Chennai's dedicated GST practice · GSTR-1 due 11th · GSTR-3B due 20th/22nd
Avadi · PIN 600054

GSTR-1 & GSTR-3B Monthly Filing for Shops and Offices on Vellanur, Avadi

Complete GSTR-1 & GSTR-3B Monthly Filing in Avadi from Rs.749 — documentation, preparation, filing and acknowledgement, all managed by one accountable team. One call or WhatsApp message starts the process, and you get a same-working-day response.

We serve businesses on and around Vellanur — 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 Vellanur, Avadi
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
50000+GST Returns Filed
24GST Services Handled In-House
Local Expertise

Trade Profile and GST Jurisdiction for Vellanur, Avadi

Every locality in Chennai has its own commercial rhythm, and Avadi is no exception. Avadi is a defence manufacturing town built around the Heavy Vehicles Factory and CVRDE on CTH Road, with a fast-growing retail and real estate market spreading through Paruthipattu and Kovilpathagai. Vendors and contractors billing defence establishments have 2 per cent GST TDS deducted, so matching GSTR-7 credits and handling tender-based works contracts are the area's characteristic compliance tasks. Our practice has shaped its GSTR-1 & GSTR-3B Monthly Filing work around exactly these realities, serving clients in Avadi as well as Ambattur and Poonamallee. Registrations, returns, refunds and notice replies are handled by one accountable team, with fees fixed in writing before work begins and every filing reconciled against portal data before it is submitted.

GST jurisdiction for Avadi (PIN 600054): businesses here generally fall under the CGST Chennai Outer Commissionerate. We regularly represent clients from Avadi 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 IT and SaaS Companies in Avadi
IT and SaaS services are taxed at 18 percent domestically, but the real complexity is qualifying overseas billing as export under Section 2(6) of the IGST Act: the recipient must be outside India, consideration must arrive in convertible foreign exchange or INR where RBI permits, and the Indian entity and foreign recipient must not be mere establishments of the same person. Marketing or support arms serving a foreign parent risk classification as intermediaries under Section 13(8), making the place of supply India and the income taxable. Supplies to SEZ units are zero-rated with proper endorsements. A specialist structures contracts and invoicing so export status survives departmental scrutiny.
Businesses in Avadi typically choose professional GSTR-1 & GSTR-3B Monthly Filing because reconciled, senior-reviewed filings from Rs.749 prevent the late fees, lost credit and mismatch notices that self-filing commonly produces.
Why Us

Why Vellanur, Avadi Businesses Choose ChennaiGST

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

Notice-Proof Filing Discipline

Most GST notices trace back to mismatches between GSTR-1, GSTR-3B and GSTR-2B. We reconcile these before filing, not after a notice arrives, so your returns are internally consistent and the most common triggers for ASMT-10 scrutiny simply never appear.

Support in Tamil and English

GST is confusing enough without a language barrier. Our team explains notices, tax positions and filing requirements in plain Tamil or English, whichever you and your staff in Avadi are comfortable with, and keeps written communication simple and jargon-free.

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.

Transparent, Fixed Fees Quoted Upfront

You are told the full fee before we begin, in writing. No surprise additions for uploads, revisions or acknowledgements. Government fees and taxes, where applicable, are shown separately, so businesses in Avadi always know exactly what the engagement costs them.

Support Through Audits and Hearings

When an ADT-01 audit intimation or a personal hearing date arrives, we compile the records, prepare the reconciliations and draft the submissions, and coordinate closely with your authorised representative. You walk into the proceeding prepared, not improvising in front of an officer.

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.

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 Avadi

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.

Marketplace Accounts That Stay Live

E-commerce platforms continuously validate seller GSTINs and filing status. A consistently compliant registration keeps your listings active and settlements flowing, with no sudden suspension of your online sales channel.

Growth Without Compliance Anxiety

New branches, new product lines and interstate sales all carry GST consequences. With standing professional support, you expand knowing registrations, invoicing and returns will keep pace with the business.

Compliance That Continues When You Travel

Illness, travel or a family function no longer threatens a deadline. With a standing external process holding your calendar and data trail, filings proceed on schedule whether or not you are at your desk.

Supplier Risk Caught Early

We spot suppliers who stop uploading invoices or filing returns and alert you before their default becomes your blocked credit, letting you recover amounts or switch vendors while the exposure is still small.

