diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index c9fae787e8..b56eedf591 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -1,3 +1,9 @@
+*   Allow the inverse of a `has_one` association that was previously autosaved to be loaded.
+
+    Fixes #34255.
+
+    *Steven Weber*
+
 *   Optimise the length of index names for polymorphic references by using the reference name rather than the type and id column names.
 
     Because the default behaviour when adding an index with multiple columns is to use all column names in the index name, this could frequently lead to overly long index names for polymorphic references which would fail the migration if it exceeded the database limit.
diff --git a/activerecord/lib/active_record/autosave_association.rb b/activerecord/lib/active_record/autosave_association.rb
index 06a4804f89..7b550dae5f 100644
--- a/activerecord/lib/active_record/autosave_association.rb
+++ b/activerecord/lib/active_record/autosave_association.rb
@@ -463,7 +463,7 @@ module ActiveRecord
               unless reflection.through_reflection
                 record[reflection.foreign_key] = key
                 if inverse_reflection = reflection.inverse_of
-                  record.association(inverse_reflection.name).loaded!
+                  record.association(inverse_reflection.name).inversed_from(self)
                 end
               end
 
diff --git a/activerecord/test/cases/associations/inverse_associations_test.rb b/activerecord/test/cases/associations/inverse_associations_test.rb
index a570d4a26a..1c48f19b43 100644
--- a/activerecord/test/cases/associations/inverse_associations_test.rb
+++ b/activerecord/test/cases/associations/inverse_associations_test.rb
@@ -781,6 +781,17 @@ class InversePolymorphicBelongsToTests < ActiveRecord::TestCase
     assert_same old_inversed_human, new_inversed_human
   end
 
+  def test_inversed_instance_should_load_after_autosave_if_it_is_not_already_loaded
+    human = Human.create!
+    human.create_autosave_face!
+
+    human.autosave_face.reload # clear cached load of autosave_human
+    human.autosave_face.description = "new description"
+    human.save!
+
+    assert_not_nil human.autosave_face.autosave_human
+  end
+
   def test_should_not_try_to_set_inverse_instances_when_the_inverse_is_a_has_many
     interest = interests(:llama_wrangling)
     human = interest.polymorphic_human
diff --git a/activerecord/test/models/face.rb b/activerecord/test/models/face.rb
index 2cb830ab30..49de4b1f64 100644
--- a/activerecord/test/models/face.rb
+++ b/activerecord/test/models/face.rb
@@ -2,6 +2,7 @@
 
 class Face < ActiveRecord::Base
   belongs_to :human, inverse_of: :face
+  belongs_to :autosave_human, class_name: "Human", foreign_key: :human_id, inverse_of: :autosave_face
   belongs_to :super_human, polymorphic: true
   belongs_to :polymorphic_human, polymorphic: true, inverse_of: :polymorphic_face
   # Oracle identifier length is limited to 30 bytes or less, `polymorphic` renamed `poly`
diff --git a/activerecord/test/models/human.rb b/activerecord/test/models/human.rb
index 6e71dbf4ab..606a818640 100644
--- a/activerecord/test/models/human.rb
+++ b/activerecord/test/models/human.rb
@@ -4,6 +4,7 @@ class Human < ActiveRecord::Base
   self.table_name = "humans"
 
   has_one :face, inverse_of: :human
+  has_one :autosave_face, class_name: "Face", autosave: true, foreign_key: :human_id, inverse_of: :autosave_human
   has_one :polymorphic_face, class_name: "Face", as: :polymorphic_human, inverse_of: :polymorphic_human
   has_one :polymorphic_face_without_inverse, class_name: "Face", as: :poly_human_without_inverse
   has_many :interests, inverse_of: :human