What this notice is about We computed the tax on your Form 1040 or 1040-SR return. Your account balance is zero. What you need to do Read your notice carefully. It will explain how we calculated your tax return. You don't need to do anything if you agree with our calculations. Contact us if you disagree with the amount of tax we computed. Frequently asked questions What should I do if I disagree with the notice? Call us at the toll-free number on the top right corner of your notice. Please have your paperwork (such as cancelled checks, amended return, etc.) ready when you call. Helpful information Publication 505, Tax Withholding and Estimated Tax PDF Publication 4134, Low Income Taxpayer Clinic List PDF Publication 4681, Canceled Debts, Foreclosures, Repossessions and Abandonments PDF Tips for next time you file 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 需要協助嗎? 您可以授權某人(英文)代表您向國稅局聯絡。 請查看您是否符合從低收入納稅人協助中心(英文)獲得協助的資格。 如果您無法在線上找到您需要的資訊,請撥打您的通知或信件上方的國稅局號碼。如果您未收到信件或通知,請使用電話協助。 如果您無法自行解決罰款,請聯絡 IRS 內部的獨立組織——納稅人權益維護服務處。