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 Mittanamalli, Avadi

GSTR-1 & GSTR-3B Monthly Filing in Avadi 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 Mittanamalli — 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 Mittanamalli, 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
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Local Expertise

Trade Profile and GST Jurisdiction for Mittanamalli, Avadi

If you operate in Avadi, GST deadlines arrive with the same force as anywhere in Chennai — GSTR-1 by the 11th, GSTR-3B by the 20th. 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. We provide GSTR-1 & GSTR-3B Monthly Filing to businesses across Avadi and the adjoining Ambattur and Poonamallee localities, maintaining a compliance calendar for every client so due dates are met without last-minute panic, late fees or interest at 18 percent per annum.

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 Restaurants and Cloud Kitchens in Avadi
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 Avadi 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.
After GSTR-1 & GSTR-3B Monthly Filing is filed, support continues — acknowledgements are archived, upcoming due dates are tracked, and any departmental query on the work is answered, all within fees starting at Rs.749 in Avadi.
Why Us

Why Mittanamalli, Avadi Businesses Choose ChennaiGST

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

Familiar with Chennai Jurisdictions and Officers' Expectations

We work with Chennai GST ranges and circles every week, including the jurisdiction covering Avadi. We know how local proper officers examine registrations, what supporting documents they routinely call for, and how to present a file so it moves without repeated queries.

Extra Hands During Filing Windows

In the days before the 11th and the 20th, our team runs extended hours and a strict internal queue, so a client who sends data late in the window is still filed on time. Peak-season crush at our end never becomes a late fee at yours.

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.

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.

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.

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.

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.

Bank and Tender Readiness

Loan applications and government tenders routinely demand GST returns and registration documents. With everything filed and archived properly, you can produce a complete compliance file within hours instead of days.

Tax Paid Under the Right Head

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.

Confidence During Officer Interactions

When a query or verification comes, you respond through a professional who deals with the department regularly, in the department's own language and format, instead of facing an officer's letter alone.

No Interest Outflows at 18 Percent

Interest on delayed GST payment runs at 18 percent per annum, which is costlier than most working capital finance. Timely computation and payment through our calendar keeps that meter permanently at zero.

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.

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
Input tax creditPurchase 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.
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.
Annual return preparationMonthly reconciliations roll naturally into GSTR-9, filed comfortably before 31 December with figures already agreed through the year.Twelve months of unmatched data reconstructed in December, with differences discovered too late to be corrected cleanly.
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.
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.
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.
Case Law & Notifications

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

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

Notification

Due date relief for Chennai districts after the December 2023 floods

Notification No. 55/2023-Central Tax · 2023-12-20

After Cyclone Michaung caused severe flooding in and around Chennai, CBIC extended the due date for furnishing Form GSTR-3B for the tax period November 2023 to 27 December 2023 for registered persons whose principal place of business falls in the districts of Chennai, Tiruvallur, Chengalpattu and Kancheepuram in Tamil Nadu. The relief applied automatically by district and no separate application was required from affected taxpayers.

What to do about it: In a declared local disaster, CBIC does grant district-specific extensions for Chennai, so check for a notification before paying late fee on a delayed return.

GST Council

Late fee capped at Rs 500 or waived entirely for GSTR-3B from July 2017 to January 2020

40th GST Council Meeting (video conferencing) — 12 June 2020 · 2020-06-12

As COVID relief, the Council reduced late fee for all pending GSTR-3B returns for the tax periods from July 2017 to January 2020. Where there was no tax liability the late fee was reduced to nil, and where there was a tax liability it was capped at Rs 500 per return. The reduced or waived late fee applied only if the returns were furnished between 1 July 2020 and 30 September 2020. Certain clauses of the Finance Act, 2020 were brought into force.

What it means for you: This was the single largest late fee amnesty of the early GST years, and businesses that used it cleared years of backlog for a few hundred rupees per return.

Portal Advisory

GST can now be paid by UPI, credit card and debit card

GSTN Advisories, 2024 — enabling of credit card, debit card and UPI payment options on the GST portal · 2024

In addition to net banking, NEFT, RTGS and over-the-counter payment, GSTN enabled payment of GST through Unified Payments Interface and through credit and debit cards, routed via a payment gateway on the portal. The facility was rolled out State by State and now covers most States and Union Territories. Gateway or bank charges are borne by the taxpayer, and the amount reflects in the electronic cash ledger once the challan is confirmed.

What to do about it: Use UPI or card payment when a bank transfer will not clear in time, but confirm the credit in the cash ledger before filing the return.

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.

