1. Contact suppliers: First, you can contact suppliers and ask them to provide corresponding cost tickets or issue other valid invoices, so that enterprises can handle accounts.

2. Invoicing by oneself: If the supplier can't provide the cost invoice, it can issue other valid invoices by itself, such as ordinary invoices and VAT invoices, but it needs to ensure that the invoice information is true and effective and meets the relevant tax regulations and requirements.

3. Application for reissue of the cost ticket: If the supplier cannot provide the cost ticket and the self-issued invoice fails to meet the relevant requirements, it can apply to the tax bureau for reissue of the cost ticket and provide relevant supporting materials, such as transaction vouchers and copies of invoices.

The information required to handle the cost ticket is as follows:

1, original vouchers: including purchase invoices, transportation documents, insurance documents, storage expense vouchers, etc.

2. List of goods: It is necessary to provide a list of goods, indicating the name, quantity, unit price and amount of the goods.

3. Enterprise cost accounting schedule: it is required to provide enterprise cost accounting schedule, which lists all costs and expenses in detail, including procurement cost, transportation cost and storage cost.

4. Enterprise tax registration certificate, business license and other documents: it is necessary to provide enterprise tax registration certificate, business license and other documents to prove the identity and business scope of the enterprise.

5. Application Form: You need to fill in the cost ticket application form and affix the official seal of the enterprise.

To sum up, enterprises need to ensure that the invoice information is true and effective and meets the relevant tax regulations and requirements when dealing with accounts.

Legal basis:

Article 11 of the Enterprise Income Tax Law of the People's Republic of China

When calculating taxable income, the depreciation of fixed assets calculated by the enterprise in accordance with the regulations is allowed to be deducted.

No depreciation deduction shall be calculated for the following fixed assets:

(1) Fixed assets other than houses and buildings that have not been put into use;

(2) Fixed assets leased by way of operating lease;

(3) Fixed assets leased by means of financial leasing;

(4) Fixed assets that have been fully depreciated and still continue to be used;

(5) Fixed assets unrelated to business activities;

(six) separate valuation as fixed assets accounted for land;

(7) Other fixed assets for which depreciation deduction is not allowed.