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

GSTR-1 & GSTR-3B Monthly Filing for Shops and Offices on Metro Nagar, Porur

Late fees, blocked credit and mismatch notices cost far more than professional help ever will. We complete GSTR-1 & GSTR-3B Monthly Filing for Porur businesses from Rs.749, matching every figure against portal data before anything reaches the department.

We serve businesses on and around Metro 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 Metro 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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Local Expertise

Trade Profile and GST Jurisdiction for Metro 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. That commercial character shapes the GST questions we see from Porur every week — registrations, monthly returns, credit mismatches and departmental queries. We deliver GSTR-1 & GSTR-3B Monthly Filing for businesses in Porur, and clients also reach us from Valasaravakkam and Ramapuram nearby. Documents move over WhatsApp, drafts are approved before filing, and a senior consultant reviews every submission, so distance from our office never dilutes the quality of the work.

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 Educational Institutions in Porur
Education enjoys exemption only within defined walls: institutions providing recognised board or university qualifications are exempt under Entry 66 of Notification 12/2017, along with their transport, catering and examination services to students. Coaching centres, skill academies and training institutes fall outside the entry and pay 18 percent. An organisation running both a recognised school and a commercial coaching wing must segregate the streams, reverse proportionate input credit under Rule 42 on the exempt side, and still count exempt fees within aggregate turnover for registration. A specialist structures the two activities, fee invoicing and credit reversals so the exemption claimed for one stream is never endangered by the other.
GSTR-1 & GSTR-3B Monthly Filing in Porur is priced from Rs.749 and includes document verification, reconciliation with portal data, senior review, filing and a complete acknowledgement set archived for your records.
Why Us

Why Metro Nagar, Porur Businesses Choose ChennaiGST

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

Reverse Charge Tracked, Not Forgotten

Freight paid to transporters, advocate fees, imported services and other notified supplies attract GST under reverse charge, with self-invoicing where the supplier is unregistered. We maintain a running RCM check every period, because this is the liability self-filers most consistently miss.

Correct HSN Codes and Rates, Verified

GSTR-1 requires four-digit HSN reporting for turnover up to Rs.5 crore and six digits above it, and a wrong code often means a wrong rate. We verify the classification of what you actually supply, so your invoices and returns rest on defensible codes.

We Work with Your Existing Software

Tally, Zoho Books, Busy, marketplace reports, plain Excel or even a handwritten bill book — we take your data in whatever form your Porur business already maintains it. You are never forced to buy new software or retrain staff just to become our client.

One Dedicated Point of Contact

You deal with one accountable person who knows your business, your turnover pattern and your filing history. No repeating your story to a new voice every month, and no file falling between two desks when a deadline is approaching.

Experience Across Trades and Sectors

Traders, manufacturers, contractors, e-commerce sellers, professionals and service exporters — we have handled GST for all of them. Whatever mix of goods and services your Porur business supplies, the rate, classification and place-of-supply questions have almost certainly crossed our desk before.

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 Porur never leave marketplace deductions unclaimed.

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.

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.

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.

Faster GST Refunds

Complete RFD-01 applications with proper statements and annexures move through the system faster and attract fewer deficiency memos, which means export and inverted-duty refunds reach your bank account sooner.

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.

Lower Total Cost of Compliance

A fixed professional fee is almost always cheaper than the combination of late fees, interest, lost credit and staff hours that informal, last-minute compliance quietly accumulates over a year.

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.

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.
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.
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.
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.
Time costRoughly an hour a month to send data and approve drafts; the portal work, reconciliation and follow-up are ours.Hours every month lost to portal errors, JSON files, OTP failures and reworking figures — usually on the due date itself.
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.
Case Law & Notifications

What the Department and the Courts Have Said — relevant to Porur businesses

We track every notification, circular and judgment that changes a filing position, so your returns and replies reflect the current law.

