Chennai's dedicated GST practice · GSTR-1 due 11th · GSTR-3B due 20th/22nd
Thirumangalam · PIN 600040

GSTR-1 & GSTR-3B Monthly Filing on NVN Nagar 1st Street, Thirumangalam

GSTR-1 & GSTR-3B Monthly Filing in Thirumangalam 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 NVN Nagar 1st Street — 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 NVN Nagar 1st Street, Thirumangalam
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
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Local Expertise

Trade Profile and GST Jurisdiction for NVN Nagar 1st Street, Thirumangalam

Thirumangalam junction, where Jawaharlal Nehru Salai meets Anna Nagar 2nd Avenue beside the metro station and VR Chennai mall, has become a showroom strip for jewellery, textiles, furniture and electronics chains spilling into Anna Nagar West Extension. High-volume B2C billing with occasional B2B orders makes correct GSTR-1 bifurcation and e-invoice applicability checks the daily compliance concern for retailers here. GST compliance in a market like Thirumangalam rewards consistency — returns that match, credits that reconcile, and records that stand up to scrutiny. Our team provides GSTR-1 & GSTR-3B Monthly Filing to businesses throughout Thirumangalam and nearby Anna Nagar and Mogappair on fixed, transparent fees. From the first document checklist to the final acknowledgement on WhatsApp, the process is structured so nothing depends on memory, luck or a due-date-evening scramble.

GST jurisdiction for Thirumangalam (PIN 600040): businesses here generally fall under the CGST Chennai North Commissionerate. We regularly represent clients from Thirumangalam 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 Restaurants and Cloud Kitchens in Thirumangalam
Restaurant service is taxed at 5 percent without input tax credit, so GST paid on rent, kitchen equipment and packaging is a cost your menu pricing must absorb. Orders routed through Swiggy or Zomato fall under Section 9(5), where the platform itself pays the tax, yet you must still disclose those supplies separately in GSTR-1, keeping direct billing and aggregator billing distinct. A cloud kitchen running several brands from one Thirumangalam address needs one registration with disciplined brand-wise invoicing, not separate GSTINs. A specialist splits the two order streams correctly every month and prevents double taxation of aggregator sales. Call +91 - 9600 606 444 to review your setup.
Yes, small businesses in Thirumangalam 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 NVN Nagar 1st Street, Thirumangalam Businesses Choose ChennaiGST

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

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 Thirumangalam business already maintains it. You are never forced to buy new software or retrain staff just to become our client.

Complete Documentation, Properly Archived

Every acknowledgement, challan, computation sheet and filed return is saved and shared with you in an organised folder. When a bank, buyer or GST officer asks for a document from two years ago, it reaches you the same day without any scrambling.

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 Thirumangalam always know exactly what the engagement costs them.

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 Thirumangalam never leave marketplace deductions unclaimed.

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.

E-Invoice and E-Way Bill Fluency

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 Thirumangalam are never held up by a compliance gap at the gate.

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 Thirumangalam

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.

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.

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.

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.

A Clean GSTIN That Stays Active

Continuous filing protects you from the suspension and cancellation proceedings that hit chronic non-filers, so your registration, e-way bill access and ability to issue tax invoices are never suddenly cut off.

Advances Treated Correctly

Advances received for services attract GST on receipt while advances for goods generally do not; applying this distinction correctly means you neither prepay tax unnecessarily nor omit a liability that surfaces later with interest.

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
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.
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.
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.
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.
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.
Compliance Watch

GST Developments Worth Knowing — relevant to Thirumangalam businesses

A working knowledge of recent instruments and judgments is what separates a defensible filing from a risky one.

Case Law

Gujarat High Court reads down mandatory one-third land deduction for GST on construction

Munjaal Manishbhai Bhatt v. Union of India — Gujarat High Court, 2022 · 2022-05-06

In a bungalow purchase where land constituted the dominant value, the Gujarat High Court held that the deeming fiction treating land value as one-third of the total consideration for GST on construction is arbitrary if applied mandatorily. Where the actual value of land is ascertainable from the agreement, tax must be computed after deducting the real land value; the one-third deduction in the rate notification was read down as optional, available at the taxpayer's choice.

How we apply it: Builders and buyers with separately valued land agreements can compute GST on actual construction value — worth revisiting for plotted developments and villa projects around Chennai.

