I want to issue an electronic tax invoice

Can you explain what you mean in greater detail?

If you mean you would like to have a record of an invoice from Linode/Akamai which lists your Tax ID and name/company name, you can enter in your Tax ID number by following the steps here:
https://www.linode.com/docs/products/platform/billing/guides/tax-information/#adding-a-tax-id

By doing so, any historical and future invoices listed in the Cloud Manager's Account page will automatically be generated with the information you enter. This can be used to submit to your local government's tax agency for credits used on business expenses associated with that Tax ID number.

-Micah