diff --git a/spec/booking_spec.cr b/spec/booking_spec.cr
index 08de6302..53d3f56b 100644
--- a/spec/booking_spec.cr
+++ b/spec/booking_spec.cr
@@ -743,6 +743,103 @@ module PlaceOS::Model
     deleted_booking.not_nil!.deleted.should be_true
   end
 
+  it "expands a cancelled series as cancelled occurrences only when include_deleted is set" do
+    tenant_id = Generator.tenant.id.not_nil!
+    user_email = "steve@place.tech"
+
+    parent_booking = Booking.new(
+      booking_type: "desk",
+      asset_ids: ["desk1"],
+      booking_start: 1.day.from_now.at_beginning_of_day.to_unix + 9.hours.total_seconds.to_i64,
+      booking_end: 1.day.from_now.at_beginning_of_day.to_unix + 10.hours.total_seconds.to_i64,
+      timezone: "UTC",
+      user_email: PlaceOS::Model::Email.new(user_email),
+      user_name: "Steve",
+      booked_by_email: PlaceOS::Model::Email.new(user_email),
+      booked_by_name: "Steve",
+      tenant_id: tenant_id,
+      booked_by_id: "user-1234",
+      history: [] of Booking::History,
+      recurrence_type: Booking::Recurrence::DAILY,
+      recurrence_days: 0b1111111,
+      recurrence_interval: 1
+    ).save!
+
+    start_time = 1.day.from_now.at_beginning_of_day
+    end_time = start_time + 5.days
+    occurrences = parent_booking.calculate_daily(start_time, end_time).instances.map(&.to_unix)
+    occurrences.size.should eq 5
+
+    # an occurrence with its own override, checked in before the series was cancelled
+    checked_in_at = occurrences[1]
+    BookingInstance.new(
+      id: parent_booking.id.not_nil!,
+      instance_start: checked_in_at,
+      tenant_id: tenant_id,
+      booking_start: checked_in_at,
+      booking_end: checked_in_at + 1.hour.total_seconds.to_i64,
+      checked_in: true,
+      checked_in_at: checked_in_at,
+    ).save!
+
+    parent_booking.deleted = true
+    parent_booking.deleted_at = Time.utc.to_unix
+    parent_booking.save!
+
+    # without include_deleted the cancelled series stays a single, unexpanded row
+    hidden = Booking.expand_bookings!(start_time, end_time, [parent_booking], include_deleted: false).bookings
+    hidden.map(&.instance).should eq [nil]
+
+    expanded = Booking.expand_bookings!(start_time, end_time, [parent_booking], include_deleted: true).bookings
+    expanded.compact_map(&.instance).sort!.should eq occurrences
+    expanded.all?(&.deleted).should be_true
+    expanded.all? { |booking| booking.deleted_at == parent_booking.deleted_at }.should be_true
+
+    checked_in = expanded.find! { |booking| booking.instance == checked_in_at }
+    checked_in.checked_in.should be_true
+  end
+
+  it "hydrates an occurrence of a cancelled series as cancelled" do
+    tenant_id = Generator.tenant.id.not_nil!
+    user_email = "steve@place.tech"
+
+    parent_booking = Booking.new(
+      booking_type: "desk",
+      asset_ids: ["desk1"],
+      booking_start: 1.day.from_now.at_beginning_of_day.to_unix + 9.hours.total_seconds.to_i64,
+      booking_end: 1.day.from_now.at_beginning_of_day.to_unix + 10.hours.total_seconds.to_i64,
+      timezone: "UTC",
+      user_email: PlaceOS::Model::Email.new(user_email),
+      user_name: "Steve",
+      booked_by_email: PlaceOS::Model::Email.new(user_email),
+      booked_by_name: "Steve",
+      tenant_id: tenant_id,
+      booked_by_id: "user-1234",
+      history: [] of Booking::History,
+      recurrence_type: Booking::Recurrence::DAILY,
+      recurrence_days: 0b1111111,
+      recurrence_interval: 1
+    ).save!
+
+    starting = parent_booking.booking_start.not_nil!
+    override = BookingInstance.new(
+      id: parent_booking.id.not_nil!,
+      instance_start: starting,
+      tenant_id: tenant_id,
+      booking_start: starting,
+      booking_end: starting + 1.hour.total_seconds.to_i64,
+    ).save!
+    override.hydrate_booking(parent_booking).deleted.should be_false
+
+    parent_booking.deleted = true
+    parent_booking.deleted_at = Time.utc.to_unix
+    parent_booking.save!
+
+    hydrated = override.hydrate_booking(parent_booking)
+    hydrated.deleted.should be_true
+    hydrated.deleted_at.should eq parent_booking.deleted_at
+  end
+
   it "sanitizes extension_data string values before saving", tags: "extension_data_sanitization" do
     tenant_id = Generator.tenant.id
     user_email = "test@place.tech"
diff --git a/src/placeos-models/booking.cr b/src/placeos-models/booking.cr
index f88127b6..9ea6eaef 100644
--- a/src/placeos-models/booking.cr
+++ b/src/placeos-models/booking.cr
@@ -849,8 +849,11 @@ module PlaceOS::Model
     # Recurring booking expansion
     # ===
 
-    def recurring_booking? : Bool
-      !recurrence_type.none? && !deleted && !rejected && instance.nil?
+    # a series whose occurrences `expand_bookings!` generates. With
+    # `include_deleted`, a cancelled series counts too, and every one of its
+    # occurrences comes back cancelled.
+    def recurring_booking?(include_deleted : Bool = false) : Bool
+      !recurrence_type.none? && (include_deleted || !deleted) && !rejected && instance.nil?
     end
 
     def recurring_instance? : Bool
@@ -874,7 +877,7 @@ module PlaceOS::Model
       is_checked_out : Bool? = nil,
       include_deleted : Bool = false,
     ) : ExpansionDetails
-      recurring = parents.select(&.recurring_booking?)
+      recurring = parents.select(&.recurring_booking?(include_deleted))
       return ExpansionDetails.new(parents, 0, 0) if recurring.empty?
       parent_ids = recurring.compact_map(&.id)
       recurring.each { |booking| parents.delete booking }
diff --git a/src/placeos-models/booking_instance.cr b/src/placeos-models/booking_instance.cr
index 674d5afd..6fcaed8d 100644
--- a/src/placeos-models/booking_instance.cr
+++ b/src/placeos-models/booking_instance.cr
@@ -133,8 +133,11 @@ module PlaceOS::Model
       instance.checked_in = self.checked_in
       instance.checked_in_at = self.checked_in_at
       instance.checked_out_at = self.checked_out_at
-      instance.deleted = self.deleted
-      instance.deleted_at = self.deleted_at
+      # an occurrence of a cancelled series is cancelled, whatever its override says
+      if self.deleted || !main.deleted
+        instance.deleted = self.deleted
+        instance.deleted_at = self.deleted_at
+      end
       instance.process_state = self.process_state
       # A non-empty extension data object is a complete snapshot for this
       # occurrence and replaces the parent booking's extension data wholesale.