diff --git a/src/transaction.js b/src/transaction.js
index 137b175..4d5bd91 100644
--- a/src/transaction.js
+++ b/src/transaction.js
@@ -84,7 +84,7 @@ Transaction.prototype.addInput = function (tx, outIndex) {
  * Can be called with:
  *
  * i) An existing TransactionOut object
- * ii) An address object or an address and a value
+ * ii) An address object or a string address, and a value
  * iii) An address:value string
  * iv) Either ii), iii) with an optional network argument
  *
@@ -96,23 +96,24 @@ Transaction.prototype.addOutput = function (address, value, network) {
     return
   }
 
-  if (arguments[0].indexOf(':') >= 0) {
-    network = value
+  if (typeof address === 'string') {
+    if (arguments[0].indexOf(':') >= 0) {
+      var args = arguments[0].split(':')
+      address = args[0]
+      value = parseInt(args[1])
 
-    var args = arguments[0].split(':')
-    address = args[0]
-    value = parseInt(args[1])
+      network = arguments[1]
+    }
+
+    address = Address.fromBase58Check(address)
   }
 
   network = network || Network.bitcoin
 
-  if (typeof address === 'string') {
-    address = Address.fromBase58Check(address)
-  }
-
   this.outs.push(new TransactionOut({
     value: value,
-    script: Script.createOutputScript(address, network)
+    script: Script.createOutputScript(address, network),
+    network: network
   }))
 }
 
@@ -485,7 +486,10 @@ var TransactionOut = function (data) {
     : data.address                     ? Script.createOutputScript(data.address)
     : new Script()
 
-  if (this.script.buffer.length > 0) this.address = this.script.getToAddress();
+  var network = data.network || Network.bitcoin
+  if (this.script.buffer.length > 0) {
+    this.address = this.script.getToAddress(network)
+  }
 
   this.value =
       Array.isArray(data.value)        ? convert.bytesToNum(data.value)
diff --git a/test/transaction.js b/test/transaction.js
index a9e5ef7..e672411 100644
--- a/test/transaction.js
+++ b/test/transaction.js
@@ -154,6 +154,11 @@ describe('Transaction', function() {
         verifyTransactionOut()
       })
 
+      it('allows an Address object and value to be passed in', function(){
+        tx.addOutput(Address.fromBase58Check('15mMHKL96tWAUtqF3tbVf99Z8arcmnJrr3'), 40000)
+        verifyTransactionOut()
+      })
+
       it('allows a string in the form of address:index to be passed in', function(){
         tx.addOutput("15mMHKL96tWAUtqF3tbVf99Z8arcmnJrr3:40000")
         verifyTransactionOut()
@@ -168,6 +173,15 @@ describe('Transaction', function() {
         verifyTransactionOut()
       })
 
+      it('supports alternative networks', function(){
+        var addr = 'mkHJaNR7uuwRG1JrmTZsV4MszaTKjCBvCR'
+
+        tx.addOutput(addr, 40000, network.testnet)
+        verifyTransactionOut()
+
+        assert.equal(tx.outs[0].address.toString(), addr)
+      })
+
       function verifyTransactionOut(){
         assert.equal(tx.outs.length, 1)
 
diff --git a/test/wallet.js b/test/wallet.js
index a5b31ec..dd4d2ed 100644
--- a/test/wallet.js
+++ b/test/wallet.js
@@ -141,10 +141,14 @@ describe('Wallet', function() {
       wallet.generateAddress()
       wallet.generateAddress()
 
-      assertEqual(wallet.getPrivateKeyForAddress("n2fiWrHqD6GM5GiEqkbWAc6aaZQp3ba93X"),
-                  wallet.getExternalAccount().derive(1).priv)
-                  assertEqual(wallet.getPrivateKeyForAddress("mnXiDR4MKsFxcKJEZjx4353oXvo55iuptn"),
-                              wallet.getInternalAccount().derive(0).priv)
+      assertEqual(
+        wallet.getPrivateKeyForAddress("n2fiWrHqD6GM5GiEqkbWAc6aaZQp3ba93X"),
+        wallet.getExternalAccount().derive(1).priv
+      )
+      assertEqual(
+        wallet.getPrivateKeyForAddress("mnXiDR4MKsFxcKJEZjx4353oXvo55iuptn"),
+        wallet.getInternalAccount().derive(0).priv
+      )
     })
 
     it('raises an error when address is not found', function(){
@@ -463,7 +467,10 @@ describe('Wallet', function() {
         var to = 'mt7MyTVVEWnbwpF5hBn6fgnJcv95Syk2ue'
         var wallet = new Wallet(seed, {network: 'testnet'})
         var tx = wallet.createTx(to, value)
+
         assert.equal(tx.outs.length, 1)
+        assert.equal(tx.outs[0].address.toString(), to)
+        assert.equal(tx.outs[0].value, value)
       })
     })
 
@@ -471,17 +478,27 @@ describe('Wallet', function() {
       it('should allow custom changeAddress', function(){
         var wallet = new Wallet(seed, {network: 'testnet'})
         var address = wallet.generateAddress()
-        utxo = {
-          "hash":"b3c5fde139dc0a3bba2729bfd5b9e16f5894131dc3dc46a91151da3053e7e3a5",
-          "outputIndex": 0,
-          "address" : address,
-          "value": 100000
-        }
-        var to = "mt7MyTVVEWnbwpF5hBn6fgnJcv95Syk2ue"
+
+        wallet.setUnspentOutputs([{
+          hash: fakeTxHash(0),
+          outputIndex: 0,
+          address: address,
+          value: value
+        }])
+        assert.equal(wallet.getBalance(), value)
+
         var changeAddress = 'mfrFjnKZUvTcvdAK2fUX5D8v1Epu5H8JCk'
-        wallet.setUnspentOutputs([utxo])
-        var tx = wallet.createTx(to, 10000, 1000, changeAddress)
+        var to = 'mt7MyTVVEWnbwpF5hBn6fgnJcv95Syk2ue'
+        var toValue = value / 2
+        var fee = 1e3
+
+        var tx = wallet.createTx(to, toValue, fee, changeAddress)
         assert.equal(tx.outs.length, 2)
+        assert.equal(tx.outs[0].address.toString(), to)
+        assert.equal(tx.outs[0].value, toValue)
+
+        assert.equal(tx.outs[1].address.toString(), changeAddress)
+        assert.equal(tx.outs[1].value, value - (toValue + fee))
       })
     })