Monthly GST Retainership, Managed End-to-End by a Dedicated CA Team
Hand over your entire monthly GST compliance to a dedicated CA team on a fixed retainer — GSTR-1 and GSTR-3B filed on time, GSTR-2B ITC reconciled, e-invoicing, e-way bills, RCM and notices tracked. You run the business; we run the returns.
Get Expert Help
Expert calls back during business hours
What Is Monthly GST Retainership?
A quick, plain-language explanation before the details.
A Monthly GST Retainership is a managed service where a CA team handles all your routine GST compliance — filing returns, reconciling ITC and tracking deadlines — for a fixed monthly fee, so you never touch the portal.
It is not a statutory form but a professional engagement covering obligations under the CGST Act, 2017 — periodic return filing (GSTR-1 / GSTR-3B or CMP-08), tax payment, GSTR-2B ITC reconciliation and, where applicable, the annual GSTR-9 / 9C.
All filings are made on the official GST portal (gst.gov.in), administered by the Goods and Services Tax Network (GSTN) under the Central Board of Indirect Taxes and Customs (CBIC).
A retainer is an ongoing engagement that continues cycle after cycle for as long as you need it — there is no expiry or single deadline, unlike a one-time filing.
Quick Facts
Is This Service Right for You?
Ideal for
- SMEs & growing businesses wanting to outsource routine GST work
- E-commerce sellers juggling TCS and high monthly invoice volume
- Traders & manufacturers needing tight monthly ITC reconciliation
- Service providers & agencies who would rather bill clients than track due dates
- Distributors & logistics firms with high e-way bill / e-invoice volume
- Multi-location / multi-GSTIN companies wanting one team across all states
You may need this if
- You keep missing GSTR-1 or GSTR-3B due dates and paying late fees
- Your ITC is under-claimed because GSTR-2B is never reconciled properly
- You have no in-house accountant, or want to replace an unreliable one
- You file across several state GSTINs and want one team managing all of them
- You need ongoing e-invoicing, e-way bill and RCM support, not one-off help
- You want predictable monthly compliance cost instead of per-return surprises
Not sure if you need this?
Talk to an Expert →Why a Monthly GST Retainership Matters
Routine GST is repetitive, deadline-driven and unforgiving of small errors. A retainer turns it into a reliable, hands-off process. Here is why businesses move to one.
-
01
Never Miss a Due Date
GSTR-1 by the 11th, GSTR-3B by the 20th — tracked and filed on time, every cycle, so late fees and interest never start ticking.
-
02
Maximise Input Tax Credit
Monthly GSTR-2B reconciliation and vendor follow-up mean no eligible ITC is left unclaimed and no ineligible credit slips through.
-
03
Avoid Late Fees & Interest
Disciplined, on-time filing prevents ₹50/day (₹20 for nil) late fees and 18% p.a. interest on unpaid tax.
-
04
A Dedicated CA Owns It
A qualified professional owns your compliance end to end — not a rotating support desk that re-learns your business every month.
-
05
Fewer Notices
Clean, reconciled returns reduce the mismatches that trigger ASMT-10, DRC and other GST notices.
-
06
Predictable Cost
One transparent monthly retainer — no per-return surprises — so you can budget compliance with confidence.
Simple, Transparent Pricing
Custom quote for your case
Fees depend on your business type and scope. Get a clear, itemised quote upfront — no hidden professional charges, government fee billed at actuals.
Who Can Apply?
Eligibility checklist
- An active GST registration (GSTIN) in one or more states
- A monthly or quarterly (QRMP) filing obligation for GSTR-1 & GSTR-3B, or CMP-08
- Access to your sales and purchase data each cycle (invoices, registers or software export)
- GST portal credentials or an authorised signatory to approve and e-verify filings
- A point of contact who can confirm figures before returns are filed
- Any e-invoicing / e-way bill obligations that apply to your turnover and supplies
Everything You Need. One Professional Team.
Onboarding & Scope
Map your GSTINs, turnover, filing frequency (monthly vs QRMP) and assign a dedicated CA.
GSTR-1 Filing
Prepare and file outward-supply returns each cycle after your approval.
GSTR-3B & Payment
Compute tax, generate the challan, and file GSTR-3B on time with confirmation sent.
GSTR-2B ITC Reconciliation
Match purchases against GSTR-2B, flag mismatches and follow up with vendors.
E-Invoice & E-Way Bill
Ongoing support for IRN generation and e-way bills as your volumes require.
RCM & Advisory
Track reverse-charge liabilities and answer month-round GST queries.
Notice Monitoring
Watch for ASMT-10, DRC and other notices, alert you early and help you respond.
Year-End GSTR-9 / 9C
Prepare and file the annual return and reconciliation statement where applicable.
What You’ll Receive
What You Share With Your Retainer Team
A retainer needs a one-time onboarding pack, then just your sales and purchase data each cycle. Everything is collected securely over WhatsApp or email — no office visits, no portal work at your end.
