Fee / GST mismatch

Gateway fee/GST deducted incorrectly (open), ₹176.22. Rule stage1.fee_and_gst_on_fee; 3 record(s).

₹176.22Amount at riskopen13 Oct 2026payment pay_avwCigNuHHQWOY

Explanation

Generated from the read-only evidence below. It never changes a match or a record.

Deterministic template · LLM not used

GST was computed on the payment amount instead of on the gateway fee

Expected fee ₹19.98 + GST ₹3.60; the settlement deducted fee ₹19.98 + GST ₹179.82.

Recommended action

Raise the over-deduction with the gateway and book a receivable for the excess.

Requires human reviewConfidence 90%· Cites 3 evidence ids, all verified to be in the bundle

Draft correcting entry

Excess gateway fee/GST deducted for pay_avwCigNuHHQWOY, recoverable from Gateway

Pending approval · never auto-posted

Account	Debit	Credit
Receivable from Gateway	₹176.22
GST Input Credit		₹176.22
Total	₹176.22	₹176.22

Amounts come from the deterministic engine and always balance. Drafts are stored as pending_approval and are never posted to the ledger.

Evidence records

Read-only source records involved in this exception.

Paymentpay_avwCigNuHHQWOY

order id: order_3EAEUZeEum7iqm
amount: ₹999.00
method: card
status: captured
captured at: 2026-10-11T23:21:27+05:30

Settlement itemsitm_0002743

settlement id: setl_f5ouEMOPDnFCc5
entity type: payment
entity id: pay_avwCigNuHHQWOY
gross: ₹999.00
fee: ₹19.98
gst: ₹179.82
net: ₹799.20

Settlementsetl_f5ouEMOPDnFCc5

utr: AXISN26286045671
amount: ₹42,795.90
settled at: 2026-10-13
created at: 2026-10-13T09:04:00+05:30
item count: 17
fee total: ₹880.22
gst total: ₹334.69

Rule trace

The deterministic rule that fired and what it saw.

{
  "rule": "stage1.fee_and_gst_on_fee",
  "fee_bps": 200,
  "gst_bps": 1800,
  "expected": {
    "fee_paise": 1998,
    "fee_inr": "₹19.98",
    "gst_paise": 360,
    "gst_inr": "₹3.60"
  },
  "actual": {
    "fee_paise": 1998,
    "fee_inr": "₹19.98",
    "gst_paise": 17982,
    "gst_inr": "₹179.82",
    "net_paise": 79920,
    "net_inr": "₹799.20"
  },
  "gst_matches_wrong_base": true,
  "arithmetic_ok": true
}

Audit history

Append-only. Actor: system, llm or human.

systeminvestigation2026-11-03 10:31:04 UTC
source=deterministic_fallback · fallback_reason=no_provider · review_policy_applied=false
systemjournal draft2026-11-03 10:31:04 UTC
exception_id=5ef55c11-025d-4449-a541-a222d96a76e7 · source=deterministic_fallback · fallback_reason=no_provider · total_paise=17622