Chennai's dedicated GST practice · GSTR-1 due 11th · GSTR-3B due 20th/22nd
Ambattur · PIN 600053

GSTR-1 & GSTR-3B Monthly Filing near Ayapakkam, Ambattur, Chennai

Our consultants provide GSTR-1 & GSTR-3B Monthly Filing to businesses across Ambattur starting at Rs.749. Every file is reconciled and senior-reviewed before submission, which is why our clients see far fewer departmental queries than they did while self-filing.

We serve businesses on and around Ayapakkam — document pickup, in-person consultation at our Porur office, or fully online over WhatsApp.

  • Handled by senior GST practitioners — 20 years in Chennai tax practice
  • Transparent fee: Rs.749/month onwards — full quote before we start
  • Same-day response on WhatsApp and phone (Mon-Sat: 9.00 AM - 8.00 PM)
  • Doorstep document pickup in Ayapakkam, Ambattur
Rs.749/month onwardsProfessional fee
Filed before the 11th and 20th of every monthTypical timeline
20 yearsIn indirect tax practice
30 minCallback time

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15+Years in GST & Tax Practice
1500+Chennai Businesses Served
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Local Expertise

Trade Profile and GST Jurisdiction for Ayapakkam, Ambattur

Businesses in Ambattur looking for GSTR-1 & GSTR-3B Monthly Filing want two things: work done correctly and someone answerable when questions come. Ambattur hosts one of South India's largest small-scale industrial estates, where thousands of engineering, auto component, garment and fabrication units operate across the North and South phases off MTH Road and Ambattur-Red Hills Road. Job work movements between units demand disciplined ITC-04 and delivery challan records, while exporters and units crossing Rs.5 crore turnover must manage LUT filings and e-invoicing. We serve this belt — including Avadi and Padi — with fixed fees quoted upfront, a written document checklist, and filings completed ahead of statutory due dates. Every acknowledgement is shared the day it is generated, and our support continues if the department raises any query on work we have filed.

GST jurisdiction for Ambattur (PIN 600053): businesses here generally fall under the CGST Chennai North Commissionerate. We regularly represent clients from Ambattur before this jurisdiction for registrations, clarifications and notice hearings, and can confirm your exact division and range from your GSTIN. State-jurisdiction cases are handled with the Tamil Nadu Commercial Taxes Department.
GST for Professional Services Firms in Ambattur
Professional firms bill at 18 percent, but the mechanics differ by profession: services of advocates to business entities are taxed in the client's hands under reverse charge, while chartered accountants, company secretaries and architects charge tax on their own invoices. Fees received in advance are taxable on receipt, and retainers must be invoiced within the time limits of Section 31(2). Amounts recovered from clients as a pure agent, such as government fees paid on their behalf, stay outside taxable value only if every condition of Rule 33 is met and documented. A specialist sets up retainer invoicing, pure agent documentation and branch cross-charges correctly; call +91 - 9600 606 444 to discuss your firm.
Yes, small businesses in Ambattur can use professional GSTR-1 & GSTR-3B Monthly Filing affordably — fees start at Rs.749, which is usually far less than one period of late fees and lost input tax credit.
Why Us

Why Ayapakkam, Ambattur Businesses Choose ChennaiGST

Not a bulk-filing portal. A senior consultant knows your file, your jurisdiction and your deadlines.

E-Commerce Seller Reconciliation, Including TCS

Sellers on Amazon, Flipkart and other marketplaces face a three-way match between marketplace reports, GSTR-1 and the TCS the operator deposits against your GSTIN. We reconcile all three every period and accept the TCS credit, so sellers in Ambattur never leave marketplace deductions unclaimed.

ITC Maximisation Within the Law

We match your purchase register against GSTR-2B every period, follow up on invoices your suppliers have not uploaded, and ensure every rupee of eligible input tax credit is claimed. Clients routinely recover credit they were silently losing under self-filing.

Composition Scheme Compliance Without Slips

Composition dealers have their own rulebook — CMP-08 every quarter, GSTR-4 annually by 30 June, bills of supply instead of tax invoices, and a turnover ceiling that must be watched. We handle each of these correctly so the scheme's simplicity never turns into a violation.

Clean Exits When a Business Closes

Winding up attracts its own GST obligations — the cancellation application, reversal of credit on closing stock, and the final return in GSTR-10 within three months. We close registrations properly so a business you shut in Ambattur never writes back to you as a demand years later.

