Tax year and top filing flags

Use the top boxes only when the Form 1040 PDF asks for a tax year or a special filing flag such as deceased taxpayer, spouse, or qualifying combat zone information.

Do not invent a top-of-form entry. Use these fields only when your filing situation or IRS instructions call for them.

Taxpayer and spouse names and SSNs

Enter the taxpayer name and Social Security number, and enter spouse name and SSN when the filing status or return requires spouse information.

Names and SSNs should match Social Security records and the filing status you choose.

Home address and foreign address

Enter the mailing address, apartment number when applicable, city, state, ZIP code, and foreign address fields only if the address is outside the United States.

Use the address where IRS notices should reach you, and keep foreign country/province/postal fields blank unless they apply.

Main home and Presidential Election Campaign

Answer the main-home question and the Presidential Election Campaign checkboxes only as the official form asks.

The campaign checkbox does not change your tax or refund, but it should still reflect your choice.

Filing status

Select one filing status: single, married filing jointly, married filing separately, head of household, or qualifying surviving spouse, then complete any related name field requested by the form.

Filing status affects deductions, tax, and eligibility for credits. Use IRS instructions or tax software if unsure.

Filing status detail fields

Use the spouse, nonresident alien, dual-status alien, separated, or qualifying child name fields only when they apply to the filing status you selected.

These are conditional fields. If the situation does not apply, leave the related field blank.

Digital assets question

Answer the digital assets yes/no question for the tax year using the current IRS instructions.

Do not skip this question. It is a required yes/no item on the return.

Dependents table

Enter each dependent name, Social Security number, relationship, residency/student/disability answers, and credit checkbox only when you are claiming that dependent.

If you have more dependents than the table allows, follow the IRS instructions for additional dependents.

Lines 1a-1z - wages and earned income

Report wages, household employee wages, tips, Medicaid waiver payments, dependent care benefits, employer adoption benefits, Form 8919 wages, other earned income, combat pay election, and the line 1z total as the form requests.

Use wage and income documents such as W-2s and related forms. The walkthrough notes that some income may be reported on one line and adjusted elsewhere instead of ignored.

Lines 2-3 - interest and dividends

Enter tax-exempt interest, taxable interest, qualified dividends, ordinary dividends, and the child-dividend checkboxes where they apply.

The walkthrough points out that qualified dividends are a subset of ordinary dividends, not a separate amount to add on top.

Lines 4-6 - IRA, pensions, annuities, and Social Security

Enter gross distribution amounts and taxable amounts for IRA distributions, pensions, annuities, and Social Security benefits, plus related checkboxes and explanation fields when they apply.

Gross and taxable amounts can differ. Use the IRS worksheets, related forms, or tax software instead of guessing taxable amounts.

Lines 7-11a - capital gain, Schedule 1, total income, adjustments, and AGI

Enter capital gain or loss, Schedule 1 additional income, total income, Schedule 1 adjustments, and adjusted gross income as the form and schedules calculate them.

Schedule 1 has both additional income and adjustments to income. Do not combine them into the wrong 1040 line.

Common question: can I type only the final total and ignore schedules? If a line says Schedule 1, Schedule D, or another form applies, prepare and attach the required schedule rather than only typing a final number.

Lines 11b-15 - deductions and taxable income

Carry adjusted gross income to page 2, answer the standard deduction checkboxes, enter deductions, qualified business income deduction, total deductions, and taxable income.

Use the standard deduction or itemized deductions according to IRS instructions. This guide shows where the fields are, not which deduction is best.

Lines 16-24 - tax, credits, and total tax

Enter tax, amounts from Schedules 2 and 3, child and dependent credits, other taxes, and total tax on the lines shown.

Several lines depend on schedules or worksheets. Follow the official instructions for calculations before entering final amounts.

Lines 25-33 - withholding, estimated payments, refundable credits, and total payments

Enter withholding from Forms W-2 and 1099, estimated tax payments, refundable credits, Schedule 3 payments, and total payments.

Use payer forms and payment records. If a credit line does not apply, leave it blank rather than entering an unsupported number.

Lines 34-36 - refund and direct deposit

Enter refund amount, amount to be applied to estimated tax, routing number, account type, account number, and any Form 8888 checkbox when applicable.

Bank routing and account numbers are sensitive. Check them carefully before filing because a typo can delay or misdirect a refund.

Lines 37-38 - amount you owe and estimated tax penalty

Enter the amount owed and any estimated tax penalty only after the return calculations show those amounts.

Use IRS payment instructions or tax software for payment method and penalty calculation decisions.

Third party designee

Choose whether the IRS may discuss this return with a third party, then enter designee name, phone number, and PIN only if you choose yes.

This authorizes discussion of the return with the named person. Leave detail fields blank when you select no.

Sign here - taxpayer, spouse, phone, and email

Sign and date the return, and include spouse signature/date when filing jointly. Add phone number and email in the signature area if requested.

Unsigned returns can cause filing problems. Review the whole PDF and required attachments before signing or submitting.

Paid preparer use only

This area is for a paid preparer to complete when someone prepares the return for compensation.

If you prepared your own return, do not fill the paid preparer fields as if you were a tax professional.