
Form 1040 Tax Year 2020: Comprehensive IRS-Accurate Filing Checklist
2020 Form 1040 Distinguishing Features
The 2020 Form 1040, U.S. Individual Income Tax Return, represents a historically significant tax year due to the convergence of multiple unprecedented federal pandemic relief programs, substantial redesigns of the form relative to prior years, and temporary tax law modifications enacted through emergency legislation.
This form and its accompanying schedules must account for Economic Impact Payments (first and second), the unemployment compensation exclusion of up to $10,200, new line placements for estimated tax payments, the recovery rebate credit, a new virtual currency question positioned prominently on the form’s first page, and increased standard deduction amounts across all filing statuses.
The 2020 tax year is further distinguished by the optional availability of Form 1040-SR for taxpayers born before January 2, 1956, which uses identical line numbers and calculations as Form 1040 but employs larger font sizes and expanded entry spaces to accommodate senior filers.
Year-Specific Programs Applicable To 2020 Form 1040
The 2020 tax year encompasses several legislative and administrative developments that directly affect the completion and filing of Form 1040 and its required attachments.
Most significantly, the Coronavirus Aid, Relief, and Economic Security Act and subsequent legislation established the Economic Impact Payment program, administered through advance distributions during 2020 and reconciled via the Recovery Rebate Credit claimed on Form 1040, line 30.
Individuals who did not receive the complete first and second Economic Impact Payments must claim the Recovery Rebate Credit on their 2020 return to obtain any remaining balance to which they were entitled based on 2020 income.
The American Rescue Plan Act of 2021, enacted retroactively to apply to 2020, provides an exclusion from gross income of up to $10,200 of unemployment compensation if the taxpayer’s modified adjusted gross income is less than $150,000, with the same $10,200 exclusion applied separately to each spouse filing a joint return.
Additionally, the Coronavirus Aid, Relief, and Economic Security Act included a temporary above-the-line deduction for charitable contributions, limited to $300 for cash contributions to qualifying charities, if the taxpayer takes the standard deduction. This deduction was later increased to $600 for married taxpayers filing jointly and extended through 2020.
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.
Ten-Step Filing Checklist For Form 1040, Tax Year 2020
Step 1: Gather All W-2 Forms and Verify Wage and Tax Information
Before opening Form 1040, obtain Form W-2, Wage and Tax Statement, from each employer for whom work was performed during calendar year 2020.
The Form W-2 provides the employee’s total wages, salaries, and tips in Box 1, as well as the federal income tax withheld in Box 2. If you received income from two or more employers, retain a separate Form W-2 for each employer.
Verify that the name, Social Security number, and income amounts on each Form W-2 match your records and paycheck stubs. All Form W-2s must be attached to Form 1040 when filing.
Step 2: Collect All Forms 1099 and Other Income Documentation
Obtain and organize all Forms 1099 received during 2020 and early 2021, including Form 1099-INT (interest), Form 1099-DIV (dividends), Form 1099-MISC or Form 1099-NEC (miscellaneous income), Form 1099-B (capital gains), Form 1099-G (unemployment compensation and state tax refunds), and any other Forms 1099.
For 2020, if you received unemployment compensation, Form 1099-G will report the total amount paid to you. You must report the full amount of unemployment compensation on Schedule 1, line 7, and then exclude up to $10,200 using the Unemployment Compensation Exclusion Worksheet if your modified adjusted gross income is less than $150,000.
The IRS explicitly instructs that the first and second Economic Impact Payments are not includible in gross income. Still, you must know the exact amounts received to complete the Recovery Rebate Credit calculation on line 30 of Form 1040.
Step 3: Determine Filing Status and Verify Eligibility
Select one filing status on Form 1040: Single, Married Filing Jointly, Married Filing Separately, Head of Household, or Qualifying Widow(er).
A taxpayer claiming Head of Household must enter the name of the qualifying child or other qualifying person on Form 1040 in the space provided.
The filing status determination directly affects the standard deduction amount claimed on line 12, which for 2020 is as follows: Single, $12,400; Married Filing Jointly or Qualifying Widow(er), $24,800; Head of Household, $18,650; and Married Filing Separately, $12,400.
Step 4: Identify All Dependents and Verify Social Security Number Requirements
For each dependent claimed on Form 1040, enter the dependent’s name, Social Security number, relationship to you, and check the box indicating the type of credit claimed (Child Tax Credit or Credit for Other Dependents).
A Social Security number for the dependent must be valid for employment and must have been issued before the due date of your 2020 return, including any extension.
If you have more than four dependents, check the box indicating more than four dependents and provide additional dependent information on a separate sheet.
Step 5: Report All Income on Form 1040 and Schedule 1
Report income on Form 1040 as follows: Line 1 reports total wages, salaries, and tips from Form W-2; line 2b reports taxable interest; lines 3a and 3b report qualified dividends and ordinary dividends; lines 4a and 4b report IRA distributions; lines 5a and 5b report pensions and annuities; lines 6a and 6b report Social Security benefits; line 7 reports capital gains or losses; line 8 carries forward total additional income from Schedule 1, line 9.
For 2020, unemployment compensation reported on Schedule 1, line 7, must be the full amount paid. Still, you then complete the Unemployment Compensation Exclusion Worksheet to exclude up to $10,200 if your modified adjusted gross income is less than $150,000.
