‚Ä¢ A complete S Corporation Form 1120S tax preparation checklist in Excel, built to walk you line by line through a professional business tax return
‚Ä¢ Includes a dedicated 2025 Tax-Year Updates for Form 1120S ‚Äì Big Beautiful Bill Focus tab so you do not miss new depreciation, QBI, interest and loss rules
‚Ä¢ Designed as a practical tax preparation checklist and tax documents checklist for busy CPAs, EAs, and small firm tax preparers

WHO IT’S FOR
‚Ä¢ Tax professionals preparing S corporation 1120S returns who want a consistent, repeatable workflow
‚Ä¢ Solo practitioners and small firms who need a tax prep checklist to train staff and standardize reviews
‚Ä¢ Bookkeepers and CFOs supporting S corp clients and wanting a clear checklist for tax preparation before sending files to the tax pro
‚Ä¢ Advanced DIY S corp owners who want to understand what their preparer should be asking for

WHAT‚ÄôS INCLUDED
‚Ä¢ Main 1120S Checklist tab ‚Äì structured as ‚ÄúChecklist Item ‚Äì Question ‚Äì Yes/No/N A‚Äù covering general items, attachment order, income, gains and losses, deductions, credits, shareholders, foreign reporting and more
‚Ä¢ Instructions tab ‚Äì ‚ÄúInstructions for Using the S Corporation 1120S Checklist‚Äù explaining Step 1 General Preparation through Step 4 Deductions and beyond so the team knows exactly how to use the tool
‚Ä¢ 2025 Tax-Year Updates tab ‚Äì focused on the One Big Beautiful Bill Act, including bonus depreciation reinstated to 100 percent ¬ß168k, higher ¬ß179 expensing limits, ¬ß174 R and D expensing, ¬ß163j ATI and ordering rules, QBI permanent extension and excess business loss rules
‚Ä¢ Clear review prompts for key schedules and forms including Schedule K and K1 K2 K3 Forms 4797 8949 8990 3800 and more
‚Ä¢ Professional layout ready to drop into your tax return workflow for S corporations

HOW TO USE IT
‚Ä¢ Start each S corp engagement by opening the checklist and walking through the general section checklist to confirm engagement letter entity details and attachment order
‚Ä¢ Use the Income Reporting and Gains and Losses from Sales of Property sections to make sure all trade rental portfolio and 1231 transactions are captured and reconciled
‚Ä¢ Work through the Deductions section to verify cost of goods sold salaries benefits meals repairs depreciation and other deductions with documentation before you finalize the return
‚Ä¢ Reference the 2025 updates tab any time you touch depreciation interest R and D or QBI so you are applying the new Big Beautiful Bill rules correctly
‚Ä¢ Use the Yes No N A columns as a documented due diligence trail for your workpapers and for quality review

WHY IT‚ÄôS HELPFUL (TAX/FINANCE CONTEXT)
‚Ä¢ Helps you avoid missed forms and schedules that can trigger IRS notices or amended returns
‚Ä¢ Bakes in a tax documents checklist so clients know exactly what to send and staff know exactly what to request
‚Ä¢ Builds consistency across your team during busy season and makes it easier to delegate 1120S work without sacrificing quality
‚Ä¢ Keeps you up to speed on 2025 Big Beautiful Bill changes that affect depreciation deductions ¬ß179 expensing ¬ß174 research costs ¬ß163j interest limitations ¬ß199A deductions and ¬ß461l excess business losses flowing to shareholders
‚Ä¢ Serves as part of your written tax due diligence checklist, improving risk management and client confidence

SOFTWARE COMPATIBILITY
‚Ä¢ Delivered as a fully editable Excel workbook XLSX
‚Ä¢ Opens in Microsoft Excel Google Sheets Numbers and most spreadsheet software that can read XLSX files
‚Ä¢ You can duplicate tabs customize questions and add firm specific notes to match your own 1120S workflow

INSTANT DOWNLOAD INFO
‚Ä¢ This is a digital download only ‚Äì no physical product will be shipped
‚Ä¢ Files are available for download from Etsy as soon as your payment clears
‚Ä¢ Because this is a digital template, all sales are final ‚Äì but if you have questions or suggestions for improvements, message us and our product team will review for future updates

1120s_tax_checklist

Tax Preparation Checklist 1120S S Corporation Tax Checklist 2025 S Corp Tax Organizer For CPAs And Small Firms Digital Excel Template