GST Compliance Services - Your Monthly GST, Handled
GST compliance is not a one-time filing - it is a recurring cycle of GSTR-1, GSTR-3B, ITC reconciliation, e-invoicing, e-way bills, and the occasional notice, every single month, for as long as your GSTIN is active. Our GST Compliance Services retainer brings all of that under one team and one dashboard - we file your monthly and annual returns on time, reconcile your GSTR-2B against your purchase register, flag mismatches before they become notices, and respond when the department does write to you. It ties together the specific filing services we already offer (GSTR-1, GSTR-3B, GSTR-9, ITC reconciliation) into one ongoing engagement, so you deal with one point of contact instead of coordinating each filing separately.
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The key facts, in one place
Everything a founder usually has to piece together from five different pages, in one place.
- Governing law
- CGST Act, 2017And corresponding SGST/IGST Acts
- Core filings covered
- GSTR-1, GSTR-3B, GSTR-9Plus composition and other applicable returns
- Reconciliation
- GSTR-2A / 2B vs purchase registerMonthly, to protect your ITC claims
- Late fee exposure
- ₹50-₹200/dayPer return, per Act, if filings are missed
- Notice handling
- IncludedDrafting replies to standard department notices
- Billing model
- Monthly retainerFlat fee by transaction volume tier, not per-filing
- Minimum commitment
- Month-to-monthNo long-term lock-in required
- Best for
- Ongoing GSTIN holdersNot a one-time or fresh registration service
What are GST Compliance Services?
Once a business is registered under GST, compliance does not end - it becomes a recurring monthly and quarterly obligation under the CGST Act, 2017: filing outward supply returns (GSTR-1), summary returns with tax payment (GSTR-3B), reconciling input tax credit against GSTR-2B, keeping e-invoicing and e-way bill generation compliant if applicable, and eventually filing the annual return (GSTR-9). Each of these is a separate filing with its own due date, and missing any one attracts late fees and interest, even if the tax itself was paid on time.
GST Compliance Services is our umbrella retainer that brings this entire cycle under one engagement instead of you (or your accountant) tracking a dozen separate due dates and filings. We already offer dedicated pages for individual filings - GSTR-1, GSTR-3B, GSTR-9, ITC reconciliation, e-invoicing, and more - this service is the coordinated version of all of it: one CA team responsible for your full monthly compliance, reconciliation, and notice handling, rather than you managing each piece separately.
This is positioned as an ongoing retainer, not a one-time registration or single-return filing service. If you need only a single GSTR-3B filed for one period, or you're registering for GST for the first time, our dedicated pages for those specific tasks are a better fit - this service is for businesses that want their entire monthly GST compliance handled on a continuing basis.
Who should use a GST compliance retainer?
This service is built for businesses with an active GSTIN and recurring monthly or quarterly filing obligations, not for one-off filings.
- You have an active GSTIN and are filing (or should be filing) GSTR-1 and GSTR-3B every month or quarter
- You're currently managing GST compliance in-house or with a generalist accountant and want CA-level review without hiring in-house
- You've received GST notices before, or are worried about ITC mismatches between your books and GSTR-2B
- You run an e-commerce, trading, or manufacturing business with a high volume of monthly transactions that makes manual reconciliation error-prone
- You want one accountable team for GST rather than juggling separate vendors for filing, reconciliation, and notice response
- You are switching from another consultant or CA and want a smoother, better-tracked handover of your GST compliance
What we need to onboard your GST compliance
Common to every entity
- GSTIN and GST portal login credentials (or authorisation to file on your behalf)Mandatory
- Sales and purchase registers / accounting software accessMandatory
- Bank statements for the relevant GST period(s)Mandatory
- Previous GST returns filed (last 3-6 months, for continuity)Mandatory
- Details of any pending GST notices or department correspondence
- E-way bill and e-invoicing portal access, if applicable to your turnover
Get the GST compliance onboarding checklist
A one-page checklist of everything we need to take over your monthly GST compliance.
How our GST compliance retainer works
We run a consistent monthly cycle so nothing depends on you remembering a due date.
Onboarding and portal access
We review your last few months of filings, get GST portal access or authorisation, and connect your accounting data so we're working from your actual books, not just invoices you send us.
Monthly data collection and books review
Each month, we pull your sales and purchase data, flag anything unusual (a spike in exempt supplies, missing invoices, HSN code errors) before it becomes a filing issue.
GSTR-1 and GSTR-3B preparation and filing
We prepare, review, and file your outward supply and summary returns before the due date, with tax liability confirmed with you before payment.
GSTR-2A/2B reconciliation and ITC check
We match your purchase register against GSTR-2B every month, flag vendors who haven't filed (which blocks your ITC), and identify ineligible credits before you claim them.
Notice monitoring and response
If the department issues a notice or query - a mismatch notice, a show-cause, a routine query - we draft and file the response as part of the retainer, not as a separate billable surprise.
Annual return and reconciliation
At year-end, we prepare and file GSTR-9 (and GSTR-9C if applicable), reconciling the full year's data against your audited books.
If your GST filings are already simple and low-volume - a handful of invoices a month with no ITC complexity - a single dedicated filing service (like our GSTR-3B filing page) may be more cost-effective than a full retainer. This service earns its fee once reconciliation, notice risk, or filing volume gets complex enough that a CA reviewing things monthly genuinely saves you money or risk.
