diff --git a/jmclient/jmclient/__init__.py b/jmclient/jmclient/__init__.py
index 26dd57b..1d60918 100644
--- a/jmclient/jmclient/__init__.py
+++ b/jmclient/jmclient/__init__.py
@@ -34,6 +34,8 @@ from .schedule import (get_schedule, get_tumble_schedule, schedule_to_text,
                        tweak_tumble_schedule, human_readable_schedule_entry,
                        schedule_to_text)
 from .commitment_utils import get_utxo_info, validate_utxo_data, quit
+from .tumble_support import (tumbler_taker_finished_update, restart_waiter,
+                             get_tumble_log)
 # Set default logging handler to avoid "No handler found" warnings.
 
 try:
diff --git a/jmclient/jmclient/taker.py b/jmclient/jmclient/taker.py
index 06f1eda..f130d83 100644
--- a/jmclient/jmclient/taker.py
+++ b/jmclient/jmclient/taker.py
@@ -30,14 +30,46 @@ class Taker(object):
                  order_chooser=weighted_order_choose,
                  sign_method=None,
                  callbacks=None):
-        """Schedule must be a list of tuples: [(mixdepth,cjamount,N, destaddr),..]
+        """Schedule must be a list of tuples: (see sample_schedule_for_testnet
+        for explanation of syntax, also schedule.py module in this directory),
         which will be a sequence of joins to do.
-        callbacks:
-        1.filter orders callback: called to allow the client to decide whether
-        to accept the proposed offers.
-        2.taker info callback: called to allow the client to read updates
-        3.on finished callback: called on completion, either of the whole schedule
-        or early if a transactoin fails.
+        Callbacks:
+        External callers set the 3 callbacks for filtering orders,
+        sending info messages to client, and action on completion.
+        "None" is allowable for taker_info_callback, defaults to log msg.
+        Callback function definitions:
+        =====================
+        filter_orders_callback
+        =====================
+        args:
+        1. orders_fees - a list of two items 1. orders dict 2 total cjfee
+        2. cjamount - coinjoin amount in satoshis
+        returns:
+        False - offers rejected OR
+        True - offers accepted OR
+        'retry' - offers not accepted but try again
+        =======================
+        on_finished_callback
+        =======================
+        args:
+        1. res - True means tx successful, False means tx unsucessful
+        2. fromtx - True means not the final transaction, False means final
+         (end of schedule), 'unconfirmed' means tx seen on the network only.
+        3. waittime - passed in minutes, time to wait after confirmation before
+         continuing to next tx (thus, only used if fromtx is True).
+        4. txdetails - a tuple (txd, txid) - only to be used when fromtx
+         is 'unconfirmed', used for monitoring.
+        returns:
+        None
+        ========================
+        taker_info_callback
+        ========================
+        args:
+        1. type - one of 'ABORT' or 'INFO', the former signals the client that
+         processing of this transaction is aborted, the latter is only an update.
+        2. message - an information message.
+        returns:
+        None
         """
         self.aborted = False
         self.wallet = wallet
@@ -50,27 +82,10 @@ class Taker(object):
         #allow custom wallet-based clients to use their own signing code;
         #currently only setting "wallet" is allowed, calls wallet.sign_tx(tx)
         self.sign_method = sign_method
-        #External callers set the 3 callbacks for filtering orders,
-        #sending info messages to client, and action on completion.
-        #"None" is allowable for taker_info_callback, defaults to log msg.
-        #"None" is allowable for filter_orders_callback, in which case offers
-        #are automatically accepted (bar insane fees).
-        #"None" is *not* allowable for taker_finished_callback, as it controls
-        #process flow after tx finished.
-        """Signature of filter_orders_callback:
-        args: orders_fees, cjamount
-        returns: boolean representing accept/reject
-        """
         self.filter_orders_callback = callbacks[0]
         self.taker_info_callback = callbacks[1]
         if not self.taker_info_callback:
             self.taker_info_callback = self.default_taker_info_callback
-        """Signature of on_finished_callback:
-        args: res: True/False to flag success
-        from_tx: indicating whether all txs finished, or more to do
-        waittime: how long to wait before continuing to next.
-        returns: None
-        """
         self.on_finished_callback = callbacks[2]
 
