What this notice is about This second notice is sent to tell the taxpayer we still haven’t received payment for taxes on Form 1040, U.S. Individual Income Tax Return, containing interest or dividend income after issuance of CP531. What you need to do Pay any taxes owed on your Form 1040 with interest or dividend income. You may want to Read about backup withholding. Review Publication 1335, Backup Withholding Questions and Answers PDF. View your payoff amount, payment history, or order transcripts using the Tax Account tool. Frequently asked questions What is backup withholding? Backup withholding is withholding on mostly interest and dividend income that the payer will withhold when we instruct them to do so. What is the backup withholding rate? The current rate is 24% and can increase or decrease with the tax laws. How long will the payer continue backup withholding? The payer should continue until we instruct them to stop or until the payee provides written certification from us that they’re no longer subject to backup withholding. Tips for next year File your tax return timely Report all interest and dividend income Pay all taxes due 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.