diff --git a/app/models/exclusion.rb b/app/models/exclusion.rb
index 5c705c8ab..4afc3898f 100644
--- a/app/models/exclusion.rb
+++ b/app/models/exclusion.rb
@@ -11,16 +11,16 @@ class Exclusion < ApplicationRecord
   scope :outside_contract, -> { where.not(mef_code: nil) }
 
   class << self
-    def outside_contract?(uai, mef_code)
-      exists?(uai: uai, mef_code: mef_code)
+    def outside_contract?(uai, mef_code, start_year)
+      exists?(uai:, mef_code:, start_year:)
     end
 
-    def establishment_excluded?(uai)
-      whole_establishment.exists?(uai: uai)
+    def establishment_excluded?(uai, start_year)
+      whole_establishment.exists?(uai:, start_year:)
     end
 
-    def excluded?(uai, mef_code)
-      establishment_excluded?(uai) || outside_contract?(uai, mef_code)
+    def excluded?(uai, mef_code, start_year = nil)
+      establishment_excluded?(uai, start_year) || outside_contract?(uai, mef_code, start_year)
     end
   end
 
diff --git a/app/models/schooling.rb b/app/models/schooling.rb
index 43fc35bb0..4e9a226c9 100644
--- a/app/models/schooling.rb
+++ b/app/models/schooling.rb
@@ -97,7 +97,7 @@ def max_end_date
   end
 
   def excluded?
-    Exclusion.excluded?(establishment.uai, mef.code)
+    Exclusion.excluded?(establishment.uai, mef.code, classe.school_year.start_year)
   end
 
   def removed?
diff --git a/app/models/student/mappers/base.rb b/app/models/student/mappers/base.rb
index 57ad034b5..b200082ac 100644
--- a/app/models/student/mappers/base.rb
+++ b/app/models/student/mappers/base.rb
@@ -74,7 +74,7 @@ def map_classe!(entry)
 
         return if label.nil? || mef.nil? || school_year.nil?
 
-        return if Exclusion.excluded?(uai, mef_code)
+        return if Exclusion.excluded?(uai, mef_code, school_year.start_year)
 
         Classe.find_or_create_by!(
           label:,
diff --git a/db/exclusion_seeder.rb b/db/exclusion_seeder.rb
index b00ffb23b..17c5eb776 100644
--- a/db/exclusion_seeder.rb
+++ b/db/exclusion_seeder.rb
@@ -22,16 +22,16 @@ class ExclusionSeeder
     %w[0442083A 2473121131],
     %w[0442083A 2473121332],
     %w[0442083A 2473121333],
-    %w[0442227G 2403320511],
     %w[0910838S 2473000433],
-    %w[0910838S 2473121432]
+    %w[0910838S 2473121432],
+    %w[0442227G 2403320511 2023]
   ].freeze
 
   def self.seed
     logger = ActiveSupport::TaggedLogging.new(Logger.new($stdout))
 
-    EXCLUSIONS.each do |uai, mef_code|
-      Exclusion.find_or_create_by!(uai: uai, mef_code: mef_code)
+    EXCLUSIONS.each do |uai, mef_code, start_year|
+      Exclusion.find_or_create_by!(uai:, mef_code:, start_year:)
     end
 
     logger.info { "[seeds] upserted #{Exclusion.count} exclusions" }
diff --git a/db/migrate/20250127092313_add_school_year_to_exclusions.rb b/db/migrate/20250127092313_add_school_year_to_exclusions.rb
new file mode 100644
index 000000000..83327e89d
--- /dev/null
+++ b/db/migrate/20250127092313_add_school_year_to_exclusions.rb
@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+
+class AddSchoolYearToExclusions < ActiveRecord::Migration[8.0]
+  def change
+    add_column :exclusions, :start_year, :int, default: nil
+
+    remove_index :exclusions, %i[uai mef_code]
+    add_index :exclusions, %i[uai mef_code start_year], unique: true
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index b1a7cbdbd..da6b17b32 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[8.0].define(version: 2025_01_13_111229) do
+ActiveRecord::Schema[8.0].define(version: 2025_01_27_092313) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "pg_catalog.plpgsql"
   enable_extension "unaccent"
@@ -149,7 +149,8 @@
     t.string "mef_code"
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
-    t.index ["uai", "mef_code"], name: "index_exclusions_on_uai_and_mef_code", unique: true
+    t.integer "start_year"
+    t.index ["uai", "mef_code", "start_year"], name: "index_exclusions_on_uai_and_mef_code_and_start_year", unique: true
   end
 
   create_table "invitations", force: :cascade do |t|