Introduction
Form 1040 has no line labelled "net income." That's the snag. The right line depends on what you mean by the term.
Here's the short answer:
- Total income: Form 1040, line 9
- Net business profit: Schedule C, line 31
- Take-home pay: your payslip (Form 1040 does not show it)
This guide separates total income, adjusted gross income (AGI), taxable income, business profit and take-home pay. It also covers what Australian-based U.S. taxpayers should watch for. Line numbers changed between 2024 and 2025, so always check the form for your tax year.
Key Takeaways
- Form 1040 has no single line called "net income."
- Line 9 is total income; AGI is on line 11a/11b; taxable income is on line 15.
- Sole-proprietor net profit is calculated on Schedule C, line 31.
- Take-home pay appears on a payslip, never on Form 1040.
Where to Find Net Income on Form 1040
The short answer
If "net income" means your overall income subtotal, the closest figure is total income on line 9. The form doesn't call it net income, so confirm the label and number against the IRS form and instructions for your tax year.
What the main income lines show
Line 9 adds up several entries (2025 form):
- Line 1z: wages and other earnings from lines 1a to 1h
- Line 2b: taxable interest
- Line 3b: ordinary dividends
- Line 4b: taxable IRA distributions
- Line 5b: taxable pensions and annuities
- Line 6b: taxable Social Security benefits
- Line 7a: capital gain or loss (line 7 in 2024)
- Line 8: additional income from Schedule 1
Some items show a gross amount on the "a" line and a taxable amount on the "b" line. Only the taxable amount feeds line 9.
When "net income" means business profit
Sole proprietors and eligible single-member LLC owners work out net profit on Schedule C. Business income less allowable expenses is reported on line 31.
That figure flows from Schedule C line 31 to Schedule 1 line 3, then into Schedule 1's total, Form 1040 line 8 and finally line 9.
Gross receipts on Schedule C line 1 are not profit. Returns, cost of goods sold and expenses come off first, and losses may be limited.
When "net income" means take-home pay
The IRS defines net pay as pay received after taxes and other deductions. Form 1040 has no such field. Line 1a uses W-2 box 1, which is a tax-reporting figure, not the amount hitting your bank account.
Payroll withholding, retirement contributions and insurance premiums all sit on your payslip. That's where take-home pay lives.
Match the figure to the reason it is needed
| If you need... | Use |
|---|---|
| The Form 1040 income subtotal | Line 9, total income |
| Adjusted gross income | Line 11a/11b |
| Amount used for the tax calculation | Line 15, taxable income |
| Business profitability | Schedule C, line 31 |
| Take-home pay | Payslip |
Don't swap these. Lenders, benefit agencies and budgeting tools each ask for a specific figure, and line 9, AGI, taxable income, refund, balance due and payslip net pay are all different numbers.
How Do Total Income, AGI, Taxable Income and Net Income Relate?
Form 1040 income flow
The sequence (2025 form) runs in order:
- Income entries add up to total income, line 9
- Adjustments (Schedule 1 line 26) go on line 10
- Line 9 minus line 10 gives AGI, line 11a, repeated at 11b
- Deductions are totalled on line 14 (12e + 13a + 13b)
- Line 11b minus line 14 gives taxable income, line 15, never below zero
The 2024 form numbered these differently: AGI was line 11, and deductions sat on lines 12 and 13. Not all income is taxed at one stage. Each step narrows the figure.
How the key figures compare
- Total income: the subtotal before above-the-line adjustments
- AGI: total income after eligible adjustments, as IRS guidance describes it
- Taxable income: what remains after standard or itemised deductions and the QBI deduction
"Net income" is context-dependent. It isn't automatically any one of these.
Gross versus taxable amounts
Retirement distributions, pensions, annuities and Social Security show total and taxable amounts on separate lines (4a/4b, 5a/5b, 6a/6b). A fully taxable IRA generally appears only on 4b. A partly taxable pension shows total payments on 5a and the taxable part on 5b.
Add the taxable amount to total income, not both. The Form 1040 instructions explain the exceptions.
Business income versus employee income
W-2 wages arrive via box 1 and go to line 1a. A sole proprietor's income arrives as Schedule C net profit. Gross receipts are not net business income.
Other income comes through other schedules:
- Rental, royalty, partnership and S corporation income: Schedule E, then Schedule 1 line 5
- Capital gains: Form 8949 and Schedule D, then line 7a
- K-1 items: follow the item-specific K-1 instructions
What these figures do not mean
Line 9 is not tax owed, total tax, a refund, a balance due or cash received. Borrowed loan principal isn't gross income because you must repay it, though cancelled debt may become income.
The IRS also says gifts and personal reimbursements, such as a roommate repaying rent, aren't taxable merely because they arrived through a payment app. Check current IRS guidance for exceptions.
Which Documents and Schedules Help You Find the Right Figure?