Step 6: Calculate Adjustments to Income and Complete Schedule 1
Schedule 1, Part II, lists adjustments to income that you may claim, including educator expenses, health savings account deductions, self-employment tax deduction, IRA deduction, and student loan interest.
All adjustments are summed on Schedule 1, line 22, which is then carried to Form 1040, line 10a.
For 2020, you may claim an above-the-line deduction for charitable contributions if you take the standard deduction; this deduction is limited to $300 for all filing statuses, or $600 if married filing jointly. This charitable contribution amount is entered on Form 1040, line 10b.
Step 7: Calculate Adjusted Gross Income and Determine Standard or Itemized Deductions
Add all income amounts on Form 1040, lines 1 through 8, to calculate total income, entered on line 9.
Enter total adjustments to income from Schedule 1, line 22, on Form 1040, line 10a, and enter any above-the-line charitable contribution amount on line 10b.
Subtract line 10c from line 9 to calculate adjusted gross income on line 11.
Determine whether to claim the standard deduction or itemize deductions on Schedule A.
For 2020, the standard deduction amounts are as follows: Single, $12,400; Married Filing Jointly, $24,800; Head of Household, $18,650; and Married Filing Separately, $12,400.
Step 8: Calculate Taxable Income, Tax, and Credits
Claim a deduction for qualified business income, if applicable, on line 13.
Calculate taxable income on line 15 by subtracting total deductions from adjusted gross income.
Calculate the tax using the tax tables provided in the 2020 Tax and Earned Income Credit Tables booklet; enter the calculated tax on line 16.
For 2020, the Child Tax Credit is $2,000 per qualifying child under age 17 at the end of 2020, and the Credit for Other Dependents is $500 per qualifying dependent. Complete the Child Tax Credit and Credit for Other Dependents Worksheet and enter the result on line 19.
Step 9: Complete Recovery Rebate Credit and Calculate Total Tax
For 2020, the Recovery Rebate Credit is entered on Form 1040, line 30.
You must know the amounts of any first and second Economic Impact Payments received during 2020; use the Recovery Rebate Credit Worksheet in the Form 1040 instructions to calculate the credit amount, which equals your income-based entitlement reduced by any Economic Impact Payments already received.
Enter federal income tax withheld from all Forms W-2 and 1099s on line 25d. Enter 2020 estimated tax payments on line 26.
Calculate the Earned Income Tax Credit, if eligible, and enter the result on line 27.
Step 10: Sign, Date, and File Form 1040
You and your spouse (if married filing jointly) must sign and date Form 1040 on the designated signature lines.
Verify that all required forms and schedules are attached, including all Forms W-2, Schedule 1 (if applicable), Schedule 2 (if applicable), Schedule 3 (if applicable), Schedule A (if itemizing), and any other required forms.
For paper filing, mail Form 1040 and all attachments to the appropriate IRS address based on your state of residence, as determined by the IRS Where to File page for Form 1040 2020.
Retain a copy of Form 1040 and all supporting documentation for tax records.
Significant Changes To Form 1040 For Tax Year 2020
Virtual Currency Question Added to Page 1
For 2020, the IRS moved the virtual currency question from Schedule 1 to the front of Form 1040 itself.
The question asks: “At any time during 2020, did you receive, sell, send, exchange, or otherwise acquire any financial interest in any virtual currency?”
You must answer “Yes” or “No” to this question.
Estimated Tax Payments Relocated to Form 1040, Line 26
Before 2020, estimated tax payments were reported on Schedule 3 of the tax return.
Beginning with 2020, these payments are reported directly on Form 1040, line 26, eliminating the need to reference Schedule 3 for this information.
Recovery Rebate Credit Added to Form 1040, Line 30
The Recovery Rebate Credit, enacted through the Coronavirus Aid, Relief, and Economic Security Act, is claimed on a new line 30 of Form 1040 for the 2020 tax year.
This credit reconciles the first and second Economic Impact Payments with your actual entitlement based on 2020 income, filing status, and number of qualifying dependents.
Above-the-Line Charitable Contribution Deduction Added to Line 10b
For 2020, taxpayers who claim the standard deduction may also claim an above-the-line deduction for cash contributions to qualifying charitable organizations on Form 1040, line 10b, without needing to itemize deductions.
This deduction is limited to $300 for all filing statuses, or $600 for married taxpayers filing jointly.
Standard Deduction Increased for All Filers
For 2020, the standard deduction is $12,400 for Single and Married Filing Separately filers, $24,800 for Married Filing Jointly and Qualifying Widow(er) filers, and $18,650 for Head of Household filers.
These amounts reflect annual inflation adjustments.
Form-Specific Limitations For 2020
Nonresident Aliens: Nonresident aliens cannot file Form 1040 using the Married Filing Jointly or Head of Household filing status. Nonresident aliens are subject to limitations on certain credits, including the Earned Income Tax Credit.
Married Filing Separately: Taxpayers filing Married Filing Separately cannot claim the Earned Income Tax Credit under any circumstances.
Dependents: A person claimed as a dependent on another taxpayer’s return cannot claim the full standard deduction; the dependent’s standard deduction is limited to the greater of $1,100 or the dependent’s earned income plus $400 for 2020.
Healthcare Marketplace Coverage: If you received advance premium tax credit payments, you must file Form 1040 and complete Form 8962 to reconcile the advance payments with your actual premium tax credit entitlement.
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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.