Onboarding (One-Time)
Shared once when the retainer starts- GST registration certificate (REG-06) for each GSTIN
- GST portal login credentials or authorised-signatory access
- Constitution / PAN of the business & signatory details
- Filing frequency — monthly or QRMP — and any e-invoicing status
Each Filing Cycle
Shared every month / quarter- Sales register / outward invoices for the period
- Purchase register / inward invoices for ITC
- Debit & credit notes, and any amendments
- Export / RCM / e-commerce transaction details, if any
As Applicable
Only when relevant- E-way bill and e-invoice data for goods movement
- Any GST notices received (ASMT-10, DRC, etc.)
- Bank / cash-ledger details for tax payment
- Year-end figures for GSTR-9 / 9C reconciliation
Share data early each cycle
To hit the 11th and 20th comfortably, share sales and purchase data by the 5th. Earlier data means more time to reconcile ITC and chase missing vendor invoices.
You approve before we file
Every GSTR-1 and GSTR-3B is prepared, sent for your approval, then filed on the portal on your behalf. Nothing is filed without your sign-off.
IMS discipline matters
The Invoice Management System (IMS) now lets you accept, reject or keep pending each supplier invoice before it flows into GSTR-2B and your ITC — a core part of what the retainer manages for you.
Keep the cash ledger funded
GSTR-3B requires tax to be paid before filing. We compute the liability and raise the challan; you fund the electronic cash ledger so payment and filing happen on time.
Don’t have all the documents?
We’ll identify what your case needs →How a Monthly GST Retainership Works
A predictable monthly rhythm — you share data, we reconcile, file and confirm, every cycle.
Onboarding
A scope call maps your GSTINs, turnover and filing frequency (monthly vs QRMP). A dedicated CA is assigned to your account.
Data Collection (by the 5th)
You share sales and purchase data each cycle via WhatsApp or email — no portal work at your end.
ITC Reconciliation (by the 8th)
We match purchases against GSTR-2B, flag mismatches and missing invoices, and follow up with vendors.
GSTR-1 Filed (by the 11th)
Outward supplies are prepared and filed after your approval.
GSTR-3B & Payment (by the 20th)
Tax is computed, the challan paid, GSTR-3B filed, and confirmation sent to you.
Ongoing Support & Year-End
E-way bill, e-invoice, RCM and notice support run month-round; GSTR-9 / 9C is handled at year end.
A Typical Monthly Filing Cycle
| Stage | Expected Time |
|---|---|
| Onboarding & dedicated CA assigned | One-time, at start |
| Data collection → ITC reconciliation → GSTR-1 | By the 5th–11th each cycle |
| GSTR-3B computation, payment & filing | By the 20th each cycle |
For monthly filers, GSTR-1 is generally due by the 11th and GSTR-3B by the 20th of the following month. Under QRMP (turnover ≤ ₹5 cr), GSTR-1 and GSTR-3B are quarterly, with monthly tax paid via PMT-06 by the 25th. Composition dealers file CMP-08 quarterly and GSTR-4 annually. The retainer tracks whichever cycle applies to you.
Key Dates — At a Glance
| Frequency | What Is Due |
|---|---|
| Monthly | GSTR-1 — by the 11th · GSTR-3B & tax payment — by the 20th · GSTR-2B ITC reconciliation & vendor follow-up |
| Quarterly | QRMP: IFF + PMT-06 payment (by the 25th) · CMP-08 for composition dealers · Quarterly review of ITC and ledgers |
| Annually | GSTR-9 annual return where applicable · GSTR-9C reconciliation (turnover above ₹5 cr) · GSTR-4 for composition dealers |
| Ongoing / Event-Based | E-invoice & e-way bill support · RCM tracking & GST advisory · Notice monitoring (ASMT-10, DRC) & responses |
Dates are indicative and may change with government notifications. Our team tracks every deadline so you never miss a filing.
Doing It Yourself vs TaxClue
Doing It Yourself
- Track every GSTR-1, GSTR-3B and CMP-08 due date yourself
- Reconcile GSTR-2B against your books every single month
- Chase vendors for missing or mismatched invoices
- Handle IMS accept/reject decisions before ITC flows through
- Generate e-invoices (IRN) and e-way bills correctly
- Spot GST notices in time and draft responses
- Risk late fees, interest and lost ITC when a cycle slips
With TaxClue
- A dedicated CA tracks and files every return on time
- Monthly GSTR-2B reconciliation done for you
- Vendor follow-up handled on your behalf
- IMS decisions managed so only eligible ITC is claimed
- E-invoice and e-way bill support included
- Notices flagged early with a response plan
- Predictable fixed fee — no per-return surprises
Skip the guesswork.
Let an expert handle it →Common Mistakes That Delay Your Application
TaxClue reviews your documents before filing to reduce avoidable errors.