No Handing Off to Untrained Juniors

Your work is executed by trained GST staff working under direct senior supervision, not passed to interns learning on your file. The person preparing your return understands reverse charge, blocked credits and place of supply, because getting these wrong costs you money.

Refund and Export Experience That Shows

From filing the LUT in RFD-11 at the start of each financial year to preparing RFD-01 refund claims with complete annexures, we know what makes a refund file move. Exporters and inverted-duty businesses come to us specifically for this.

How It Works

Our Monthly Returns Process

Monthly data collection

At month end we remind you and collect sales invoices, purchase bills and credit notes in whatever format you maintain, including Excel, Tally exports or scanned copies.

GSTR-1 preparation and filing

We prepare invoice-wise outward supply details, validate GSTINs of your B2B customers, summarise B2C supplies and file GSTR-1 on the portal before the 11th.

ITC reconciliation with GSTR-2B

We download your auto-drafted GSTR-2B, match it against purchase records, and claim only eligible input tax credit so that mismatches do not trigger scrutiny notices later.

Tax computation and confirmation

We compute net tax payable after ITC set-off, share the working with you for approval, and generate the payment challan for any cash liability.

GSTR-3B filing and reporting

After your confirmation and tax payment, we file GSTR-3B before the 20th and send you both filed acknowledgements along with a one-page summary of the month.

Checklist

Documents Required for GSTR-1 & GSTR-3B Monthly Filing

Send these on WhatsApp (+91 - 9600 606 444) and we take it forward the same day.

Transparent Pricing

What GSTR-1 & GSTR-3B Monthly Filing Costs in Ambattur

Rs.749/month onwards

Timeline: Filed before the 11th and 20th of every month · No hidden charges · GST invoice provided

Rs.7,999/year

  • Invoice-level GSTR-1 preparation and filing by the 11th
  • GSTR-2B download and input tax credit reconciliation
  • GSTR-3B computation and filing by the 20th
  • Reverse charge liability identification and reporting
  • Challan preparation for tax payment
  • Filed return acknowledgements and monthly tax summary

Call +91 - 9600 606 444

Outcomes

What You Get

Practical outcomes our clients measure us by.

Peace of Mind Around Due Dates

The 11th and the 20th stop being days of dread. You approve a prepared draft, we file, and the acknowledgement lands on your WhatsApp — month after month, without drama.

Correct Tax the First Time

Rates, reverse charge, place of supply and blocked credits are applied correctly at the preparation stage, so you neither overpay tax you do not owe nor underpay and invite demands with penalty later.

The Lowest Tax Position the Law Allows

Your scheme choice — regular, composition or QRMP — is re-examined as turnover and margins change, so you are always paying under the structure that legitimately costs your business the least.

Every Eligible Rupee of ITC Claimed

Systematic GSTR-2B matching and supplier follow-up mean input tax credit that was leaking away under self-filing is captured each month, directly reducing the cash you pay out with every GSTR-3B.

Time Back for Your Actual Business

The hours you or your accountant spent wrestling with the portal, JSON errors and reconciliations every month return to sales, operations and customers, while trained hands manage the compliance in the background.

TDS and TCS Credits Converted to Cash

Amounts deducted by government buyers as GST TDS and by marketplaces as TCS are accepted on the portal each period, so money withheld against your GSTIN actually reaches your cash ledger instead of lying unclaimed.

Why a Specialist Matters

With ChennaiGST vs Doing It Yourself

AspectWith ChennaiGSTDIY / Unattended
Annual return preparationMonthly reconciliations roll naturally into GSTR-9, filed comfortably before 31 December with figures already agreed through the year.Twelve months of unmatched data reconstructed in December, with differences discovered too late to be corrected cleanly.
Supplier defaultsSuppliers who stop uploading invoices are identified within the period and pursued before their default becomes your blocked credit.Missing supplier invoices surface only when credit is denied, by which time recovering the amount from the vendor is difficult.
Refund claimsRFD-01 filed with complete statements and annexures, tracked from ARN to bank credit, with any deficiency memo answered promptly.Incomplete claims bounce back as deficiency memos while the refund sits unclaimed for months and working capital stays blocked.
Record keepingEvery return, challan, acknowledgement and working paper archived in an organised folder, retrievable in minutes years later.Documents scattered across email, downloads and old phones; assembling records for a bank or an audit takes days.
Goods in transitE-way bills generated correctly and matched to invoices, so consignments pass roadside inspections without detention or penalty.A defective or missing e-way bill can mean detention at a checkpoint, with penalties that dwarf the tax on the consignment.
Due-date trackingA maintained compliance calendar with internal cut-offs days before the 11th and the 20th; we chase you for data, not the other way around.Deadlines remembered from memory or phone alarms; one busy week and the return slips past the due date.
Legal Position

The Current Law on This Service — relevant to Ambattur businesses

Positions we rely on when preparing filings and drafting replies — with the exact citation, so you can verify each one.

