GST in India – Simple Guide for Businesses
- GST unifies many taxes under a single 18% standard rate
- Registration is mandatory once turnover hits INR 40 lakh
- Returns are due monthly, with GSTR‑1 by the 11th of the next month
- Input‑tax credit can lower prices but adds cash‑flow complexity
- Late filing incurs a 10% penalty
What is the GST registration threshold for businesses?
GST, or Goods and Services Tax, is India’s single‑nation tax that replaces dozens of older levies. It charges a standard rate of 18 % on most goods, while essential items sit at 0 % or 5 %. The system splits the tax into Central GST, State GST and, for inter‑state sales, Integrated GST. This three‑tier split lets both the centre and the state collect revenue on the same transaction. The goal is to create a transparent, destination‑based tax that reduces cascading effects. However, businesses often complain about the paperwork required to claim input‑tax credits. According to the Ministry of Finance, over 1.2 crore entities were registered by early 2025.
How do CGST, SGST, and IGST differ?
Any business whose annual turnover exceeds INR 40 lakh must register online through the GST portal. The process begins with a PAN verification, then a temporary ID is issued. After uploading address proof and bank details, the authorities grant a permanent GSTIN within a week. Small traders below the threshold can still opt in voluntarily, which some use to claim credits on purchases. The upside is a single tax number for all states, but the downside is the need to maintain detailed invoices for every sale. The portal’s user guide, published by the GST Council, walks users through each step with screenshots.
Frequently asked questions
Businesses with an annual turnover of ₹40 lakhs (₹20 lakhs for special category states) must register for GST. Below this limit, registration is optional.
CGST and SGST are state‑level taxes on intra‑state sales; CGST goes to the central government, SGST to the state. IGST applies to inter‑state sales and is collected by the centre, later shared with the destination state.
GST is calculated by applying the applicable tax rate (5%, 12%, 18% or 28%) to the taxable value of goods or services. The seller adds this amount to the invoice, and the buyer can claim it as input tax credit.
Registered entities must file GSTR‑1 (outward supplies) monthly, GSTR‑3B (summary) monthly, and an annual return GSTR‑9. Specific due dates are the 11th, 20th and 31st of the following month respectively.
No. Input tax credit is only available to GST‑registered taxpayers. Unregistered businesses cannot claim credit for GST paid on purchases.
