Fee / GST mismatch

Gateway fee/GST deducted incorrectly (open), ₹1,080.91. Rule stage1.fee_and_gst_on_fee; 3 record(s).

₹1,080.91Amount at riskopen19 Oct 2026payment pay_MuqAezf1KmpSsD

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 ₹106.96 + GST ₹19.25; the settlement deducted fee ₹106.96 + GST ₹1,100.16.

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_MuqAezf1KmpSsD, recoverable from Gateway

Pending approval · never auto-posted

Account	Debit	Credit
Receivable from Gateway	₹1,080.91
GST Input Credit		₹1,080.91
Total	₹1,080.91	₹1,080.91

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_MuqAezf1KmpSsD

order id: order_pvLoHp3cAkqOhh
amount: ₹6,112.00
method: upi
status: captured
captured at: 2026-10-18T18:34:19+05:30

Settlement itemsitm_0003467

settlement id: setl_FeOSCaqUI08dLE
entity type: payment
entity id: pay_MuqAezf1KmpSsD
gross: ₹6,112.00
fee: ₹106.96
gst: ₹1,100.16
net: ₹4,904.88

Settlementsetl_FeOSCaqUI08dLE

utr: AXISN26292318257
amount: ₹54,030.22
settled at: 2026-10-19
created at: 2026-10-19T09:07:00+05:30
item count: 17
fee total: ₹984.78
gst total: ₹1,258.18

Rule trace

The deterministic rule that fired and what it saw.

{
  "rule": "stage1.fee_and_gst_on_fee",
  "fee_bps": 175,
  "gst_bps": 1800,
  "expected": {
    "fee_paise": 10696,
    "fee_inr": "₹106.96",
    "gst_paise": 1925,
    "gst_inr": "₹19.25"
  },
  "actual": {
    "fee_paise": 10696,
    "fee_inr": "₹106.96",
    "gst_paise": 110016,
    "gst_inr": "₹1,100.16",
    "net_paise": 490488,
    "net_inr": "₹4,904.88"
  },
  "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=cacbe809-86d6-44fa-9731-ed419ed0b753 · source=deterministic_fallback · fallback_reason=no_provider · total_paise=108091