What Your Retainer Covers, Cycle After Cycle
Monthly
- GSTR-1 — by the 11th
- GSTR-3B & tax payment — by the 20th
- GSTR-2B ITC reconciliation & vendor follow-up
Quarterly
- QRMP: IFF + PMT-06 payment (by the 25th)
- CMP-08 for composition dealers
- Quarterly review of ITC and ledgers
Annually
- GSTR-9 annual return where applicable
- GSTR-9C reconciliation (turnover above ₹5 cr)
- GSTR-4 for composition dealers
Ongoing / Event-Based
- E-invoice & e-way bill support
- RCM tracking & GST advisory
- Notice monitoring (ASMT-10, DRC) & responses
Penalties & Consequences
What is at stake if you do not comply
- Late fee of ₹50/day (₹20/day nil) plus 18% interest on missed cycles
- Under-claimed ITC when GSTR-2B is never reconciled properly
- A pending GSTR-1 blocks the next GSTR-3B
- ASMT-10 / DRC-01 mismatch notices from unreconciled returns
- Cancellation of registration after continuous non-filing
Regulatory Updates 2025–26
- 2025: The Invoice Management System (IMS) lets recipients accept, reject or keep invoices pending to finalise GSTR-2B and eligible input tax credit.
- Apr 2025: Businesses with AATO of ₹10 crore or more must report e-invoices to the IRP within 30 days of the invoice date.
- 2025: QRMP scheme lets taxpayers with turnover up to ₹5 crore file GSTR-1 and GSTR-3B quarterly while paying tax monthly via PMT-06.
- 2025: GSTR-9 annual return remains optional for turnover up to ₹2 crore; GSTR-9C self-certified reconciliation applies above ₹5 crore.
Why Businesses Choose TaxClue
Dedicated CA Team
A qualified professional owns your compliance — not a rotating support desk.
End-to-End
From data collection to filing and notices — fully managed, minimal effort from you.
On-Time, Every Cycle
Automated reminders and a fixed monthly rhythm keep filings punctual.
100% Online
Everything over WhatsApp / email — no office visits required.
Transparent Fixed Fee
One clear monthly retainer — ₹0 hidden professional charges.
Proactive, Not Reactive
We reconcile, flag risks and chase vendors before they become problems.
Your Documents Deserve Professional Care
- Financial data handled by professionals under confidentiality
- Access limited to the team working on your account
- Communication over secure digital channels
- Records retained only as long as needed for compliance
Frequently Asked Questions
What is a monthly GST retainership?
How is a retainer different from a one-time GST return filing?
Which GST returns are covered under the retainer?
How is the monthly retainership fee decided?
Do I still need to file GST returns myself?
What are the GSTR-1 and GSTR-3B due dates?
How does the retainer handle ITC reconciliation?
What happens if a GST return is filed late?
Does the retainer include e-way bill, e-invoicing and notices?
Can you manage multiple GSTINs or multiple states under one retainer?
Do you handle composition dealers on a retainer?
How do I share my data each month?
What is the difference between GSTR-1 and GSTR-3B?
Does the retainer handle GSTR-2B reconciliation and the Invoice Management System?
What happens if I miss a GST due date without a retainer?
Can a retainer manage QRMP filing for me?
Do I have to give you my GST portal login?
Official Sources & Legal References
Every regulatory figure on this page — due dates, late fees, interest and thresholds — is drawn from primary law and official government sources. Verify them directly:
- GST Portal — Returns, GSTR-2B & IMSOfficial portal to file returns, view GSTR-2B and manage the Invoice Management System
- CBIC-GST — Acts, Rules & NotificationsCGST Act & Rules 2017, plus circulars and notifications on due dates and late fees
- E-Way Bill SystemGenerate and manage e-way bills for goods movement above ₹50,000
- E-Invoice Portal — IRN & QRGenerate Invoice Reference Numbers for B2B e-invoicing above the threshold
Related Guides
GSTR-1 & GSTR-3B — Return Filing Basics
Read guide ArticleGSTR-1 vs GSTR-3B Reconciliation
Read guide ArticleHow ITC Matching with GSTR-2B Works
Read guide ArticleInvoice Management System (IMS) Explained
Read guide ArticleBlocked ITC & Reversal — Section 17
Read guide ArticleGST Payment via PMT-06 Challan
Read guide ArticleReplying to a GST Show-Cause Notice
Read guide ArticleGSTR-9 Annual Return — Section 44
Read guideMonthly GST Retainership Resources — All Free
Put Your Monthly GST Compliance on Autopilot
A dedicated CA team files GSTR-1 and GSTR-3B on time, reconciles your ITC and tracks e-invoicing, e-way bills, RCM and notices — all on one fixed monthly retainer. Consultation, transparent fee, zero hidden charges.
Talk to a GST Expert →