diff --git a/lib/server.js b/lib/server.js
index 96153dc..6a7c4fe 100644
--- a/lib/server.js
+++ b/lib/server.js
@@ -614,8 +614,8 @@ WalletService.prototype.joinWallet = function(opts, cb) {
       }
 
       if (_.find(wallet.copayers, {
-        xPubKey: opts.xPubKey
-      })) return cb(Errors.COPAYER_IN_WALLET);
+          xPubKey: opts.xPubKey
+        })) return cb(Errors.COPAYER_IN_WALLET);
 
       if (wallet.copayers.length == wallet.n) return cb(Errors.WALLET_FULL);
 
@@ -708,8 +708,8 @@ WalletService.prototype._canCreateAddress = function(ignoreMaxGap, cb) {
       isChange: true
     }), Defaults.MAX_MAIN_ADDRESS_GAP);
     if (latestAddresses.length < Defaults.MAX_MAIN_ADDRESS_GAP || _.any(latestAddresses, {
-      hasActivity: true
-    })) return cb(null, true);
+        hasActivity: true
+      })) return cb(null, true);
 
     var bc = self._getBlockchainExplorer(latestAddresses[0].network);
     var activityFound = false;
@@ -945,8 +945,13 @@ WalletService.prototype._totalizeUtxos = function(utxos) {
 WalletService.prototype._computeBytesToSendMax = function(utxos, cb) {
   var self = this;
 
+  var size = {
+    all: 0,
+    confirmed: 0
+  };
+
   var unlockedUtxos = _.reject(utxos, 'locked');
-  if (_.isEmpty(unlockedUtxos)) return cb(null, 0);
+  if (_.isEmpty(unlockedUtxos)) return cb(null, size);
 
   self.getWallet({}, function(err, wallet) {
     if (err) return cb(err);
@@ -956,9 +961,13 @@ WalletService.prototype._computeBytesToSendMax = function(utxos, cb) {
       requiredSignatures: wallet.m,
       walletN: wallet.n,
     });
+
+
     txp.inputs = unlockedUtxos;
+    size.all = txp.getEstimatedSize();
 
-    var size = txp.getEstimatedSize();
+    txp.inputs = _.filter(unlockedUtxos, 'confirmations');
+    size.confirmed = txp.getEstimatedSize();
 
     return cb(null, size);
   });
@@ -992,7 +1001,8 @@ WalletService.prototype._getBalanceFromAddresses = function(addresses, cb) {
       if (err) {
         log.error('Could not compute size of send max transaction', err);
       }
-      balance.totalBytesToSendMax = _.isNumber(size) ? size : null;
+      balance.totalBytesToSendMax = _.isNumber(size.all) ? size.all : null;
+      balance.totalBytesToSendConfirmedMax = _.isNumber(size.confirmed) ? size.confirmed : null;
       return cb(null, balance);
     });
   });
diff --git a/test/integration/server.js b/test/integration/server.js
index 524cd09..29c6b52 100644
--- a/test/integration/server.js
+++ b/test/integration/server.js
@@ -1417,6 +1417,7 @@ describe('Wallet service', function() {
           balance.lockedAmount.should.equal(0);
           balance.availableAmount.should.equal(helpers.toSatoshi(6));
           balance.totalBytesToSendMax.should.equal(578);
+          balance.totalBytesToSendConfirmedMax.should.equal(418);
 
           balance.totalConfirmedAmount.should.equal(helpers.toSatoshi(4));
           balance.lockedConfirmedAmount.should.equal(0);
@@ -2563,6 +2564,7 @@ describe('Wallet service', function() {
             balance.lockedAmount.should.equal(0);
             balance.availableAmount.should.equal(helpers.toSatoshi(9));
             balance.totalBytesToSendMax.should.equal(2896);
+            balance.totalBytesToSendConfirmedMax.should.equal(2896);
             var fee = parseInt((balance.totalBytesToSendMax * 10000 / 1000).toFixed(0));
             var max = balance.availableAmount - fee;
             var txOpts = helpers.createSimpleProposalOpts('18PzpUFkFZE8zKWUPvfykkTxmB9oMR8qP7', max / 1e8, TestData.copayers[0].privKey_1H_0);
@@ -2594,6 +2596,7 @@ describe('Wallet service', function() {
               balance.lockedAmount.should.equal(helpers.toSatoshi(4));
               balance.availableAmount.should.equal(helpers.toSatoshi(5));
               balance.totalBytesToSendMax.should.equal(1653);
+              balance.totalBytesToSendConfirmedMax.should.equal(1653);
               var fee = parseInt((balance.totalBytesToSendMax * 2000 / 1000).toFixed(0));
               var max = balance.availableAmount - fee;
               var txOpts = helpers.createSimpleProposalOpts('18PzpUFkFZE8zKWUPvfykkTxmB9oMR8qP7', max / 1e8, TestData.copayers[0].privKey_1H_0, {
@@ -2616,6 +2619,38 @@ describe('Wallet service', function() {
         });
       });
 
+      it('should be able to send max confirmed', function(done) {
+        helpers.stubUtxos(server, wallet, [1, 1, 'u1', 'u1'], function() {
+          server.getBalance({}, function(err, balance) {
+            should.not.exist(err);
+            balance.totalAmount.should.equal(helpers.toSatoshi(4));
+            balance.totalConfirmedAmount.should.equal(helpers.toSatoshi(2));
+            balance.lockedAmount.should.equal(0);
+            balance.availableAmount.should.equal(helpers.toSatoshi(4));
+            balance.availableConfirmedAmount.should.equal(helpers.toSatoshi(2));
+            balance.totalBytesToSendMax.should.equal(1342);
+            balance.totalBytesToSendConfirmedMax.should.equal(720);
+            var fee = parseInt((balance.totalBytesToSendConfirmedMax * 10000 / 1000).toFixed(0));
+            var max = balance.availableConfirmedAmount - fee;
+            var txOpts = helpers.createSimpleProposalOpts('18PzpUFkFZE8zKWUPvfykkTxmB9oMR8qP7', max / 1e8, TestData.copayers[0].privKey_1H_0);
+            server.createTxLegacy(txOpts, function(err, tx) {
+              should.not.exist(err);
+              should.exist(tx);
+              tx.amount.should.equal(max);
+              var estimatedFee = 720 * 10000 / 1000;
+              tx.fee.should.be.within(0.9 * estimatedFee, 1.1 * estimatedFee);
+              server.getBalance({}, function(err, balance) {
+                should.not.exist(err);
+                balance.lockedAmount.should.equal(helpers.toSatoshi(2));
+                balance.availableConfirmedAmount.should.equal(0);
+                balance.availableAmount.should.equal(helpers.toSatoshi(2));
+                done();
+              });
+            });
+          });
+        });
+      });
+
       it('should not use UTXO provided in utxosToExclude option', function(done) {
         helpers.stubUtxos(server, wallet, [1, 2, 3], function(utxos) {
           var txOpts = helpers.createSimpleProposalOpts('18PzpUFkFZE8zKWUPvfykkTxmB9oMR8qP7', 4.5, TestData.copayers[0].privKey_1H_0);