Credit Notes That Actually Reduce Your Tax

Sales returns, discounts and price revisions are adjusted through properly reported credit notes within the statutory window, so you never keep paying tax on turnover you have already reversed.

Reduced Dependence on One Employee

When GST knowledge lives inside a single staff member, their resignation becomes a compliance crisis. With our firm as the standing process, your filings continue uninterrupted regardless of internal staff changes.

Why a Specialist Matters

With ChennaiGST vs Doing It Yourself

AspectWith ChennaiGSTDIY / Unattended
Keeping up with changesRate changes, portal updates and new thresholds such as the Rs.5 crore e-invoice limit are tracked by us and applied to your case proactively.Changes are discovered after the fact — often through a rejected filing, a blocked e-way bill or a departmental letter.
Portal credentials and dataLogins handled by a small engaged team under strict confidentiality, with credentials stored securely and never passed onward.Passwords circulating on chats with freelancers and part-timers, and no accountability for who has accessed your business data.
When a notice arrivesA professional drafts the reply in the department's format and files it within the statutory window, such as thirty days for ASMT-11.You face departmental language alone, and a missed reply deadline can convert a simple query into a demand with penalty.
Late fees and interestFilings go in ahead of statutory dates, so the Rs.50-per-day late fee and 18 percent interest never arise.Late fees accumulate silently every delayed day, and interest on unpaid tax runs at 18 percent per annum.
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.
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 Avadi businesses

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

Notification

Special GST procedure for companies under insolvency resolution

Notification No. 11/2020-Central Tax · 2020-03-21

Where a company is undergoing corporate insolvency resolution under the Insolvency and Bankruptcy Code and is managed by an interim resolution professional or resolution professional, it is treated as a distinct person and must take a fresh GST registration in each State within thirty days of the professional's appointment. The entity files its first return covering the period from the insolvency commencement date, and can claim input tax credit on invoices received in that first return.

How we apply it: A Chennai company admitted into insolvency must obtain a fresh GSTIN under the resolution professional rather than continue on the old registration.

AAR Ruling

Electrical wiring harness classified as insulated wire, not a vehicle part

WABCO India Ltd - AAR Tamil Nadu, Order No. TN/10/AAR/2018, dated 27 September 2018 · 2018-09-27

The manufacturer supplied electrical wiring harness, essentially electrical wire with connectors at both ends, used in motor vehicles, and asked whether it should be classified as a motor vehicle part or as insulated electrical conductors. The Authority classified the product under heading 8544, which covers insulated wire and cable fitted with connectors, taxable at 9 percent central tax and 9 percent State tax following Notification No. 41/2017-Central Tax (Rate) dated 14 November 2017, the earlier rate having been higher.

Practical effect: Chennai auto component makers should classify by the tariff description of the article itself, not by the vehicle it eventually goes into.

Case Law

Interest cannot be recovered without first issuing a show cause notice

LC Infra Projects (P) Ltd v. Union of India — Karnataka High Court, judgment dated 22 July 2019 · 2019-07-22

The department demanded interest for delayed payment of tax and attached the taxpayer's bank account without first issuing any show cause notice. The High Court held that issuance of a show cause notice is a mandatory pre-condition before recovery of interest, because the taxpayer must have an opportunity to dispute the period and the computation. The recovery action and the bank attachment were quashed, with liberty to the department to proceed afresh after proper notice.

Practical effect: Interest cannot be lifted from your bank account without warning — insist on a show cause notice and a chance to verify the calculation.

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.