     def default_taker_info_callback(self, infotype, msg):
diff --git a/jmclient/jmclient/tumble_support.py b/jmclient/jmclient/tumble_support.py
new file mode 100644
index 0000000..c484a36
--- /dev/null
+++ b/jmclient/jmclient/tumble_support.py
@@ -0,0 +1,159 @@
+from __future__ import absolute_import, print_function
+from jmclient import schedule_to_text, human_readable_schedule_entry
+import logging
+import pprint
+import os
+import time
+from .configure import get_log, jm_single, validate_address
+from .schedule import human_readable_schedule_entry, tweak_tumble_schedule
+
+log = get_log()
+
+"""
+Utility functions for tumbler-style takers;
+Currently re-used by CLI script tumbler.py and joinmarket-qt
+"""
+
+def get_tumble_log(logsdir):
+    tumble_log = logging.getLogger('tumbler')
+    tumble_log.setLevel(logging.DEBUG)
+    logFormatter = logging.Formatter(
+        ('%(asctime)s %(message)s'))
+    fileHandler = logging.FileHandler(os.path.join(logsdir, 'TUMBLE.log'))
+    fileHandler.setFormatter(logFormatter)
+    tumble_log.addHandler(fileHandler)
+    return tumble_log
+
+def restart_waiter(txid):
+    """Given a txid, wait for confirmation by polling the blockchain
+    interface instance. Note that this is currently blocking, which is
+    fine for the CLI for now, but should be re-done using twisted/thread TODO.
+    """
+    ctr = 0
+    log.info("Waiting for confirmation of last transaction: " + str(txid))
+    while True:
+        time.sleep(10)
+        ctr += 1
+        if not (ctr % 12):
+            log.debug("Still waiting for confirmation of last transaction ...")
+        res = jm_single().bc_interface.query_utxo_set(txid, includeconf=True)
+        if not res[0]:
+            continue
+        if res[0]['confirms'] > 0:
+            break
+    log.info("The previous transaction is now in a block; continuing.")
+
+def unconf_update(taker, schedulefile, tumble_log, addtolog=False):
+    """Provide a Taker object, a schedulefile path for the current
+    schedule, a logging instance for TUMBLE.log, and a parameter
+    for whether to update TUMBLE.log.
+    Makes the necessary state updates explained below, including to
+    the wallet.
+    Note that this is re-used for confirmation with addtolog=False,
+    to avoid a repeated entry in the log.
+    """
+    #on taker side, cache index update is only required after tx
+    #push, to avoid potential of address reuse in case of a crash,
+    #because addresses are not public until broadcast (whereas for makers,
+    #they are public *during* negotiation). So updating the cache here
+    #is sufficient
+    taker.wallet.update_cache_index()
+
+    #We persist the fact that the transaction is complete to the
+    #schedule file. Note that if a tweak to the schedule occurred,
+    #it only affects future (non-complete) transactions, so the final
+    #full record should always be accurate; but TUMBLE.log should be
+    #used for checking what actually happened.
+    completion_flag = 1 if not addtolog else taker.txid
+    taker.schedule[taker.schedule_index][5] = completion_flag
+    with open(schedulefile, "wb") as f:
+        f.write(schedule_to_text(taker.schedule))
+
+    if addtolog:
+        tumble_log.info("Completed successfully this entry:")
+        #the log output depends on if it's to INTERNAL
+        hrdestn = None
+        if taker.schedule[taker.schedule_index][3] in ["INTERNAL", "addrask"]:
+            hrdestn = taker.my_cj_addr
+        #Whether sweep or not, the amt is not in satoshis; use taker data
+        hramt = taker.cjamount
+        tumble_log.info(human_readable_schedule_entry(
+            taker.schedule[taker.schedule_index], hramt, hrdestn))
+        tumble_log.info("Txid was: " + taker.txid)
+
+def tumbler_taker_finished_update(taker, schedulefile, tumble_log, options,
+                   res, fromtx=False, waittime=0.0, txdetails=None):
+    """on_finished_callback processing for tumbler.
+    Note that this is *not* the full callback, but provides common
+    processing across command line and other GUI versions.
+    """
+
+    if fromtx == "unconfirmed":
+        #unconfirmed event means transaction has been propagated,
+        #we update state to prevent accidentally re-creating it in
