diff --git a/.gitignore b/.gitignore
index ba74660..d581a55 100644
--- a/.gitignore
+++ b/.gitignore
@@ -55,3 +55,6 @@ docs/_build/
 
 # PyBuilder
 target/
+
+
+.idea
\ No newline at end of file
diff --git a/pyinvoice/__init__.py b/pyinvoice/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/pyinvoice/models.py b/pyinvoice/models.py
new file mode 100644
index 0000000..14eb11b
--- /dev/null
+++ b/pyinvoice/models.py
@@ -0,0 +1,67 @@
+class InvoiceInfo(object):
+    """
+    Invoice information
+    """
+    def __init__(self, invoice_id, invoice_datetime, due_datetime):
+        self.invoice_id = invoice_id
+        self.invoice_datetime = invoice_datetime
+        self.due_datetime = due_datetime
+
+
+class AddressInfo(object):
+    def __init__(self, name, street, city, state, country, post_code):
+        self.name = name
+        self.street = street
+        self.city = city
+        self.state = state
+        self.country = country
+        self.post_code = post_code
+
+
+class ServiceProviderInfo(AddressInfo):
+    """
+    Service provider/Merchant information
+    """
+    def __init__(self, name, street, city, state, country, post_code):
+        super(ServiceProviderInfo, self).__init__(name, street, city, state, country, post_code)
+
+
+class ClientInfo(AddressInfo):
+    """
+    Client/Custom information
+    """
+    def __init__(self, email, client_id, name, street, city, state, country, post_code):
+        super(ClientInfo, self).__init__(name, street, city, state, country, post_code)
+        self.email = email
+        self.client_id = client_id
+
+
+class Item(object):
+    """
+    Product/Item information
+    """
+    def __init__(self, item_id, name, description, units, unit_price):
+        """
+        Item modal init
+        :param item_id: Order id or Item id
+        :param name: Item name
+        :param units: Amount
+        :param unit_price: Unit price
+        :return:
+        """
+        self.item_id = item_id
+        self.name = name
+        self.description = description
+        self.units = units
+        self.unit_price = unit_price
+
+
+class Transaction(object):
+    """
+    Transaction information
+    """
+    def __init__(self, gateway, transaction_id, transaction_datetime, amount):
+        self.gateway = gateway
+        self.transaction_id = transaction_id
+        self.transaction_datetime = transaction_datetime
+        self.amount = amount
\ No newline at end of file