With the changes made in by the Department of Labor and that the IRS go by, I would strongly encourage you to have a separate phone number for your business. Depending on the state, the laws can vary, but here's one of the "tests" used to determine if you are an independent contractor rather than an employee:

The individual must represent to the public that an independent business exists to provide labor or services. This could be accomplished if at least four of the following circumstances exists:
1) The work is performed at a location separate from the private residence of the individual; or at a specific portion of the residence that is set aside for the business.
2) The individual purchases commercial advertising or business cards, or has a trade association membership.
3) A telephone listing and service separate from the residence is used for the business.
4) Written contracts are used to specify work requirements.

Having a separate phone number listed passes the test and gives you a better professional image. Remember reverse phone looks up? It looks better to have a business name rather than you and your spouse's name showing up.

Sincerely,
Mary Hettwer

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Mary Hettwer
Hettwer Virtual Office