What this notice is about We made changes to your return because we believe there's a miscalculation. You're not due a refund nor do you owe an additional amount because of our changes. Your account balance is zero. What you need to do Review the notice and compare our changes to the information on your tax return. Correct the copy of your tax return that you kept for your records. You don't need to do anything if you agree with the notice. If you disagree with the notice, please contact us at the toll-free number listed on its top right corner (within 60 days of its date). Frequently asked questions Why did I receive this notice? We sent you the notice because we corrected one or more miscalculations on your tax return. How can I find out what caused the changes to my tax return? Please contact us at the toll-free telephone number listed on the top right corner of the notice for more specific information about the changes to your tax return. What should I do if I disagree with the changes you made? Contact us at the toll free number listed on the top right corner of your notice if you disagree with the changes we made. What should I do if I need to make another correction to my tax return? You'll need to file an amended return PDF to make a correction. Helpful information Publication 505, Tax Withholding and Estimated Tax PDF Tips for next year Consider filing your taxes electronically. Filing online can help you 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. Reference Tools Publication 1, Your Rights as a Taxpayer Publication 17, Your Federal Income Tax Full list of tax forms and instructions Need Help? You can authorize someone to contact the IRS on your behalf. See if you qualify for help from a Low Income Taxpayer Clinic. If you can’t find what you need online, call the IRS number at the top of your notice or letter.