(1) For the purpose of assessment and collection of tax in accordance with this Act, the determination of supply of goods or services within or outside Nepal shall be as prescribed.

(2) For the purpose of assessment and collection of tax in accordance with the Act, the supply of any goods or services shall be deemed to have been supplied at the earlier of the following times:-

(a) When the supplier issues the invoice,

(b) in the case of supply of goods, when the recipient picks up or receives the goods from the supplier's place of business,

(c) in the case of supply of services, when the service is rendered,

(d) when the supplier At the time of receipt of goods or services.

(3) Notwithstanding anything written in sub-section (2), the following time shall be considered as supply time in the following cases:-

(a) continuous supply In the case of telecommunication services or other similar public services, the time when the invoice is issued, (b) according to the contract, the price of any item or service is paid in installments in more than one day, if the price is paid or is to be paid in the contract. (c) In the case of goods or services used in such a way that the tax deduction facility is not available under this Act, the time when such goods or services were used.

(4) Regarding the supply time of a transaction, if more than one of the conditions mentioned in sub-section (2) can be applied simultaneously, the determination of the supply time in such transaction shall be as determined by the Director General on an objective basis.