If you are engaged in the catering and accommodation industry and need to issue an invoice, you can follow the following steps:

1. Look up: write down your company name, address, contact information and other related information on the upper left side of the invoice.

2. invoice number: at the top right of the invoice, indicate the unique identification number of the invoice. Each invoice should have an independent number for easy management and tracking.

3. invoice date: in the upper right of the invoice, indicate the date of invoice issuance.

4. customer information: at the top left of the invoice, specify the buyer's name, address and contact information.

5. project details: in the part of the invoice body, list all the goods or services sold. Including the name, quantity, unit price and amount of goods or services. If catering service is provided, information such as the name, quantity and price of the dishes can be listed.

6. tax rate and tax amount: according to the local tax policy, calculate and list the applicable tax rate and corresponding tax amount.

7. total amount: under the item details, the total amount of all items is listed, that is, the total amount of the invoice.

8. Remarks: If necessary, you can add remarks in the bottom or right blank, such as payment method and special requirements.

9. signature: leave a space at the bottom of the invoice, sign the issuer or agent of the invoice, and indicate the date of invoicing.

please pay attention to ensure that the contents of the invoice are accurate and conform to relevant laws and regulations. If you are uncertain about the specific billing specifications and tax requirements, it is recommended to consult the local tax department or professional accountant for guidance.