IFF due dates for 2026-27 (QRMP)
The Invoice Furnishing Facility lets quarterly filers upload their business-to-business invoices for the first two months of a quarter, so buyers get input tax credit that month instead of waiting for the quarterly GSTR-1.
- Who it applies to
- QRMP filers who sell to other GST-registered businesses. It is optional, and limited to ₹50 lakh of invoices a month.
- When
- The 13th of the next month, for the first and second month of each quarter.
- How often
- Every month
- If you skip it
- No late fee, because it is optional. The invoices simply go into your quarterly GSTR-1, and your buyers wait longer for their credit.
Every IFF date in this calendar
| For the period | Due date | For | Status |
|---|---|---|---|
| April 2026 | 13 May 2026Wednesday | Quarterly (QRMP) filers | |
| May 2026 | 13 June 2026Saturday | Quarterly (QRMP) filers | |
| July 2026 | 13 August 2026Thursday | Quarterly (QRMP) filers | |
| August 2026 | 13 September 2026Sunday | Quarterly (QRMP) filers | |
| October 2026 | 13 November 2026Friday | Quarterly (QRMP) filers | |
| November 2026 | 13 December 2026Sunday | Quarterly (QRMP) filers | |
| January 2027 | 13 February 2027Saturday | Quarterly (QRMP) filers | |
| February 2027 | 13 March 2027Saturday | Quarterly (QRMP) filers | |
| April 2027 | 13 May 2027Thursday | Quarterly (QRMP) filers | |
| May 2027 | 13 June 2027Sunday | Quarterly (QRMP) filers |
What to keep ready
- B2B sales invoices for the month
- Debit and credit notes issued to registered buyers
Frequently asked questions
When is IFF due in 2026-27?
The 13th of the next month, for the first and second month of each quarter.
Who does IFF apply to?
QRMP filers who sell to other GST-registered businesses. It is optional, and limited to ₹50 lakh of invoices a month.
What happens if I miss IFF?
No late fee, because it is optional. The invoices simply go into your quarterly GSTR-1, and your buyers wait longer for their credit.
Shown on the calendar for: quarterly (qrmp) filers.
Get help with this
Related services
From the blog
- GuidesGSTR-9 Annual Return for FY 2025-26: Due Date, Who Must File and Late FeesGSTR-9 for FY 2025-26 is due 31 December 2026. Who must file, the ₹2 crore exemption, when GSTR-9C applies, late fees and a reconciliation checklist.
- Comparisons8 Best CA Firms & Tax Consultants in Jodhpur (2026): Fees, Google Reviews & How to ChooseCompare 8 CA firms and tax consultants in Jodhpur on services, pricing and Google ratings, plus a checklist for choosing one for ITR, GST and audits.
- GuidesMissed the ITR Deadline? How to File a Belated Return Before 31 December 2026Missed the 31 July or 31 August deadline for AY 2026-27? File a belated return by 31 December 2026. Late fee, regime rules, losses and the steps, explained.
Talk to a Jodhpur tax expert today
Send your documents on WhatsApp or book a free 15-minute call. We reply the same working day.