diff --git a/app/helpers/collection_deadline_helper.rb b/app/helpers/collection_deadline_helper.rb
index de9c12075..d95f90e1e 100644
--- a/app/helpers/collection_deadline_helper.rb
+++ b/app/helpers/collection_deadline_helper.rb
@@ -2,18 +2,18 @@ module CollectionDeadlineHelper
   include CollectionTimeHelper
 
   QUARTERLY_DEADLINES = {
-    2024 => {
-      first_quarter_deadline: Time.zone.local(2024, 7, 12),
-      second_quarter_deadline: Time.zone.local(2024, 10, 11),
-      third_quarter_deadline: Time.zone.local(2025, 1, 10),
-      fourth_quarter_deadline: Time.zone.local(2025, 6, 6), # Same as submission deadline
-    },
     2025 => {
       first_quarter_deadline: Time.zone.local(2025, 7, 11),
       second_quarter_deadline: Time.zone.local(2025, 10, 10),
       third_quarter_deadline: Time.zone.local(2026, 1, 16),
       fourth_quarter_deadline: Time.zone.local(2026, 6, 5), # Same as submission deadline
     },
+    2026 => {
+      first_quarter_deadline: Time.zone.local(2026, 7, 10),
+      second_quarter_deadline: Time.zone.local(2026, 10, 9),
+      third_quarter_deadline: Time.zone.local(2027, 1, 15),
+      fourth_quarter_deadline: Time.zone.local(2027, 6, 4), # Same as submission deadline
+    },
   }.freeze
 
   def quarterly_cutoff_date(quarter, year)