Under which rule is GSTR-1 blocked for non-filing of GSTR-3B?

GSTR-1 and IFF filing are blocked under Rule 59(6) of the CGST Rules if a taxpayer fails to file GSTR-3B for the preceding tax period.

Do I need to submit an application to a tax officer to unblock GSTR-1?

No. Unblocking is 100% automated. The GST system automatically restores your GSTR-1/IFF filing facility within a few hours of successfully submitting the pending GSTR-3B return.

Does unresponding to a Form DRC-01B notice block GSTR-1 filing?

Yes. If you receive a Form DRC-01B intimation regarding a GSTR-1 vs GSTR-3B tax liability mismatch and fail to respond within 7 days, your GSTR-1 filing facility for subsequent periods will be blocked.

How does TrulyInvoice help prevent GSTR-3B tax liability mismatches?

TrulyInvoice AI extracts line-item values, HSN codes, and tax rates from vendor bills, auto-posting verified F9 Purchase Vouchers directly into Tally Prime via Port 9000 local sync in 15 seconds.

Blocking of GSTR-1 Return for Non-Filing of GSTR-3B (Rule 59(6) SOP)

Quick Summary: Why Is My GSTR-1 Blocked on the GST Portal?

Under Rule 59(6) of the CGST Rules, the GST portal automatically restricts GSTR-1 and IFF filing if you fail to submit your GSTR-3B for the preceding tax period (monthly or quarterly). To unblock GSTR-1, simply file the pending GSTR-3B return; the system automatically restores filing access within a few hours.

Legal Rule: Governed by Rule 59(6) of the CGST Rules, 2017.
Monthly Filers: Blocked if preceding month's GSTR-3B is un-filed.
Quarterly Filers (QRMP): Blocked if preceding quarter's GSTR-3B is un-filed.
DRC-01B Linkage: Unanswered DRC-01B notices (7-day window) also block GSTR-1.

1. Rule 59(6) Legal Mandate Explained

To prevent tax leakage and ensure suppliers deposit tax collected from buyers, the CBIC enforces Rule 59(6) of the CGST Rules.

Under Rule 59(6), a registered taxpayer is barred from furnishing outward sales supplies in GSTR-1 or using the Invoice Furnishing Facility (IFF) if they have failed to file Form GSTR-3B for the preceding tax period.

2. GSTR-1 Blocking Conditions for Monthly & QRMP Taxpayers

Filing Frequency	Blocking Trigger Condition	Impact on Outward Sales & Recipients
Monthly Taxpayers	Non-filing of preceding month's GSTR-3B	GSTR-1 blocked; buyers cannot see ITC in IMS/GSTR-2B.
QRMP Scheme Taxpayers	Non-filing of preceding quarter's GSTR-3B	IFF & GSTR-1 blocked for subsequent quarter.
DRC-01B Notice Default	Failure to reply to DRC-01B within 7 days	GSTR-1 blocked; tax recovery initiated under Sec 79.

3. Step-by-Step SOP to Unblock GSTR-1

Identify Pending Returns: Log in to www.gst.gov.in and check Return Dashboard to locate pending GSTR-3B periods.
File Pending GSTR-3B: Calculate tax liability, pay net cash via PMT-06/Challan, and submit GSTR-3B with EVC or DSC.
Automatic Restoration: The GST portal automatically runs background system checks and unblocks GSTR-1/IFF within 2 to 4 hours. No officer intervention is needed.

Eliminate Purchase Voucher Mismatches in Tally Prime

Ensure 100% accurate purchase entries to file GSTR-3B on time every month.

GSTR-3B filing delays happen when accountants spend hours manually typing vendor bills into Tally Prime. Delayed GSTR-3B filings trigger Rule 59(6) GSTR-1 blocking.

TrulyInvoice AI Solution: Upload vendor PDF bills or WhatsApp scans. AI auto-extracts line items, HSN codes, and GST rates, posting verified F9 Purchase Vouchers directly to Tally Prime in 15 seconds via Port 9000 local sync.