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The Ultimate Guide on How to File GSTR-1 for Amazon Sellers in 2026

M Meghraj Jagtap | 13 Mar 2026 | 12 min read | 10 views

Selling on Amazon has opened up massive avenues for businesses across India. With millions of customers just a click away, the potential for scaling your brand is unprecedented.

However, running an online e-commerce business comes with its own set of strict regulatory requirements. The most critical of these is GST compliance.

If you are an Amazon seller in 2026, understanding how to accurately file your GST returns is no longer just a legal formality—it is the backbone of your business's financial health.

E-commerce sellers face some of the most complex GST obligations in India, primarily due to platform-based transactions, automated Tax Collected at Source (TCS) deductions, and strict reporting rules under the Goods and Services Tax framework.

In this comprehensive guide, we will break down exactly how to file GSTR-1 for Amazon sellers in 2026, decode the latest portal updates like Table 14, and show you how to streamline your compliance so you can focus on what you do best: growing your sales.

Understanding GST for Amazon Sellers

Before diving into the GSTR-1 filing process, it is crucial to understand the ground rules that apply to e-commerce sellers. Unlike traditional brick-and-mortar businesses that enjoy a threshold exemption limit (₹40 lakhs for goods / ₹20 lakhs for services), e-commerce sellers do not have this luxury.

Under Section 24(ix) of the CGST Act, anyone making taxable supplies through an e-commerce operator (ECO) like Amazon, Flipkart, or Meesho must register for GST mandatorily, regardless of their annual turnover. Simply put: if you want to sell a taxable product on Amazon India, you need a Goods and Services Tax Identification Number (GSTIN) from day one.

Because you are selling directly to the end consumer, you are liable to pay the GST on those sales. Amazon simply acts as a facilitator and deducts a small percentage of your sales as TCS (Tax Collected at Source) before remitting the final payment to your bank account.

What is GSTR-1?

GSTR-1 is a monthly or quarterly return form that requires you to report the details of all your outward supplies (your sales). For an Amazon seller, this means reporting every single product you sold, the state it was shipped to, the GST rate applied, and any order cancellations or returns that occurred during that specific tax period.

  1. Monthly Filers: Due by the 11th of the following month.
  2. Quarterly Filers (QRMP Scheme): Due by the 13th of the month following the end of the quarter.

Failing to file GSTR-1 on time not only attracts late fees and penalties but also blocks your ability to file GSTR-3B, which can ultimately lead to the suspension of your GST registration and the halting of your Amazon seller account.

The 2026 Landscape: Decoding Table 14 in GSTR-1

If you are wondering GST return file kaise kare (how to file GST return) in 2026, you must be aware of the recent structural changes on the GST portal.

To simplify e-commerce transaction reporting and eliminate discrepancies, the GST Network (GSTN) introduced dedicated tables for e-commerce operators and sellers.

For Amazon sellers, the most important update is Table 14.

Previously, e-commerce sales were clubbed with regular B2B or B2C sales, making it incredibly difficult to reconcile the TCS deducted by Amazon with the sales reported by the seller. Now, the government requires precise reporting:

  1. Table 14(a) – Supplies made through E-Commerce operators (TCS): This is where Amazon sellers must report their sales. Because Amazon is liable to collect TCS under Section 52 of the CGST Act, you must report a summary of your supplies made through Amazon in this specific table, categorized by Amazon’s GSTIN.


  1. Table 14(b) – Supplies made through E-Commerce operators (Reverse Charge): This applies to services like Uber or Swiggy under Section 9(5) and generally does not apply to standard product sellers on Amazon.

Entering your data accurately in Table 14 ensures that the numbers align perfectly with the TCS returns filed by Amazon, allowing you to seamlessly claim your TCS credits and maintain a healthy working capital.

Essential Documents Needed for GSTR-1 Filing

Before logging into the GST portal, you need to gather your data. Attempting to file without organizing your reports will lead to critical errors. Here is what you need:

  1. Amazon Merchant Tax Report (MTR): This is the holy grail for Amazon sellers. The MTR can be downloaded directly from your Amazon Seller Central dashboard (Reports > Tax Document Library > Merchant Tax Reports). It contains a line-by-line breakdown of your B2B sales, B2C sales, shipping charges, and returns.
  2. B2B Sales Invoices: Details of sales made to other registered businesses on Amazon Business. You will need their GSTINs, invoice numbers, dates, taxable values, and tax amounts.
  3. B2C Sales Data: Consolidated data of sales made to end consumers, categorized by the Place of Supply (the state where the goods were delivered) and the GST rates (e.g., 5%, 12%, 18%).
  4. Credit Notes (Sales Returns): E-commerce sees a high volume of returns. You must have data on all cancelled and returned orders to issue credit notes and reduce your tax liability.
  5. HSN Code Summary: A summary of all the goods you sold, categorized by their Harmonized System of Nomenclature (HSN) codes.

