Chennai's dedicated GST practice · GSTR-1 due 11th · GSTR-3B due 20th/22nd
Porur · PIN 600116

GSTR-1 & GSTR-3B Monthly Filing near Vigneshwara Nagar, Porur, Chennai

Get GSTR-1 & GSTR-3B Monthly Filing done right in Porur without portal struggles or missed deadlines. Our Chennai-based consultants manage the entire process from Rs.749, with same-day responses and every submission checked by a senior practitioner before it is filed.

We serve businesses on and around Vigneshwara Nagar — 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 Vigneshwara Nagar, Porur
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 Vigneshwara Nagar, Porur

Porur commands the junction of Mount Poonamallee Road and Arcot Road, the gateway to Chennai's western IT corridor, with the Sri Ramachandra medical campus, IT offices, construction firms and logistics yards nearby. IT and ITES exporters need LUT filings under RFD-11 each financial year and refunds through RFD-01, while contractors face Section 17(5) credit blocks and site-to-site e-way bills. From a first registration to the annual return, the full range of GSTR-1 & GSTR-3B Monthly Filing is available to Porur businesses without stepping far from the shop or office — documents travel over WhatsApp, and our Chennai premises are open to anyone who prefers a face-to-face discussion. We serve Valasaravakkam and Ramapuram on the same footing, applying one rule everywhere: reconcile before filing, file before the due date, and keep the client informed at every stage.

GST jurisdiction for Porur (PIN 600116): businesses here generally fall under the CGST Chennai South Commissionerate. We regularly represent clients from Porur 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 Builders and Contractors in Porur
Under-construction residential sales are taxed at 1 percent for affordable housing and 5 percent for other units, both without input credit, while commercial works contracts run at 18 percent with credit. Builders must procure at least 80 percent of inputs and input services from registered suppliers each year; any shortfall attracts tax under reverse charge, and cement bought from unregistered dealers is taxed under reverse charge at its full rate regardless of the shortfall test. Development rights and joint development agreements carry their own liability trigger points. A specialist runs the 80-20 computation annually and tracks reverse charge on cement and landowner area sharing so project costing stays accurate.
For GSTR-1 & GSTR-3B Monthly Filing in Porur the working timeline is Filed before the 11th and 20th of every month, counted from the point your documents are complete. The realistic completion date is confirmed to you in writing before work starts, and the acknowledgement is shared on WhatsApp immediately after filing.
Why Us

Why Vigneshwara Nagar, Porur Businesses Choose ChennaiGST

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

WhatsApp Updates at Every Stage

You receive a WhatsApp message when documents are received, when the draft is ready for your approval, and when the return or application is filed, along with the acknowledgement. You never have to call and ask what is happening with your file.

GSTR-9 and GSTR-9C Handled In-House

The annual return and, where turnover crosses Rs.5 crore, the self-certified reconciliation statement in GSTR-9C are prepared by the same team that filed your monthly returns. Nothing about your year has to be rediscovered or explained to a stranger in December.

Multi-GSTIN and Branch Coordination

Businesses with registrations in more than one State, or multiple branches under one PAN, face cross-charge, stock transfer and input service distribution questions that single-GSTIN firms never see. We keep all your registrations consistent with each other, not just compliant individually.

Zero Tolerance for Late Fees and Interest

GSTR-3B late fees run at Rs.50 per day and interest at 18 percent per annum on unpaid tax. Our internal cut-offs sit days ahead of statutory due dates precisely so that our clients never hand the department a rupee they did not owe.

Proactive Alerts Before Problems Become Notices

If your GSTR-1 and GSTR-3B start drifting apart, if a large supplier stops filing, or if your turnover approaches the e-invoice threshold, we flag it to you immediately. Early warnings from our side are cheaper than departmental letters later.

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.

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 Porur

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.

Export Benefits Fully Utilised

With the LUT filed at the start of each financial year and refund claims tracked to credit, exporters supply without blocking funds in IGST and recover accumulated credit on schedule.

Annual Returns Without the Year-End Scramble

Because monthly data is reconciled as it happens, GSTR-9 preparation before the 31 December due date becomes a review exercise rather than a painful reconstruction of twelve untidy months.

