Value of supply inclusive of tax: formula isolates tax component from gross price under GST valuation rules. Rule 35 prescribes that when the value of a supply is inclusive of integrated tax, central tax, State tax or Union territory tax, the tax amount is determined by applying the applicable tax rate to the value inclusive of taxes and dividing by the sum of 100 plus the aggregate of applicable tax rates. The Rule defines 'open market value' as the full value in money excluding taxes where supplier and recipient are unrelated and price is sole consideration, and explains 'supply of like kind and quality' for valuation comparisons.