We ask for the information on these forms to carry out the Internal Revenue laws of the United States. You are required to give us the information. We need it to ensure that you are complying with these laws and to allow us to figure and collect the right amount of tax.
You are not required to provide the information requested on a form that is subject to the Paperwork Reduction Act unless the form displays a valid OMB control number. Books or records relating to a form or its instructions must be retained as long as their contents may become material in the administration of any Internal Revenue law. Generally, tax returns and return information are confidential, as required by section 6103.
Estimates of Taxpayer Burden. The following tables show burden estimates based on current statutory requirements as of December 2025 for taxpayers filing 2025 Forms 1065, 1120, 1120-C, 1120-F, 1120-H, 1120-ND, 1120-S, 1120-SF, 1120-FSC, 1120-L, 1120-PC, 1066, 1120-REIT, 1120-RIC, 1120-POL, and related attachments. Time spent and out-of-pocket costs are presented separately. Time burden is broken out by taxpayer activity, with reporting representing the largest component. Out-of-pocket costs include any expenses incurred by taxpayers to prepare and submit their tax returns. Examples include tax return preparation and submission fees, postage and photocopying costs, and tax preparation software costs. While these estimates don’t include burden associated with post-filing activities, IRS operational data indicate that electronically prepared and filed returns have fewer arithmetic errors, implying lower post-filing burden.
Reported time and cost burdens are national averages and don’t necessarily reflect a “typical” case. Most taxpayers experience lower than average burden, with taxpayer burden varying considerably by taxpayer type.
The average burden for partnerships filing Forms 1065 and related attachments is about 60 hours and $5,300; the average burden for corporations filing Form 1120 and associated forms is about 90 hours and $8,600; and the average burden for Forms 1120-REIT, 1120-RIC, 1120-S, and all related attachments is about 60 hours and $4,800. Within each of these estimates there is significant variation in taxpayer activity. Tax preparation fees and other out-of-pocket costs vary extensively depending on the tax situation of the taxpayer, the type of software or professional preparer used, and the geographic location. Third-party burden hours are not included in these estimates.
Comments. If you have comments concerning the accuracy of these time estimates or suggestions for making these forms simpler, we would be happy to hear from you. You can send us comments through IRS.gov/FormComments. Or you can write to the Internal Revenue Service, Tax Forms and Publications, 1111 Constitution Ave. NW, IR-6526, Washington, DC 20224. Do not send the tax form to this address. Instead, see Where To File, earlier, near the beginning of the instructions.