+        #any crash/restart condition
+        unconf_update(taker, schedulefile, tumble_log, True)
+        return
+
+    if fromtx:
+        if res:
+            #this has no effect except in the rare case that confirmation
+            #is immediate; also it does not repeat the log entry.
+            unconf_update(taker, schedulefile, tumble_log, False)
+            #note that Qt does not yet support 'addrask', so this is only
+            #for command line script TODO
+            if taker.schedule[taker.schedule_index+1][3] == 'addrask':
+                jm_single().debug_silence[0] = True
+                print('\n'.join(['=' * 60] * 3))
+                print('Tumbler requires more addresses to stop amount correlation')
+                print('Obtain a new destination address from your bitcoin recipient')
+                print(' for example click the button that gives a new deposit address')
+                print('\n'.join(['=' * 60] * 1))
+                while True:
+                    destaddr = raw_input('insert new address: ')
+                    addr_valid, errormsg = validate_address(destaddr)
+                    if addr_valid:
+                        break
+                    print(
+                    'Address ' + destaddr + ' invalid. ' + errormsg + ' try again')
+                jm_single().debug_silence[0] = False
+                taker.schedule[taker.schedule_index+1][3] = destaddr
+
+            waiting_message = "Waiting for: " + str(waittime) + " minutes."
+            tumble_log.info(waiting_message)
+            log.info(waiting_message)
+            txd, txid = txdetails
+            taker.wallet.remove_old_utxos(txd)
+            taker.wallet.add_new_utxos(txd, txid)
+        else:
+            #a transaction failed; tumbler is aggressive in trying to
+            #complete; we tweak the schedule from this point in the mixdepth,
+            #then try again:
+            tumble_log.info("Transaction attempt failed, tweaking schedule"
+                            " and trying again.")
+            tumble_log.info("The paramaters of the failed attempt: ")
+            tumble_log.info(str(taker.schedule[taker.schedule_index]))
+            log.info("Schedule entry: " + str(
+                taker.schedule[taker.schedule_index]) + \
+                     " failed after timeout, trying again")
+            taker.schedule_index -= 1
+            taker.schedule = tweak_tumble_schedule(options, taker.schedule,
+                                                   taker.schedule_index)
+            tumble_log.info("We tweaked the schedule, the new schedule is:")
+            tumble_log.info(pprint.pformat(taker.schedule))
+    else:
+        if not res:
+            failure_msg = "Did not complete successfully, shutting down"
+            tumble_log.info(failure_msg)
+            log.info(failure_msg)
+        else:
+            log.info("All transactions completed correctly")
+            tumble_log.info("Completed successfully the last entry:")
+            #Whether sweep or not, the amt is not in satoshis; use taker data
+            hramt = taker.cjamount
+            tumble_log.info(human_readable_schedule_entry(
+                taker.schedule[taker.schedule_index], hramt))
+            #copy of above, TODO refactor out
+            taker.schedule[taker.schedule_index][5] = 1
+            with open(schedulefile, "wb") as f:
+                f.write(schedule_to_text(taker.schedule))
diff --git a/scripts/joinmarket-qt.py b/scripts/joinmarket-qt.py
index 2cb3a4f..c0a08df 100644
--- a/scripts/joinmarket-qt.py
+++ b/scripts/joinmarket-qt.py
@@ -50,7 +50,10 @@ from jmclient import (load_program_config, get_network, Wallet,
                       JMTakerClientProtocolFactory, WalletError,
                       start_reactor, get_schedule, get_tumble_schedule,
                       schedule_to_text, mn_decode, mn_encode, create_wallet_file,
-                      get_blockchain_interface_instance, sync_wallet)
+                      get_blockchain_interface_instance, sync_wallet,
+                      RegtestBitcoinCoreInterface, tweak_tumble_schedule,
+                      human_readable_schedule_entry, tumbler_taker_finished_update,
+                      get_tumble_log, restart_waiter)
 
