Legal analysis: The amortization period of intangible assets: not less than ten years; the amortization period of financial software: not less than two years. The amortization expenses of intangible assets calculated according to the straight-line method are allowed to be deducted. The amortization period of intangible assets shall not be less than 10 years. As an investment or transferred intangible asset, if the useful life is stipulated in relevant laws or contracts, it may be amortized in installments according to the prescribed or agreed useful life. Software purchased by enterprises and institutions that meets the conditions for recognition of fixed assets or intangible assets can be accounted for as fixed assets or intangible assets. Upon approval by the competent tax authorities, the depreciation or amortization period can be appropriately shortened to a minimum of 2 years. Therefore, after the enterprise obtains approval from the competent tax authority, the amortization period of the financial software can be 2 years.

Legal basis: "Regulations on the Implementation of the Enterprise Income Tax Law of the People's Republic of China"

Article 63: The depreciation of productive biological assets calculated according to the straight-line method is allowed to be deducted.

Enterprises shall calculate depreciation from the month following the month in which productive biological assets are put into use; depreciation shall be stopped from the month following the month in which productive biological assets cease to be used.

Enterprises shall reasonably determine the estimated net residual value of productive biological assets based on the nature and use of productive biological assets. Once the estimated net residual value of productive biological assets is determined, it cannot be changed.

Article 65: Intangible assets as mentioned in Article 12 of the Enterprise Income Tax Law refer to non-monetary assets that have no physical form and are held by enterprises for the purpose of producing products, providing services, leasing or operating management. Long-term assets include patent rights, trademark rights, copyrights, land use rights, non-patented technologies, goodwill, etc.