diff --git a/src/clj/auto_ap/datomic/migrate/clients.clj b/src/clj/auto_ap/datomic/migrate/clients.clj
new file mode 100644
index 00000000..d4af9406
--- /dev/null
+++ b/src/clj/auto_ap/datomic/migrate/clients.clj
@@ -0,0 +1,6 @@
+(ns auto-ap.datomic.migrate.clients)
+(def norms-map {::add-bank-account-start-date
+                {:txes [[{:db/ident :bank-account/start-date
+                          :db/doc "Setting this date prevents older transactions from being imported"
+                          :db/valueType :db.type/instant
+                          :db/cardinality :db.cardinality/one}]]}})