Where do i mail my federal tax return? Where do i mail my minnesota tax return ? Where do i mail my north dakota tax return?

Federal Tax Mailing Address With or Without a Payment

Minnesota Individual Income Tax

Mail Station 0010

St. Paul, MN 55145-0010

Be sure to include enough postage to avoid having your forms returned to you by the U.S. Postal Service. You’ll probably need additional postage if you enclose more than three sheets of paper.

Mail your completed North Dakota individual income tax return to:

Office of the State Tax Commissioner
PO Box 5621
Bismarck, ND 58506-5621

Where do I mail my federal return for Minnesota 

Please see the link in TomK's answer above, if you are asking about the federal return. The address depends on where you live and whether you owe or are getting a refund.

If you are asking about the Minnesota state return, note that the address has been updated slightly:

Minnesota Individual Income Tax
Mail Station 0010
600 N. Robert St.
St. Paul, MN 55145-0010