Your Form 1120 Corporation Return Checklist for 2025 is Here!
Complete Your 2025 1120 Corporation Filing with Ticking all These Boxes.
Your 2025 Form 1120 Checklist Is Ready!
This checklist is made to ensure you don’t miss any crucial steps before filing your 1120 Corporation return. By ticking each box, you’ll have all the necessary documents and records organized and ready for submission. Ensure you meet deadlines without last-minute stress.
The Deadline to File Your 1120 - Corporation
Tax Extension is APRIL 15, 2025
Basic Information
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Verify Your Business Filing Type
Know your business return type as registered with the IRS (Forms 1065, 1120, or 1120S). Not sure? Call the IRS Business Help Line at 1-800-829-4933. -
Employer Identification Number (EIN)
Ensure you have your EIN. If not, apply online at IRS.gov. -
State Reporting Details
List all states where your business has a tax obligation (nexus) and include state ID numbers. -
Organizational Documents
Keep a copy of your articles of incorporation, bylaws, or any amendments. -
Prior Year Tax Returns
Review last year’s federal, state, and local tax filings for reference. -
Estimated Tax Payments
Record dates and amounts for all estimated tax payments made (federal, state, and local). -
C Corporation Election Documents
If applicable, include Form 2553 IRS acceptance letter. -
Check-the-Box Election
If Form 8832 was filed, include the acceptance letter for corporate taxation. -
Contact Details
Keep updated contact information for any inquiries about your filing.
Business and Financial Records
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Trial Balance Report
Prepare a trial balance or year-end summary from your accounting software. -
Bank and Credit Card Records
Provide statements supporting business expenses and interest. -
Payroll Reports
Compile payroll records, including issued W-2 and 1099 forms. -
Tax Payment Reports
Include all the federal unemployment, Social Security, and Medicare tax paid (Forms 940 and 941). -
State and Local Payroll Taxes
Detail state and local payroll taxes paid throughout the year. -
Multi-State Operations
Track revenue, payroll, and property details by state, if applicable. -
Inventory Records
Provide year-end inventory reports, including costs and quantities.
Documents Received
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Tax Forms
Collect all relevant forms received, including: 1099-B, 1099-DIV, 1099-INT, 1099-K, or 1199-MISK -
Schedule K-1
Include K-1 forms for entities your business owns. -
Credit Certificates
Gather all tax credit certificates from federal or state authorities.
Asset Records
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Depreciation Schedules
Maintain schedules for existing assets, detailing cost, date in service, and depreciation. -
New Assets
Record details for new purchases, including cost, purchase date, and usage percentage. -
Asset DisAsset Sales or Disposals
Report sales proceeds, original costs, and trade-in allowances for disposed assets. -
Vehicle Records
Maintain a mileage log for all vehicles, including business and total use. Include actual expenses like gas and maintenance costs.
Download Your 1120 Corporation Form Checklist 2025 Now
Make sure you’re ready for tax season. Get your 1120 Corporation Form Checklist for 2025 today!