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.

Notices Answered Within the Time Limit

Statutory windows such as thirty days for an ASMT-11 reply are tracked from the day a notice arrives, so responses go in on time, complete, and with your best case properly presented.

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.

Fewer Errors at the Billing Counter

Your billing staff are guided on invoice fields, rates and series discipline, so mistakes are prevented where they originate — at the counter — instead of being repaired later in the returns.

Why a Specialist Matters

With ChennaiGST vs Doing It Yourself

AspectWith ChennaiGSTDIY / Unattended
Risk of noticesGSTR-1, GSTR-3B and GSTR-2B reconciled before filing, removing the mismatches that trigger most scrutiny notices.Inconsistent figures across returns quietly build a mismatch history that surfaces later as ASMT-10 scrutiny or a demand notice.
Registration and amendmentsQuery-resistant applications prepared correctly the first time, with supporting documents matched to what proper officers actually verify.Repeated clarification memos and resubmissions, with weeks lost because a rent agreement or premises photograph did not meet expectations.
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.
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.
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.
GST Law Desk

Recent GST Law You Should Know — relevant to Porur businesses

Real notifications, rulings and case law our consultants track — and apply to client filings and notice replies.

Notification

Rule 37A: reverse credit if your supplier never files GSTR-3B

Rule 37A, CGST Rules, 2017, inserted by Notification No. 26/2022-Central Tax · 2022-12-26

Rule 37A makes the buyer responsible where a supplier declares an invoice in GSTR-1 but fails to file the corresponding GSTR-3B by 30 September following the end of that financial year. The recipient must reverse the input tax credit availed on that invoice by 30 November of that year, failing which interest under Section 50 runs. If the supplier later files the return and pays tax, the recipient may re-avail the credit without any time limit.

Practical effect: Track supplier GSTR-3B compliance annually, reverse credit for defaulting suppliers by 30 November, and re-claim it once the supplier regularises.

Portal Advisory

Table 3.2 of GSTR-3B: locking announced, then temporarily relaxed

GSTN Advisories dated 11 April 2025 and 16 May 2025 — Table 3.2 of GSTR-3B · 2025-04-11

GSTN first advised that from the April 2025 period, auto-populated values in Table 3.2 of GSTR-3B, covering inter-state supplies to unregistered persons, composition taxpayers and UIN holders, would become non-editable, with corrections routed through GSTR-1A. After taxpayer representations, a 16 May 2025 advisory kept Table 3.2 editable for the time being. The locking was later subsumed in the broader hard-locking of GSTR-3B liability during 2025.

What it means for you: Report place-of-supply details correctly in GSTR-1 itself, since state-wise B2C figures in GSTR-3B are moving beyond manual correction.

Circular

Clarification on when vehicle hire attracts reverse charge

Circular No. 130/49/2019-GST dated 31.12.2019 · 2019-12-31

CBIC explained the scope of the reverse charge entry on renting of motor vehicles. It clarified that the entry applies where the supplier is any person other than a body corporate who pays tax at 5 per cent, supplies the service to a body corporate, and does not issue an invoice charging tax at 12 per cent with full input tax credit. Where the supplier is itself a body corporate, or charges 12 per cent, the recipient has no reverse charge liability.

What to do about it: Chennai companies should obtain a written confirmation of the rate and constitution of their cab operator, since that single fact decides who pays the tax.

