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GST Calculator

Calculate GST, CGST, SGST, and IGST quickly. Perfect for Indian businesses to compute tax amounts accurately.

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Understanding GST: India's Tax System

Goods and Services Tax (GST) is India's unified indirect tax system that replaced multiple state and central taxes. Understanding GST calculation is crucial for businesses operating in India.

🇮🇳 India GST Facts & Requirements

GST Registration Thresholds

  • Regular States: Mandatory registration if annual turnover exceeds ₹20 lakhs
  • Special Category States: Threshold is ₹10 lakhs (Arunachal Pradesh, Manipur, Meghalaya, Mizoram, Nagaland, Puducherry, Sikkim, Tripura, Uttarakhand)
  • Service Providers: Same thresholds apply for service businesses

GST Rates in India

  • 0% (Nil Rate): Essential goods like fresh fruits, vegetables, milk, bread
  • 5%: Common items like packaged food, medicines, transport services
  • 12%: Processed foods, computers, mobile phones, restaurant services
  • 18%: Most common rate - IT services, restaurants, financial services, most goods
  • 28%: Luxury items, automobiles, aerated drinks, tobacco products

CGST, SGST, and IGST Explained

  • CGST (Central GST): Collected by Central Government on intra-state supplies
  • SGST (State GST): Collected by State Government on intra-state supplies
  • IGST (Integrated GST): Collected by Central Government on inter-state supplies and imports
  • Intra-state: When supplier and recipient are in the same state - CGST + SGST apply
  • Inter-state: When supplier and recipient are in different states - IGST applies

E-Invoicing Requirements

Businesses with annual turnover above ₹5 crores must generate e-invoices through the Invoice Registration Portal (IRP). E-invoices help automate GST return filing and reduce errors.

GST Return Filing

  • GSTR-1: Monthly/quarterly return for outward supplies (sales)
  • GSTR-3B: Monthly summary return with tax payment
  • GSTR-9: Annual return filed by December 31st
  • Late filing penalties: ₹50-200 per day depending on return type

Why Accurate GST Calculation Matters

  • ✓Compliance: Incorrect GST calculation can lead to penalties up to ₹25,000 and interest on delayed payments
  • ✓Input Tax Credit (ITC): Accurate calculation ensures you can claim proper ITC, reducing your tax liability
  • ✓Cash Flow: Proper GST calculation helps manage cash flow by accurately estimating tax obligations
  • ✓Audit Readiness: Accurate records reduce audit risk and make GST audits smoother