Circular

Service exemption clarifications following the 52nd Council

Circular No. 206/18/2023-GST · 2023-10-31

The Board answered a set of service taxability questions arising from the 52nd GST Council meeting. Among them, it confirmed that District Mineral Foundation Trusts set up by State Governments qualify as Governmental Authorities and are therefore eligible for the exemptions available to such authorities. Other classification and exemption questions on specified services were also settled, so that field formations across States adopt a uniform view rather than issuing conflicting demands.

How we apply it: Contractors in Tamil Nadu working for statutory trusts and authorities should verify the exemption position against this circular before quoting a GST-inclusive price.

Portal Advisory

No GSTR-1 filing without validated bank account details

GSTN Advisory dated 23 August 2024 — Rule 10A bank account furnishing · 2024-08-23

GSTN advised that under Rule 10A of the CGST Rules, registered taxpayers must furnish valid bank account details within 30 days of registration or before filing GSTR-1 or IFF, whichever is earlier. From 1 September 2024 the portal blocks GSTR-1 and IFF filing for taxpayers whose bank account details are not available and validated on the portal. The measure targets fraudulent registrations created without genuine banking trails.

What to do about it: Newly registered businesses should add and validate their bank account on the portal immediately after registration to avoid a filing blockage.

Notification

GST 2.0 services package: individual life and health insurance exempted

Notification Nos. 15/2025 & 16/2025-Central Tax (Rate) · 2025-09-17

Alongside the goods schedule, CBIC issued companion notifications for services effective 22 September 2025, Notification 15/2025-Central Tax (Rate) superseding the services rate notification 11/2017 and Notification 16/2025-Central Tax (Rate) carrying the services exemptions. Individual life insurance and individual health insurance policies, including family floater and senior citizen policies, along with their reinsurance, were fully exempted from GST. Service rates were realigned to the two-slab structure, and the treatment of local delivery services provided through e-commerce operators was clarified within the package.

What to do about it: Insurance premiums for individual policies carry no GST from 22 September 2025, and service businesses should re-examine their rate positions under the restructured schedules.

References are provided for general information. Verify the current position on gst.gov.in or cbic.gov.in before acting.

FAQs

Frequently Asked Questions

Straight answers from practising GST consultants — based on the CGST Act, current CBIC notifications and day-to-day portal experience.