GST Council

Council settles the 5, 12, 18 and 28 per cent rate structure

4th GST Council Meeting, New Delhi — 3-4 November 2016 (Signed Minutes, Agenda Item 3) · 2016-11-03

Summing up a long debate over five-band and six-band options, the Chairperson proposed and the Council accepted a structure with one exempt category covering food grains and similar essentials, a lower rate of five per cent for goods consumed by vulnerable sections, standard rates of 12 and 18 per cent, and a higher slab of 28 per cent. A committee of officers was directed to fit individual goods and services into those slabs. Proposals for a 40 per cent slab were rejected.

How we apply it: Every rate dispute a Chennai business faces today traces back to this four-slab architecture and to the fitment exercise it launched.

AAR Ruling

Printing leaflets on the printer's own paper attracts 18 percent

Coronation Arts Crafts - AAR Tamil Nadu, Advance Ruling No. 19/ARA/2022, dated 31 May 2022 · 2022-05-31

A printing house printed leaflets and similar material using content supplied by the customer but paper, ink and other physical inputs of its own. It asked for the correct classification and rate. The Authority held that this is a composite supply in which the printing service is the principal supply, and the supply is therefore taxable at 18 percent. The customer supplying only the content or artwork did not alter the classification.

Why this matters: A Chennai printer supplying its own paper should charge 18 percent on job printed leaflets instead of assuming a lower book rate.

Portal Advisory

Separate row in GSTR-3B for supplies on which the e-commerce operator pays the tax

GSTN Advisory, 2022 — Table 3.1.1 of Form GSTR-3B introduced by Notification No. 14/2022-Central Tax, dated 5 July 2022 · 2022

Table 3.1.1 was added to GSTR-3B so that supplies notified under Section 9(5), such as passenger transport, restaurant service supplied through an app, hotel accommodation and housekeeping, are reported separately. The e-commerce operator reports the value and pays the tax in row (i), while the underlying supplier reports the same value in row (ii) and pays nothing on it, so the turnover is not counted twice across the two returns.

What to do about it: Chennai restaurants and cab operators supplying through an app must still report those sales in Table 3.1.1(ii) even though the platform 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.

