You must complete the applicable IRS worksheet for the EIC, the CTC/ACTC/ODC, and/or the AOTC (or your own worksheet that provides the same information), as well as all required forms and schedules for each credit claimed on the return for which you are the paid tax return preparer. You can find the worksheets for the EIC and the CTC/ACTC/ODC in the instructions for Forms 1040 and 1040NR. The ACTC worksheet can also be found in the instructions for Forms 1040-SS and 1040-PR. You can find the AOTC worksheet in the Instructions for Form 8863. Completion of these forms, schedules, and worksheets assists you in determining the taxpayer’s eligibility for the credit and the correct amount of the credit and is required under the due diligence requirements set forth in Treasury Regulations. If the taxpayer claimed HOH filing status and did not claim any of the credits, check the "N/A" box.