Match source documents to Form 1040 entries
| Document | Where it goes (2025) |
|---|---|
| W-2 | Box 1 to line 1a, included in 1z |
| 1099-INT | Taxable interest to line 2b; tax-exempt to 2a |
| 1099-DIV | Ordinary dividends to 3b; qualified to 3a |
| 1099-R | IRA to 4a/4b; pension or annuity to 5a/5b |
| 1099-B | Form 8949, Schedule D, then line 7a |
| K-1 | Schedule E Part II, Schedule 1, then line 8 |
A document amount isn't automatically taxable income. Retirement distributions and brokerage proceeds need their own calculations first.
Reconcile the return before relying on the number
Compare Form 1040 against:
- W-2s and 1099s
- K-1s and brokerage statements
- Foreign income records
- Business books
Then check for issues. An IRS tax tip says to request missing or corrected documents from the issuer. If a later W-2 or 1099-R differs from what you filed, Form 1040-X applies.
The Wage and Income Transcript, available through your IRS Individual Online Account or Form 4506-T, lists issuer data. It can be incomplete before issuers file.
The IRS also matches third-party reports to returns, and a mismatch can trigger a CP2000, which is a proposal rather than a bill.
Use professional help for complex or cross-border returns
Multiple income sources, self-employment, foreign income, currency conversion, or doubt over Form 1040 versus 1040-NR make line tracing harder.
VJM Global prepares Form 1040 and 1040-NR returns and supports cross-border tax compliance, with pricing quoted by entity structure and scope of service.
Common Mistakes When Looking for Net Income on Form 1040
Using the wrong definition of net income
Labeling line 9, AGI, taxable income, business profit or take-home pay as "net income" leads to the wrong figure on an application. Ask what the requester actually wants, then pick the line.
Reporting gross amounts or double-counting income
Typical errors include:
- Treating gross business receipts as net profit
- Entering both gross and taxable retirement amounts
- Reporting one payment through multiple forms
- Omitting a W-2, 1099 or K-1
Inaccurate wages, dividends and interest, and filing before all documents arrive, rank among the IRS common return mistakes. Topic 303 also covers whether income sits on the correct lines.
Using an outdated form or incorrect schedule
Lines moved between years: 2024's lines 7, 11, 12 and 13 became 7a, 11a/11b, 12e and 13a/13b in 2025. Use the IRS form and instructions for your return year, not an old screenshot. Complex self-employment, investment, foreign or amended-return situations merit a qualified tax professional.
Form 1040 Considerations for Taxpayers in Australia
Determine whether Form 1040 is the correct U.S. return
Living in Australia doesn't decide your U.S. return. Citizenship, resident-alien status and your facts do. U.S. citizens and resident aliens abroad report worldwide income.
Resident-alien status generally follows the green-card or substantial presence test: 31 days in the current year and 183 weighted days over three years, subject to exceptions.
Form 1040-NR is the nonresident return, not an expatriate version of Form 1040. Dual-status rules can also affect which return applies.
Report Australian and other foreign income correctly
- Report in U.S. dollars, generally at the exchange rate when income is received, paid or accrued
- The IRS publishes yearly average rates and generally accepts consistently used posted rates
- The Foreign Earned Income Exclusion (Form 2555) is up to US$130,000 for 2025, with earned-income limits
- The Foreign Tax Credit (Form 1116) offsets U.S. tax, but not on excluded income
- Filing thresholds still count excluded foreign income toward the need to file
Qualifying taxpayers abroad get an automatic two-month extension to file and pay, though interest runs from the regular due date.
Foreign-asset reporting is separate. FBAR applies when foreign accounts exceed US$10,000 at any time in the year. Form 8938 thresholds start at US$200,000 at year end for qualifying unmarried individuals abroad.
Avoid confusing U.S. and Australian tax figures
An Australian income statement reports gross salary and PAYG withholding. Australia's income year runs 1 July to 30 June, while the Form 1040 year is 1 January to 31 December. A figure called income in one system may not match line 9, AGI or taxable income in the other.
Reconcile both countries' records. Get professional advice for currency conversion, treaty questions (the U.S.-Australia treaty generally preserves U.S. taxation of citizens) and dual filing duties.
Frequently Asked Questions
What line on Form 1040 shows your total (net) income?
Line 9 generally shows total income. Form 1040 has no universal "net income" line, so don't confuse it with AGI, taxable income, business profit or take-home pay.
Where is adjusted gross income shown on Form 1040?
On the 2025 form, AGI is on line 11a and repeated at 11b. It's total income less eligible adjustments. In 2024 it was line 11.
Where do I find taxable income on Form 1040?
Line 15. It equals AGI minus deductions, and it can't fall below zero.
Is net income the same as take-home pay?
No. Take-home pay is what remains after payroll deductions and sits on your payslip. Form 1040 doesn't normally show it.
Where does self-employment net income appear on Form 1040?
Schedule C line 31 calculates net profit. It flows through Schedule 1 to Form 1040 line 8, then into line 9.
Do U.S. taxpayers living in Australia file Form 1040?
It depends on citizenship, residency and income. U.S. citizens and resident aliens generally file Form 1040, while some nonresidents file Form 1040-NR. Foreign reporting forms such as FBAR or Form 8938 may also apply.
