Timelines for Opting In or Out

Taxpayers can opt into or out of the QRMP scheme within a specific window during any quarter:

Opt-in Window: From the 1st day of the second month of the preceding quarter to the last day of the first month of the target quarter.

3. The Invoice Furnishing Facility (IFF) Explained

The Invoice Furnishing Facility (IFF) is an optional feature within the QRMP framework that enables quarterly taxpayers to upload B2B invoices during the first two months of a quarter.

Why was IFF Introduced?

Under standard quarterly filing, buyers cannot claim Input Tax Credit (ITC) until the seller files GSTR-1 at quarter-end. This lag often caused buyers to prefer monthly-filing suppliers. The IFF addresses this issue by allowing monthly credit reflection in the buyer’s GSTR-2B

Key IFF Specifications

• Applicability: Optional for Month 1 and Month 2 of every quarter.

• Deadline: 13th day of the following month (e.g., IFF for April is due by May 13th).

• Upload Limit: Cumulative invoice value up to ₹50 Lakhs per month.

• Scope: B2B tax invoices, credit notes, debit notes, and amendments.

• Non-resubmission: Invoices uploaded via IFF do not need to be resubmitted in the quarterly GSTR-1.

4. Tax Payment Mechanics under QRMP (PMT-06)

Although return filing occurs quarterly, tax payments must be remitted monthly for the first two months using Form GST PMT-06 by the 25th day of the following month. 

Option A: Fixed Sum Method (35% Rule)

The portal automatically generates a pre-filled challan based on previous filing patterns:

• If previous return was filed Quarterly: The challan generates 35% of the net cash tax paid in the previous quarter’s GSTR-3B.

• If previous return was filed Monthly: The challan generates 100% of the net cash tax paid in the final month of that quarterly period.

Key Benefit: Opting for the Fixed Sum Method waives interest for delayed payments during Months 1 and 2, provided the full generated amount is deposited by the 25th of the following month.

Option B: Self-Assessment Method

Taxpayers calculate their actual monthly liability by analyzing inward and outward transactions, taking into account available Input Tax Credit in GSTR-2B               

5. Comparative Analysis: QRMP vs. Monthly Filing vs. Composition Scheme

6. Detailed Step-by-Step Compliance Calendar

To avoid late fees and interest, businesses operating under the QRMP scheme should follow this operational cycle across each quarter:

Quarter Workflows (Example: Q1 – April to June)

• May 13: File IFF for April (Month 1 B2B invoices).

• May 25: Pay Month 1 tax using PMT-06.

• June 13: File IFF for May (Month 2 B2B invoices).

• June 25: Pay Month 2 tax using PMT-06.

• July 13: File complete Quarterly GSTR-1 for April-June (including remaining B2B, B2C, and amendment data).

• July 22/24: File Quarterly GSTR-3B, reconcile total quarterly tax liability, adjust pre-paid Month 1 and Month 2 taxes, and settle any remaining balance.

7. Numerical Case Study & Calculations

Consider TechCorp Solutions, an Indian IT hardware vendor under the QRMP Scheme for Q1 (April – June).

Month 1: April

• B2B Taxable Sales: ₹20,000,000 | Output Tax (18% GST): ₹3,600,000

• B2C Taxable Sales: ₹5,000,000 | Output Tax (18% GST): ₹900,000

• Available ITC in GSTR-2B: ₹3,800,000

Actions Taken:

1. IFF Upload (by May 13): Uploads B2B invoices up to the ₹50 Lakh turnover cap.

2. Payment Calculation (Self-Assessment Method):

   $$\text{Total Output Tax} = 3,600,000 + 900,000 = 4,500,000$$
   $$\text{Net Tax Payable in Cash} = 4,500,000 – 3,800,000 = \mathbf{700,000}$$

3. Remittance (by May 25): Deposits ₹7,00,000 via Form GST PMT-06.

Month 2: May

• B2B Taxable Sales: ₹15,000,000 | Output Tax: ₹2,700,000

• B2C Taxable Sales: ₹3,000,000 | Output Tax: ₹540,000

• Available ITC in GSTR-2B: ₹3,100,000

Actions Taken:

1. IFF Upload (by June 13): Uploads all B2B invoices.

2. Payment Calculation (Fixed Sum Method Chosen):

   • Previous Quarter Net Cash Tax Paid: ₹2,100,000.

   • System Generates 35% Challan: $2,100,000 \times 0.35 = \mathbf{735,000}$.

3. Remittance (by June 25): Deposits ₹7,35,000 via Form GST PMT-06.

Month 3 & Final Quarter Filing (June & Reconciliation)

• June Total Output Tax Liability: ₹3,000,000

• June Total Available ITC: ₹2,200,000

Final Reconciliation for Q1 (April + May + June)

• Final Filing (July 22/24): TechCorp files Quarterly GSTR-3B and pays the remaining cash balance of ₹2,05,000.

8. Common Pitfalls, Late Fees & Interest Provisions

Interest Application (Section 50 )

Late Fees Mechanics

• IFF Delay: No direct late fee is levied for missing the 13th IFF deadline. However, missing it prevents B2B invoice uploads for that month, forcing all invoices into the quarterly GSTR-1 and delaying buyer ITC.

• GSTR-3B Delay: Standard late fees under Section 47 apply:

  • Nil Return: ₹20 per day (₹10 CGST + ₹10 SGST).

  • Taxable Return: ₹50 per day (₹25 CGST + ₹25 SGST), capped at applicable statutory limits.

9. Strategic Best Practices for MSMEs

1. Evaluate Buyer Expectations: If major clients demand monthly ITC reflection, consistently utilize the IFF facility by the 13th of every month.

2. Choose the Right Payment Method: Use the Fixed Sum Method during high-growth quarters to optimize interest protection. Use the Self-Assessment Method during months with lower sales or high capital expenditure to prevent overpaying tax in advance.

3. Maintain Monthly Reconciliations: Perform monthly ITC reconciliations with GSTR-2B even though GSTR-3B is filed quarterly. This prevents end-of-quarter tax discrepancies.

4. Monitor the ₹50 Lakh IFF Ceiling: Track cumulative monthly invoice values to ensure high-value B2B invoices are prioritized within the ₹50 Lakh monthly IFF limit.

Summary Conclusion

The QRMP scheme with IFF offers a balanced approach to GST compliance. It cuts return filing frequency by two-thirds while maintaining smooth ITC flow and flexible cash management for growing businesses. By establishing clear monthly routines for IFF uploads and PMT-06 payments, enterprises can streamline compliance and maintain solid vendor relationships.