How GST Monthly Filing - Up to ₹50L works
Step 1: Share GST portal credentials
Timeline: Day 0
- You share read-only access.
- Ollvy CA reviews your filing history and becomes your dedicated CA.
Milestone: Ollvy CA assigned to your account
Step 2: Upload invoices and purchase data
Timeline: By 8th of month
- Upload sales invoices and purchase register by the 8th.
- Tally, Zoho, or any accounting software - export takes 2 minutes.
- Ollvy CA follows up if data is late.
Milestone: Data received for the month
Step 3: GSTR-1 filed by the 11th
Timeline: 9th-11th
- Ollvy CA files GSTR-1 with every B2B invoice, consumer sales above Rs. 2.5 lakh, and export invoices.
- Acknowledgement shared in the app.
Milestone: GSTR-1 filed and acknowledged
Step 4: GSTR-3B filed by the 20th
Timeline: 18th-20th
- Ollvy CA prepares GSTR-3B, calculates tax after deducting eligible ITC, and files.
- ITC verified against GSTR-2B before claiming - no blind claims.
- Mismatches caught before filing, not after a notice.
Milestone: GSTR-3B filed and acknowledged
Step 5: Monthly compliance report delivered
Timeline: 21st-25th
- What was filed, when, acknowledgement numbers, ITC claimed, and tax paid.
- Delivered to your Ollvy account every month.
Milestone: Monthly report delivered
Everything included in GST Monthly Filing - Up to ₹50L
GSTR-1 filed by the 11th
All B2B invoices, consumer sales above Rs. 2.5 lakh, and export invoices captured.
GSTR-3B filed by the 20th
Tax calculated, ITC deducted, payment challan generated. Ollvy CA reconciles before filing.
ITC verified against GSTR-2B every month
Credits checked against the government auto-generated statement before claiming.
Without Ollvy: Claim ITC without checking - get a reversal notice months later
With Ollvy: ITC verified against GSTR-2B before every filing
Monthly compliance report
What was filed, when, acknowledgement numbers, ITC claimed, and tax paid.
What could go wrong with GST Filing
Late filing: Rs. 50/day per return
- GSTR-3B late fee is Rs. 50/day, capped at Rs. 10,000 per return (up to Rs. 5 crore turnover).
- Plus 18% per annum interest on unpaid tax from the due date.
- One missed month blocks your next month's filing.
GSTR-1 and GSTR-3B mismatch
- If GSTR-1 and GSTR-3B figures don't match, the government system flags it automatically.
- Mismatches trigger notices 3-6 months later.
- Ollvy CA reconciles both returns before filing.
ITC claimed but vendor hasn't filed
- If your vendor hasn't filed their GSTR-1, the ITC you claim gets blocked.
- Shows up as a mismatch in GSTR-2B.
- Ollvy CA checks the GSTR-2B statement every month before claiming.
Frequently asked questions about GST Monthly Filing - Up to ₹50L
What does the monthly retainer cover?
GSTR-1 filed by the 11th, GSTR-3B filed by the 20th, ITC reconciliation against GSTR-2B, and a monthly compliance report.
Can I cancel anytime?
Yes. No minimum term. Cancel before the 1st of any month.
What data do I provide each month?
Sales invoices and purchase register by the 8th. Tally/Zoho export takes 2 minutes.
Why do prices vary by turnover?
Higher turnover = more invoices and more ITC reconciliation work. Base price covers up to Rs. 50 lakh.
GST Monthly Filing - Up to ₹50L
GSTR-1 by the 11th. GSTR-3B by the 20th. Every month. Handled by Ollvy CA.
Current cycle due: 20 May 2026
THE PROCESS
How Ollvy files your GST Filing
Step 1: Share GST portal credentials
You share read-only access. Ollvy CA reviews your filing history and becomes your dedicated CA.
Milestone: Ollvy CA assigned to your account
Step 2: Upload invoices and purchase data
Upload sales invoices and purchase register by the 8th. Tally, Zoho, or any accounting software - export takes 2 minutes. Ollvy CA follows up if data is late.