 from qtsupport import (ScheduleWizard, warnings, config_tips, config_types,
                        TaskThread, QtHandler, XStream, Buttons, CloseButton,
@@ -292,6 +295,7 @@ class SpendTab(QWidget):
         wizard = ScheduleWizard()
         wizard.exec_()
         self.loaded_schedule = wizard.get_schedule()
+        self.tumbler_options = wizard.opts
         self.sch_label2.setText(wizard.get_name())
         self.sched_view.setText(schedule_to_text(self.loaded_schedule))
         self.sch_startButton.setEnabled(True)
@@ -315,11 +319,14 @@ class SpendTab(QWidget):
                            title='Error')
         else:
             w.statusBar().showMessage("Schedule loaded OK.")
-            self.sch_label2.setText(os.path.basename(str(firstarg)))
-            self.sched_view.setText(rawsched)
+            self.updateSchedView(rawsched, os.path.basename(str(firstarg)))
             self.sch_startButton.setEnabled(True)
             self.loaded_schedule = schedule
 
+    def updateSchedView(self, text, name):
+        self.sch_label2.setText(name)
+        self.sched_view.setText(text)
+
     def getDonateLayout(self):
         donateLayout = QHBoxLayout()
         self.donateCheckBox = QCheckBox()
@@ -575,11 +582,12 @@ class SpendTab(QWidget):
         self.taker_info_response = None
         return
 
-    def callback_takerFinished(self, res, fromtx=False, waittime=0.0):
+    def callback_takerFinished(self, res, fromtx=False, waittime=0.0,
+                               txdetails=None):
         self.taker_finished_res = res
         self.taker_finished_fromtx = fromtx
-        #TODO; equivalent of reactor.callLater to deliberately delay (for tumbler)
-        self.taker_finished_waittime = int(waittime*1000)
+        self.taker_finished_waittime = waittime
+        self.taker_finished_txdetails = txdetails
         self.jmclient_obj.emit(QtCore.SIGNAL('JMCLIENT:finished'))
         return
 
@@ -665,40 +673,44 @@ class SpendTab(QWidget):
         """Callback (after pass-through signal) for jmclient.Taker
         on completion of each join transaction.
         """
+        sfile = os.path.join(logsdir, 'TUMBLE.schedule')
+        #non-GUI-specific state updates first:
+        tumbler_taker_finished_update(self.taker, sfile, tumble_log,
+                                      self.tumbler_options, self.taker_finished_res,
+                                      self.taker_finished_fromtx,
+                                      self.taker_finished_waittime,
+                                      self.taker_finished_txdetails)
+
+        #Shows the schedule updates in the GUI; TODO make this more visual
+        self.updateSchedView(schedule_to_text(self.taker.schedule),
+                             'TUMBLE.schedule')
+
+        #GUI-specific updates; QTimer.singleShort serves the role
+        #of reactor.callLater
+        if self.taker_finished_fromtx == "unconfirmed":
+            w.statusBar().showMessage(
+                "Transaction seen on network: " + self.taker.txid)
+            return
         if self.taker_finished_fromtx:
-            #not the final finished transaction
             if self.taker_finished_res:
-                w.statusBar().showMessage("Transaction completed successfully.")
-                self.persistTxToHistory(self.taker.my_cj_addr,
-                                        self.taker.cjamount,
+                self.persistTxToHistory(self.taker.my_cj_addr, self.taker.cjamount,
                                         self.taker.txid)
-                log.debug("Waiting for: " + str(
-                    self.taker_finished_waittime/1000.0) + " secs.")
-                QtCore.QTimer.singleShot(self.taker_finished_waittime,
+                w.statusBar().showMessage("Transaction confirmed: " + self.taker.txid)
+                #singleShot argument is in milliseconds
+                QtCore.QTimer.singleShot(int(self.taker_finished_waittime*60*1000),
                                          self.startNextTransaction)
             else:
-                #a transaction failed to reach broadcast;
-                #restart processing from the failed schedule entry;
-                #note that for some failure vectors this is essentially
-                #an infinite loop, but the user can abort any time (or
-                #modify the wallet e.g. to add commitment utxos).
-                self.taker.schedule_index -= 1
-                log.info("Transaction failed after timeout, trying again")
+                w.statusBar().showMessage("Transaction failed, trying again...")
                 QtCore.QTimer.singleShot(0, self.startNextTransaction)
                 self.giveUp()
         else:
-            #the final, or a permanent failure
-            if not self.taker_finished_res:
-                log.info("Did not complete successfully, shutting down")
-            else:
-                log.info("All transactions completed correctly")
+            if self.taker_finished_res:
+                self.persistTxToHistory(self.taker.my_cj_addr, self.taker.cjamount,
+                                                        self.taker.txid)
                 w.statusBar().showMessage("All transaction(s) completed successfully.")
-                self.persistTxToHistory(self.taker.my_cj_addr,
-                                        self.taker.cjamount,
-                                        self.taker.txid)
                 if len(self.taker.schedule) == 1:
                     msg = "Transaction has been broadcast.\n" + "Txid: " + \
-                           str(self.taker.txid)
+                                           str(self.taker.txid)
                 else:
                     msg = "All transactions have been broadcast."
                 JMQtMessageBox(self, msg, title="Success")
@@ -1437,10 +1449,18 @@ except Exception as e:
     exit(1)
 update_config_for_gui()
 
