GST Calculator

What are the GST rates in India?

India has four main GST slabs: 5% (essential goods — food grains, medicines, transport), 12% (processed foods, computers, mobile phones), 18% (most services, electronics, toiletries), and 28% (luxury goods, automobiles, tobacco). Some goods like fresh vegetables, milk, and eggs are exempt (0% GST).

What is the difference between CGST, SGST, and IGST?

For intra-state transactions (within same state): GST is split equally between CGST (Central GST) and SGST (State GST). For inter-state transactions (between states): only IGST (Integrated GST) applies, equal to the total GST rate. You pay either CGST+SGST OR IGST — never both.

How do I add GST to an amount?

To add GST to a base price: Total = Base Price × (1 + GST Rate/100). For an item costing ₹1,000 with 18% GST: Total = ₹1,000 × 1.18 = ₹1,180. GST amount = ₹180 (CGST ₹90 + SGST ₹90 for intra-state).

How do I remove GST from an inclusive price?

To extract the base price from a GST-inclusive amount: Base = Inclusive Amount × 100 / (100 + GST Rate). For ₹1,180 inclusive of 18% GST: Base = ₹1,180 × 100/118 = ₹1,000. GST amount = ₹1,180 − ₹1,000 = ₹180.

Who needs to register for GST?

Businesses with annual turnover above ₹40 lakh (goods) or ₹20 lakh (services) must register for GST. For special category states (Northeast, Himachal Pradesh, etc.), the threshold is ₹20 lakh (goods) and ₹10 lakh (services). E-commerce sellers and businesses making interstate supply must register regardless of turnover.