Adjusted Gross Income appears on line 11 of the 2024 Form 1040

Adjusted Gross Income (AGI) is the number the IRS uses to determine how much tax you owe and whether you can claim certain deductions and credits. On Form 1040, it sits on line 11, near the top of the second page. This is the result after you subtract specific deductions — called "above-the-line" deductions — from your total income.

AGI is not the same as your total income or your taxable income. Your total income includes everything you earned: wages, interest, dividends, self-employment income, and other sources. Your taxable income comes later, after you subtract either the standard deduction or itemized deductions. AGI is the middle step, and it matters because many tax benefits phase out based on AGI, not total income.

If you use tax software like TurboTax, H&R Block, or TaxAct, the program calculates AGI for you and places it on line 11 automatically. If you prepare your return by hand, you will add up your income on lines 1 through 9, then subtract your deductions on lines 10a and 10b, and the result is your AGI.

Key Takeaways

  • Adjusted Gross Income is on line 11 of Form 1040 and represents your income after subtracting certain deductions but before the standard or itemized deduction.
  • The deductions that lower your AGI include educator expenses, student loan interest, IRA contributions, and self-employment tax, among others.
  • Many tax credits and deductions have income limits based on AGI, so a lower AGI can unlock benefits you would not otherwise receive.
  • Tax software calculates AGI automatically, but if you file by hand, you add lines 1–9 and subtract lines 10a and 10b to find your AGI.

What income goes into the calculation before AGI

Lines 1 through 9 of Form 1040 are where you report all your income sources. Line 1 is wages, salaries, and tips from your W-2 forms. Line 2 is interest income. Line 3 is ordinary dividends. Lines 4 through 8 cover capital gains, IRA distributions, pensions, Social Security, and other income categories. Line 9 is "other income," a catch-all for things like rental income, gambling winnings, or jury duty pay.

You add all these lines together to get your total income. This total is not your AGI yet — it is the starting point. From this total, you then subtract the deductions on lines 10a and 10b to arrive at AGI on line 11.

Which deductions reduce your income to AGI

The deductions that lower your total income down to AGI are sometimes called "above-the-line" deductions because they appear above the line where you calculate AGI. These are different from the standard deduction or itemized deductions, which come later and reduce your taxable income.

Common above-the-line deductions include educator expenses (up to $300 per year if you are a teacher), student loan interest (up to $2,500), contributions to a traditional IRA, self-employment tax (half of what you paid), health insurance premiums if you are self-employed, and contributions to a Health Savings Account. If you are a may have access to artist or performing artist, you may also deduct business expenses here. The exact list changes slightly from year to year, so check the Form 1040 instructions for the tax year you are filing.

On the 2024 Form 1040, line 10a shows the total of these deductions, and line 10b is reserved for any additional adjustments the IRS may add. You subtract line 10 from your total income on line 9, and the result is your AGI on line 11.

Why AGI matters more than total income

The IRS uses AGI to determine whether you can claim certain tax credits and deductions. For example, the Earned Income Tax Credit, the Child Tax Credit, and the American Opportunity Tax Credit all have income limits based on AGI. If your total income is above the limit but your AGI is below it, you may still may have access to for the credit.

Similarly, if you want to deduct medical expenses, charitable contributions, or casualty losses, the IRS applies a percentage threshold to your AGI, not your total income. A lower AGI means you can deduct more of these expenses. The same is true for the deduction you can take if you have a net operating loss.

This is why some people with high total income but large above-the-line deductions (such as self-employed people with significant business expenses) may have a much lower AGI and therefore may have access to for benefits they would not otherwise receive.

How to find AGI if you use tax software

If you file using TurboTax, H&R Block, TaxAct, or another tax software, the program walks you through questions about your income and deductions, then calculates your AGI automatically. You do not have to do the math yourself. The software will show you your AGI on a summary page, usually labeled "Tax Summary" or "Your Return," and it will also appear on line 11 of your Form 1040 when you print or e-file it.

Most software also shows you a line-by-line breakdown of your return, so you can see exactly which income and deductions went into the AGI calculation. If you want to verify the number, you can look at that breakdown or print a copy of your return before you file.

How to calculate AGI by hand

If you are preparing your return without software, the calculation is straightforward. First, add up all your income from lines 1 through 9. Write that total on line 9. Then, add up all your above-the-line deductions and write the total on line 10a. Subtract line 10a from line 9. The result is your AGI, which goes on line 11.

For example, if your total income is $65,000 and you have $5,000 in above-the-line deductions (such as student loan interest and an IRA contribution), your AGI would be $60,000. This $60,000 is what the IRS uses to check whether you may have access to for credits, and it is also the number you use to determine whether you can take certain deductions.

The Form 1040 instructions, which the IRS publishes each year, include a worksheet to help you calculate AGI if you have complex income or deductions. You can read the instructions and worksheets from IRS.gov at no cost.

Common mistakes when finding AGI

One frequent mistake is confusing AGI with taxable income. Taxable income comes after you subtract the standard deduction or itemized deductions from your AGI. If you are looking at line 11 and thinking it is your final tax number, you are looking at the wrong line. Line 11 is an intermediate step.

Another mistake is forgetting to include all your income sources. If you have a W-2 job, a side business, investment income, and rental income, you need to report all of it on Form 1040. Missing even one source of income will make your AGI wrong and could trigger an audit or a notice from the IRS.

A third mistake is claiming above-the-line deductions you do not actually may have access to for. For example, you can only deduct educator expenses if you are a K–12 teacher, and you can only deduct student loan interest if you paid it and are not claimed as a dependent on someone else's return. Read the Form 1040 instructions carefully to make sure each deduction applies to your situation.

Frequently Asked Questions

Is AGI the same as my income from my W-2?

No. Your W-2 shows only wages from one employer. AGI includes all your income sources — wages, interest, dividends, self-employment income, and more — minus certain deductions. If you have only one W-2 and no other income or deductions, your AGI will be close to your W-2 wages, but it is still not the same number.

Can I lower my AGI by taking the standard deduction?

No. The standard deduction reduces your taxable income, not your AGI. AGI is calculated first, using only the above-the-line deductions on lines 10a and 10b. The standard deduction is subtracted after AGI is calculated. If you want to lower your AGI, you need to increase your above-the-line deductions, such as contributing more to a traditional IRA or paying more student loan interest.

What if I do not see line 11 on my Form 1040?

Line 11 is on page 2 of the 2024 Form 1040, in the section labeled "Income." If you are using an older version of the form or a different tax year, the line number may be different. Check the form instructions for your specific tax year, or use tax software, which will calculate AGI regardless of line numbering.

Does my AGI change if I claim dependents?

No. AGI is based on your income and above-the-line deductions only. Claiming dependents does not change your AGI. However, dependents can affect which credits you may have access to for, and many credits have AGI limits, so your AGI is still important to know.

Why do tax forms ask for my AGI from last year?

Some forms, such as the FAFSA for student financial aid or certain state tax forms, ask for last year's AGI as a way to verify your identity and income level. You can find your prior-year AGI on your previous year's tax return, line 11, or on your IRS tax transcript if you need to verify it.