Form 1120 Tax Year 2019 Filing Checklist
Year-Specific Context
Form 1120 for tax year 2019 incorporates Tax Cuts and Jobs Act provisions effective from 2018 through 2025, including the permanent 21 percent corporate tax rate and net operating loss carryback elimination. For 2019, net operating loss deductions no longer permit carryback to prior years. Corporations with 2019 NOLs may carry forward losses indefinitely, subject to an 80 percent taxable income limitation.
Section 965: Repatriation Tax Reporting on Line 32 requires an attachment to Form 965-B for corporations with inclusion amounts or installment payments from the transition tax. Qualified Opportunity Fund election requirements debut with Form 8996 as a filing condition. Schedule M-3 thresholds, at $10 million in total assets, supersede Schedule M-1 for filers with larger assets. Corporations with aggregate gross receipts and total assets of less than $250,000 are exempt from the balance sheet and reconciliation schedules.
Ten-Step Filing Checklist
Step 1: Confirm Filing Requirement and Form Selection
Verify the corporation existed for any part of 2019 and was not required to file a special return such as Form 1120-S for S corporations, Form 1120-F for foreign corporations, Form 1120-C for cooperatives, Form 1120-PC for property and casualty insurance companies, or Form 1120-L for life insurance companies. Confirm domestic corporation classification or LLC filing of Form 8832 election to be taxed as a corporation.
If the corporation dissolved in 2019, file the final return by the 15th day of the third month after the date of dissolution. Check the final return box on page 1 of Form 1120.
Step 2: Gather Income and Deduction Documentation
Collect gross receipts records, cost of goods sold documentation requiring Form 1125-A attachment, depreciation schedules on Form 4562, and charitable contribution substantiation subject to the 10 percent of taxable income limitation. Obtain officer compensation records, interest expense documentation, and any section 267A interest or royalty disallowance calculations.
Calculate total receipts and total assets to determine whether Schedules L, M-1, and M-2 are required. An exemption applies if both total receipts and total assets are under 250,000 dollars at year-end.
Step 3: Document Ownership Structure and Related Parties
Gather a shareholder list including names, addresses, social security numbers or employer identification numbers, and stock ownership percentages. Document foreign ownership if any person owned 25 percent or more of voting power or value, which triggers the Form 5472 filing requirement.
Identify affiliated group membership, controlled group status, or parent-subsidiary relationships. Collect Form 851 documentation if filing a consolidated return. Record subsidiary consent forms on Form 1122 for first-year consolidated members.
Step 4: Calculate Taxable Income Components
Complete Schedule C for dividends, inclusions, and special deductions. Report dividends from less-than-20-percent-owned domestic corporations with a 50 percent deduction. Report dividends from 20-percent-or-more-owned domestic corporations with a 65 percent deduction. Report dividends from 80-percent-or-more-owned domestic corporations with a 100 percent deduction.
Calculate net operating loss deduction on line 29a using only carryforward amounts. No carryback is permitted for 2019 NOLs. NOLs carried forward from prior years may offset up to 80 percent of taxable income before the NOL deduction. Report any section 965 inclusion amounts with the Form 965 attachment. Reconcile book income to tax income using Schedule M-1 if not filing Schedule M-3.
Step 5: Determine Schedule M-3 Requirement
File Schedule M-3 instead of Schedule M-1 if total assets at the end of the tax year equal or exceed 10 million dollars. Alternatively, you may voluntarily file Schedule M-3 regardless of the asset threshold. If both total receipts and total assets are under 250,000 dollars at year-end, the corporation may omit Schedules L, M-1, and M-2. Report cash distributions on Schedule K, question 13 instead.
Step 6: Complete Schedule L Balance Sheet
If required, report beginning-of-year and end-of-year balance sheets in columns (b) and (d). Include cash, accounts receivable (less allowance for bad debts), inventories, U.S. government obligations, tax-exempt securities, depreciable and depletable assets (less accumulated depreciation and depletion), intangible assets (less accumulated amortization), and other assets.
In the liabilities section, report accounts payable, short-term debt, current liabilities, shareholder loans, long-term debt, other liabilities, capital stock, including preferred and common, additional paid-in capital, retained earnings, both appropriated and unappropriated, adjustments to equity, and treasury stock at cost. Total assets on line 15, column (d), must reconcile to Schedule M-3, line 11 if Schedule M-3 is required.
Step 7: Complete Schedule J Tax Computation
Calculate income tax on line 2 using the current 21 percent corporate tax rate, which is permanent under the Tax Cuts and Jobs Act. Report personal holding company tax on line 8 if the corporation meets the definition and Schedule PH is attached.
Report applicable credits on lines 5a through 5e. Include foreign tax credit on Form 1118, general business credits on Form 3800, prior-year minimum tax credit on Form 8827, and bond credits on Form 8912. The corporate alternative minimum tax was repealed for tax years beginning after December 31, 2017. Corporations with unused AMT credits may claim refundable credits under the TCJA transition rules.
Enter estimated tax payments made during 2019 on line 14. For calendar-year corporations, installment due dates are April 15, June 15, September 16, and December 16. Report any tax withheld from Forms 1042-S, 8805, or 8288-A on line 19. Calculate the amount owed on line 35 or the overpayment on line 36.
Step 8: Complete Schedule K Other Information
Answer all 25 questions on Schedule K. Check the accounting method used, including cash, accrual, or others, with a specification. Enter the principal business activity code and provide a brief business activity description. Indicate affiliated or controlled group status and foreign or domestic ownership thresholds.
Report whether dividend payments exceeded earnings and profits, which requires Form 5452 if yes. Report whether any foreign person owned 25 percent or more at year-end, which requires Form 5472. Enter the amount of tax-exempt interest received. Report the shareholder count if 100 or fewer. Indicate whether the corporation elects to forego the NOL carryback period for pre-2018 NOLs.