Milestone: Data received for the month
Step 3: GSTR-1 filed by the 11th
Ollvy CA files GSTR-1 with every B2B invoice, consumer sales above Rs. 2.5 lakh, and export invoices. Acknowledgement shared in the app.
Milestone: GSTR-1 filed and acknowledged
Step 4: GSTR-3B filed by the 20th
Ollvy CA prepares GSTR-3B, calculates tax after deducting eligible ITC, and files. ITC verified against GSTR-2B before claiming - no blind claims. Mismatches caught before filing, not after a notice.
Milestone: GSTR-3B filed and acknowledged
Step 5: Monthly compliance report delivered
What was filed, when, acknowledgement numbers, ITC claimed, and tax paid. Delivered to your Ollvy account every month.
Milestone: Monthly report delivered
Share GST portal credentials
- You share read-only access.
- Ollvy CA reviews your filing history and becomes your dedicated CA.
Ollvy CA assigned to your account
WHAT YOU GET
Everything included
GSTR-1 filed by the 11th
All B2B invoices, consumer sales above Rs. 2.5 lakh, and export invoices captured.GSTR-3B filed by the 20th
Tax calculated, ITC deducted, payment challan generated. Ollvy CA reconciles before filing.
ITC verified against GSTR-2B every month
Credits checked against the government auto-generated statement before claiming.Others
Claim ITC without checking - get a reversal notice months later
Ollvy
ITC verified against GSTR-2B before every filing
March 2025 Compliance Report
GSTR-1: Filed 10 Mar ✓
GSTR-3B: Filed 18 Mar ✓
Tax Paid: Rs. 45,230
Monthly compliance report
What was filed, when, acknowledgement numbers, ITC claimed, and tax paid.We file correctly.
Not just on time.
Others
Documents taken as-is. Query or rejection? Your problem.
Ollvy
Every document reviewed before filing. Mismatches and format issues caught upfront.
NEXT STEPS
What GST Filing unlocks
Services that become available or mandatory after completion.
Nothing else follows this one.
CUSTOMER REVIEWS
What customers say about GST Filing
Filed on time every month. I send the data, rest is done. Summary in the app tells me what was filed.
- Suresh Babu Reddy
Switched from a CA who missed the deadline. Not happened once here. No calls needed.
- Neha Sharma
They caught a Rs 1.2 lakh ITC mismatch between my GSTR-2B and what I had claimed. Fixed before the annual return. Would have been a demand notice.
- Girish Kulkarni
| Data / Document | Required For | Format |
|---|---|---|
| Sales invoices | Sales return | Excel, Tally export, or accounting software export |
| Purchase invoices / purchase register | Credit verification | Excel or accounting software export |
| GST portal credentials (read-only) | Filing | Shared once at onboarding; not required monthly |
| Bank statement (for large consumer sales) | Sales return (large consumer sales) | For verifying consumer sales above Rs. 2.5 lakh |
Your documents are encrypted, visible only to your assigned professional, and deleted 90 days after your order closes.
COMMON QUESTIONS
Frequently asked questions
Government Late Fees - GST Monthly Filing (per missed return)
| Return | Late Fee (With Transactions) | Late Fee (Zero Transactions) | Cap |
|---|---|---|---|
| Sales return (GSTR-1) | Rs. 50/day | Rs. 20/day | Rs. 10,000 per return (zero-transaction: Rs. 500) |
| Tax return (GSTR-3B) | Rs. 50/day | Rs. 20/day | Rs. 10,000 per return (zero-transaction: Rs. 500) |
| Interest on unpaid tax | 18% per year on outstanding amount | Not applicable for zero-transaction returns | Accrues daily - no cap |
| Both returns missed (1 month) | Rs. 100/day combined (both returns) | Rs. 40/day combined | Rs. 20,000 combined cap (zero-transaction: Rs. 1,000) |
RELATED GUIDES
Deep-dive guides on GST Filing
Written by the same Ollvy CA team. Linked sources, updated when regulations change.
₹2,999
₹4,999
Due: 20 May 2026