diff --git a/tests/test_graphql_api/test_reservation/test_cancel.py b/tests/test_graphql_api/test_reservation/test_cancel.py
index 9411dbddd..6687ddf17 100644
--- a/tests/test_graphql_api/test_reservation/test_cancel.py
+++ b/tests/test_graphql_api/test_reservation/test_cancel.py
@@ -8,7 +8,7 @@
 
 from tests.factories import PaymentOrderFactory, ReservationFactory
 from tests.helpers import patch_method
-from tilavarauspalvelu.enums import OrderStatus, PaymentType, ReservationStateChoice
+from tilavarauspalvelu.enums import OrderStatus, PaymentType, ReservationStateChoice, ReservationTypeChoice
 from tilavarauspalvelu.models import ReservationCancelReason
 from tilavarauspalvelu.utils.verkkokauppa.verkkokauppa_api_client import VerkkokauppaAPIClient
 from utils.date_utils import local_datetime
@@ -20,8 +20,9 @@
 ]
 
 
-def test_reservation__cancel__success(graphql):
-    reservation = ReservationFactory.create_for_cancellation()
+@pytest.mark.parametrize("reservation_type", [ReservationTypeChoice.NORMAL, ReservationTypeChoice.SEASONAL])
+def test_reservation__cancel__success(graphql, reservation_type):
+    reservation = ReservationFactory.create_for_cancellation(type=reservation_type)
 
     graphql.login_with_superuser()
     data = get_cancel_data(reservation)
@@ -50,6 +51,36 @@ def test_reservation__cancel__adds_cancel_details(graphql):
     assert reservation.cancel_details == "foo"
 
 
+@pytest.mark.parametrize(
+    "reservation_type",
+    [
+        ReservationTypeChoice.BLOCKED,
+        ReservationTypeChoice.STAFF,
+        ReservationTypeChoice.BEHALF,
+    ],
+)
+def test_reservation__cancel__fails_type_wrong(graphql, reservation_type):
+    reservation = ReservationFactory.create_for_cancellation(type=reservation_type)
+
+    graphql.login_with_superuser()
+    data = get_cancel_data(reservation)
+    response = graphql(CANCEL_MUTATION, input_data=data)
+
+    assert response.error_message() == "Mutation was unsuccessful."
+    assert response.field_error_messages() == ["Only reservations with type ['NORMAL', 'SEASONAL'] can be cancelled."]
+
+
+def test_reservation__cancel__fails_when_type_is_seasonal_and_reservation_is_paid(graphql):
+    reservation = ReservationFactory.create_for_cancellation(type=ReservationTypeChoice.SEASONAL, price=10)
+
+    graphql.login_with_superuser()
+    data = get_cancel_data(reservation)
+    response = graphql(CANCEL_MUTATION, input_data=data)
+
+    assert response.error_message() == "Mutation was unsuccessful."
+    assert response.field_error_messages() == ["Paid seasonal reservations cannot be cancelled."]
+
+
 def test_reservation__cancel__fails_if_state_is_not_confirmed(graphql):
     reservation = ReservationFactory.create_for_cancellation(state=ReservationStateChoice.CREATED)
 
diff --git a/tilavarauspalvelu/api/graphql/types/reservation/serializers/cancellation_serializers.py b/tilavarauspalvelu/api/graphql/types/reservation/serializers/cancellation_serializers.py
index 583fbff71..265f8e5cf 100644
--- a/tilavarauspalvelu/api/graphql/types/reservation/serializers/cancellation_serializers.py
+++ b/tilavarauspalvelu/api/graphql/types/reservation/serializers/cancellation_serializers.py
@@ -5,7 +5,7 @@
 from rest_framework.exceptions import ValidationError
 
 from tilavarauspalvelu.api.graphql.extensions import error_codes
-from tilavarauspalvelu.enums import OrderStatus, ReservationStateChoice
+from tilavarauspalvelu.enums import OrderStatus, ReservationStateChoice, ReservationTypeChoice
 from tilavarauspalvelu.integrations.email.main import EmailService
 from tilavarauspalvelu.models import Reservation
 from tilavarauspalvelu.tasks import refund_paid_reservation_task
@@ -46,6 +46,14 @@ def validate(self, data: dict[str, Any]) -> dict[str, Any]:
             msg = "Only reservations with state 'CONFIRMED' can be cancelled."
             raise ValidationError(msg, code=error_codes.RESERVATION_CANCELLATION_NOT_ALLOWED)
 
+        if self.instance.type not in ReservationTypeChoice.types_that_can_be_cancelled:
+            msg = f"Only reservations with type {ReservationTypeChoice.types_that_can_be_cancelled} can be cancelled."
+            raise ValidationError(msg, code=error_codes.RESERVATION_CANCELLATION_NOT_ALLOWED)
+
+        if self.instance.type == ReservationTypeChoice.SEASONAL.value and self.instance.price > 0:
+            msg = "Paid seasonal reservations cannot be cancelled."
+            raise ValidationError(msg, code=error_codes.RESERVATION_CANCELLATION_NOT_ALLOWED)
+
         now = local_datetime()
         if self.instance.begin < now:
             msg = "Reservation cannot be cancelled after it has begun."
diff --git a/tilavarauspalvelu/enums.py b/tilavarauspalvelu/enums.py
index 9e21e38a8..fcb76a009 100644
--- a/tilavarauspalvelu/enums.py
+++ b/tilavarauspalvelu/enums.py
@@ -436,6 +436,13 @@ def should_not_anonymize(cls) -> list[str]:
             ReservationTypeChoice.STAFF.value,
         ]
 
+    @classproperty
+    def types_that_can_be_cancelled(cls) -> list[str]:
+        return [  # type: ignore[return-type]
+            ReservationTypeChoice.NORMAL.value,
+            ReservationTypeChoice.SEASONAL.value,
+        ]
+
 
 class ReservationTypeStaffChoice(models.TextChoices):
     # These are the same as the ones above, but for the staff create endpoint