What this notice is about You’re due a refund due to a miscalculation. What you need to do Follow the instructions in your notice. If you agree with the changes we made: You don’t need to respond. You should receive a refund check in 4-6 weeks if you don't owe other tax or debts we're required to collect. Correct your copy of your tax return, but do not send it to us. If you don't agree: You can call or write to us using the information on your notice. Frequently asked questions What caused my tax return to change? The explanation is on the notice. If you need additional information, you can call us at the phone number on your notice. Tips for next year Consider filing your taxes electronically. You can avoid mistakes and find credits and deductions that you may qualify for. In many cases, you can file for free. Learn more about e-file. To avoid the same issue next year, correct your copy of this year's tax return. If you use a tax preparer, give them a copy or have them correct their copy. Reference Tools Publication 1, Your Rights as a Taxpayer Full list of tax forms and instructions Need Help? You can authorize someone to contact the IRS on your behalf. If you can’t find what you need online, call the IRS number at the top of your notice or letter.