Fill Out IRS Schedule 1 (Form 1040) Online

What is Schedule 1 used for

When the IRS redesigned Form 1040, many income and deduction lines moved onto numbered schedules. Schedule 1 is where you report income that is taxable but does not appear on the face of Form 1040, and where you claim what the IRS calls adjustments to income, sometimes described as above-the-line deductions.

Part I covers additional income. Part II covers adjustments. The totals from each part flow back to Form 1040, so the schedule works as a supporting worksheet that keeps the main return short.

• Part I income examples: taxable refunds of state and local taxes, alimony received under older agreements, business income from Schedule C, capital gain adjustments, unemployment compensation, gambling winnings, and other income such as prizes and awards
• Part II adjustment examples: educator expenses, health savings account deductions, the deductible part of self-employment tax, self-employed retirement and health insurance deductions, penalties on early withdrawal of savings, and student loan interest

Who needs to file Schedule 1

You attach Schedule 1 when you have any of the income types in Part I or want to claim any of the adjustments in Part II. Common triggers include receiving unemployment compensation, running a side business or gig work reported on Schedule C, receiving gambling or prize income, or paying student loan interest you want to deduct.

If all of your income fits on Form 1040 directly, for example wages, interest, dividends, and retirement distributions, and you claim no adjustments, you generally do not need Schedule 1.

How to fill out Schedule 1

Enter your name and Social Security number exactly as they appear on your Form 1040, then work through the two parts in order.

• Part I: report each type of additional income on its own line, including amounts that flow in from Schedule C, Schedule D adjustments, Schedule E, and Schedule F
• Line 8 has lettered sublines for other income types such as gambling winnings, prizes, jury duty pay, and digital asset income received as ordinary income
• Total Part I and carry the amount to the additional income line on Form 1040
• Part II: enter each adjustment you qualify for, such as educator expenses, HSA contributions made outside payroll, and student loan interest
• Total Part II and carry the amount to the adjustments line on Form 1040

How Schedule 1 attaches to Form 1040

Schedule 1 never stands alone. Its Part I total is added to the wages, interest, and other amounts on Form 1040 to reach total income, and its Part II total is subtracted to reach adjusted gross income. If you file on paper, attach Schedule 1 behind Form 1040 in the sequence number order printed in the top right corner of each schedule.