GST for retailers

GST Filing for Retailers

GST compliance designed around retail sales, purchases, ITC and monthly return filing.

Start GST filingRetailers GST checklist

Written by Tax Paramarsh editorial teamReviewed by Tax Paramarsh GST deskLast updated 3 October 2026Rules as in force on 3 October 2026

In a typical month, you deal with

  • Hundreds of small B2C bills, a few B2B invoices
  • Returns and exchanges
  • Purchases from many suppliers
  • UPI, card and cash collections
  • Sometimes, marketplace sales
The basics

How GST works for retailers

You collect GST on every sale at the rate that applies to each item, and claim back the GST you paid on purchases as input tax credit (ITC). Each month (or quarter under QRMP) you report sales in GSTR-1, check your available credit in GSTR-2B, and pay the difference through GSTR-3B. Since July 2025 the tax liability in GSTR-3B comes straight from GSTR-1 and can’t be edited — so your sales data has to be right the first time.

Records

What data should you maintain?

Sales
  • B2B invoices with buyer GSTIN
  • B2C sales summary by tax rate
  • Credit notes and debit notes
  • Sales returns
  • E-commerce sales
Purchases
  • Purchase register
  • Expense bills
  • Purchase returns
  • Credit notes received
GST records
  • GSTR-1
  • GSTR-2B
  • GSTR-3B
  • E-way bills
  • E-invoices, where applicable
Every month

Your monthly GST workflow

  1. Sales data
  2. Purchase data
  3. GSTR-2B
  4. Reconciliation
  5. ITC review
  6. GSTR-1
  7. GSTR-3B
  8. Filing
  9. GST report
Avoid these

Common GST mistakes

B2B sales billed as B2C

If the buyer’s GSTIN isn’t on the invoice, they can’t claim credit — and you get an awkward correction later.

Returns without credit notes

Goods come back but no credit note is issued, so tax is paid on a sale that no longer exists.

Old tax rates in the billing software

After the GST 2.0 rate changes of September 2025, item rates in billing software must be updated, or every bill is wrong.

Claiming ITC not in GSTR-2B

Credit claimed from purchase bills alone, before the supplier has reported them, invites notices.

Blocked credits claimed

Some credits — personal use, certain vehicles, food and beverages — are blocked by law even if they appear in 2B.

Marketplace sales not reconciled

Sales and TCS shown by marketplaces don’t match your own records, and the gap shows up later.

Free GST checklist

What should you send every month?

Choose your business type. This is the data a good GST process starts with.

Your monthly GST data checklist

    Download this checklist

    Get it as a file to share with your team or accountant.

    How Tax Paramarsh helps

    • We take your billing-software exports and purchase bills each month
    • Reconcile purchases with GSTR-2B and act in IMS
    • Prepare GSTR-1 and GSTR-3B — you approve, we file
    • Send the ARN and a short GST report
    • Flag rate, HSN and credit-note issues before they become notices

    Pricing

    Most retailers fit the Basic (₹299/month) or Standard (₹599/month) plan; high-volume stores move to Pro (₹999/month). Plus 18% GST. Basic covers up to 10 invoices a month, Standard 11–50 and Pro 51–200 — with turnover up to ₹50 lakh for Basic and Standard, and ₹1 crore for Pro. Pay yearly and get 12 months for the price of 10.

    See all GST plans →

    Common questions

    Do retailers need GST registration?

    Yes, once turnover crosses the registration threshold — ₹40 lakh for most businesses selling goods, lower in some states — or if you sell goods to other states, or online through marketplaces (small online sellers have some exemptions). Below the limit, registration is optional.

    Should a small retailer choose the composition scheme?

    It can suit retailers with turnover up to ₹1.5 crore (lower in some states) who sell mainly to consumers: tax is paid at a low fixed rate with quarterly payments. But you cannot collect GST from customers or claim input tax credit, and you cannot sell to other states. We compare both for your numbers.

    How should B2B and B2C sales be reported?

    Sales to GST-registered buyers (B2B) are reported invoice by invoice with the buyer’s GSTIN, so they can claim credit. Sales to consumers (B2C) are reported as a summary by tax rate and state, with large inter-state B2C invoices reported individually.

    How do sales returns affect GST?

    Issue a credit note for the return and report it in GSTR-1. That reduces your output tax. Without a credit note, you pay tax on a sale you no longer have.

    Can I file GST quarterly?

    If your turnover is up to ₹5 crore, the QRMP scheme lets you file GSTR-1 and GSTR-3B quarterly while paying tax monthly. B2B buyers can still get their credit monthly if you upload those invoices through IFF.

    Often needed alongside GST

    AccountingWant us to maintain your books?TDSDo you deduct TDS on rent or salaries?Income tax returnNeed your annual ITR handled?Business complianceOne team for your complete compliance

    GST for other industries

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    Let us handle your shop’s GST every month.

    Accurate data, reconciled credit, filed on time.

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