Tax Questions & Tips

Schedule 1 (Tax Form 1040) Explained

Updated: February 14th, 2025 Updated: Feb 14, 2025 Read time: 5 min

Woman using a calculator to fill out Schedule 1 and tax Form 1040

Whether freelancing, earning rental income, or collecting unemployment benefits, you’ll probably need a Schedule 1 tax form this year. But what is a Schedule 1 tax form? Schedule 1 is important for reporting additional income and claiming valuable tax adjustments that could reduce what you owe.

Keep reading to learn more about the Schedule 1 Form 1040. We’ll explain exactly what it is, who needs it, and how to use it to your advantage. We’ll also break down how to fill out this important tax document. 

What Is Schedule 1?

So, what does Schedule 1 mean? A Schedule 1 tax form is an additional form that some taxpayers must file with their Form 1040. It’s essentially where you report income and adjustments that don’t fit the primary tax return.

The Schedule 1 has two main parts:

  • Part I is for reporting extra income beyond your regular wages or salary
  • Part II lets you claim certain adjustments that can lower your taxable income

Understanding these parts is crucial to knowing if you must include this form when preparing for tax season

What Is the Difference Between Schedule 1 and Schedule C?

While both forms deal with reporting income, Schedule C and Schedule 1 tax forms serve different purposes. Schedule 1 is a broader form used to report various types of additional income and adjustments. On the other hand, Schedule C is specifically for reporting profit or loss from a business. 

Think of Schedule 1 as a general catch-all form for reporting extra income. This includes unemployment benefits, Social Security benefits, rental income, and certain adjustments to income. Schedule C focuses solely on business income and expenses for self-employed individuals. 

Who Needs to File Schedule 1?

Not everyone has to file a tax return with Schedule 1. Whether you need to file depends on your financial situation. You’ll need Schedule 1 if you have: 

  • Unemployment compensation
  • Business income (you’ll also need Schedule C)
  • Rental property income
  • Farming income
  • Gambling winnings
  • Alimony received
  • Other income not reported on your W-2

You’ll also need Schedule 1 if you’re claiming certain adjustments like:

  • Self-employed tax deductions
  • Student loan interest
  • Educator expenses
  • Health savings account contributions
  • Moving expenses (for military members)
  • Alimony paid

Before you begin, make sure you have all the necessary tax documents ready. Also, check if you meet the minimum income requirement to file taxes

Focused man files his Schedule 1 online while handling his tax documents

How to Fill Out Schedule 1

Now that you understand the Schedule 1 tax form meaning, let’s break down how to complete this form correctly. 

1. Report additional income in Part I

    Part I of Schedule 1 covers additional income sources beyond your regular wages on lines 1 to 9. 

    Before listing specific amounts, gather all relevant documentation like 1099 forms, rental income records, and any other income statements. 

    Here’s what each line in Part I covers: 

    • Line 1: Report taxable refunds, credits, or offsets of state and local income taxes 
    • Line 2: Enter alimony received
    • Line 3: Record business income or loss (from Schedule C)
    • Line 4: Report other gains or losses (from Form 4797)
    • Line 5: Enter income from rental real estate, royalties, partnerships, S corporations, and trusts 
    • Line 6: Record farm income or loss
    • Line 7: Report unemployment compensation
    • Line 8: Enter other income, including prizes, gambling winnings, jury duty pay, etc
    • Line 9: Add all amounts and enter the total

    2. Report adjustments to income in Part II

      Part II focuses on adjustments that reduce your taxable income on lines 11 to 26. These adjustments are important because they can lead to valuable tax write-offs. You’ll enter the amounts for each adjustment if applicable.

      Before starting this section, gather documentation for any deductions you’re eligible for. 

      • Line 11: Enter educator expenses (up to $300 for qualifying K-12 teachers) 
      • Line 12: Record business expenses for reservists, performing artists, and fee-basis government officials 
      • Line 13: Enter health savings account deduction (from Form 8889) 
      • Line 14: Report moving expenses for active duty military members (from Form 3903)
      • Line 15: Enter the deductible portion of self-employment tax. This is the employer-equivalent portion (half of what you paid during the year)
      • Line 16: Record self-employed SEP, SIMPLE, and qualified plans (contribution limits are adjusted annually by the IRS. Your self-employment income determines SEP IRA limits and additional catch-up contributions for those 50 or older. SIMPLE IRA and qualified plans have standard annual limits)
      • Line 17: Enter your self-employed health insurance deduction (you can deduct 100% of health, dental, and long-term care insurance premiums. This applies to you, your spouse, and your dependents. This is only if you’re not eligible for employer-sponsored coverage)
      • Line 18: Record penalty on early withdrawal of savings from CDs or other time-deposit accounts. Your bank will provide Form 1099-INT or 1099-OID with this amount
      • Line 19: Enter alimony paid and recipient’s SSN (only for divorce agreements finalized before 2019) 
      • Line 20: Record the traditional IRA deduction (up to $7,000 for 2024 or $8,000 if you’re 50 or older. This is subject to income limits if you or your spouse have a retirement plan at work)
      • Line 21: Enter the student loan interest deduction (deduct up to $2,500 for a modified adjusted gross income under $80,000. Or, $165,000 if filing jointly with your spouse)
      • Line 22: Skip this line. The IRS has left it blank for potential new tax adjustments they might add in the future
      • Line 23: Enter your Archer MSA deduction if you have a Medical Savings Account (MSA)
      • Line 24: This line covers several specific adjustments (e.g., jury duty pay and deductible expenses)
      • Line 25: Add up all the items in Line 24
      • Line 26: Calculate your total adjustments by adding all applicable amounts from lines 11 to 24
      Couple seeks help from tax professional to fill out Schedule 1 

      Tackle Schedule 1 with Confidence 

      Schedule 1 helps you report extra income sources and claim valuable tax deductions. Many taxpayers miss potential savings because they overlook key adjustments. This is especially true for those who are self-employed, have multiple income streams, or qualify for specific deductions.

      Professional tax support can make a difference in your tax outcome. Sun Loan understands that tax season can be stressful. That’s why we offer comprehensive tax preparation services to help you confidently complete forms like Schedule 1. 

      Whether you want to file state taxes or need help with complex tax situations, our experienced team can help you claim eligible deductions and report income correctly, potentially maximizing your refund. Try our online, in-person, or drop-off tax services today.

      Author – Doug Flach

      Doug Flach is a partner at Accurate Tax Solutions, a tax preparation firm based out of Alpharetta, GA. Doug’s resume boasts over two decades in the tax industry with a specialization in tax return p... Read more »

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