If GST filing in India sounds like a maze of returns, deadlines, late fees and notices, take a breath. This 2026 handbook from Team TaxQuick walks you through every angle of GST compliance. Whether you are a freelancer, a kirana shop owner, a startup or a private limited company, this is the playbook our specialist tax team uses every day.
In short, one call on 90104-78425 (easy to remember as 90104-QUICK) or a quick mail to info@taxquick.in and the entire GST mess shifts from your laptop to ours. File today, sleep tonight.
What is GST and who must register
The basics of GST
Goods and Services Tax (GST) is a single indirect tax that replaced VAT, service tax, excise and a dozen other levies back in July 2017. It runs on a self assessment model. Therefore, you compute, pay and file every month or quarter without waiting for an officer to knock.
However, the flip side is that any miss invites interest, late fees and notices the very next day. The official GST portal managed by the government is available at gst.gov.in. All filings, registrations and refunds happen there.
Who must register for GST
You must register if your aggregate turnover crosses 40 lakh rupees for goods or 20 lakh rupees for services in a financial year. For special category states, the threshold is 20 lakh and 10 lakh respectively.
In addition, you must register regardless of turnover if you sell on Amazon, Flipkart, Meesho or any e commerce platform. Moreover, inter state suppliers, TDS deductors and casual taxable persons must also register. Voluntary registration is allowed and often smart because it lets you claim Input Tax Credit and project a more credible brand to clients.
The GST returns calendar, simplified
Monthly returns for regular taxpayers
The big three returns every regular taxpayer files are GSTR 1, GSTR 3B and GSTR 9. GSTR 1 reports outward supplies and is filed monthly by the 11th. GSTR 3B is the summary return with tax payment and is filed monthly by the 20th. As a result, missing either of these blocks your buyer’s input credit or freezes your e way bills.
Annual and specialised returns
GSTR 9 is the annual return filed by 31 December of the following financial year. Moreover, GSTR 9C reconciliation is mandatory if turnover crosses 5 crore rupees. Composition dealers file CMP 08 quarterly by the 18th and GSTR 4 once a year by 30 June.
For example, e commerce operators file GSTR 8, TDS deductors file GSTR 7 and input service distributors file GSTR 6 monthly. Each return has its own format, validation rules and late fee. Mix them up at your own risk. For the full compliance calendar, refer to the Central Board of Indirect Taxes and Customs at cbic.gov.in.
Late fees and interest, the real cost of delay
GSTR 3B and GSTR 1 attract a late fee of 50 rupees per day, capped per return based on turnover. Nil returns attract 20 rupees per day. In addition, interest on tax not paid runs at 18 percent per annum from the day after the due date until actual payment.
For wrong claim of Input Tax Credit, the interest can climb to 24 percent. Moreover, a missed GSTR 1 freezes your buyer’s input tax credit. A missed GSTR 3B blocks your e way bills. Therefore, treat the compliance calendar as sacred.
The GST notice family
Not every GST notice signals disaster. Most notices in Telangana, Andhra Pradesh and across India fall into a handful of clear buckets. Once you know the type, the reply is half done.
GSTR 3A and ASMT 10
A GSTR 3A notice arrives when you fail to file returns. ASMT 10 lands when scrutiny throws up a discrepancy between your GSTR 1, GSTR 3B and GSTR 2B. In other words, the officer has spotted a number mismatch and wants an explanation.
DRC notices and audit
DRC 01 is a show cause notice with a tax demand. However, DRC 01A is a pre demand intimation that you can settle without penalty if you act fast. DRC 03 is your voluntary payment to close the notice. ADT 01 invites you to a department audit under Section 65.
Every notice carries a DIN, a section of the CGST or SGST Act, a stated period and a strict response window of 7, 15 or 30 days. The clock starts the moment the notice is issued, not the day you read it. Therefore, ignoring a GST notice is how a small query becomes a 12 lakh demand.
The fatafat 7 step GST notice playbook
- Read the notice twice. Note the DIN, section, period, demand amount and the response deadline.
- Download the related GSTR 1, GSTR 3B, GSTR 2B and GSTR 9 for the period from the GST portal.
- Reconcile sales register, purchase register and bank book against the returns filed.
- Identify the gap. Wrong HSN, missed invoice, blocked credit, mismatch with vendor return or pure clerical error.
- Compute the actual liability if any, with 18 percent interest and applicable late fee.
- Draft a point wise reply with annexures, file it on the GST portal and pay any balance via DRC 03.
- Track the notice status weekly until it is closed. Save the order copy in a cloud folder for future audits.
In short, most GST notices can be closed within 21 working days if handled correctly. However, a hasty DIY reply can lock in a demand you could have trimmed by 80 percent. Therefore, when in doubt, call Team TaxQuick on 90104-78425.
GST registration in 3 working days
For a fresh GST registration in Hyderabad, Secunderabad, Warangal, Karimnagar, Vijayawada or Visakhapatnam, you need PAN of the entity, certificate of incorporation or partnership deed, and photo and PAN of the authorised signatory.