Step-by-Step Guide: How to File GSTR-1 for Amazon Sellers

Here is the exact step-by-step GSTR-1 filing process for e-commerce sellers in 2026.

Step 1: Log in to the GST Portal

Visit the official GST portal (www.gst.gov.in) and log in using your valid credentials (Username and Password). Navigate to Services > Returns > Returns Dashboard.

Select the relevant Financial Year and the Month/Quarter for which you are filing, and click "Search." Under GSTR-1, click "Prepare Online."

Step 2: Enter B2B Sales Data (Tables 4A, 4B, 4C, 6B, 6C)

If you sell on Amazon Business, you will have B2B transactions. Click on Table 4A and enter the invoice-wise details of all supplies made to registered persons. You must input the buyer's GSTIN, invoice number, invoice date, total invoice value, and the tax rate.

Step 3: Enter B2C Large Invoices (Table 5A, 5B)

If you made any individual inter-state sale to an unregistered consumer where the invoice value exceeds ₹2.5 lakhs, it must be reported here.

(Note: This is rare for standard Amazon sellers unless you are selling high-ticket items like premium electronics or jewelry).

Step 4: Enter B2C Others (Table 7)

This is where the bulk of your Amazon retail sales will go. You need to consolidate your B2C sales from your Amazon MTR report.

Provide a state-wise summary of all intra-state and inter-state B2C sales (below ₹2.5 lakhs). You must input the Place of Supply (e.g., Maharashtra, Delhi) and the applicable GST rate, along with the taxable value.

Step 5: The Game Changer - Fill Table 14(a)

Navigate to Table 14. Select the tab for "Liable to collect tax u/s 52 (TCS)". Here, you must enter the total net taxable value of the supplies made through Amazon, categorized by Amazon’s GSTIN.

This step is non-negotiable in 2026. The values you enter here must match the consolidated B2B and B2C sales you entered in the previous tables.

Step 6: Adjust for Returns using Credit Notes (Table 9B)

Did a customer return a pair of shoes? If the original sale was reported in a previous month, you must declare the return as a Credit Note in Table 9B.

If you fail to report returns, you will end up paying GST out of your own pocket for items you didn't even successfully sell. E-commerce returns must be carefully netted off against your gross sales.

Step 7: HSN-wise Summary (Table 12)

Provide the HSN codes for the products you sold, along with the total quantity, total value, and total tax amounts. Accurate HSN reporting is strictly monitored by the tax authorities in 2026.

Step 8: Generate Summary and File

Once all tables are filled, click on "Generate GSTR-1 Summary." Wait a few minutes and refresh the page. Carefully review the consolidated summary to ensure the total tax liability matches your internal calculations.

Finally, click "Submit" to freeze the data, and then click "File Return" using an EVC (OTP sent to the registered mobile number) or a DSC (Digital Signature Certificate).

Common Mistakes Amazon Sellers Make (And How to Avoid Them)

Filing GST for e-commerce is vastly different from offline retail. Here are the most common pitfalls:

  1. Reporting Gross Sales Instead of Net Sales: Always account for order cancellations and returns. Paying tax on gross dispatched orders rather than net successful sales is a surefire way to bleed working capital.
  2. Place of Supply Errors: In e-commerce, the Place of Supply is the delivery state, not where your warehouse is located. Incorrectly categorizing an inter-state sale (IGST) as an intra-state sale (CGST/SGST) will lead to immediate portal mismatches.
  3. Ignoring Table 14: Failing to report sales against Amazon's GSTIN in Table 14 means the portal cannot reconcile your sales with Amazon's TCS filings. This will prevent you from claiming your hard-earned TCS refund.
  4. Mismatches between GSTR-1 and GSTR-3B: Your outward supplies reported in GSTR-1 must perfectly match the tax liability you pay in GSTR-3B. Any discrepancy will automatically trigger a scrutiny notice (Form ASMT-10) from the GST department.

