diff --git a/lib/model/txproposal.js b/lib/model/txproposal.js
index a286927..1ae7538 100644
--- a/lib/model/txproposal.js
+++ b/lib/model/txproposal.js
@@ -44,7 +44,7 @@ TxProposal.create = function(opts) {
   x.requiredRejections = Math.min(x.walletM, x.walletN - x.walletM + 1),
   x.status = 'temporary';
   x.actions = [];
-  x.fee = opts.fee;
+  x.fee = null;
   x.feePerKb = opts.feePerKb;
   x.feeLevel = opts.feeLevel;
   x.excludeUnconfirmedUtxos = opts.excludeUnconfirmedUtxos;
diff --git a/lib/server.js b/lib/server.js
index f651bba..b72998e 100644
--- a/lib/server.js
+++ b/lib/server.js
@@ -1223,9 +1223,7 @@ WalletService.prototype._checkTxAndEstimateFee = function(txp) {
     serializationOpts.disableLargeFees = true;
   }
 
-  if (_.isNumber(txp.feePerKb)) {
-    txp.estimateFee();
-  }
+  txp.estimateFee();
 
   try {
     var bitcoreTx = txp.getBitcoreTx();
@@ -1544,7 +1542,6 @@ WalletService.prototype.createTxLegacy = function(opts, cb) {
  * @param {string} opts.outputs[].message - A message to attach to this output.
  * @param {string} opts.message - A message to attach to this transaction.
  * @param {Array} opts.inputs - Optional. Inputs for this TX
- * @param {string} opts.fee - Optional. Use an alternative fee for this TX (mutually exclusive with feePerKb)
  * @param {string} opts.feePerKb - Optional. Use an alternative fee per KB for this TX (mutually exclusive with fee)
  * @param {string} opts.feeLevel - Optional. Specify the fee level used to compute feePerKb for this txp.
  * @param {string} opts.payProUrl - Optional. Paypro URL for peers to verify TX
@@ -1558,18 +1555,9 @@ WalletService.prototype.createTx = function(opts, cb) {
   if (!Utils.checkRequired(opts, ['outputs']))
     return cb(new ClientError('Required argument missing'));
 
-  if (_.isNumber(opts.fee)) {
-    if (_.isNumber(opts.feePerKb))
-      return cb(new ClientError('Cannot sepcify both fee and feePerKb arguments'));
-    opts.feePerKb = null;
-    if (opts.fee < Defaults.MIN_TX_FEE || opts.fee > Defaults.MAX_TX_FEE)
-      return cb(new ClientError('Invalid fee'));
-  } else {
-    opts.fee = null;
-    opts.feePerKb = opts.feePerKb || Defaults.DEFAULT_FEE_PER_KB;
-    if (opts.feePerKb < Defaults.MIN_FEE_PER_KB || opts.feePerKb > Defaults.MAX_FEE_PER_KB)
-      return cb(new ClientError('Invalid fee per KB'));
-  }
+  opts.feePerKb = opts.feePerKb || Defaults.DEFAULT_FEE_PER_KB;
+  if (opts.feePerKb < Defaults.MIN_FEE_PER_KB || opts.feePerKb > Defaults.MAX_FEE_PER_KB)
+    return cb(new ClientError('Invalid fee per KB'));
 
   self._runLocked(cb, function(cb) {
     self.getWallet({}, function(err, wallet) {
@@ -1594,7 +1582,6 @@ WalletService.prototype.createTx = function(opts, cb) {
           outputs: opts.outputs,
           message: opts.message,
           changeAddress: wallet.createAddress(true),
-          fee: opts.fee,
           feePerKb: opts.feePerKb,
           feeLevel: opts.feeLevel,
           payProUrl: opts.payProUrl,
diff --git a/test/integration/server.js b/test/integration/server.js
index 58cd249..5bca205 100644
--- a/test/integration/server.js
+++ b/test/integration/server.js
@@ -2742,61 +2742,6 @@ describe('Wallet service', function() {
         });
       });
 
-      it('should be able to specify the final fee', function(done) {
-        helpers.stubUtxos(server, wallet, [1, 2], function() {
-          var txOpts = {
-            outputs: [{
-              toAddress: '18PzpUFkFZE8zKWUPvfykkTxmB9oMR8qP7',
-              amount: 0.8 * 1e8,
-            }],
-            fee: 123400,
-          };
-          server.createTx(txOpts, function(err, tx) {
-            should.not.exist(err);
-            should.exist(tx);
-            tx.fee.should.equal(123400);
-            var t = tx.getBitcoreTx();
-            t.getFee().should.equal(123400);
-            done();
-          });
-        });
-      });
-
-      it('should not be able to specify both final fee & fee per kb', function(done) {
-        helpers.stubUtxos(server, wallet, [1, 2], function() {
-          var txOpts = {
-            outputs: [{
-              toAddress: '18PzpUFkFZE8zKWUPvfykkTxmB9oMR8qP7',
-              amount: 0.8 * 1e8,
-            }],
-            fee: 123400,
-            feePerKb: 123400,
-          };
-          server.createTx(txOpts, function(err, tx) {
-            should.exist(err);
-            err.message.should.contain('fee');
-            done();
-          });
-        });
-      });
-
-      it('should check explicit fee to be below max', function(done) {
-        helpers.stubUtxos(server, wallet, [1, 2], function() {
-          var txOpts = {
-            outputs: [{
-              toAddress: '18PzpUFkFZE8zKWUPvfykkTxmB9oMR8qP7',
-              amount: 0.8 * 1e8,
-            }],
-            fee: 1e8,
-          };
-          server.createTx(txOpts, function(err, tx) {
-            should.exist(err);
-            err.message.should.contain('fee');
-            done();
-          });
-        });
-      });
-
       it('should be able to publish a temporary tx proposal', function(done) {
         helpers.stubUtxos(server, wallet, [1, 2], function() {
           var txOpts = {