diff --git a/src/Order.hs b/src/Order.hs
index 0a43ff9..4c60669 100644
--- a/src/Order.hs
+++ b/src/Order.hs
@@ -30,10 +30,13 @@ data ZGoOrder = ZGoOrder
   , qexternalInvoice :: T.Text
   , qshortCode :: T.Text
   , qtoken :: T.Text
+  , qtax :: Double
+  , qvat :: Double
+  , qtip :: Double
   } deriving (Eq, Show, Generic)
 
 instance ToJSON ZGoOrder where
-  toJSON (ZGoOrder i a s ts c cur p t tZ l paid eI sC tk) =
+  toJSON (ZGoOrder i a s ts c cur p t tZ l paid eI sC tk qT qV tip) =
     case i of
       Just oid ->
         object
@@ -51,6 +54,9 @@ instance ToJSON ZGoOrder where
           , "externalInvoice" .= eI
           , "shortCode" .= sC
           , "token" .= tk
+          , "taxAmount" .= qT
+          , "vatAmount" .= qV
+          , "tipAmount" .= tip
           ]
       Nothing ->
         object
@@ -68,6 +74,9 @@ instance ToJSON ZGoOrder where
           , "externalInvoice" .= eI
           , "shortCode" .= sC
           , "token" .= tk
+          , "taxAmount" .= qT
+          , "vatAmount" .= qV
+          , "tipAmount" .= tip
           ]
 
 instance FromJSON ZGoOrder where
@@ -87,6 +96,9 @@ instance FromJSON ZGoOrder where
       eI <- obj .: "externalInvoice"
       sC <- obj .: "shortCode"
       tk <- obj .: "token"
+      qT <- obj .: "taxAmount"
+      qV <- obj .: "vatAmount"
+      tip <- obj .: "tipAmount"
       pure $
         ZGoOrder
           (if not (null i)
@@ -105,9 +117,12 @@ instance FromJSON ZGoOrder where
           eI
           sC
           tk
+          qT
+          qV
+          tip
 
 instance Val ZGoOrder where
-  val (ZGoOrder i a s ts c cur p t tZ l pd eI sC tk) =
+  val (ZGoOrder i a s ts c cur p t tZ l pd eI sC tk qT qV tip) =
     if isJust i
       then Doc
              [ "_id" =: i
@@ -124,6 +139,9 @@ instance Val ZGoOrder where
              , "externalInvoice" =: eI
              , "shortCode" =: sC
              , "token" =: tk
+             , "taxAmount" =: qT
+             , "vatAmount" =: qV
+             , "tipAmount" =: tip
              ]
       else Doc
              [ "address" =: a
@@ -139,6 +157,9 @@ instance Val ZGoOrder where
              , "externalInvoice" =: eI
              , "shortCode" =: sC
              , "token" =: tk
+             , "taxAmount" =: qT
+             , "vatAmount" =: qV
+             , "tipAmount" =: tip
              ]
   cast' (Doc d) = do
     i <- B.lookup "_id" d
@@ -155,7 +176,10 @@ instance Val ZGoOrder where
     eI <- B.lookup "externalInvoice" d
     sC <- B.lookup "shortCode" d
     tk <- B.lookup "token" d
-    Just (ZGoOrder i a s ts c cur p t tZ l pd eI sC tk)
+    qT <- B.lookup "taxAmount" d
+    qV <- B.lookup "vatAmount" d
+    tip <- B.lookup "tipAmount" d
+    Just (ZGoOrder i a s ts c cur p t tZ l pd eI sC tk qT qV tip)
   cast' _ = Nothing
 
 -- Type to represent an order line item
@@ -237,15 +261,18 @@ updateOrderTotals o =
     (qexternalInvoice o)
     (qshortCode o)
     (qtoken o)
+    (qtax o)
+    (qvat o)
+    (qtip o)
   where
     newTotal :: ZGoOrder -> Double
-    newTotal x = foldr tallyItems 0 (qlines x)
+    newTotal x = foldr tallyItems 0 (qlines x) + qtax o + qvat o + qtip o
     tallyItems :: LineItem -> Double -> Double
     tallyItems y z = (lqty y * lcost y) + z
 
 setOrderToken :: T.Text -> ZGoOrder -> ZGoOrder
-setOrderToken token (ZGoOrder i a s ts c cur p t tZ l pd eI sC tk) =
-  ZGoOrder i a s ts c cur p t tZ l pd eI sC token
+setOrderToken token (ZGoOrder i a s ts c cur p t tZ l pd eI sC tk qT qV tip) =
+  ZGoOrder i a s ts c cur p t tZ l pd eI sC token qT qV tip
 
 findOrder :: T.Text -> Action IO (Maybe Document)
 findOrder s = findOne (select ["session" =: s, "closed" =: False] "orders")
diff --git a/src/ZGoBackend.hs b/src/ZGoBackend.hs
index c0f7ce0..68c883b 100644
--- a/src/ZGoBackend.hs
+++ b/src/ZGoBackend.hs
@@ -761,6 +761,9 @@ routes pipe config = do
                                                              (xr_shortCode
                                                                 invReq)
                                                              (T.pack tk)
+                                                             0
+                                                             0
+                                                             0
                                                      _ <-
                                                        liftAndCatchIO $
                                                        run $
@@ -1040,6 +1043,9 @@ routes pipe config = do
                                    [T.pack sUrl, "-", ordId, "-", orderKey])
                                 ""
                                 (T.pack tk)
+                                0
+                                0
+                                0
                         newId <- liftAndCatchIO $ run (insertWooOrder newOrder)
                         status ok200
                         Web.Scotty.json
diff --git a/test/Spec.hs b/test/Spec.hs
index 094fb54..35d60cf 100644
--- a/test/Spec.hs
+++ b/test/Spec.hs
@@ -325,6 +325,9 @@ main = do
                     ""
                     ""
                     "testToken4321"
+                    0
+                    0
+                    0
             req <-
               testPostJson "/api/order" $
               A.object ["payload" A..= A.toJSON testOrder]
@@ -352,6 +355,9 @@ main = do
                     ""
                     ""
                     "testToken4321"
+                    0
+                    0
+                    0
             req <-
               testPostJson "/api/order" $
               A.object ["payload" A..= A.toJSON testOrder]
@@ -379,6 +385,9 @@ main = do
                     ""
                     ""
                     "testToken4321"
+                    0
+                    0
+                    0
             req <-
               testPostJson "/api/order" $
               A.object ["payload" A..= A.toJSON testOrder]
@@ -851,6 +860,9 @@ main = do
                     ""
                     ""
                     "testToken1234"
+                    0
+                    0
+                    0
             let ordTest = val myOrder
             case ordTest of
               Doc oT -> access p master "test" (insert_ "orders" oT)
@@ -1368,6 +1380,9 @@ startAPI config = do
           ""
           ""
           "testToken1234"
+          0
+          0
+          0
   let ordTest = val myOrder
   case ordTest of
     Doc oT -> access pipe master "test" (insert_ "orders" oT)
@@ -1433,7 +1448,10 @@ instance Arbitrary ZGoOrder where
     pd <- arbitrary
     eI <- arbitrary
     sc <- arbitrary
-    ZGoOrder i a s ts c cur p t tZ l pd eI sc <$> arbitrary
+    tk <- arbitrary
+    qT <- arbitrary
+    qV <- arbitrary
+    ZGoOrder i a s ts c cur p t tZ l pd eI sc tk qT qV <$> arbitrary
 
 instance Arbitrary LineItem where
   arbitrary = do