Chennai's dedicated GST practice · GSTR-1 due 11th · GSTR-3B due 20th/22nd
GSTR-1 & GSTR-3B Monthly Filing in Mathur MMDA does not have to mean portal errors, guesswork and due-date tension. For a fixed fee starting Rs.749, an accountable Chennai practice prepares, reconciles, reviews and files — and remains answerable long after the acknowledgement arrives.
We serve businesses on and around 117th Street — document pickup, in-person consultation at our Porur office, or fully online over WhatsApp.
Share your number — a senior GST consultant calls you back within 30 minutes.
Businesses in Mathur MMDA looking for GSTR-1 & GSTR-3B Monthly Filing want two things: work done correctly and someone answerable when questions come. Mathur MMDA is the Housing Board and MMDA township laid out in numbered main, cross and serial streets off Kamarajar Salai, between the Inner Ring Road and Madhavaram Milk Colony Road. Contractors, fabricators, tanker operators and labour suppliers serving the Manali petrochemical belt at MFL and CPCL sit alongside colony supermarkets, bakeries and hardware shops. Works-contract classification, TDS under Section 51 from PSU buyers and GSTR-2B mismatches dominate the compliance load. We serve this belt — including Manali and Manali New Town — 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.
Not a bulk-filing portal. A senior consultant knows your file, your jurisdiction and your deadlines.
Tally, Zoho Books, Busy, marketplace reports, plain Excel or even a handwritten bill book — we take your data in whatever form your Mathur MMDA business already maintains it. You are never forced to buy new software or retrain staff just to become our client.
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 Mathur MMDA never writes back to you as a demand years later.
A new GSTIN comes with obligations nobody explains at approval — the invoice series rules, displaying the registration certificate and GSTIN at your premises, and the first return cycle. We walk new registrants in Mathur MMDA through each of these so month one starts correctly.
E-invoicing is mandatory once turnover crosses Rs.5 crore and e-way bills apply to goods movements above Rs.50,000. We set up, train and troubleshoot both systems, so your despatches from Mathur MMDA are never held up by a compliance gap at the gate.
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.
Your cash ledger, credit ledger and liability register are reviewed regularly, not just at filing time. Excess balances are flagged for use or refund, and where a genuine slip surfaces, a voluntary payment through DRC-03 settles it before it can mature into a notice.
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.
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.
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.
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.
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.
Send these on WhatsApp (+91 - 9600 606 444) and we take it forward the same day.
Timeline: Filed before the 11th and 20th of every month · No hidden charges · GST invoice provided
Rs.7,999/year
Practical outcomes our clients measure us by.
Large buyers check vendor GST compliance before releasing payments and renewing contracts. A clean filing record with timely GSTR-1 uploads keeps your invoices reflecting in their GSTR-2B and your payments unblocked.
Tax positions, rate choices and credit calls are documented as they are made, so if a question arises years later, the reasoning and evidence are on file rather than in someone's fading memory.
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.
Getting IGST versus CGST and SGST right at the invoice stage spares you the painful cycle of paying the correct head again and pursuing a refund of the amount paid under the wrong one.
Correct, complete tax invoices signal a well-run business to customers, vendors and banks alike, quietly strengthening your credibility in every transaction where your paperwork is seen.
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.
| Aspect | With ChennaiGST | DIY / Unattended |
|---|---|---|
| Input tax credit | Purchase register matched against GSTR-2B each period, with defaulting suppliers chased so eligible credit is actually captured. | Credit claimed from books alone; mismatches with GSTR-2B mean lost credit or excess claims that invite departmental queries. |
| Due-date tracking | A 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. |
| Time cost | Roughly 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. |
| When a notice arrives | A 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 interest | Filings 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 keeping | Every 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. |
117th Street is a residential street in Mathur MMDA, about 650 m north-east of the centre of Mathur MMDA. The same consultant covers the streets immediately around it — 83rd Street (about 150 m); 3rd Main Road (about 300 m); 4th Cross Street (about 350 m); 2nd Cross Street (about 500 m) — so a site visit on 117th Street can usually be combined with other work in Mathur MMDA on the same trip. For GST purposes an address on 117th Street falls under the Chennai North CGST Commissionerate, and the Mathur MMDA pincode is 600068.
Road classification and position from OpenStreetMap; distances are straight-line and approximate. Jurisdiction must be confirmed on your own registration certificate.
Selected notifications, Council decisions and court rulings that practising consultants are applying to live cases.
GSTN Advisory dated 25 April 2025 — Phase-III of HSN reporting in Table 12 of GSTR-1/1A · 2025-04-25
GSTN implemented Phase-III of mandatory HSN reporting in Table 12 of GSTR-1 and GSTR-1A from the May 2025 return period, after the change was deferred from earlier periods. Manual keying of HSN codes is replaced by selection from a dropdown, Table 12 is split into separate B2B and B2C tabs, and new value validations compare the taxable values reported across tables. Table 13, the summary of documents issued, also became mandatory. Taxpayers up to Rs 5 crore turnover report 4-digit codes; larger taxpayers report 6-digit codes.
What to do about it: Update your billing software's HSN masters so every item carries a valid 4 or 6 digit code that matches the portal dropdown.
Notification No. 12/2025-Central Tax (Rate), dated 17 September 2025 · 2025-09-17
The old and used motor vehicle notification of January 2018 referred to Schedule IV of the 2017 rate notification to identify the vehicles it covered. Since that notification was superseded, this amendment substitutes a reference to Schedule II or Schedule III of the new goods rate notification with effect from 22 September 2025. The margin-based valuation and the bar on having availed input tax credit continue exactly as before; only the cross-reference changes.
Practical effect: Second-hand vehicle dealers need not change their computation method, but should quote the corrected notification reference in invoices and replies to officers.
Nithiyashree Ladies Hostel - AAR Tamil Nadu, Advance Ruling No. 77/AAR/2023, dated 4 September 2023 · 2023-09-04
The applicant ran a ladies hostel in premises it had itself taken on rent and supplied accommodation together with food and related services. It sought exemption on the footing that this was renting of residential accommodation. The Authority held the supply classifiable under heading 9963 and taxable at 9 percent central tax and 9 percent State tax, treating hostel accommodation with attached services as a taxable service and not as renting of a residential dwelling for use as a residence.
How we apply it: Chennai hostel and paying guest operators should not assume exemption; the outcome turns on the exact facts and on later High Court rulings.
References are provided for general information. Verify the current position on gst.gov.in or cbic.gov.in before acting.
Straight answers from practising GST consultants — based on the CGST Act, current CBIC notifications and day-to-day portal experience.
Mon-Sat: 9.00 AM - 8.00 PM · Sunday: WhatsApp support only
Chennai