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 Avadi 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.
How much does GSTR-1 & GSTR-3B monthly filing cost in Avadi?
Our fee for GSTR-1 & GSTR-3B monthly filing in Avadi starts at Rs.749/month and is quoted in full before we begin — there are no hidden charges added later. The fee covers professional work end to end: document review, preparation, filing and follow-up until completion. Government fees or portal charges, where applicable, are separate and always shown to you upfront. For an exact quote based on your turnover and business type, call +91 - 9600 606 444 and a consultant will confirm it on the call.
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 Avadi can assess it the same day.
What is the due date for GSTR-3B in Tamil Nadu?
For monthly filers, GSTR-3B is due on the 20th of the following month. If you are registered in Tamil Nadu and have opted for the QRMP scheme, your quarterly GSTR-3B is due on the 22nd of the month following the quarter. GSTR-3B is the summary return through which you actually pay tax, so missing it attracts a late fee of Rs.50 per day (Rs.20 for nil returns) plus interest at 18 percent per annum on tax paid late.
What happens if I miss filing GSTR-3B this month?
A late fee of Rs.50 per day (Rs.20 per day for a nil return) accrues automatically, capped based on your turnover, and interest at 18 percent per annum applies on tax paid late. You also cannot file the next period's GSTR-1 until the pending GSTR-3B is filed, since returns must be filed sequentially. If two consecutive tax periods remain unfiled, e-way bill generation gets blocked, and continued default can lead to suspension of your GSTIN. File the pending return at the earliest; call +91 - 9600 606 444 and we can clear the backlog quickly.
My shop was closed for a month. Can I skip filing GST returns for that period?
No. Once you hold an active GSTIN, returns must be filed for every tax period regardless of business activity. If there were no sales and no purchases, you must file nil GSTR-1 and nil GSTR-3B for that month. Skipping creates a break in the sequential filing chain, blocks future returns, accumulates late fees and can eventually lead to suspension of registration. Nil returns take only minutes and can even be filed by SMS. If your business in Avadi has periods of inactivity, ask us about our low-cost nil filing plan.
A client paid me an advance. Do I raise an invoice or something else?
On receiving an advance, you issue a receipt voucher under Rule 50, not an invoice; the tax invoice follows when the service is actually supplied. GST is payable on advances received for services in the period of receipt, and the receipt voucher documents that liability. Advances for the supply of goods are not taxed at receipt for normal taxpayers under Notification 66/2017. If the rate is not determinable when the advance arrives, tax is paid at 18 percent, and if the nature of supply is not determinable, it is treated as inter-state. Service firms in Avadi with retainer billing should map this into their monthly cycle.
Is there a deadline for declaring credit notes for a financial year?
Yes, and it is strict. A credit note relating to an invoice of a financial year must be declared in your returns by 30 November following the end of that financial year, or the date of filing the annual return, whichever is earlier. After this date, you can no longer reduce your output tax through a GST credit note for that year's invoices; any adjustment becomes purely commercial with no tax benefit. Sales returns in Avadi businesses often surface months later, especially season-end returns from distributors, so sweep your pending returns and disputes each October and issue the credit notes in time.
Is a monthly ITC reconciliation service worth it for a small business near me in Avadi?
For most businesses claiming more than a lakh of ITC a month, yes. A monthly reconciliation matches every purchase invoice in your books against GSTR-2B, flags suppliers who have not filed, identifies blocked credits under Section 17(5), tracks the 180-day payment rule and produces a vendor follow-up list before the GSTR-3B due date of the 20th. The cost is typically far below the value of a single missed or disputed credit. ChennaiGST offers monthly reconciliation for businesses in Avadi starting at Rs.749, including vendor reminder emails. Call +91 - 9600 606 444 for a sample reconciliation of your latest month.
Is there a last date to claim input tax credit for a financial year?
Yes. Under Section 16(4), ITC for invoices and debit notes of a financial year must be claimed by the earlier of 30 November following the end of that financial year or the date of filing the annual return GSTR-9. So credit on a March 2026 invoice must be taken in a GSTR-3B filed on or before 30 November 2026. Credits discovered after this date are permanently lost, which is why a year-end reconciliation in September or October, comparing books, GSTR-2B and GSTR-3B for the full year, is essential for every business in Avadi.
What is the late fee for filing GSTR-9 after the due date?
From FY 2022-23 onwards, the late fee is turnover-linked. For turnover up to Rs.5 crore it is Rs.50 per day (Rs.25 CGST plus Rs.25 SGST) capped at 0.04 percent of turnover; for turnover between Rs.5 crore and Rs.20 crore it is Rs.100 per day with the same cap; and above Rs.20 crore it is Rs.200 per day capped at 0.5 percent of turnover. The fee accrues until the date of filing, so delays get expensive for larger businesses. Filing before 31 December avoids the entire cost.
What are the rules for numbering GST invoices?
