What this letter is about This letter explains what’s missing or incomplete on Form 8038-CP PDF which may delay processing of your return. What you need to do Send the requested information within 30 days from the date of the letter. If we don’t receive a response, we may not be able to correctly process your form. You may want to File electronically. Electronic filing of Form 8038-CP is expected to be available later in 2022. Visit the Tax-exempt bonds page for more information, tools and the community newsletter. 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.