diff --git a/supabase/migrations/20241011145739_add_is_username_taken_function.sql b/supabase/migrations/20241011145739_add_is_username_taken_function.sql
new file mode 100644
index 00000000..bef9a0b6
--- /dev/null
+++ b/supabase/migrations/20241011145739_add_is_username_taken_function.sql
@@ -0,0 +1,14 @@
+CREATE OR REPLACE FUNCTION is_username_taken(given_username text)
+RETURNS BOOLEAN AS $$
+DECLARE
+    is_username_taken BOOLEAN;
+BEGIN
+    -- Check if the username exists in the profile table
+    SELECT EXISTS(SELECT 1 FROM public.profiles WHERE username = given_username) INTO is_username_taken;
+    
+    -- Return the result
+    RETURN is_username_taken;
+END;
+$$
+LANGUAGE plpgsql
+SECURITY DEFINER;