The invoice serial number must be consecutive, must not exceed sixteen characters, and may contain alphabets, numerals and the special characters hyphen and slash, in one or multiple series. Each number must be unique for a financial year, so most businesses restart their series every April with a year prefix such as 2026-27/001. Gaps in a series invite questions during audit because officers may suspect unreported invoices, and cancelled invoice numbers should be retained in records with the cancelled copy. The document series you use must also be declared in Table 13 of GSTR-1 each period.
By when must I issue a tax invoice when I sell goods?
For goods, Section 31 requires the tax invoice to be issued before or at the time of removal of the goods, where the supply involves movement, or before or at the time of delivery or making the goods available in other cases. In simple terms, the invoice must travel with the goods; a lorry leaving your Avadi godown without an invoice is exposed to detention even if the e-way bill exists. For continuous supplies of goods with successive statements or payments, the invoice must be issued when each statement is issued or each payment is received.
What is the GST rate for salons, gyms and yoga centres?
From 22 September 2025, beauty and physical well-being services, covering salons, barbers, beauty parlours, gyms, fitness centres and yoga institutes, attract 5 percent GST without input tax credit, reduced from the earlier 18 percent. The condition attached to the concessional rate is important: because credit is barred, the GST paid on your rent, equipment, cosmetics and consumables becomes part of your cost base. Service businesses in Avadi moving to the 5 percent rate should reprice services keeping this embedded tax in mind, and must not continue charging 18 percent, since excess tax collected has to be deposited with the government.
Our security agency does not charge GST on its bills. Is that correct?
Quite possibly, yes. Since 1 January 2019, security services meaning supply of security personnel, when provided by any person other than a body corporate to a registered person, fall under reverse charge, so the agency correctly bills without tax and you pay 18 percent through GSTR-3B in cash, claiming ITC. If your security agency is a private limited company, however, RCM does not apply and it must charge GST on its invoice under forward charge. Composition taxpayers as recipients are excluded from this entry. Confirm the agency's constitution from its PAN, because paying under the wrong mechanism creates trouble for both sides.
Which everyday goods now attract 5 percent GST?
The 5 percent slab now covers most household essentials that earlier fell in the 12 or 18 percent brackets: soaps, shampoos, toothpaste and toothbrushes, hair oil, bicycles, kitchen utensils and tableware. Packaged foods such as butter, ghee, cheese, namkeens, sauces, pasta, biscuits and chocolates are also at 5 percent, as are most medicines, medical devices and agricultural machinery. Apparel and footwear priced up to Rs.2,500 per piece attract 5 percent as well. Retailers in Avadi should update billing software rate masters item by item rather than assuming old rates continue.
What GST rate applies to cars and two-wheelers now?
Small cars, meaning petrol cars up to 1200cc and diesel cars up to 1500cc with length not exceeding 4 metres, attract 18 percent GST, down sharply from the earlier 28 percent plus cess. Larger cars, SUVs above these specifications, attract the 40 percent rate, but with the compensation cess gone, the overall burden on most of them is still lower than before. Motorcycles up to 350cc are at 18 percent, while those above 350cc attract 40 percent. Electric vehicles continue at a concessional 5 percent. Dealers must also apply these rates to demo vehicle sales.
Is there really a penalty for not displaying my GST number at my shop?
Yes. Rule 18 of the CGST Rules requires every registered person to display the registration certificate in a prominent location at the principal place of business and every additional place, and to display the GSTIN on the name board at the entry of each such premises. There is no separate penalty provision for this lapse, so officers invoke the general penalty under Section 125, which can extend to Rs.25,000 under CGST with a matching state penalty. Inspection teams visiting Avadi markets routinely check name boards first, so a few hundred rupees of signage is the cheapest compliance in the entire GST law.
Do you provide GSTR-1 & GSTR-3B monthly filing for businesses on Vellanur?
Yes. We serve businesses on and around Vellanur in Avadi — shops, offices, godowns and home-run businesses alike. Document pickup can be arranged at your premises, or you can send everything on WhatsApp and complete monthly returns without leaving your counter. Call +91 - 9600 606 444 and mention your location; a consultant will confirm the fee and timeline immediately.
What is the process for GSTR-1 & GSTR-3B monthly filing?
The process runs in clear stages: Monthly data collection; GSTR-1 preparation and filing; ITC reconciliation with GSTR-2B; Tax computation and confirmation. A senior consultant reviews your file at each stage rather than passing it to a data-entry desk, and you receive a confirmation with the filed documents once it is complete. You always know which stage your work is at — we update you on WhatsApp instead of leaving you to follow up.
Do you provide gst return filing for small businesses and proprietorships in Avadi?
Yes. A large share of our clients in Avadi are proprietors, small traders, shop owners, freelancers and family businesses rather than large companies. The fee of Rs.749/month and the process are the same regardless of size, and we explain the compliance position in plain language — in Tamil or English — so you understand what is being filed on your behalf and why.
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