diff --git a/tests/testutil.py b/tests/testutil.py
new file mode 100644
index 0000000000000000000000000000000000000000..47368a38726592fca11b1ad98976e3a9afff9013
--- /dev/null
+++ b/tests/testutil.py
@@ -0,0 +1,80 @@
+"""Mock Beancount objects for testing"""
+# Copyright © 2020  Brett Smith
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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 Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+import datetime
+
+import beancount.core.amount as bc_amount
+import beancount.core.data as bc_data
+
+from decimal import Decimal
+
+FY_START_DATE = datetime.date(2020, 3, 1)
+FY_MID_DATE = datetime.date(2020, 9, 1)
+
+def parse_date(s, fmt='%Y-%m-%d'):
+    return datetime.datetime.strptime(s, fmt).date()
+
+def Posting(account, number,
+            currency='USD', cost=None, price=None, flag=None,
+            **meta):
+    return bc_data.Posting(
+        account,
+        bc_amount.Amount(Decimal(number), currency),
+        cost,
+        price,
+        flag,
+        meta,
+    )
+
+class Transaction:
+    def __init__(self,
+                 date=FY_MID_DATE, flag='*', payee=None,
+                 narration='', tags=None, links=None, postings=None,
+                 **meta):
+        if isinstance(date, str):
+            date = parse_date(date)
+        self.date = date
+        self.flag = flag
+        self.payee = payee
+        self.narration = narration
+        self.tags = set(tags or '')
+        self.links = set(links or '')
+        self.postings = []
+        self.meta = {
+            'filename': '<test>',
+            'lineno': 0,
+        }
+        self.meta.update(meta)
+        for posting in postings:
+            self.add_posting(*posting)
+
+    def add_posting(self, arg, *args, **kwargs):
+        """Add a posting to this transaction. Use any of these forms:
+
+           txn.add_posting(account, number, …, kwarg=value, …)
+           txn.add_posting(account, number, …, posting_kwargs_dict)
+           txn.add_posting(posting_object)
+        """
+        if kwargs:
+            posting = Posting(arg, *args, **kwargs)
+        elif args:
+            if isinstance(args[-1], dict):
+                kwargs = args[-1]
+                args = args[:-1]
+            posting = Posting(arg, *args, **kwargs)
+        else:
+            posting = arg
+        self.postings.append(posting)