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 documents are required for GSTR-1 & GSTR-3B monthly filing in Avadi?
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.
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 Avadi never overpay or underpay.
How does an ISD actually distribute credit among branches?
Distribution follows Section 20 read with Rule 39. Credit attributable to a single branch goes only to that branch; credit for common services is distributed among operational branches in the ratio of their turnover in the preceding financial year. The ISD issues an ISD invoice to each recipient GSTIN and reports the distribution in GSTR-6 by the 13th of the following month, after which the credit appears in each branch's GSTR-2B. IGST credit is distributed as IGST, while CGST and SGST credit is distributed as IGST to branches in other states. Excess distribution is recoverable from the recipient with interest, so the turnover ratios must be computed carefully each year.
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 Avadi commonly pay agencies' forward-charge invoices while also missing their own RCM cases, so an annual review of security and manpower bills is worthwhile.
My workshop bills customers for spare parts and labour together. How should GST be charged?
The accepted practice, supported by CBIC's clarification on servicing, is that where the invoice separately shows the value of parts and the value of labour, each takes its own treatment: parts as a supply of goods and repair labour as a service at 18%. Since auto components also moved to 18% from September 2025, both lines of a typical job card now carry the same rate, which removes the old temptation to shift value between parts and labour. Still keep the split, because HSN and SAC reporting in GSTR-1 differ for goods and services. Workshops can call +91 - 9600 606 444 for invoice-format templates.
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.
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 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.
I received a debit note from a supplier for an old invoice. Which year's ITC deadline applies?
The deadline is counted from the date of the debit note, not the original invoice. After the Finance Act 2020 delinked debit notes from their underlying invoices, ITC on a debit note can be claimed up to 30 November following the end of the financial year in which the debit note itself was issued. So a debit note dated June 2025 against an invoice of January 2024 remains claimable until 30 November 2026. This delinking rescues many price-escalation and rate-difference credits that would otherwise appear time-barred, and it is worth checking before writing off any debit note credit as lost.
I paid my supplier only part of the invoice within 180 days. How much ITC do I reverse?
The reversal is proportionate. If you paid sixty percent of the invoice value including tax within 180 days, you reverse only the ITC attributable to the unpaid forty percent, reporting it in Table 4(B)(2) of the GSTR-3B for the tax period immediately following the expiry of the 180 days. Amounts settled through book adjustments, such as netting off mutual dues or debit notes for quality deductions reducing the payable, have been accepted as payment in advance rulings, so a properly documented ledger adjustment protects the credit. Retention money held under contract terms is the most common trigger we see in Avadi construction and job-work businesses.
What does a GST consultant in Avadi typically charge for refund and compliance work?
Fees vary with complexity. Simple filings such as an LUT or an excess cash ledger refund are usually fixed-fee assignments, while export and inverted duty refunds involve invoice statements, formula workings and departmental follow-up, so they may be priced as a fixed fee or a small percentage of the refund secured. Monthly reconciliation and return packages are subscription-based. ChennaiGST publishes transparent pricing starting at Rs.749 with no percentage cut on straightforward claims, and you pay only after the scope is agreed in writing. Call +91 - 9600 606 444 for a quote specific to your turnover and refund type.
What documents must I prepare for reverse charge purchases from unregistered suppliers?
Two documents are required. First, a self-invoice: Section 31(3)(f) obliges you to issue an invoice on yourself for goods or services received from an unregistered supplier on which you pay tax under reverse charge, and under Rule 47A this self-invoice must be issued within thirty days of receiving the supply. Second, a payment voucher under Rule 52 at the time of making payment to the supplier. The self-invoice is the document on which you claim the input tax credit of the reverse charge tax paid. Freight from unregistered transporters and advocate fees are typical cases where businesses miss this paperwork.
Our company paid fees to a lawyer. Who pays the GST on this?
You do, as the recipient. Legal services supplied by an individual advocate, a firm of advocates or a senior advocate to a business entity are notified under Section 9(3), so the advocate does not charge GST and your business pays 18 percent under reverse charge in cash through GSTR-3B, claiming it back as ITC if otherwise eligible. Relief exists for small recipients: legal services to a business entity whose turnover is within the registration threshold are exempt. Since the advocate is usually unregistered, remember to raise a self-invoice and payment voucher for the transaction. Litigation-heavy businesses in Avadi should reconcile their legal expense ledger against RCM paid every quarter.
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.
How is GST charged on hotel room tariffs after the rate changes?
Hotel accommodation with a value of supply up to Rs.7,500 per unit per day attracts 5 percent GST without input tax credit, a reduction from the earlier 12 percent. Rooms priced above Rs.7,500 per day attract 18 percent with full input tax credit. The rate is determined by the actual transaction value charged for the room, so seasonal discounts can change the applicable rate on the same room across bookings. Lodges and hotels around Avadi should configure billing software to test the per-day value on each invoice rather than fixing one rate for the property.
Is the late fee charged on delayed returns the same thing as a penalty?
No, they are legally distinct. Late fee under Section 47 is an automatic, fixed daily charge for filing a return after its due date, computed by the portal and payable in cash before the return is accepted; no officer discretion or notice is involved. Penalty, under provisions such as Sections 122 to 125, is imposed through adjudication for specified offences, requires a show cause notice and hearing, and can be contested or reduced. Interest under Section 50 is a third, separate levy compensating for delayed payment. A delayed return with tax due can therefore attract all three simultaneously, each on its own footing.
Are hospital and clinic charges exempt from GST?
Healthcare services provided by a clinical establishment, an authorised medical practitioner or paramedics are exempt from GST. This covers diagnosis, treatment and care for illness, injury, deformity or pregnancy in any recognised system of medicine in India, and includes transportation of patients by ambulance, which is separately exempt for any provider. Consultation fees, surgery charges, nursing and diagnostic services within this definition carry no GST, which is why hospitals do not charge tax on treatment bills. The exemption attaches to the nature of the service, not the size of the hospital, so both a large corporate hospital and a single-doctor clinic are covered.
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.
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.
How long does GSTR-1 & GSTR-3B monthly filing take in Avadi?
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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