The Smart Way to File: Why You Need Automation in 2026

Let’s be honest: downloading massive Excel files from Amazon Seller Central, manually filtering B2B and B2C transactions, sorting them state-wise, calculating net returns, and cross-referencing TCS deductions is a logistical nightmare.

For a seller doing hundreds or thousands of orders a month, manual data entry is not just time-consuming—it is a breeding ground for mathematical errors and compliance disasters.

This is exactly where smart, automated solutions become your best business partner. Instead of wrestling with complex spreadsheets at the end of every month, you can utilize dedicated tax compliance platforms like OkayGST.

Built specifically to handle the modern complexities of Indian taxation, OkayGST transforms hours of manual calculation into a seamless, error-free process.

Why successful Amazon sellers are making the switch to OkayGST:

  1. Effortless Integration: You can easily import your Amazon Merchant Tax Reports, and the software automatically categorizes your B2B, B2C, and return transactions.
  2. Automated Table 14 Compliance: OkayGST inherently understands the latest e-commerce reporting mandates. It accurately maps your marketplace sales to the appropriate ECO GSTINs, ensuring your Table 14 data is flawless.
  3. Mismatch Alerts: Before you even click submit, the system cross-verifies your GSTR-1 data with your GSTR-3B and Amazon's TCS returns, flagging missing invoices, duplicate entries, or GST rate mismatches instantly.
  4. Notice Prevention: By ensuring 100% accuracy in your Place of Supply and HSN summaries, OkayGST virtually eliminates the risk of receiving automated scrutiny notices from the tax department.

When you use https://okaygst.com/, you aren't just buying software; you are investing in peace of mind. It allows you to step away from the calculator and get back to sourcing products, optimizing your Amazon listings, and scaling your business.

The Consequences of Non-Compliance

The GST department has tightened its grip on e-commerce transactions. If you delay your GSTR-1 filing, you will face:

  1. A late fee of ₹50 per day (₹25 CGST + ₹25 SGST) for regular returns, and ₹20 per day for Nil returns.
  2. Interest at 18% per annum on any delayed tax payments.
  3. The blocking of your E-way bill generation facility.
  4. A negative compliance rating, which can prompt Amazon to withhold your payouts or suspend your seller account until your GSTIN is active and compliant again.

Frequently Asked Questions (FAQs)

1. Can I sell on Amazon without a GST number if my turnover is below ₹40 lakhs? No. If you are selling taxable goods online through an e-commerce platform like Amazon, GST registration is mandatory irrespective of your annual turnover. Only sellers dealing exclusively in exempt goods (like certain raw agricultural products) or those operating strictly under the new composite schemes for ECOs (subject to strict conditions) are exempt.

2. What happens if I had zero sales on Amazon this month? You are still legally required to file a "Nil Return." Failing to file a Nil GSTR-1 will still attract late fees and break your compliance streak.

3. Does Amazon pay the GST on my behalf? No. Amazon acts as an intermediary. You, the seller, are making the supply to the buyer. You are liable to calculate, report, and pay the GST to the government. Amazon only deducts a nominal TCS and forwards it to the government, which you can later claim as a credit.

4. How do I claim the TCS deducted by Amazon? Once Amazon files its GSTR-8 return, the TCS deducted will reflect in your TDS/TCS credit received tab on the GST portal. You must accept these details, after which the amount will be credited to your Electronic Cash Ledger, which can be used to offset your tax liabilities.

5. I made a mistake while filing GSTR-1. Can I revise it? Once GSTR-1 is filed, it cannot be revised or directly edited. However, you can rectify the mistake by making an amendment in the GSTR-1 of the subsequent month using Tables 9, 10, or 11.

Conclusion

Mastering the GSTR-1 filing process for Amazon sellers is paramount for long-term e-commerce success in 2026. From accurately sorting your B2B and B2C sales to mastering the nuances of Table 14 and managing your TCS credits, strict attention to detail is required.

While the GST laws are stringent, the process doesn't have to be a monthly headache. By maintaining organized digital records, understanding the marketplace reports, and leveraging the power of automation with platforms like OkayGST, you can ensure flawless compliance, avoid costly penalties, and keep your e-commerce business running like a well-oiled machine. Take control of your GST filings today, and give your Amazon business the solid financial foundation it deserves.