Step 01
IRNs pulled from GSTN
Per GSTIN, all IRNs and e-way bills issued for the period are pulled from the GSTN nightly via the authorised GSP.
GST E-Invoicing Software | E-Invoice Reconciliation
IRNs from anywhere, reconciled against your books nightly.
IRNs and e-way bills generated outside OneFinOps (legacy system, customer portal, manual GSTN portal entry) pulled from the GSTN. Reconciled against your invoice book nightly. Mismatches surface; books align with what is on the GSTN.
How it works
From GSTN to your books, in one direction.
Step 02
Match against books
Each IRN matched against the corresponding invoice in your book on amount, date and customer GSTIN.
Step 03
Mismatches surface
Missing-in-books IRNs (issued outside OneFinOps but not posted), missing-in-GSTN IRNs (posted in books but not e-invoiced) and amount mismatches surface for action.
Step 04
Sync direction
Books align with GSTN where the GSTN is authoritative (post-IRN amount); GSTN is updated where the books are authoritative (cancellation, CDNR).
What the system does
Capability, input, output.
| Capability | Input | Output |
|---|---|---|
| GSTN IRN pull | Per-GSTIN, per-period | All IRNs + EWBs issued |
| Book match | IRN + invoice book | Match status per IRN |
| Missing-in-books | IRN without matching invoice | Posting suggestion |
| Missing-in-GSTN | Invoice eligible for e-invoicing without IRN | IRN generation suggestion |
| Audit pack | Period IRN + book reconciliation | Hash-verified evidence |
-
GSTN IRN pull
- Input
- Per-GSTIN, per-period
- Output
- All IRNs + EWBs issued
-
Book match
- Input
- IRN + invoice book
- Output
- Match status per IRN
-
Missing-in-books
- Input
- IRN without matching invoice
- Output
- Posting suggestion
-
Missing-in-GSTN
- Input
- Invoice eligible for e-invoicing without IRN
- Output
- IRN generation suggestion
-
Audit pack
- Input
- Period IRN + book reconciliation
- Output
- Hash-verified evidence
Compliance + integrations
Books reflect what GSTN sees.
For e-invoicing-eligible taxpayers, the GSTN view of issued invoices is authoritative for B2B. The system keeps your books aligned with that view.
Regulations we work within
-
Rule 48(4), CGST Rules
IRN required for B2B invoices for eligible taxpayers; books must reflect.
Connects to
- GSTN IRN + EWB pull
- Tally Prime Books sync
E-Invoice Reconciliation FAQ
What buyers ask.
Why would IRNs be issued outside OneFinOps?
Common cases: legacy ERP not yet integrated, customer portal that uploads invoices on behalf of supplier, manual GSTN portal entry by a back-office team. The recon catches all of these.
Missing-in-books IRN. Can we auto-post the invoice?
Yes. The system can auto-post the missing invoice from the GSTN data (invoice number, customer, amount, tax components). Posting goes through the standard approval flow.
Missing-in-GSTN. How does the system flag it?
An invoice eligible for e-invoicing (B2B, customer GSTIN present, taxpayer above turnover threshold) without an IRN is flagged. The system suggests generating an IRN at the original invoice date.
More in GST E-Invoicing Software
Related features
IRN Generation
Auto-generated when you create a B2B invoice. Validation, signing and IRN return in seconds.
See IRN GenerationE-Invoice API
Programmatic IRN generation for ERP-driven workflows. REST + webhooks.
See E-Invoice APIMulti-GSTIN Management
Per-GSTIN settings, eligibility, sign-off. State-wise EWB thresholds.
See Multi-GSTIN Management
Reconcile last quarter's IRNs against your books.
Connect one GSTIN, free. The system pulls every IRN issued for the GSTIN; the recon runs against your invoice book overnight. Mismatches surface by morning.