how to change mailing address for irs?

Answer 1

Just call them and let them know or drop them a line.
They may even have a form on their website you can fill out.

Answer 2

If you have moved or your address has changed, you need to notify the IRS to ensure you receive any IRS refund or correspondence. You may provide your new address in a variety of ways. You may correct the address legibly on the mailing label from your tax package or write the new address on your return when you file. When your return is processed, we will update your records.

If you change your address after filing your return, you should notify your post office that services your old address. This ensures your mail will be forwarded (not all post offices forward government checks). To change your address with the IRS, complete a Form 8822 (PDF), Address Change Request. This is available on the IRS website at www.irs.gov.

If you correspond to inform us of your address change, we need your full name, old and new addresses, and your Social Security Number or Employer Identification Number and signature. If you filed a joint return, you should provide the same information and signatures for both spouses.

Send your address change information to the campus where you filed your last return and provide your new address.(The campus addresses are listed in the instructions to the tax forms.)