IGST full form: Integrated Goods and Services Tax

It is type of GST that is levied on the inter-state sale/purchase of goods and services between two or more states and/or Union Territories.

IGST is collected by the Central Government. Revenue collected is shared between State and Central Government.

IGST example: Sale of goods worth ₹10,000 at GST of 18% from Maharashtra to Karnataka (place of supply).

IGST calculation: =IGST % x (Value of Goods) = 18% x 10,000 = ₹1,800

₹1,800 will be collected by the Central Government and  split with Karnataka state. (Usually equally)