diff --git a/migrations_nl/versions/0017_set_netherlands_postage_crown_state.py b/migrations_nl/versions/0017_set_netherlands_postage_crown_state.py
new file mode 100644
index 0000000000..0b362543be
--- /dev/null
+++ b/migrations_nl/versions/0017_set_netherlands_postage_crown_state.py
@@ -0,0 +1,43 @@
+"""set netherlands postage crown state
+
+Revision ID: 0017
+Revises: 0016
+Create Date: 2026-03-12 11:12:25.466002
+
+"""
+from alembic import op
+from sqlalchemy import text
+
+
+# revision identifiers, used by Alembic.
+revision = '0017'
+down_revision = '0016'
+branch_labels = None
+depends_on = None
+
+
+POST_CLASS = 'netherlands'
+
+
+letter_rate_update = text("""
+UPDATE letter_rates
+SET crown = :crown
+WHERE post_class = :post_class""")
+
+
+def upgrade():
+    op.execute(
+        letter_rate_update.bindparams(
+            post_class = POST_CLASS,
+            crown = True
+        )
+    )
+
+
+def downgrade():
+    op.execute(
+        letter_rate_update.bindparams(
+            post_class = POST_CLASS,
+            crown = False
+        )
+    )