Portal Advisory

CBIC answers on what counts as pre-packaged and labelled

CBIC Frequently Asked Questions on GST on pre-packaged and labelled goods, dated 17 July 2022 · 2022-07-17

A day before the change took effect, the Tax Research Unit issued FAQs explaining that the expression takes its meaning from the Legal Metrology Act, 2009 and covers commodities intended for retail sale in packs of up to twenty-five kilograms or twenty-five litres that must bear statutory declarations. A single package above that limit is not covered, nor are packs supplied to an industrial or institutional consumer. Loose sale from a large pack by a retailer does not attract the levy.

How we apply it: A fifty-kilogram rice bag sold as one package stays outside the levy, but the moment it is repacked into labelled retail bags of twenty-five kilograms or less, five per cent applies.

AAR Ruling

Project management consultancy for a public water project held exempt

Tamil Nadu Water Investment Company Ltd - AAR Tamil Nadu, advance ruling reported at 2019 (2) TMI 187 · 2019

The Chennai company provided management consultancy and detailed project report services to the Chennai Metro Water Supply and Sewerage Board for water related projects. It asked whether the service attracted GST. The Authority held that the supply was a pure service with no supply of goods involved, rendered in relation to a function entrusted to a municipality, and was therefore exempt from GST under the entry covering pure services supplied to government and local authorities.

How we apply it: Chennai consultants on government water and civic projects should test the pure services exemption before adding GST to their invoices.

