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Understanding Your CP148B Notice


When we change a business address in our records, we send a CP 148B to the old address. We issued a notice of confirmation of an address change to both the employer's former and new address.

What you need to do

You may want to

  • Keep the notice for your permanent records.
  • Submit a Form 8822-B when you need to update your address.

Answers to Common Questions

Why did the IRS change my address?

We update an address when we receive:

  • Form 8822-B
  • Employment tax return with an address different from what's on our records.
  • Any address variation from the address of record for the business entity, e.g. interchanging "Street" for "St."


Page Last Reviewed or Updated: 10-Nov-2016

Printable samples of this notice (.pdf)



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