-#we're not downloading from github, so logs dir
-#might not exist
+#to allow testing of confirm/unconfirm callback for multiple txs
+if isinstance(jm_single().bc_interface, RegtestBitcoinCoreInterface):
+    jm_single().bc_interface.tick_forward_chain_interval = 10
+    jm_single().maker_timeout_sec = 5
+
+#prepare for logging
 if not os.path.exists('logs'):
     os.makedirs('logs')
+logsdir = os.path.join(os.path.dirname(jm_single().config_location), "logs")
+#tumble log will not always be used, but is made available anyway:
+tumble_log = get_tumble_log(logsdir)
+
 appWindowTitle = 'JoinMarketQt'
 w = JMMainWindow()
 tabWidget = QTabWidget(w)
diff --git a/scripts/qtsupport.py b/scripts/qtsupport.py
index 70a278e..0a75d2d 100644
--- a/scripts/qtsupport.py
+++ b/scripts/qtsupport.py
@@ -496,7 +496,7 @@ class SchDynamicPage1(QWizardPage):
         results = []
         sN = ['Starting mixdepth', 'Average number of counterparties',
               'How many mixdepths to tumble through',
-              'Average wait time between transactions, in seconds',
+              'Average wait time between transactions, in minutes',
               'Average number of transactions per mixdepth']
         #Tooltips
         sH = ["The starting mixdepth can be decided from the Wallet tab; it must "
@@ -619,19 +619,19 @@ class ScheduleWizard(QWizard):
         destaddrs = [str(x) for x in [self.field("destaddr0").toString(),
                      self.field("destaddr1").toString(),
                      self.field("destaddr2").toString()]]
-        opts = {}
-        opts['mixdepthsrc'] = int(self.field("mixdepthsrc").toString())
-        opts['mixdepthcount'] = int(self.field("mixdepthcount").toString())
-        opts['txfee'] = -1
-        opts['addrcount'] = 3
-        opts['makercountrange'] = (int(self.field("makercount").toString()), 1)
-        opts['minmakercount'] = 2
-        opts['txcountparams'] = (int(self.field("txcountparams").toString()), 1)
-        opts['mintxcount'] = 1
-        opts['amountpower'] = 100.0
-        opts['timelambda'] = float(self.field("timelambda").toString())
-        opts['waittime'] = 20
-        opts['mincjamount'] = 1000000
+        self.opts = {}
+        self.opts['mixdepthsrc'] = int(self.field("mixdepthsrc").toString())
+        self.opts['mixdepthcount'] = int(self.field("mixdepthcount").toString())
+        self.opts['txfee'] = -1
+        self.opts['addrcount'] = 3
+        self.opts['makercountrange'] = (int(self.field("makercount").toString()), 1)
+        self.opts['minmakercount'] = 2
+        self.opts['txcountparams'] = (int(self.field("txcountparams").toString()), 1)
+        self.opts['mintxcount'] = 1
+        self.opts['amountpower'] = 100.0
+        self.opts['timelambda'] = float(self.field("timelambda").toString())
+        self.opts['waittime'] = 20
+        self.opts['mincjamount'] = 1000000
         #needed for Taker to check:
-        jm_single().mincjamount = opts['mincjamount']
-        return get_tumble_schedule(opts, destaddrs)
+        jm_single().mincjamount = self.opts['mincjamount']
+        return get_tumble_schedule(self.opts, destaddrs)
diff --git a/scripts/tumbler.py b/scripts/tumbler.py
index 5c6b869..3731a0c 100644
--- a/scripts/tumbler.py
+++ b/scripts/tumbler.py
@@ -1,3 +1,4 @@
+#! /usr/bin/env python
 from __future__ import absolute_import, print_function
 
