit the network when we need to.")
     public void testLiveChargeReverse() throws IOException, OmiseException {
diff --git a/src/test/java/co/omise/requests/ChargeRequestTest.java b/src/test/java/co/omise/requests/ChargeRequestTest.java
index 7946b5e5..9e42c0e7 100644
--- a/src/test/java/co/omise/requests/ChargeRequestTest.java
+++ b/src/test/java/co/omise/requests/ChargeRequestTest.java
@@ -1,5 +1,6 @@
 package co.omise.requests;
 
+import co.omise.models.AuthorizationType;
 import co.omise.models.Barcode;
 import co.omise.models.Charge;
 import co.omise.models.OmiseException;
@@ -65,6 +66,24 @@ public void testCreateChargeFromSource() throws IOException, OmiseException {
         assertEquals(100000L, charge.getAmount());
     }
 
+    @Test
+    public void testCreatePartialCaptureCharge() throws IOException, OmiseException {
+        Request<Charge> createChargeRequest =
+                new Charge.CreateRequestBuilder()
+                        .amount(100000)
+                        .currency("thb")
+                        .capture(false)
+                        .authorizationType(AuthorizationType.PreAuth)
+                        .returnUri("http://example.com/orders/345678/complete")
+                        .build();
+
+        Charge charge = getTestRequester().sendRequest(createChargeRequest);
+
+        assertRequested("POST", "/charges", 200);
+        assertRequestBody("{\"amount\":100000,\"capture\":false,\"card\":null,\"currency\":\"thb\",\"customer\":null,\"description\":null,\"ip\":null,\"metadata\":null,\"reference\":null,\"source\":null,\"zero_interest_installments\":false,\"expires_at\":null,\"platform_fee\":null,\"return_uri\":\"http://example.com/orders/345678/complete\",\"authorization_type\":\"pre_auth\"}");
+        assertNotNull(charge);
+    }
+
     @Test
     public void testUpdate() throws IOException, OmiseException {
         Request<Charge> updateChargeRequest =
@@ -92,6 +111,22 @@ public void testCapture() throws IOException, OmiseException {
         assertTrue(charge.isPaid());
     }
 
+    @Test
+    public void testPartialCapture() throws IOException, OmiseException {
+        Request<Charge> captureChargeRequest =
+                new Charge.CaptureRequestBuilder(CHARGE_ID)
+                        .captureAmount(100000)
+                        .build();
+
+        Charge charge = getTestRequester().sendRequest(captureChargeRequest);
+
+        assertRequested("POST", "/charges/" + CHARGE_ID + "/capture", 200);
+        assertRequestBody("{\"capture_amount\":100000}");
+        assertEquals(CHARGE_ID, charge.getId());
+        assertFalse(charge.isCapture());
+        assertTrue(charge.isPaid());
+    }
+
     @Test
     public void testReverse() throws IOException, OmiseException {
         Request<Charge> reverseChargeRequest =
diff --git a/src/test/java/co/omise/requests/RequestTest.java b/src/test/java/co/omise/requests/RequestTest.java
index bb985a6a..84a32dde 100644
--- a/src/test/java/co/omise/requests/RequestTest.java
+++ b/src/test/java/co/omise/requests/RequestTest.java
@@ -46,6 +46,7 @@ protected void assertRequestBody(String expectedRequestBody) {
             assertEquals(expectedRequestBody, actualRequestBody);
         } catch (final IOException e) {
             e.printStackTrace();
+            fail("Error occurred.");
         }
     }
 
diff --git a/src/test/resources/testdata/objects/charge_object.json b/src/test/resources/testdata/objects/charge_object.json
index ffe02707..648ffe18 100644
--- a/src/test/resources/testdata/objects/charge_object.json
+++ b/src/test/resources/testdata/objects/charge_object.json
@@ -5,6 +5,7 @@
   "location": "/charges/chrg_test_5086xlsx4lghk9bpb75",
   "amount": 100000,
   "currency": "thb",
+  "authorization_type": "pre_auth",
   "description": null,
   "capture": true,
   "authorized": true,