Overview
The U.S. Tax Code includes thousands of pages. But don’t worry. You don’t have to read all of them to file your return. Most people only need a handful of those forms.
Those forms tell a story about your financial life, from how much you make and your family size to the types of financial accounts you have and how you spend your income. Have you ever really looked at your return and tried to figure out where each number comes from?
It can be challenging, even for tax professionals. Still, having an idea of what each form does helps you file a complete and accurate return.
Whether you’re self-employed, earning investment income, or simply want to make sure you’re not paying more than your fair share to the IRS, the ten forms below cover the tax situations you’re most likely to encounter.
Key takeaways:
Form 1040 is the foundation of your federal income tax return, and all other forms and schedules feed into it.
Schedule 1-A is a recent addition to the tax form series and is used for new deductions related to tip income, overtime, seniors, and new car loan interest.
In addition to the core forms listed here, you may need to attach other forms and schedules, depending on your unique circumstances.
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Key Tax Forms
Form 1040 / Form 1040-SR
Form 1040, U.S. Individual Income Tax Return, is the main federal income tax form for individuals. Every other schedule and supplemental form feeds back into this one document. Form 1040-SR is a version of the same form designed specifically for taxpayers age 65 or older. It includes larger print and a built-in standard deduction chart.
Form 1040 pulls together information from your W-2s, 1099s, and any other schedules you’re required to file. It presents a summary of your total income, deductions, credits, and tax payments. Then it calculates whether you owe a balance to the IRS or are due a refund.
Schedule 1
Schedule 1, Additional Income and Adjustments to Income, is the place to report income and deductions that don’t have their own lines on Form 1040.
Part I covers additional income sources like unemployment compensation, gambling winnings, and taxable refunds of state income taxes.
Part II covers adjustments to income, also known as “above-the-line deductions.” These are deductions you can claim whether or not you itemize, including student loan interest, self-employed health insurance, and contributions to a traditional IRA.
Your total income from page 1 of Form 1040, plus your additional income and adjustments to income from Schedule 1, gives you your adjusted gross income (AGI). The IRS uses your AGI to determine whether you’re eligible for other tax benefits, so this is an important number.
Schedule 1-A
Schedule 1-A, Additional Deductions, is relatively new. The IRS created it to help taxpayers calculate several new tax deductions created under the One Big Beautiful Bill Act (OBBBA).
If you earn tips or overtime, financed a new car with final assembly in the U.S., or are over 65, you’ll want to review the Form 1040 Instructions to see if you qualify for one or more of these tax breaks.
Schedule 2
Schedule 2, Additional Taxes, covers some additional types of taxes that aren’t included on Page 2 of Form 1040. This includes the additional medicare tax for people who earn more than $250,000 ($125,000 if married filing separately), household employment taxes, and the net investment income tax, among others.
Schedule 3
Schedule 3, Additional Credits and Payments, is where you claim tax credits and tax payments that don’t appear on Form 1040.
Part I covers non-refundable credits, which can reduce your tax bill to zero, but won’t result in a refund if the credit amount is more than your total owed. It includes the foreign tax credit, the child and dependent care credit, education credits, and the adoption credit.
Part II handles other payments and refundable credits. For example, if you requested an extension of time to file your return and made an estimated payment with your request, you’ll report that payment here.
Schedule A
You’ll use Schedule A, Itemized Deductions, if you choose to itemize instead of claiming the standard deduction.
Deductible expenses for Schedule A include home mortgage interest, state and local taxes, and qualifying medical expenses that exceed 7.5% of your AGI.
Schedule A is also where you claim donations to charitable organizations. Starting with the 2026 tax year (returns filed in 2027), you can only deduct charitable contributions that exceed 0.5% of your AGI.
Schedule B
You typically only need to use Schedule B, Interest and Ordinary Dividends, if you received more than $1,500 in taxable interest or ordinary dividends. For amounts below that threshold, you just report the income on Page 1 of Form 1040.
If you file Schedule B, you list every financial institution or company that paid you interest or dividends, along with the amounts.
Schedule B also includes questions about foreign accounts and trusts. If you answer yes, you may also have to file FinCEN Form 114, Report of Foreign Bank and Financial Accounts (FBAR).
Schedule C
Schedule C, Profit or Loss From Business, is where sole proprietors, gig workers, independent contractors, and self-employed individuals report business income and expenses if they don’t file a separate tax return for the business. It’s how the IRS knows what your business earned and what it cost you to earn it.
You report gross business income, then deduct ordinary and necessary expenses like advertising, supplies, insurance, rent, and wages. The resulting profit (or loss) flows to Schedule 1 and then to Form 1040.
Schedule D
Schedule D, Capital Gains and Losses, is where you report the sale of capital assets like stocks, bonds, mutual funds, real estate, and other property.
Part I is for short-term sales (assets you owned for one year or less). These are taxed at your ordinary income tax rate.
Part II is for long-term sales (assets you owned longer than one year). These qualify for lower capital gains tax rates, which range from 0% to 20%, depending on your income.
You can use capital losses to offset capital gains, and use up to $3,000 in net losses to offset ordinary income, such as wages or business income, each year. You can carry forward any unused losses to future tax years.
Schedule E
You’ll need Schedule E, Supplemental Income and Loss, if you earn money from rental property, royalties, a passthrough business like a limited liability company, partnership, or S corporation, or a trust or estate.
Part I is for rental property and royalties. You list rental income and expenses like mortgage interest, property taxes, insurance, repairs, and depreciation.
Parts II through IV cover your share of income and losses passed through from a business, estate, or trust. Typically, you’ll complete this section using a Schedule K-1 received from the entity.
Simplifying Tax Filing Season
These ten forms cover the core needs of most individual taxpayers, but everyone’s situation is different.
If you’re not sure which ones apply to you, consider working with a tax professional who can review your full financial picture or use tax software that walks you through interview-style questions to identify the right forms based on your specific circumstances. Either way, going into tax season with a basic understanding of the forms you need means you’re already ahead.
Level up you tax filing game with TaxSlayer
File your taxes with TaxSlayer and get your maximum refund.
by your friends at The Daily Navigator
