Fee / GST mismatch

Gateway fee/GST deducted incorrectly (open), ₹264.69. Rule stage1.fee_and_gst_on_fee; 3 record(s).

₹264.69Amount at riskopen21 Oct 2026payment pay_dyucipxmg8ZdAU

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 ₹28.48 + GST ₹5.13; the settlement deducted fee ₹28.48 + GST ₹269.82.

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_dyucipxmg8ZdAU, recoverable from Gateway

Pending approval · never auto-posted

Account	Debit	Credit
Receivable from Gateway	₹264.69
GST Input Credit		₹264.69
Total	₹264.69	₹264.69

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_dyucipxmg8ZdAU

order id: order_3Fmk2C8gIKjsXu
amount: ₹1,499.00
method: wallet
status: captured
captured at: 2026-10-19T08:21:31+05:30

Settlement itemsitm_0003701

settlement id: setl_wC0Tt3xJZZSSYI
entity type: payment
entity id: pay_dyucipxmg8ZdAU
gross: ₹1,499.00
fee: ₹28.48
gst: ₹269.82
net: ₹1,200.70

Settlementsetl_wC0Tt3xJZZSSYI

utr: ICICN26294071586
amount: ₹44,868.47
settled at: 2026-10-21
created at: 2026-10-21T09:11:00+05:30
item count: 20
fee total: ₹877.22
gst total: ₹422.59

Rule trace

The deterministic rule that fired and what it saw.

{
  "rule": "stage1.fee_and_gst_on_fee",
  "fee_bps": 190,
  "gst_bps": 1800,
  "expected": {
    "fee_paise": 2848,
    "fee_inr": "₹28.48",
    "gst_paise": 513,
    "gst_inr": "₹5.13"
  },
  "actual": {
    "fee_paise": 2848,
    "fee_inr": "₹28.48",
    "gst_paise": 26982,
    "gst_inr": "₹269.82",
    "net_paise": 120070,
    "net_inr": "₹1,200.70"
  },
  "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=d7917c7f-3ae3-4b02-8c03-5d4dc37635b8 · source=deterministic_fallback · fallback_reason=no_provider · total_paise=26469