diff --git a/rattail_harvest/db/alembic/versions/6bc1cb21d920_add_harvest_user_person.py b/rattail_harvest/db/alembic/versions/6bc1cb21d920_add_harvest_user_person.py
new file mode 100644
index 0000000..31cca85
--- /dev/null
+++ b/rattail_harvest/db/alembic/versions/6bc1cb21d920_add_harvest_user_person.py
@@ -0,0 +1,35 @@
+# -*- coding: utf-8; -*-
+"""add harvest_user.person
+
+Revision ID: 6bc1cb21d920
+Revises: 5505c0e60d28
+Create Date: 2022-01-30 16:49:32.271745
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '6bc1cb21d920'
+down_revision = '5505c0e60d28'
+branch_labels = None
+depends_on = None
+
+from alembic import op
+import sqlalchemy as sa
+import rattail.db.types
+
+
+
+def upgrade():
+
+    # harvest_user
+    op.add_column('harvest_user', sa.Column('person_uuid', sa.String(length=32), nullable=True))
+    op.create_foreign_key('harvest_user_fk_person', 'harvest_user', 'person', ['person_uuid'], ['uuid'])
+    op.add_column('harvest_user_version', sa.Column('person_uuid', sa.String(length=32), autoincrement=False, nullable=True))
+
+
+def downgrade():
+
+    # harvest_user
+    op.drop_column('harvest_user_version', 'person_uuid')
+    op.drop_constraint('harvest_user_fk_person', 'harvest_user', type_='foreignkey')
+    op.drop_column('harvest_user', 'person_uuid')
diff --git a/rattail_harvest/db/model/harvest.py b/rattail_harvest/db/model/harvest.py
index 4d0e80e..7ac7506 100644
--- a/rattail_harvest/db/model/harvest.py
+++ b/rattail_harvest/db/model/harvest.py
@@ -39,6 +39,7 @@ class HarvestUser(model.Base):
     """
     __tablename__ = 'harvest_user'
     __table_args__ = (
+        sa.ForeignKeyConstraint(['person_uuid'], ['person.uuid'], name='harvest_user_fk_person'),
         sa.UniqueConstraint('id', name='harvest_user_uq_id'),
     )
     __versioned__ = {}
@@ -90,6 +91,19 @@ class HarvestUser(model.Base):
 
     updated_at = sa.Column(sa.DateTime(), nullable=True)
 
+    person_uuid = sa.Column(sa.String(length=32), nullable=True)
+    person = orm.relationship(
+        model.Person,
+        doc="""
+        Reference to the person associated with this Harvest user.
+        """,
+        backref=orm.backref(
+            'harvest_users',
+            doc="""
+            List of all Harvest user accounts for the person.
+            """)
+    )
+
     def __str__(self):
         return normalize_full_name(self.first_name, self.last_name)
 
