If face-to-face assistance is not a priority for you, you may also get help with IRS letters or resolve tax account issues by phone, toll free at 1-800-829-1040 (individuals) or 1-800-829-4933 (businesses). For information on where to file your tax return please see Where to File Addresses. The Taxpayer Advocate Service: Call (651) 312-7999 in Minneapolis/St. Paul or 1-877-777-4778 elsewhere, or see Publication 1546, The Taxpayer Advocate Service of the IRS.