 import random
@@ -17,49 +18,24 @@ from jmclient import (Taker, load_program_config, get_schedule,
                       Wallet, sync_wallet, get_tumble_schedule,
                       RegtestBitcoinCoreInterface, estimate_tx_fee,
                       tweak_tumble_schedule, human_readable_schedule_entry,
-                      schedule_to_text)
+                      schedule_to_text, restart_waiter, get_tumble_log,
+                      tumbler_taker_finished_update)
 
 from jmbase.support import get_log, debug_dump_object, get_password
 from cli_options import get_tumbler_parser
 log = get_log()
+logsdir = os.path.join(os.path.dirname(
+    jm_single().config_location), "logs")
 
-def restart_waiter(txid):
-    ctr = 0
-    log.info("Waiting for confirmation of last transaction: " + str(txid))
-    while True:
-        time.sleep(10)
-        ctr += 1
-        if not (ctr % 12):
-            log.debug("Still waiting for confirmation of last transaction ...")
-        res = jm_single().bc_interface.query_utxo_set(txid, includeconf=True)
-        if not res[0]:
-            continue
-        if res[0]['confirms'] > 0:
-            break
-    log.info("The last transaction is now in a block; continuing.")
 
 def main():
-    #Prepare log file giving simplified information
-    #on progress of tumble.
-    tumble_log = logging.getLogger('tumbler')
-    tumble_log.setLevel(logging.DEBUG)
-    logFormatter = logging.Formatter(
-        ('%(asctime)s %(message)s'))
-    logsdir = os.path.join(os.path.dirname(
-    jm_single().config_location), "logs")
-    fileHandler = logging.FileHandler(os.path.join(logsdir, 'TUMBLE.log'))
-    fileHandler.setFormatter(logFormatter)
-    tumble_log.addHandler(fileHandler)
-
+    tumble_log = get_tumble_log(logsdir)
     (options, args) = get_tumbler_parser().parse_args()
     options = vars(options)
-
     if len(args) < 1:
         parser.error('Needs a wallet file')
         sys.exit(0)
-
     load_program_config()
-
     #Load the wallet
     wallet_name = args[0]
     max_mix_depth = options['mixdepthsrc'] + options['mixdepthcount']
@@ -124,8 +100,10 @@ def main():
 
     print("Progress logging to logs/TUMBLE.log")
 
-    #callback for order checking; dummy/passthrough
     def filter_orders_callback(orders_fees, cjamount):
+        """Since the tumbler does not use interactive fee checking,
+        we use the -x values from the command line instead.
+        """
         orders, total_cj_fee = orders_fees
         abs_cj_fee = 1.0 * total_cj_fee / taker.n_counterparties
         rel_cj_fee = abs_cj_fee / cjamount
@@ -139,112 +117,17 @@ def main():
         return True
 