Report section 267A interest or royalty disallowance amounts. Indicate whether average gross receipts for the three prior years exceeded 500 million dollars. Report tax shelter status and Qualified Opportunity Fund certification with Form 8996 attached if yes. Indicate whether Schedule UTP is required for uncertain tax positions.
Step 9: Assemble Return and Obtain Signatures
Attach all schedules and forms after page 6 in the prescribed order. Begin with Schedule N for foreign operations, followed by Schedule D for capital gains and losses, Form 4797 for business property sales, Form 1125-A for cost of goods sold, Form 8825 for rental real estate, and additional forms in numerical order. Attach supporting statements and schedules alphabetically.
A corporate officer must sign and date the return under penalties of perjury. Authorized signers include the president, vice president, treasurer, assistant treasurer, chief accounting officer, or other duly authorized officer. Include the signer’s title.
If a paid preparer completed the return, the preparer must sign, include their preparer tax identification number, and complete all preparer information. Check the authorization box if the IRS may discuss the return with the preparer. Attach Form 2220 if an estimated tax penalty applies, and an underpayment occurred.
Step 10: Verify Special Requirements Before Filing
Confirm small business taxpayer status if average gross receipts are 25 million dollars or less for the three prior tax years. This threshold impacts inventory accounting methods and the availability of the cash method. The 25 million dollar threshold applies to tax year 2019.
Verify estimated tax penalty calculations using Form 2220 if tax liability is $500 or more and insufficient quarterly deposits were made. Check whether Form 965 is required for section 965 inclusions or payments. Confirm whether Form 5471 is required for controlled foreign corporations or whether Form 5472 is required for 25 percent foreign ownership.
Ensure Schedule UTP is completed if uncertain tax positions exist. If a Section 355 distribution occurred, include the required statement as per Regulations Section 1.355-5. If a dual consolidated loss was incurred, file the required statement. Consult the current IRS Where to File instructions for the correct mailing address based on the corporation’s state and asset size.
Form-Specific Limitations
Foreign Corporation and Nonresident Alien Restrictions
Foreign corporations cannot claim certain domestic-source credits and must use Form 1120-F instead of Form 1120. Domestic corporations controlled by foreign persons are required to file a supplemental Form 5472 to report related-party transactions. Form 5472 is required if any foreign person owned 25 percent or more of the corporation at any time during the tax year.
Schedule Exemptions for Small Corporations
Corporations with total receipts under 250,000 dollars and total end-of-year assets under 250,000 dollars may omit Schedules L, M-1, and M-2. Both thresholds must be met to qualify for this exemption. Instead of completing these schedules, report cash and property distribution amounts on Schedule K, question 13.
Credit Limitations
General business credits reported on Form 3800, line 5c, are limited to the excess of regular tax liability minus certain credits over 25 percent of regular tax liability exceeding 25,000 dollars. Foreign tax credit on Form 1118 is applied before general business credits. The prior-year minimum tax credit on Form 8827 is refundable under the TCJA transition rules for corporations with unused AMT credits from years preceding the AMT repeal.
Net Operating Loss Restrictions
Net operating losses incurred in 2019 cannot be carried back to prior years because TCJA eliminated the carryback provision. NOLs may be carried forward indefinitely rather than the previous 20-year limit. For 2019, NOLs carried forward from prior years may offset only 80 percent of taxable income before the NOL deduction, unless an exception applies for farming businesses, agricultural cooperatives, life insurance companies, or real estate investment trusts.
The election to forego the carryback period on Schedule K, line 11, applies only to NOLs from tax years beginning before 2018. Since 2019, NOLs have had no carryback period under current law; therefore, this election does not apply to NOLs and subsequent years from 2019.
Charitable Contribution Limitation
Charitable contributions are deductible up to 10 percent of taxable income computed without regard to the contribution deduction and without regard to the NOL deduction. Excess contributions may be carried forward for up to five years and deducted on a first-in, first-out basis.
2019 Form Changes
Section 965 Repatriation Tax Reporting
Line 32 on page 1 requires entry of the 2019 net section 965 tax liability from Form 965-B, Part II, line 3 for corporations with section 965 inclusions. Schedule J, Part II, includes a dedicated section for Section 965 payments, with line 12 specifically designated for these amounts.
Qualified Opportunity Fund Certification
Schedule K, question 25, was added for 2019 to require certification of Qualified Opportunity Funds. The Form 8996 attachment is mandatory if the corporation answers "yes" to this question.
Dividends-Received Deduction Clarification
Schedule C clarifies that Section 965(a) inclusions receive special deduction treatment. The deduction is 100 percent for wholly owned foreign subsidiaries and 100 percent for the foreign-source portion of dividends from 10-percent-owned foreign corporations.
Net Operating Loss Deduction Updates
Line 29a reflects that carryback was eliminated for NOLs arising in tax years beginning after December 31, 2017. The election to forego carryback applies only to pre-2018 NOLs. NOLs carried forward are subject to the 80 percent taxable income limitation.
Filing Deadlines
The return must be filed by April 15, 2020, for calendar-year corporations. An automatic six-month extension to October 15, 2020, is available by filing Form 7004. Corporations with fiscal years have different deadlines based on their year-end. A fiscal year ending June 30 requires filing by September 15, 2019.
If you file under extension, estimated tax payments are still due by the original April 15 deadline for calendar-year corporations. Extensions apply only to the filing deadline, not to the payment deadline. Interest and penalties accrue on unpaid tax from the original due date.
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This checklist is for educational purposes only and does not constitute tax or legal advice. Always review official IRS instructions and consult a qualified professional for guidance.
