diff --git a/app/models/accounting_period.rb b/app/models/accounting_period.rb
index 8df85b8c2..236ea4ced 100644
--- a/app/models/accounting_period.rb
+++ b/app/models/accounting_period.rb
@@ -52,7 +52,8 @@ class AccountingPeriod < ActiveRecord::Base
         code_checksum: code_checksum,
         last_archive_checksum: last_archive_checksum,
         previous_file: previous_file,
-        software_version: Version.current
+        software_version: Version.current,
+        date: Time.now.iso8601
       },
       formats: [:json],
       handlers: [:jbuilder]
diff --git a/app/views/archive/_accounting.json.jbuilder b/app/views/archive/_accounting.json.jbuilder
index 0ee14a39a..f69e0c95f 100644
--- a/app/views/archive/_accounting.json.jbuilder
+++ b/app/views/archive/_accounting.json.jbuilder
@@ -67,3 +67,4 @@ json.previous_archive do
 end
 
 json.period_footprint period_footprint
+json.archive_date date