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  2. Firstbase Mailroom
  3. Business Address FAQs

Business Address FAQs

Information about your company's address and virtual mail services

  • Will Firstbase provide a US address for my company?
  • Business address change over the phone with the IRS
  • Mailing Address vs. Residential Address
  • Why do I need a US business address?
  • Will mail service operators open my packages?
  • 148A/B Form: Why did the IRS mail this to me?
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