GST compliance retainer pricing
Pricing is based on monthly transaction volume and the number of GSTINs, not a flat one-size fee.
Starter
Low-volume businesses, single GSTIN
- GSTR-1 and GSTR-3B filing
- Basic ITC reconciliation
- Email/WhatsApp support
- Annual GSTR-9 filing (add-on)
Growth
Growing businesses with moderate transaction volume
- Everything in Starter
- Full GSTR-2A/2B reconciliation
- E-way bill and e-invoicing support
- Standard notice response included
Enterprise
High-volume or multi-GSTIN businesses
- Everything in Growth
- Multi-GSTIN consolidated compliance
- Dedicated CA point of contact
- Priority notice and audit support
Full fee breakdown
| Particulars | Government fee | Professional fee |
|---|---|---|
| GSTR-1 + GSTR-3B monthly filing | ₹0 (portal filing is free) | Included in retainer |
| GSTR-2A/2B reconciliation | N/A | Included from Growth plan |
| GSTR-9 annual return | ₹0 | Included / add-on depending on plan |
| Notice response (standard) | ₹0 | Included in retainer |
| GST audit / assessment representation | N/A | Quoted separately, complex cases |
Not included in any tier:
- ✕ Fresh GST registration for a new GSTIN (available as a separate service)
- ✕ GST refund applications and litigation/appeal representation beyond standard notice replies
- ✕ Bookkeeping from scratch, if your books are not already reasonably maintained
What you get with a GST compliance retainer
Time and coordination
- One team responsible for GSTR-1, GSTR-3B, reconciliation, and notices, instead of juggling separate filings and vendors
- Fixed monthly cost instead of ad hoc invoices every time a filing or notice comes up
Risk reduction
- Monthly GSTR-2B reconciliation catches ITC mismatches and non-filing vendors before they turn into a blocked credit or notice
- Returns reviewed by a CA before filing, reducing errors that trigger department scrutiny later
Continuity
- A documented monthly process means compliance doesn't depend on one person's memory or availability
- Smooth handover if you're switching from another consultant, with historical filings reviewed on onboarding
Why manage your GST compliance through us
Frequently asked questions
Monthly GSTR-1 and GSTR-3B filing, GSTR-2A/2B reconciliation against your purchase register, e-way bill and e-invoicing support where applicable, annual GSTR-9 filing, and standard notice response - all under one retainer instead of separate engagements.
A single GSTR-3B filing service covers one return for one period. GST Compliance Services is an ongoing retainer that covers your full monthly cycle - GSTR-1, GSTR-3B, reconciliation, e-way bills, and notices - under one coordinated team, month after month.
Plans start at ₹3,000/month for low-volume, single-GSTIN businesses and go up to ₹15,000/month for high-volume or multi-GSTIN businesses, depending on transaction volume and the depth of reconciliation and support needed.
Yes, standard department notices - mismatch notices, routine queries, show-cause notices of a standard nature - are handled as part of the retainer from the Growth plan onward. Complex litigation or assessment representation may be quoted separately.
GSTR-2A is the auto-populated, dynamic statement of your inward supplies as reported by your vendors. GSTR-2B is the static monthly statement used to actually determine your eligible Input Tax Credit. We reconcile your purchase register against GSTR-2B every month to catch vendors who haven't filed (which blocks your credit) and credits that shouldn't be claimed.
Yes. On onboarding, we review your last several months of filings and GST history before taking over, so the switch doesn't create gaps or duplicate filings.
Not necessarily. If you have low transaction volume and simple filings, a single dedicated service like GSTR-3B filing may be more cost-effective. This retainer is built for businesses where reconciliation, filing volume, or notice risk make ongoing management worthwhile.
No, this service assumes you already have an active GSTIN. Fresh GST registration is a separate service - see our GST Registration page - and can be arranged alongside your compliance retainer if you're just starting out.
Late GST returns attract a late fee (typically ₹50 per day per return, ₹20 per day for nil returns, split across CGST and SGST) plus interest on unpaid tax. Our retainer is built around a monthly cycle specifically to avoid this - due dates are tracked centrally rather than left to memory.
Yes, our Enterprise plan is built for businesses with multiple GSTINs (across states or business verticals) and provides consolidated compliance tracking and a dedicated point of contact.
Yes, from the Growth plan onward, e-invoicing (IRN generation where applicable) and e-way bill generation support are included as part of the monthly compliance cycle for businesses that cross the applicable turnover thresholds.
Either through authorised access to your GST portal login, or through a documented authorisation process, combined with access to your sales/purchase registers or accounting software - we do not need your full accounting system access beyond what's needed for GST work.
No, the retainer is billed and can be engaged month-to-month. We don't require a long-term lock-in, though continuity does help with reconciliation quality over time.
Standard compliance and reconciliation is included, but GST refund applications (such as for exports or inverted duty structure) are handled as a separate, specifically scoped service given the additional documentation involved.
We do offer GSTR-9 as a standalone filing service if you manage your monthly returns yourself and only need annual return support - this compliance retainer is the broader option if you want the full cycle handled.
Written by Neha Kapoor, Head of GST Advisory · Reviewed by CA Suresh Iyengar, FCA, 14 years managing GST compliance retainers for SMEs and mid-market businesses
Last updated 9 September 2026
Sources
GST rules, due dates, late fee amounts, and thresholds are set by the government and can be revised. This page describes our service offering; confirm current rates and due dates with our team or on gst.gov.in.
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