diff --git a/rattail_harvest/harvest/importing/__init__.py b/rattail_harvest/harvest/importing/__init__.py
new file mode 100644
index 0000000..e0b3e09
--- /dev/null
+++ b/rattail_harvest/harvest/importing/__init__.py
@@ -0,0 +1,27 @@
+# -*- coding: utf-8; -*-
+################################################################################
+#
+#  Rattail -- Retail Software Framework
+#  Copyright © 2010-2022 Lance Edgar
+#
+#  This file is part of Rattail.
+#
+#  Rattail is free software: you can redistribute it and/or modify it under the
+#  terms of the GNU General Public License as published by the Free Software
+#  Foundation, either version 3 of the License, or (at your option) any later
+#  version.
+#
+#  Rattail is distributed in the hope that it will be useful, but WITHOUT ANY
+#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+#  FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+#  details.
+#
+#  You should have received a copy of the GNU General Public License along with
+#  Rattail.  If not, see <http://www.gnu.org/licenses/>.
+#
+################################################################################
+"""
+Exporting data to Harvest
+"""
+
+from . import model
diff --git a/rattail_harvest/harvest/importing/model.py b/rattail_harvest/harvest/importing/model.py
new file mode 100644
index 0000000..47e85de
--- /dev/null
+++ b/rattail_harvest/harvest/importing/model.py
@@ -0,0 +1,120 @@
+# -*- coding: utf-8; -*-
+################################################################################
+#
+#  Rattail -- Retail Software Framework
+#  Copyright © 2010-2022 Lance Edgar
+#
+#  This file is part of Rattail.
+#
+#  Rattail is free software: you can redistribute it and/or modify it under the
+#  terms of the GNU General Public License as published by the Free Software
+#  Foundation, either version 3 of the License, or (at your option) any later
+#  version.
+#
+#  Rattail is distributed in the hope that it will be useful, but WITHOUT ANY
+#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+#  FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+#  details.
+#
+#  You should have received a copy of the GNU General Public License along with
+#  Rattail.  If not, see <http://www.gnu.org/licenses/>.
+#
+################################################################################
+"""
+Harvest model importers
+"""
+
+from rattail import importing
+from rattail_harvest.harvest.webapi import make_harvest_webapi
+
+
+class ToHarvest(importing.Importer):
+
+    def setup(self):
+        super(ToHarvest, self).setup()
+        self.webapi = make_harvest_webapi(self.config)
+
+
+class TimeEntryImporter(ToHarvest):
+    """
+    Harvest time entry data importer.
+    """
+    model_name = 'TimeEntry'
+    supported_fields = [
+        'user_id',
+        'project_id',
+        'task_id',
+        'spent_date',
+        # 'started_time',
+        # 'ended_time',
+        'hours',
+        'notes',
+    ]
+    caches_local_data = True
+
+    def cache_local_data(self, host_data=None):
+        """
+        Fetch existing time entries from Harvest.
+        """
+        cache = {}
+        entries = self.webapi.get_time_entries(**{'from': self.start_date,
+                                                  'to': self.end_date})
+        for entry in entries:
+            data = self.normalize_local_object(entry)
+            if data:
+                normal = self.normalize_cache_object(entry, data)
+                key = self.get_cache_key(entry, normal)
+                cache[key] = normal
+        return cache
+
+    def normalize_local_object(self, entry):
+        data = {
+            'project_id': entry['project']['id'],
+            'task_id': entry['task']['id'],
+            'spent_date': entry['spent_date'],
+            # 'started_time': entry['started_time'],
+            # 'ended_time': entry['ended_time'],
+            'hours': entry['hours'],
+            'notes': entry['notes'],
+        }
+
+        if 'user_id' in self.fields:
+            data['user_id'] = entry['user']['id']
+
+        return data
+
+    def create_object(self, key, host_data):
+        if self.dry_run:
+            # mock out return value
+            result = dict(host_data)
+            if 'user_id' in self.fields:
+                result['user'] = {'id': result['user_id']}
+            result['project'] = {'id': result['project_id']}
+            result['task'] = {'id': result['task_id']}
+            return result
+
+        kwargs = {
+            'project_id': host_data['project_id'],
+            'task_id': host_data['task_id'],
+            'spent_date': host_data['spent_date'],
+            # 'started_time': host_data['started_time'],
+            # 'ended_time': host_data['ended_time'],
+            'hours': host_data['hours'],
+            'notes': host_data['notes'],
+        }
+        if 'user_id' in self.fields:
+            kwargs['user_id'] = host_data['user_id']
+        entry = self.webapi.put_time_entry(**kwargs)
+        return entry
+
+    def update_object(self, obj, host_data, local_data=None, all_fields=False):
+        if self.dry_run:
+            return obj
+
+        raise NotImplementedError
+
+    def delete_object(self, obj):
+        if self.dry_run:
+            return True
+
+        raise NotImplementedError
diff --git a/rattail_harvest/harvest/webapi.py b/rattail_harvest/harvest/webapi.py
index 6107b19..a037f1b 100644
--- a/rattail_harvest/harvest/webapi.py
+++ b/rattail_harvest/harvest/webapi.py
@@ -167,3 +167,12 @@ class HarvestWebAPI(object):
                 raise ValueError("must provide all of: {}".format(', '.join(required)))
         response = self.post('/time_entries', params=kwargs)
         return response.json()
+
+
+def make_harvest_webapi(config):
+    access_token = config.require('harvest', 'api.access_token')
+    account_id = config.require('harvest', 'api.account_id')
+    user_agent = config.require('harvest', 'api.user_agent')
+    return HarvestWebAPI(access_token=access_token,
+                         account_id=account_id,
+                         user_agent=user_agent)
diff --git a/rattail_harvest/importing/harvest.py b/rattail_harvest/importing/harvest.py
index cde1e1c..695d04d 100644
--- a/rattail_harvest/importing/harvest.py
+++ b/rattail_harvest/importing/harvest.py
@@ -33,7 +33,7 @@ import sqlalchemy as sa
 from rattail import importing
 from rattail.util import OrderedDict
 from rattail_harvest import importing as rattail_harvest_importing
-from rattail_harvest.harvest.webapi import HarvestWebAPI
+from rattail_harvest.harvest.webapi import make_harvest_webapi
 
 
 log = logging.getLogger(__name__)
@@ -71,13 +71,7 @@ class FromHarvest(importing.Importer):
 
     def setup(self):
         super(FromHarvest, self).setup()
-
-        access_token = self.config.require('harvest', 'api.access_token')
-        account_id = self.config.require('harvest', 'api.account_id')
-        user_agent = self.config.require('harvest', 'api.user_agent')
-        self.webapi = HarvestWebAPI(access_token=access_token,
-                                    account_id=account_id,
-                                    user_agent=user_agent)
+        self.webapi = make_harvest_webapi(self.config)
 
     def time_from_harvest(self, value):
         # all harvest times appear to come as UTC, so no conversion needed
@@ -105,6 +99,9 @@ class HarvestUserImporter(FromHarvest, rattail_harvest_importing.model.HarvestUs
     def supported_fields(self):
         fields = list(super(HarvestUserImporter, self).supported_fields)
 
+        # this is for local tracking only; is not in harvest
+        fields.remove('person_uuid')
+
         # this used to be in harvest i thought, but is no longer?
         fields.remove('name')