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.
Do you provide gst return filing for small businesses and proprietorships in Porur?
Yes. A large share of our clients in Porur 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.
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.
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 Porur maintains a verified HSN master for every client.
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.
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.
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.
We hire security guards from an agency. Should they charge GST or should we pay it ourselves?
Check the agency's constitution. Since 1 January 2019, security services by way of supply of security personnel provided by any person other than a body corporate to a registered person fall under reverse charge, so your business pays the 18 percent directly and claims credit. If the agency is a body corporate, such as a private limited company, it charges GST under forward charge on its invoice. Recipients registered under the composition scheme are excluded from this reverse charge entry. Businesses in Porur commonly pay agencies' forward-charge invoices while also missing their own RCM cases, so an annual review of security and manpower bills is worthwhile.
I claimed some ITC wrongly last year. What interest and penalty apply if I reverse it now?
Under Section 50(3) as amended, interest at 18 percent per annum applies where wrongly availed credit has also been utilised, calculated from the date of utilisation until reversal; credit that was availed but never utilised, because your ledger balance never fell below the wrong amount, attracts no interest. Voluntary reversal is done through GSTR-3B or by payment in DRC-03, and paying before any show cause notice generally avoids or minimises penalty. If the department has already issued ASMT-10 or DRC-01, reply timelines apply, so act quickly. Call +91 - 9600 606 444 and ChennaiGST can compute the exact interest and file the DRC-03.
My supplier has not uploaded an invoice and it is missing from GSTR-2B. Can I still claim the ITC?
No, not until it appears. Since 1 January 2022, Section 16(2)(aa) permits ITC only on invoices furnished by the supplier in GSTR-1 and communicated to you in GSTR-2B; the earlier provisional credit tolerance is gone. Claiming credit on a missing invoice invites a Rule 88D intimation and reversal with interest at 18 percent. The practical remedy is vendor follow-up: withhold the tax portion of payment until the supplier uploads, and claim the credit in the month it appears in GSTR-2B, subject to the overall time limit of 30 November following the financial year. Vendor discipline clauses in purchase orders help enormously.
I heard old ITC demands for 2017-18 to 2020-21 were given relief. What is Section 16(5)?
The Finance (No. 2) Act 2024 inserted Section 16(5) retrospectively, allowing ITC for financial years 2017-18 to 2020-21 if it was claimed in a GSTR-3B filed on or before 30 November 2021, even though it breached the original Section 16(4) deadline. Section 16(6) gives similar relief for returns filed after revocation of a cancelled registration. Where demands were already confirmed on this ground, a special rectification procedure was notified for taxpayers to have such orders corrected. If your Porur business paid or is contesting a 16(4) demand for these years, have the eligibility under 16(5) examined; call +91 - 9600 606 444 for a review.
If I open a bulk bag and sell rice loose by weight, is that sale taxable?
No. The 5% levy on specified food items applies only when they are supplied in pre-packaged and labelled form in packs up to 25 kilograms. When a retailer opens bulk stock and weighs out loose quantities against each customer's order, the supply is not of a pre-packaged commodity, so it remains exempt. What you cannot do is sell an intact labelled retail pack and bill it as loose. Keep purchase records showing bulk procurement and maintain the loose counter separately from the packed shelf, because officers test this distinction during inspections of grocery businesses. When in doubt on a product, call +91 - 9600 606 444.
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.
I declare income under Section 44ADA. Does that mean I am exempt from GST?
No, this is a common myth. Section 44ADA is a presumptive taxation scheme under the Income Tax Act that lets professionals declare fifty percent of gross receipts as income; it has nothing to do with GST. GST liability depends solely on aggregate turnover crossing the registration threshold and the nature of your supplies. In fact, the two departments now cross-match data, so gross receipts reported in your ITR and Form 26AS that exceed the GST turnover you declared are a known trigger for notices. Treat the two laws as parallel obligations, each with its own limits and filings.
Which daily-use grocery items became cheaper under GST from September 2025?
The 56th GST Council's rationalisation, effective 22 September 2025, moved a large basket of daily essentials from 12% or 18% down to 5%, including butter, ghee, cheese, namkeens, sauces, pasta, chocolates, biscuits, cornflakes, hair oil, shampoo, soaps and toothpaste. UHT milk, pre-packaged paneer and all Indian breads such as roti, chapati and paratha became nil rated. Aerated and caffeinated beverages, by contrast, went to the 40% demerit rate. Grocery and supermarket billing masters needed a near-complete refresh from that date, and old stock is simply sold at the new rate applicable on the date of supply.
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.
Is GST payable on my YouTube AdSense earnings?
AdSense payments come from a Google entity located outside India and are remitted in convertible foreign exchange, so for an Indian creator this revenue generally qualifies as export of services, zero-rated when supplied under an LUT after registration. The income still counts towards your Rs.20 lakh aggregate turnover, so a creator whose combined receipts cross the threshold must register even if the entire revenue is export. Brand sponsorships from Indian companies, by contrast, are domestic supplies taxable at 18 percent. Keep the remittance advices safely, as they establish the forex receipt if you later claim a refund of input tax credit.
When can goods move on a delivery challan instead of a tax invoice?
Rule 55 permits movement on a delivery challan where the transportation is not itself a supply: sending inputs or capital goods for job work, taking goods to an exhibition or for approval where the sale is not yet certain, supplying liquid gas where the quantity is unknown at removal, and moving goods in semi-knocked-down form in multiple consignments, where the full invoice travels with the first lot. The challan is prepared in triplicate and an e-way bill is still required where value thresholds are crossed. Goods sent on approval must be invoiced within six months, failing which tax becomes payable.
How much does GSTR-1 & GSTR-3B monthly filing cost in Porur?
Our fee for GSTR-1 & GSTR-3B monthly filing in Porur 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.
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 long does GSTR-1 & GSTR-3B monthly filing take in Porur?
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.
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