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 Porur 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.
Which GST office handles Porur businesses?
Businesses in Porur (PIN 600116) generally fall under the CGST Chennai South 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.
How is interest calculated if I pay GST late?
Interest is charged at 18 percent per annum under Section 50 of the CGST Act, calculated day-wise from the due date until the date of payment. Following the amendment to Section 50, interest on delayed GSTR-3B filing applies only on the portion of tax paid through the electronic cash ledger, not on the amount settled using input tax credit. For example, a cash liability of Rs.1,00,000 paid 30 days late attracts roughly Rs.1,479 as interest. We compute this precisely before filing so clients in Porur never overpay or underpay.
What is the difference between GSTR-1 and GSTR-3B?
GSTR-1 is a detailed invoice-wise statement of your sales, filed by the 11th of the next month. It does not involve any tax payment but it feeds your customers' GSTR-2B for input tax credit. GSTR-3B is a self-declared summary return, due on the 20th, where you report total sales, claim input tax credit and pay the net tax in cash or through credit. Both must match; mismatches between GSTR-1 and GSTR-3B are a common trigger for notices from the department, which is why we reconcile them before every filing.
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 Porur can assess it the same day.
What is a B2C large invoice and what is the current threshold?
A B2C large invoice is an inter-state supply to an unregistered person exceeding the notified value threshold, which was reduced from Rs.2.5 lakh to Rs.1 lakh. Such invoices must be reported individually in Table 5 of GSTR-1 with the place of supply, instead of being merged into the consolidated B2C summary. The rule helps states track high-value consumer sales flowing across borders. If your Porur showroom occasionally bills an unregistered customer from another state above Rs.1 lakh, your billing and returns process must flag it for invoice-wise reporting, or GSTR-1 validations and later scrutiny will surface the gap.
Can I issue a single credit note against several invoices?
Yes. Since the amendment to Section 34 by the CGST (Amendment) Act, 2018, effective 1 February 2019, the law permits one or more credit notes to be issued against one or more tax invoices of a financial year. A distributor giving a season-end adjustment to a retailer can therefore issue one consolidated credit note covering dozens of invoices, rather than one note per bill. When reporting it in GSTR-1, the portal accepts credit notes without invoice-wise linking for this reason. Maintain a working annexed to the credit note listing the invoices covered, because in scrutiny the officer will ask you to establish the linkage and the arithmetic.
My medical shop also sells supplements, cosmetics and baby products. Do they all take the medicine rate?
No, and this is where pharmacies slip. Only items answering the description of drugs and medicaments take 5% or nil. Nutraceuticals and protein supplements generally attract 18%, beauty and makeup preparations 18%, while daily-use items such as soaps, shampoos and toothpaste came down to 5% in September 2025. Each product must be mapped to its own HSN code and rate in your billing software, and your GSTR-1 HSN summary must reflect that mix. A single wrong default rate applied across the counter creates either short payment or overcharging. ChennaiGST runs product-master audits for pharmacies in Porur; call +91 - 9600 606 444 to schedule one.
My business had zero sales this month. Do I still need to file GST returns?
Yes. Every registered taxpayer must file returns for every tax period, even when there are no sales, no purchases and no tax liability. In that case you file nil GSTR-1 and nil GSTR-3B. Failure to file nil returns attracts a late fee of Rs.20 per day per return, capped at Rs.500 per return, and breaks the sequential filing chain. Prolonged non-filing can lead to suspension and eventually cancellation of your GSTIN. Our nil return plan for dormant businesses in Porur starts at just Rs.749 per month.
Is ITC available on food, catering and canteen expenses for our factory staff?
Section 17(5)(b) blocks credit on food, beverages and outdoor catering, but with two useful exceptions. First, where you use catering as an input for making an outward supply of the same category, such as a caterer subcontracting another caterer, credit is allowed. Second, where providing the facility is obligatory for the employer under any law, credit is allowed; the classic case is a statutory canteen required under the Factories Act for factories employing more than 250 workers. Even then, credit is typically restricted to the cost borne by the employer, not amounts recovered from employees. Factories around Porur should keep the statutory obligation documented in their credit file.
Who has to file the GSTR-9 annual return?
GSTR-9 is the annual return for regular taxpayers, consolidating the outward supplies, input tax credit and tax paid reported through the year's GSTR-1 and GSTR-3B filings. As per CBIC notifications, filing is optional for taxpayers with aggregate turnover up to Rs.2 crore for the relevant financial year, and mandatory above that. Composition taxpayers file GSTR-4 instead, and e-commerce operators collecting TCS under Section 52 file GSTR-9B. Even where optional, filing GSTR-9 is often advisable because it locks your annual position before any departmental scrutiny. We prepare GSTR-9 for businesses across Porur every year.
