diff --git a/scripts/013_add_last_paid_at.sql b/scripts/013_add_last_paid_at.sql
new file mode 100644
index 0000000..af1c4de
--- /dev/null
+++ b/scripts/013_add_last_paid_at.sql
@@ -0,0 +1,10 @@
+-- =============================================================================
+-- Migration 013: Add space_members.last_paid_at
+-- =============================================================================
+-- Adds last_paid_at column to space_members.
+-- This column is written by importMembers() and linkPaymentToMember() in
+-- lib/actions.ts. The column last_payment_at already existed as a legacy
+-- field; last_paid_at is the canonical name used by the application code.
+-- =============================================================================
+
+ALTER TABLE public.space_members ADD COLUMN IF NOT EXISTS last_paid_at timestamptz;