diff --git a/nexa_coa_setup/scripts/reclass_historical_411000.py b/nexa_coa_setup/scripts/reclass_historical_411000.py
new file mode 100644
index 00000000..09989eda
--- /dev/null
+++ b/nexa_coa_setup/scripts/reclass_historical_411000.py
@@ -0,0 +1,62 @@
+"""Reclassify all 200 lines on legacy 411000 to proper Nexa accounts based on
+keyword rules. Run on prod via odoo-shell."""
+
+acct_4030 = env['account.account'].search([('code', '=', '4030')], limit=1).id  # Support & Maintenance
+acct_4230 = env['account.account'].search([('code', '=', '4230')], limit=1).id  # Tech Support hourly
+acct_4320 = env['account.account'].search([('code', '=', '4320')], limit=1).id  # Hardware Resale
+legacy_acct = env['account.account'].with_context(active_test=False).search([('code', '=', '411000')], limit=1).id
+
+# (priority, regex pattern (case-insensitive), target_account_id, label)
+import re
+RULES = [
+    ('Computer & Server Maintenance',     acct_4030, 'Support & Maintenance'),
+    ('Server Backup & Monitoring',         acct_4030, 'Support & Maintenance'),
+    ('Membership Fee',                     acct_4030, 'Support & Maintenance (membership)'),
+    ('[CUSTCOMP]',                         acct_4320, 'Hardware Resale (custom PC)'),
+    ('Custom Computer',                    acct_4320, 'Hardware Resale (custom PC)'),
+    ('ustom Computer',                     acct_4320, 'Hardware Resale (typo'),  # the 'ustom Computer' typo entry
+    ('HP Desk Computer',                   acct_4320, 'Hardware Resale (HP desktop)'),
+    ('Server 2019',                        acct_4320, 'Hardware Resale (Windows Server license)'),
+    ('Server Rack',                        acct_4320, 'Hardware Resale (rack)'),
+    ('16 Port POE',                        acct_4320, 'Hardware Resale (switch)'),
+    ('CPU:',                               acct_4320, 'Hardware Resale (custom build)'),
+    ('Cleaning Supplies',                  acct_4320, 'Hardware Resale (consumables)'),
+    ('ONSITE-',                            acct_4230, 'Tech Support — onsite'),
+    ('OFFSITE-',                           acct_4230, 'Tech Support — offsite'),
+    ('Onsite Sever Setup',                 acct_4230, 'Tech Support — setup'),
+    ('Server Setup',                       acct_4230, 'Tech Support — setup'),
+    ('Wiring for',                         acct_4230, 'Tech Support — installation'),
+]
+
+# Find all lines on 411000
+env.cr.execute("""
+    SELECT aml.id, aml.name, aml.credit
+    FROM account_move_line aml
+    JOIN account_move m ON m.id = aml.move_id
+    WHERE aml.account_id = %s AND m.move_type = 'out_invoice'
+""", (legacy_acct,))
+lines = env.cr.fetchall()
+
+bucket = {acct_4030: 0, acct_4230: 0, acct_4320: 0}
+unmatched = []
+for line_id, line_name, credit in lines:
+    name = (line_name or '').strip()
+    matched = False
+    for pattern, target, label in RULES:
+        if pattern.lower() in name.lower():
+            env.cr.execute("UPDATE account_move_line SET account_id = %s WHERE id = %s",
+                           (target, line_id))
+            bucket[target] += 1
+            matched = True
+            break
+    if not matched:
+        unmatched.append((line_id, name[:60], credit))
+
+print(f"Reclassified {bucket[acct_4030]} lines -> 4030 Support & Maintenance")
+print(f"Reclassified {bucket[acct_4230]} lines -> 4230 Tech Support — Hourly")
+print(f"Reclassified {bucket[acct_4320]} lines -> 4320 Hardware Resale")
+print(f"Unmatched: {len(unmatched)}")
+for u in unmatched[:20]:
+    print(f"  id={u[0]} amount={u[2]} name={u[1]!r}")
+env.cr.commit()
+print(">>> done <<<")