Which purchases commonly attract GST under reverse charge for a regular business?
Under Section 9(3), the recipient pays tax on notified supplies. The entries a typical business in Porur encounters are: goods transport agency services, services of advocates and arbitral tribunals, sponsorship provided to companies and partnership firms, services of directors, security services from non-corporate providers, renting of passenger motor vehicles from non-corporate operators charging five percent, import of services, and renting of property from unregistered landlords in notified cases. Each month, scan your expense ledger for these heads, pay the tax in cash through GSTR-3B, and claim it back as ITC where eligible. Missed RCM is among the top audit findings; call +91 - 9600 606 444 for an RCM exposure review.
What are the GST rates on gold, silver and diamond jewellery?
The special rates on precious metals were retained in the GST 2.0 restructuring. Gold, silver and articles of jewellery attract 3 percent GST, rough and unworked diamonds attract 0.25 percent, and jewellery making charges billed separately attract 5 percent. When a jeweller bills a customer, the metal value and making charges can appear as separate line items with their respective rates on the same tax invoice. Old gold purchased from an unregistered customer in exchange transactions does not attract GST in the customer's hands, but valuation of the net supply must be documented carefully.
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 Porur 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.
I returned an advance because the deal was cancelled. What document do I issue?
It depends on how far the paperwork went. If you had issued only a receipt voucher and no tax invoice, you issue a refund voucher under Rule 51 when returning the advance, and the tax paid on that advance can be adjusted. If a tax invoice had already been issued, the cancellation is handled through a credit note under Section 34 instead. The refund voucher records the original receipt voucher reference, the amount refunded and the tax involved. Event managers and contractors see cancellations regularly, and using the wrong document between these two is a common reconciliation error.
I have taken a house on rent and I am GST registered. Does reverse charge hit my house rent?
Only in defined situations. From 18 July 2022, renting of a residential dwelling to a registered person attracts 18 percent under reverse charge in the tenant's hands. However, where a registered proprietor rents the dwelling in a personal capacity for use as his own residence, and on his own account rather than for the business, the exemption applies and no tax arises. If a company takes a flat as a guest house or for employee accommodation, RCM applies, and note that ITC on such rent may face challenge as a personal consumption expense. Document the purpose of the tenancy in the rent agreement so the correct treatment is defensible.
I am a composition dealer. Which returns apply to me and when?
Composition taxpayers do not file GSTR-1 or GSTR-3B. Instead, you pay tax every quarter through statement CMP-08, due by the 18th of the month following the quarter, and file one annual return, GSTR-4, by 30 June following the financial year. The scheme is available for turnover up to Rs.1.5 crore for goods, with a separate 6 percent scheme for service providers up to Rs.50 lakh. Missing CMP-08 for consecutive quarters can block your e-way bill facility. Our composition package covers all four CMP-08 filings and the annual GSTR-4 at Rs.749 per year.
What is the GST rate for restaurants and food delivery now?
Standalone restaurants, eateries and cloud kitchens charge 5 percent GST without input tax credit. Restaurants located in hotels where the room tariff exceeds Rs.7,500 per day fall in the specified premises category and charge 18 percent with input tax credit. Food ordered through e-commerce operators such as Swiggy and Zomato is taxed at 5 percent, with the platform liable to pay the tax on restaurant services supplied through it. A restaurant in Porur paying 5 percent must remember that GST on its rent, gas and equipment purchases becomes a cost, since credit is barred.
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.
What documents are required for GSTR-1 & GSTR-3B monthly filing in Porur?
For GSTR-1 & GSTR-3B monthly filing you will generally need: Sales invoices or sales register for the month, Purchase invoices or purchase register, Credit notes and debit notes issued during the month, GST portal login credentials, Bank statement for the period, if reconciliation is needed. The exact list depends on your constitution — proprietorship, partnership, LLP or company — and on the specifics of your case. Send what you have on WhatsApp to +91 - 9600 606 444 and we will confirm within the same working day exactly what else is needed, so nothing is rejected later for a missing paper.
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.
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