In addition, you need address proof of the principal place of business, a rental agreement or EC, a recent electricity bill, bank account proof and a digital signature for companies and LLPs. Moreover, Team TaxQuick typically closes GST registration in 3 to 5 working days, including resolving any clarification from the proper officer.
Input Tax Credit, the heart of GST savings
When ITC is allowed
Input Tax Credit (ITC) is the single biggest reason GST becomes a pass through and not a cost. However, GST allows ITC only under strict conditions. Your vendor must upload the invoice in their GSTR 1 and it must reflect in your GSTR 2B.
In addition, you must possess the tax invoice, have actually received the goods or services, and the vendor must have paid the tax to the government. Miss any one condition and the credit is reversed with interest. Therefore, a clean monthly reconciliation between your purchase register and GSTR 2B is the only way to keep ITC bulletproof.
QRMP, the relief for small taxpayers
If your annual turnover is up to 5 crore rupees, the Quarterly Return Monthly Payment (QRMP) scheme lets you file GSTR 1 and GSTR 3B quarterly while paying a fixed monthly sum. As a result, it cuts your monthly compliance load by two thirds.
QRMP is perfect for small businesses, professional firms and startups. Moreover, switching in or out of QRMP is done online before the start of any quarter. Team TaxQuick can map your numbers and recommend whether QRMP saves you time and money.
E invoicing and e way bills
The GST system mandates e invoicing for every business whose aggregate turnover in any prior financial year from 2017 18 onwards crossed 5 crore rupees. In other words, your system must upload every B2B invoice on the IRP and assign an Invoice Reference Number before the invoice reaches your buyer.
You must generate an e way bill for every goods movement worth more than 50,000 rupees within and across states. Moreover, both systems integrate directly with GSTR 1 and GSTR 3B, so any mismatch is a notice waiting to happen. Therefore, our compliance team runs daily reconciliations to keep all three in lockstep.
Common GST mistakes that invite trouble
Several small errors create most GST notices. First, filing GSTR 3B without uploading GSTR 1 first. Second, claiming ITC that is not in GSTR 2B. Third, forgetting to reverse ITC on exempt supplies.
Moreover, using wrong HSN or SAC codes, charging IGST instead of CGST and SGST on intra state supplies, and ignoring reverse charge on freight, legal services and director sitting fees are all classic triggers. For example, treating advance receipts as taxable only on invoice date is one of the most common audit findings. As a result, each of these shows up in a scrutiny notice with the interest meter running from day one.
GST refunds, the missed cash flow opportunity
Exporters, inverted duty structure dealers, SEZ suppliers and casual taxable persons can claim GST refunds via RFD 01 on the GST portal. Refunds typically take 30 to 60 days once filed correctly with all annexures.
In addition, Team TaxQuick has helped clients across Telangana and Andhra Pradesh recover crores in blocked working capital. Therefore, if your business exports or operates under inverted duty structure, mail us at info@taxquick.in for a free 15 minute refund eligibility check.
GST with Income Tax, the compliance combo
The Income Tax Department uses GST data to build your AIS, TIS and 26AS. As a result, a mismatch between your GST turnover and ITR turnover is the fastest route to a CASS scrutiny notice. Smart firms reconcile GST and ITR every quarter, not at year end.
Moreover, our clients get this mapping and a single quarterly review call as part of every annual compliance plan. For a deep dive into Profession Tax compliance in Telangana, read our cornerstone Profession Tax Notice handbook. It is a 10 minute read that will save you a lakh in penalties.
When to seek professional help
Some GST situations are dangerous to DIY. Watch out first for any notice that quotes a section of the CGST Act. Demands above 25,000 rupees also warrant professional backup. Show cause notices under Section 73 or 74 carry serious penalty exposure. Audit intimations under Section 65 signal a full department audit.
In addition, any first or second appeal stage demands professional support. A wrong reply filed in haste can lock in a demand you could have trimmed by 80 percent. Therefore, Team TaxQuick has handled GST notices across every district in Telangana, Andhra Pradesh, Karnataka, Tamil Nadu and Maharashtra.
Team TaxQuick GST fatafat promise
- Fresh GST registration in 3 to 5 working days.
- Monthly GSTR 1 and GSTR 3B filed on autopilot, zero missed deadlines.
- Notice reply drafted within 72 hours of receipt.
- Annual GSTR 9 and GSTR 9C with full reconciliation.
- Single window for GST, Income Tax, Profession Tax, ROC and trademark work.
- Transparent monthly retainer, WhatsApp first support, in person meetings on request.
Ready to fix your GST in one call
Pick up the phone or open WhatsApp. Dial 90104-78425, that is 90104-QUICK. Alternatively, mail your last GSTR 3B and any pending notice to info@taxquick.in with your PAN and contact number.
A member of Team TaxQuick will respond within the same working hour with a fixed fee quote and a clear timeline. Fatafat filings, friendly faces, fair fees. That is TaxQuick.
Disclaimer. This handbook is general information published by TaxQuick for the benefit of taxpayers in India. It is not legal advice. GST rates, slabs, due dates, forms and portal procedures change frequently. Please confirm the current position with Team TaxQuick before acting on any section of this article.