Which GST office handles Ambattur businesses?
Businesses in Ambattur (PIN 600053) generally fall under the CGST Chennai North Commissionerate, with state-jurisdiction cases handled by the Tamil Nadu Commercial Taxes Department. Your exact division and range can be confirmed from your GSTIN on the GST portal. We regularly appear before this jurisdiction for registrations, clarifications and hearings, so we know the local practice and documentation preferences.
Is there a GST consultant near Ambattur for gst return filing?
Yes. We serve Ambattur and the surrounding areas from our office at Porur, Chennai - 600 116, Tamil Nadu, and most monthly returns work is completed online — you send documents on WhatsApp and we handle the portal work. If you prefer in-person help, we offer doorstep document pickup across Ambattur and you are welcome to visit our office. Reach us on +91 - 9600 606 444 between 9 AM and 8 PM, Monday to Saturday.
What documents do I need to give my GST consultant every month?
For monthly returns you need your sales invoices (or a sales register), purchase invoices, credit and debit notes, details of advances received for services, and any export or SEZ supply documents. If you use accounting software, an exported sales and purchase summary is enough. We then match your purchases against GSTR-2B on the portal before claiming input tax credit. Most clients in Ambattur simply share their data on WhatsApp or email by the 5th of each month and we handle the rest. Call +91 - 9600 606 444 to set up a simple monthly routine.
I made a mistake in GSTR-3B. Can I revise it?
No, GSTR-3B cannot be revised once filed. The GST law allows corrections only through adjustments in the returns of subsequent tax periods. If you under-reported tax, pay the difference with 18 percent interest in the next GSTR-3B or through Form DRC-03. If you over-reported, adjust it in a later month within the time limits allowed. Errors in GSTR-1 can be amended in the following period's return. Because corrections have deadlines, it is best to have the error reviewed quickly; our team in Ambattur can assess it the same day.
When can I issue a GST credit note against my sales invoice?
Section 34 permits a credit note where the taxable value or tax charged in the invoice exceeds what is actually payable, where the goods are returned by the recipient, or where the goods or services are found deficient. The credit note references the original invoice, and reporting it in your GSTR-1 reduces your output tax liability for that period. It is the correct tool for sales returns, rate errors and quality claims. What a credit note cannot do is cancel an e-invoice after the twenty-four hour IRP window or rewrite history for a different customer; it must trace to a genuine adjustment on an identified invoice.
How are B2B and B2C invoices reported differently in GST returns?
B2B invoices, meaning supplies to registered buyers, are reported invoice by invoice in Table 4 of GSTR-1 with the buyer's GSTIN, so each one flows into that buyer's GSTR-2B for credit. B2C supplies are split into two streams: large inter-state invoices above the threshold are reported invoice-wise in Table 5, while all remaining B2C sales are reported as consolidated, rate-wise totals per state in Table 7. This is why capturing the buyer's GSTIN correctly at billing matters so much; an invoice keyed as B2C by a cashier gives the registered buyer no credit and triggers correction requests later.
How does a GTA opt for forward charge, and by when must it be done?
The option is exercised by filing the Annexure V declaration on the GST portal. For an existing GTA, the window for a financial year runs from 1 January to 31 March of the preceding financial year, so the choice for the coming year must be locked in by 31 March. A newly registered GTA must file the declaration within forty-five days of applying for registration or one month from the date of obtaining registration, whichever is later. Once exercised, the option continues for future years automatically unless the GTA files Annexure VI to revert to reverse charge. Missing the window means remaining under the default reverse charge mechanism for the whole year.
Do I have to report HSN codes in my GSTR-1?
Yes. Taxpayers with aggregate turnover up to Rs.5 crore must report a 4-digit HSN summary for B2B supplies in Table 12 of GSTR-1, while those above Rs.5 crore must report 6-digit HSN codes for all supplies. The portal now validates HSN entries against its master list, so wrong or truncated codes can block filing. Getting HSN classification right also determines your tax rate, so it is worth a one-time review of your product list. Our team in Ambattur maintains a verified HSN master for every client.
What information is needed to prepare my GSTR-9?
The portal auto-drafts GSTR-9 from your filed GSTR-1 and GSTR-3B, and provides a system-computed summary along with GSTR-2A/2B data for credit tables. To verify and complete it we need your audited or finalised financial statements, sales and purchase registers, input tax credit ledger, details of RCM payments, HSN-wise summaries, and any DRC-03 payments made during the year. Differences between books and returns must be explained and, where needed, paid. Sharing these by early November gives enough time for a clean filing before 31 December. Call +91 - 9600 606 444 for our standard checklist.
I received a debit note from a supplier for an old invoice. Which year's ITC deadline applies?
The deadline is counted from the date of the debit note, not the original invoice. After the Finance Act 2020 delinked debit notes from their underlying invoices, ITC on a debit note can be claimed up to 30 November following the end of the financial year in which the debit note itself was issued. So a debit note dated June 2025 against an invoice of January 2024 remains claimable until 30 November 2026. This delinking rescues many price-escalation and rate-difference credits that would otherwise appear time-barred, and it is worth checking before writing off any debit note credit as lost.
What is the last date to file GSTR-9 for a financial year?
GSTR-9 for a financial year is due by 31 December of the following financial year. For example, the annual return for FY 2024-25 is due by 31 December 2025, unless the government extends the date by notification. The reconciliation statement GSTR-9C, where applicable, has the same due date and is filed after GSTR-9. Since annual return preparation involves reconciling twelve months of returns with books, we recommend starting by October rather than December. Businesses in Ambattur can call +91 - 9600 606 444 to book an early slot with our annual returns team.
