What this notice is about We made changes to your return because we believe there’s a miscalculation. As a result, you are due a refund. What you need to do You don't need to do anything. If you haven't received it already, you should receive a refund of the overpaid amount within 4-6 weeks as long as you owe no other taxes or debts we are required to collect. You may want to Compare the figures on the notice with your tax return. If you agree with our changes, correct the copy of your tax return that you kept for your records. Complete and send us a Form 2848, Power of Attorney and Declaration of RepresentativePDF, to authorize someone (such as an accountant) to contact us on your behalf. Frequently asked questions What if I do not receive my refund in 4-6 weeks? If you don’t owe other taxes or debts we’re required to collect, such as child support, and 6 weeks have lapsed, call us at the toll-free number listed on the top right corner of your notice. What if I disagree with the changes you made and don’t want the refund? Contact us at the toll-free number listed on the top right corner of your notice to stop the refund. Helpful information Publication 15, (Circular E), Employer's Tax Guide Publication 15-A, Employer's Supplemental Tax Guide (Supplement to Pub.15, Employer's Tax Guide) Publication 15-B, Employer's Tax Guide to Fringe Benefits Tips for next year Consider filing your taxes electronically. Filing online can help you to avoid mistakes and to find credits and deductions for which you may qualify. In many cases you can file electronically 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. If you didn’t receive a letter or notice, use telephone assistance. If you can't resolve the penalty on your own, contact Taxpayer Advocate Service, an independent organization within IRS.