     def taker_finished(res, fromtx=False, waittime=0.0, txdetails=None):
-        """on_finished_callback for tumbler
+        """on_finished_callback for tumbler; processing is almost entirely
+        deferred to generic taker_finished in tumbler_support module, except
+        here reactor signalling.
         """
-        def unconf_update(addtolog=False):
-            #on taker side, cache index update is only required after tx
-            #push, to avoid potential of address reuse in case of a crash,
-            #because addresses are not public until broadcast (whereas for makers,
-            #they are public *during* negotiation). So updating the cache here
-            #is sufficient
-            taker.wallet.update_cache_index()
-
-            #We persist the fact that the transaction is complete to the
-            #schedule file. Note that if a tweak to the schedule occurred,
-            #it only affects future (non-complete) transactions, so the final
-            #full record should always be accurate; but TUMBLE.log should be
-            #used for checking what actually happened.
-            completion_flag = 1 if not addtolog else taker.txid
-            taker.schedule[taker.schedule_index][5] = completion_flag
-            with open(os.path.join(logsdir, options['schedulefile']),
-                      "wb") as f:
-                f.write(schedule_to_text(taker.schedule))
-
-            if addtolog:
-                tumble_log.info("Completed successfully this entry:")
-                #the log output depends on if it's to INTERNAL
-                hrdestn = None
-                if taker.schedule[taker.schedule_index][3] in ["INTERNAL", "addrask"]:
-                    hrdestn = taker.my_cj_addr
-                #Whether sweep or not, the amt is not in satoshis; use taker data
-                hramt = taker.cjamount
-                tumble_log.info(human_readable_schedule_entry(
-                    taker.schedule[taker.schedule_index], hramt, hrdestn))
-                tumble_log.info("Txid was: " + taker.txid)
-
-        if fromtx == "unconfirmed":
-            #unconfirmed event means transaction has been propagated,
-            #we update state to prevent accidentally re-creating it in
-            #any crash/restart condition
-            unconf_update(True)
-            return
-
-        if fromtx:
-            if res:
-                #this has no effect except in the rare case that confirmation
-                #is immediate; also it does not repeat the log entry.
-                unconf_update()
-
-                if taker.schedule[taker.schedule_index+1][3] == 'addrask':
-                    jm_single().debug_silence[0] = True
-                    print('\n'.join(['=' * 60] * 3))
-                    print('Tumbler requires more addresses to stop amount correlation')
-                    print('Obtain a new destination address from your bitcoin recipient')
-                    print(' for example click the button that gives a new deposit address')
-                    print('\n'.join(['=' * 60] * 1))
-                    while True:
-                        destaddr = raw_input('insert new address: ')
-                        addr_valid, errormsg = validate_address(destaddr)
-                        if addr_valid:
-                            break
-                        print(
-                        'Address ' + destaddr + ' invalid. ' + errormsg + ' try again')
-                    jm_single().debug_silence[0] = False
-                    taker.schedule[taker.schedule_index+1][3] = destaddr
-
-                waiting_message = "Waiting for: " + str(waittime) + " minutes."
-                tumble_log.info(waiting_message)
-                log.info(waiting_message)
-                txd, txid = txdetails
-                taker.wallet.remove_old_utxos(txd)
-                taker.wallet.add_new_utxos(txd, txid)
-                reactor.callLater(waittime*60,
-                                  clientfactory.getClient().clientStart)
-            else:
-                #a transaction failed; tumbler is aggressive in trying to
-                #complete; we tweak the schedule from this point in the mixdepth,
-                #then try again:
-                tumble_log.info("Transaction attempt failed, tweaking schedule"
-                                " and trying again.")
-                tumble_log.info("The paramaters of the failed attempt: ")
-                tumble_log.info(str(taker.schedule[taker.schedule_index]))
-                log.info("Schedule entry: " + str(
-                    taker.schedule[taker.schedule_index]) + \
-                         " failed after timeout, trying again")
-                taker.schedule_index -= 1
-                taker.schedule = tweak_tumble_schedule(options, taker.schedule,
-                                                       taker.schedule_index)
-                tumble_log.info("We tweaked the schedule, the new schedule is:")
-                tumble_log.info(pprint.pformat(taker.schedule))
-                reactor.callLater(0, clientfactory.getClient().clientStart)
-        else:
-            if not res:
-                failure_msg = "Did not complete successfully, shutting down"
-                tumble_log.info(failure_msg)
-                log.info(failure_msg)
-            else:
-                log.info("All transactions completed correctly")
-                tumble_log.info("Completed successfully the last entry:")
-                #Whether sweep or not, the amt is not in satoshis; use taker data
-                hramt = taker.cjamount
-                tumble_log.info(human_readable_schedule_entry(
-                    taker.schedule[taker.schedule_index], hramt))
-                #copy of above, TODO refactor out
-                taker.schedule[taker.schedule_index][5] = 1
-                with open(os.path.join(logsdir, options['schedulefile']),
-                          "wb") as f:
-                    f.write(schedule_to_text(taker.schedule))
+        sfile = os.path.join(logsdir, options['schedulefile'])
+        tumbler_taker_finished_update(taker, sfile, tumble_log, options,
+                                      res, fromtx, waittime, txdetails)
+        if not fromtx:
             reactor.stop()
+        elif fromtx != "unconfirmed":
+            reactor.callLater(waittime*60, clientfactory.getClient().clientStart)
 
     #to allow testing of confirm/unconfirm callback for multiple txs
     if isinstance(jm_single().bc_interface, RegtestBitcoinCoreInterface):