Businesses under the Quarterly Return Monthly Payment (QRMP) scheme do not have to wait until quarter-end to make selected B2B invoice details available to customers. The Invoice Furnishing Facility (IFF) is an optional mechanism for the first two months of a quarter that helps quarterly filers pass invoice information into the recipient's GST data earlier.
The GST Portal's official QRMP FAQ describes IFF as an optional facility under rule 59(2) for quarterly taxpayers who want to pass input tax credit information to recipients in the first two months of a quarter. CBIC's Circular 143/13/2020-GST explains the operating framework.
IFF versus quarterly GSTR-1
IFF is not a separate monthly return that every QRMP taxpayer must file. It is an optional invoice-furnishing facility for month 1 and month 2 of a quarter. The regular quarterly GSTR-1 remains the outward-supply statement for the quarter.
A taxpayer may therefore use IFF for selected eligible invoice details in the first two months and furnish the remaining quarterly details in GSTR-1. Alternatively, a taxpayer can skip IFF entirely and furnish the quarter's outward-supply details in GSTR-1.
Why would a business use IFF?
The main commercial reason is customer ITC visibility. A B2B customer may not want to wait until the quarterly GSTR-1 cycle for supplier invoice data. The GST Portal's GSTR-2B FAQ confirms that B2B documents filed by suppliers through GSTR-1 or IFF feed the recipient's GSTR-2B framework.
For a QRMP supplier with significant B2B customers, timely IFF filing can therefore reduce avoidable reconciliation queries. A predominantly B2C business may have less reason to use it because IFF is designed around specified registered-recipient invoice details.
Which months can use IFF?
IFF is available for the first two months of a quarter, commonly called M1 and M2. The third month is handled through the quarterly GSTR-1. The GST Portal FAQ states that IFF for a month expires after the 13th of the following month.
For example, in an April-June quarter, eligible April invoice details can be furnished through April IFF and eligible May details through May IFF. June is the third month, so the taxpayer completes the quarter through GSTR-1 rather than a June IFF.
Do invoices filed in IFF need to be repeated in GSTR-1?
No. CBIC Circular 143/13/2020-GST states that invoice details furnished through IFF in the first two months are not required to be furnished again in the quarterly GSTR-1. Re-entering them creates an unnecessary duplicate risk.
A useful control is to tag invoices in the accounting or return-preparation system as 'filed in IFF' once filing is completed, then reconcile those records before preparing the quarter-end GSTR-1.
Practical decision framework
- Confirm QRMP status: IFF is relevant to taxpayers filing GSTR-1 quarterly under the scheme.
- Identify registered customers: prioritise eligible B2B documents where earlier reflection matters to the recipient.
- Choose whether IFF adds value: it is optional, so do not create monthly work where customer ITC timing does not justify it.
- Track the 13th: the facility for a month expires after the prescribed window.
- Mark filed documents: prevent the same invoice or credit/debit note from being furnished again in quarterly GSTR-1.
- Reconcile before quarter-end: combine IFF-filed records with the remaining outward-supply data to ensure the quarterly statement is complete.
Example
Suppose a consulting firm under QRMP raises several B2B invoices in April and its corporate customers want timely GST credit visibility. The firm can use April IFF for eligible invoice details rather than waiting for the April-June GSTR-1. When preparing the quarterly GSTR-1, it should not re-enter the April invoices already filed through IFF; it should report the remaining applicable quarterly details.
Common mistakes
- Treating IFF as compulsory for every QRMP taxpayer.
- Trying to use IFF for the third month of the quarter.
- Missing the monthly IFF window and assuming it can be filed indefinitely later.
- Duplicating IFF-filed invoices in quarterly GSTR-1.
- Using IFF without a customer-credit or reconciliation reason, adding work without a clear benefit.
Practical takeaway
IFF is best understood as an optional timing tool, not another compulsory return. QRMP taxpayers can use it in the first two months of a quarter to furnish specified invoice details earlier for recipients, while the quarterly GSTR-1 completes the outward-supply reporting cycle. The key controls are to use IFF only where it adds value, meet the monthly window, and never duplicate already-filed IFF records in GSTR-1.