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 Thirumangalam 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.
Is there a GST consultant near Thirumangalam for gst return filing?
Yes. We serve Thirumangalam 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 Thirumangalam and you are welcome to visit our office. Reach us on +91 - 9600 606 444 between 9 AM and 8 PM, Monday to Saturday.
My landlord in Thirumangalam has no GSTIN but my business is registered. Who pays GST on the shop rent?
You do. With effect from 10 October 2024, renting of immovable property other than a residential dwelling by an unregistered person to a registered person was brought under reverse charge through Notification 09/2024-Central Tax (Rate). So a registered trader renting a shop from an unregistered landlord must pay 18 percent under RCM through GSTR-3B and can claim it back as input tax credit if eligible. Composition taxpayers have since been kept outside this entry, given they cannot claim credit. Many small businesses in Thirumangalam are still unaware of this 2024 change, and scrutiny notices on rent entries have already begun appearing. Call +91 - 9600 606 444 to regularise past months.
Can my company claim ITC on GST paid to a contractor building our new office?
Generally no. Section 17(5) blocks input tax credit on works contract services and on goods or services used for construction of immovable property on your own account, even when the building is used for business. The exception is plant and machinery, so credit on GST paid for installing machinery, equipment or apparatus fixed to earth remains available. The block does not apply within the construction chain itself: a sub-contractor's works contract service supplied to the main contractor is creditable for the main contractor, since it is used for an onward works contract supply. Classifying civil costs correctly during a project saves disputes at audit.
The portal auto-filled an interest amount in my GSTR-3B. Can I edit or dispute it?
The portal computes interest on delayed filings under Rule 88B and auto-populates it in Table 5.1 of the next period's GSTR-3B, with a break-up shown period-wise. The system value is based on your cash ledger debits and the days of delay, and while the field permits upward revision, reducing the system-computed figure will flag the return. If you believe the computation is wrong, for instance because a liability related to an earlier period was declared with correct interest already paid through DRC-03, pay what is correct and keep the working; the department can be satisfied later with the reconciliation. We verify these auto-computations for clients before every filing.
How much does GST return filing cost near me in Thirumangalam?
Our monthly GST return filing package for businesses in Thirumangalam starts at Rs.749, which covers GSTR-1 and GSTR-3B preparation, GSTR-2B reconciliation for input tax credit, tax computation and filing reminders. There are no hidden charges; government late fees, if any, are separate and payable on the portal. Pricing depends on invoice volume, so a trader with high invoice counts may be quoted differently from a small service provider. Call +91 - 9600 606 444 for an exact quote for your business, and ChennaiGST will confirm the fee in writing before you commit.
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 Thirumangalam; call +91 - 9600 606 444 to schedule one.
What is the difference between CPIN and CIN, and how long is a GST challan valid?
When you generate a challan in Form PMT-06 on the portal, the system issues a fourteen-digit Common Portal Identification Number, the CPIN, which identifies the unpaid challan and remains valid for fifteen days. Once the bank receives your payment, a seventeen-digit Challan Identification Number, the CIN, is generated, comprising the CPIN plus the bank code, and the amount credits your electronic cash ledger. If a challan expires unpaid, simply generate a fresh one; no consequence follows. Payment modes include net banking, UPI, cards, NEFT or RTGS, and over-the-counter deposit up to Rs.10,000 per challan per tax period.
My staff stay in hotels in other states on tour. Why can I not claim that GST?
Because of the place of supply rule. Hotel accommodation is taxed where the hotel is located, so a Mumbai hotel charges CGST plus Maharashtra SGST even when the guest's employer is registered in Tamil Nadu. Your Tamil Nadu GSTIN can utilise only IGST, CGST and Tamil Nadu SGST, so another state's CGST and SGST is unusable credit; it will appear in your GSTR-2B but must be excluded from the claim. Options are limited: absorb it as cost, or obtain registration in states with heavy recurring stays, which rarely pays. Businesses in Thirumangalam with travelling teams should review bookings, since event services follow different rules that may allow IGST billing.
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.
Can I revise GSTR-9 after filing if I find an error?
No, GSTR-9 cannot be revised once filed. This makes pre-filing reconciliation critical, because the annual return is the department's primary reference during scrutiny and audit. If you discover unpaid liability after filing, it can be paid voluntarily through Form DRC-03 with interest, which mitigates penalty exposure. If credit was short-claimed, the annual return itself cannot fix it, since input tax credit claims are governed by the time limits in Section 16(4). Our process in Thirumangalam involves a line-by-line reconciliation and a client sign-off before we submit anything.
What are the common types of GST notices a business can receive?
The frequent ones are: REG-03 seeking clarification on a registration application; GSTR-3A for non-filing of returns; ASMT-10 pointing out discrepancies found on scrutiny of returns; DRC-01A intimating an ascertained tax liability before formal proceedings; DRC-01, the show cause notice under Section 73 or 74; ADT-01 intimating a departmental audit; REG-17 proposing cancellation of registration; RFD-08 proposing rejection of a refund claim; and summons under Section 70. Each has its own reply form and deadline, ranging from seven working days to thirty days, so identifying the notice type correctly is the first step in responding. When in doubt, call +91 - 9600 606 444.
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 Thirumangalam health check.
My footwear shop sells chappals at Rs.300 and shoes at Rs.4,000 on the same bill. How do I invoice this?
One invoice can comfortably carry both rates. Each pair is tested against the Rs.2,500 sale-value threshold independently, so the chappals are billed at 5% and the Rs.4,000 shoes at 18%, as separate line items under their footwear HSN codes in Chapter 64. Your GSTR-1 HSN summary will then show turnover split across the two rates. Ensure the billing software picks the rate from the item price automatically rather than from a fixed product master, because the same article sold at different price points can legitimately fall in different slabs. A quick POS configuration check prevents months of wrong-rate billing; call +91 - 9600 606 444 to arrange one.
What are the most common mistakes Chennai businesses make with GST refunds and ITC?
The recurring ones we see across Thirumangalam 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.
I deposited money under the wrong head in my GST cash ledger. Why can the amount not be used?
The cash ledger is divided into major heads, IGST, CGST, SGST and cess, and minor heads, tax, interest, penalty, fee and others. An amount deposited under one combination, say CGST-penalty, cannot be directly used to pay under another, say IGST-tax, which is why your balance appears unusable despite money lying in the ledger. The remedy is Form PMT-09, which transfers the amount to the correct head instantly without any officer approval. Many Thirumangalam taxpayers wrongly deposit a fresh challan in this situation; a two-minute PMT-09 filing saves that duplication. Call +91 - 9600 606 444 if your ledger looks stuck.
Why is my e-way bill generation blocked on the portal?
Under Rule 138E, the e-way bill facility is blocked when a taxpayer has not filed GSTR-3B (or CMP-08 for composition dealers) for two or more consecutive tax periods. Since an e-way bill is mandatory for moving goods worth more than Rs.50,000, blocking effectively halts dispatches. The remedy is straightforward: file the pending returns with late fee and interest, after which the facility unblocks automatically, usually the next day. Transporters and suppliers can also be affected when a counterparty GSTIN is blocked. We clear return backlogs for businesses in Thirumangalam on priority; call +91 - 9600 606 444.
My customer says he cannot claim ITC because of my late filing. Is that correct?
Yes, he is right. A buyer can claim input tax credit only for invoices appearing in his GSTR-2B, which is generated from suppliers' GSTR-1 and IFF filings. If you file GSTR-1 after the 11th, your invoices miss that month's GSTR-2B and your customer's credit gets pushed to the next month, straining his working capital. Repeated delays lead buyers to withhold the GST portion of payments or move to more compliant vendors. Timely GSTR-1 filing is therefore a commercial necessity, not just a legal one. ChennaiGST ensures clients in Thirumangalam never face this complaint.
How long does GSTR-1 & GSTR-3B monthly filing take in Thirumangalam?
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.
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.
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.
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