Yes! A virtual mailbox address can generally be used to register a business. However, there may be specific requirements in your location or the entity you are registering with. Many businesses use Traveling Mailbox services for their mailing addresses, especially if they don't have a physical storefront.

Some states or counties may have specific rules about where a business can be registered, particularly for certain types of businesses or professional licenses. For example, some places might require an actual residential location for registration or they might want an actual office location for things like tax purposes or inspections.

It's always a good idea to double check with the relevant business registration authority, accountant, or legal advisor in your area to make sure using a virtual mailbox that will meet all the necessary criteria.