In GST (Goods and Services Tax) law in India, the calculation of tax on mixed supplies and composite supplies is handled differently based on the nature of the supplies involved. Here's how GST is calculated on both: 1. Mixed Supply: A mixed supply refers to a combination of two or more goods or services that are sold together for a single price, but each of those goods or services can be supplied separately. Key Characteristics: The supply consists of different goods or services. The items in the mixed supply can be separately supplied, and each may be subject to a different GST rate. The supply is treated as a single supply, and the highest GST rate applicable to any single item in the supply will apply to the entire supply. GST Calculation: The GST rate applicable is the highest rate of tax among the items in the mixed supply. For example, if a bundle of goods and services is sold, and one item attracts 18% GST while another attracts 12%, the entire bundle will be taxed at 18% GST. Example: If a supplier offers a package of clothing (attracting 5% GST) and cosmetics (attracting 18% GST) for a single price, the entire bundle will be taxed at 18% GST (the highest rate). 2. Composite Supply: A composite supply involves the supply of two or more goods or services, where one of the items is the principal supply and the others are ancillary or related to it. This can include, for example, the supply of a hotel room along with food services, where the hotel room is the main supply. Key Characteristics: The supply consists of two or more goods or services. The items are naturally bundled together, and the supply is treated as a single supply for GST purposes. The GST rate is determined based on the principal supply. GST Calculation: The GST rate is determined by the principal supply in the composite supply. The tax is applied on the full value of the composite supply, not on individual items. For example, if a hotel provides a room along with meals, and the room rent is the principal supply, then the entire service will be taxed at the rate applicable to hotel accommodation (say, 12% GST), even if the meals have a different GST rate. Example: If a hotel offers a room with breakfast, where the room is the principal supply (attracting 12% GST), the entire package will be taxed at 12% GST, even if the food portion is taxed at a different rate (say, 5%). Summary of GST Calculation: Mixed Supply: The entire supply is taxed at the highest rate of the items in the mix. Composite Supply: The tax is applied based on the principal supply within the composite supply, and the entire supply is taxed at the rate of that principal supply. Understanding these distinctions ensures that the correct GST treatment is applied to bundled or combined goods and services in any transaction.