What is the GST rate on a works contract for a commercial building?
Under GST, a works contract relating to immovable property is treated wholly as a supply of services, and the standard rate is 18 percent on the contract value, with the contractor eligible for input tax credit on cement, steel and other inputs. This applies to construction, fabrication, erection, repair and renovation contracts for factories, offices and commercial buildings. The old VAT-plus-service-tax splitting of material and labour is gone; one rate applies to the whole consideration. Contractors should also note that free-issue materials supplied by the client can affect valuation, so contract drafting deserves attention before quoting.
Can one document cover both taxable and exempt items sold together?
Yes, in one specific situation. Rule 46A permits a registered person supplying both taxable and exempt goods or services to an unregistered recipient to issue a single invoice-cum-bill of supply covering the entire transaction. This saves retail counters from splitting every mixed basket into two documents. The concession applies only when the buyer is unregistered; for a registered buyer, you must still issue a tax invoice for the taxable items and a separate bill of supply for the exempt items. Supermarkets and pharmacies with mixed inventories use this format daily, and billing software handles the split automatically once configured.
What are the most common mistakes Chennai businesses make with GST refunds and ITC?
The recurring ones we see across Ambattur are: missing the two-year limitation for RFD-01, mismatches between GSTR-1, GSTR-3B and shipping bill data that stall export refunds, forgetting the April LUT renewal, claiming ITC on invoices absent from GSTR-2B, ignoring blocked credits under Section 17(5), breaching the 180-day supplier payment rule, and treating deficiency memos as rejections instead of refiling within limitation. Each of these is preventable with a simple monthly checklist and a year-end reconciliation. ChennaiGST builds exactly this discipline into its retainer engagements; call +91 - 9600 606 444 if any of these sounds familiar.
We conduct training programmes and events in different cities. Which state's GST applies?
Two rules operate. For admission to an event, including tickets to exhibitions or conferences, the place of supply is where the event is held. For organising an event or providing training, the place of supply is the registered recipient's location when the client is registered; if the client is unregistered, it shifts to the venue where the event or training is actually performed. So a Ambattur trainer running a workshop in Hyderabad for a registered Chennai company charges CGST plus SGST of Tamil Nadu, but the same workshop sold to unregistered individuals is taxed in Telangana. Invoice each engagement after checking the client's registration.
What is the electronic liability register on the GST portal and why should I check it?
The electronic liability register, maintained in Form PMT-01, records every liability raised against your GSTIN: self-assessed tax from returns in Part I, and demands from assessments, adjudication orders and DRC-07 summaries in Part II. Payments and pre-deposits are set off against these entries. You can view it under Services, then Ledgers. Checking Part II periodically matters because demand entries you never noticed can trigger recovery, interest accumulation and refund adjustments. During any refund claim, the officer will offset outstanding register balances, so a clean register speeds up your money. We review all three ledgers in every Ambattur health check.
What does a GST consultant in Ambattur typically charge for refund and compliance work?
Fees vary with complexity. Simple filings such as an LUT or an excess cash ledger refund are usually fixed-fee assignments, while export and inverted duty refunds involve invoice statements, formula workings and departmental follow-up, so they may be priced as a fixed fee or a small percentage of the refund secured. Monthly reconciliation and return packages are subscription-based. ChennaiGST publishes transparent pricing starting at Rs.749 with no percentage cut on straightforward claims, and you pay only after the scope is agreed in writing. Call +91 - 9600 606 444 for a quote specific to your turnover and refund type.
Who must sign GST filings with a DSC, and who can use EVC?
Companies and limited liability partnerships must authenticate registration applications and returns with a Digital Signature Certificate of the authorised signatory; the Electronic Verification Code route is not ordinarily available to them, though the government has periodically allowed EVC for companies during specified relaxation windows. Proprietorships, partnerships, HUFs and trusts can freely use EVC, an OTP sent to the authorised signatory's registered mobile and email. The DSC must be a Class 3 signature registered on the portal against the signatory's PAN. If a company's filings fail at the signing step, an expired or unregistered DSC is the usual culprit.
Are there any hidden charges for GSTR-1 & GSTR-3B monthly filing?
No. The fee quoted before we start is the fee you pay. Government fees, portal charges or statutory late fees, where they apply, are separate and disclosed to you in advance with the exact amount. We issue a proper GST invoice for our professional fee. If the scope of work changes — for example, an unexpected notice or additional periods — we tell you the revised fee before doing anything further.
How long does GSTR-1 & GSTR-3B monthly filing take in Ambattur?
Filed before the 11th and 20th of every month. That assumes your documents are complete and there is no departmental query. We start the same day we receive your papers and tell you the realistic completion date upfront rather than an optimistic one. Where the GST portal or the officer causes delay — clarifications, physical verification or system issues — we track it daily and keep you informed on WhatsApp.
Can I get GSTR-1 & GSTR-3B monthly filing done online without visiting the office?
Yes, the entire process can be handled online. You share scanned documents on WhatsApp or email, we prepare and file everything on the GST portal, and you receive the acknowledgement and filed copies digitally. Businesses in Ambattur regularly complete monthly returns with us without a single office visit. If a physical verification or personal hearing is required by the department, we guide you through it.
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