My invoice number format doesn't match what the supplier filed — will Tally still match it?
Not automatically. TallyPrime's GSTR-2B Reconciliation report shows a document as "Mismatched" when GST details such as the tax amount or the voucher number differ between your books and the portal — and a formatting difference like SALES/25-26/1 in your books versus SALES25261 on the portal counts as a voucher number difference. TallyPrime does have a separate "Potential Matches (Excluding Doc No.)" view for exactly this case, which surfaces documents that otherwise match but differ only on the document number, so you can confirm and match them manually rather than treat them as a genuine discrepancy.
What TallyPrime's GSTR-2B statuses mean
TallyHelp's own documentation for the GSTR-2B Reconciliation report lists "Mismatched" as covering "transactions where GST details such as Tax Amount or voucher number differ between your books and the portal" — a pure formatting difference in the invoice number falls under this, even when the underlying invoice is the same one.
The same report has a "Potential Matches (Excluding Doc No.)" view, described using an example like MC/233 in your books versus MC/2333 on the portal — documents that agree on the other matching details but differ on the document number specifically, so you can review and confirm the match without it staying stuck in the mismatch list indefinitely.
How to clear it
Work the mismatch from the reconciliation report rather than editing the portal data, which you can't change from here.
- Open the GSTR-2B Reconciliation report and filter to Mismatched or Potential Matches (Excluding Doc No.).
- Compare the two invoice numbers side by side to confirm they refer to the same document, just formatted differently.
- Confirm the match manually in that view rather than treating it as an outstanding discrepancy.
- Where the difference is a habit on your own side — a missing slash or leading zero you always add — standardise the format going forward so fewer documents land in this list.
FAQs
Which version of TallyPrime has this reconciliation report?
TallyHelp's documentation for the GSTR-2B Reconciliation report and its statuses covers Release 5.0 onward, with some feature differences noted for TallyPrime 4.1.
What does TallyPrime 6.1's IMS add on top of this?
TallyPrime 6.1's Invoice Management System gives a structured view for reviewing invoices flagged as missing, value-different, duplicate or incorrect, and making ITC eligibility decisions against them, rather than working through a spreadsheet by hand.
Is a mismatch always my own data-entry error?
No — it can equally come from the supplier's side, such as incorrect details, delayed filing, or an amended value, which is why the reconciliation report separates "Mismatched" from "Available Only on Portal" and other statuses rather than lumping every discrepancy together.
Related guides
Sources checked
- TallyHelp — GSTR-2B Reconciliation statuses in TallyPrime
- Novatechnosys — GSTR-2B mismatch fix in TallyPrime 6.1 (IMS/ITC reconciliation)
Last reviewed 2026-09-23
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