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A look at which deductions you can take
The “line” is your adjusted gross income, with above-the-line deductions coming out before you calculate your AGI and below-the-line deductions coming after
Above-the-line deductions, on Schedule 1, are available to everyone that qualifies
Below-the-line deductions include itemized deductions (which most people don’t qualify for) and the qualified business interest deduction
The result after taking above-the-line deductions is your AGI, which determines your eligibility for itemized deductions
There are two main types of deductions: above-the-line deductions and below-the-line deductions. They’re all available to people who use Form 1040 — the main federal tax form. The main differences are when in the tax-filing process you claim them and who can qualify to claim them.
You claim above-the-line deductions first. They directly reduce your gross income before any other taxes or deductions have been applied. The IRS does not use the term above-the-line deduction on official tax forms and usually just refers to them as adjustments to income. As long as you meet an individual deduction’s eligibility rules, you can claim it.
Then you can claim the standard deduction, which is a set amount that doesn’t change regardless of your financial situation. Individuals with certain types of personal expenses can choose to deduct the exact value of those expenses instead of the standard deduction. These are called itemized deductions and are what people usually mean when they refer to below-the-line deductions.
Most itemized deductions are linked to spending more than a certain percentage of your income, and you need to have a certain amount of total itemized deductions in order to claim any of them.
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Deductions reduce your taxable income. The federal income tax you pay during the year is calculated by applying the federal tax brackets to your taxable income, not your gross income (total income for the year). Taxable income is just your gross income minus the value of all your deductions.
After taking your above-the-line deductions, you’ll get your adjusted gross income (AGI), which is the “line” used to differentiate deductions. Once you find your AGI, you can see if you qualify for below-the-line deductions.
At this point, everyone can take the standard deduction, which is determined by your filing status. Even though you take it after finding your AGI, the standard deduction doesn’t change based on your AGI and it isn’t usually referred to in terms of being above or below the line.
If you have certain kinds of personal expenses, you can choose to deduct their exact value instead of the standard deduction. These are called itemized deductions and are what people focus on when talking about below-the-line deductions.
Very few people qualify to itemize deductions after the 2017 tax reform (Tax Cuts and Jobs Act). Most itemized deductions require you to have spent more than a certain percentage of your AGI on eligible expenses. Your total itemized deductions also need to be more than the standard deduction in order for you to claim any of them. Someone who incurred significant expenses in one type of itemizable deduction still may not be able to itemize. This is a big difference from the above-the-line deductions.
Finally, there’s the QBI deduction — the only below-the-line deduction available to anyone who meets its individual requirements, regardless of whether or not they itemize. We’ll explain that one later.
Learn more about the tax filing process with our complete guide to filing taxes.
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When you fill out your tax return, the first deductions you can take are above-the-line deductions. These deductions are available to all taxpayers, but each has its own requirements that you must meet.
Above-the-line deductions are also called adjustments to income. They deal with a handful of specific, personal expenses that you may have incurred during the year. Each deduction you claim reduces how much of your income from the year is subject to income tax. After making those reductions, you arrive at your AGI (adjusted gross income).
You can claim above-the-line deductions by completing Schedule 1 and attaching it to your tax return. Not all above-the-line deductions have an official title with the word “deduction” in it. People simply reference the deduction for a certain expense.
Above-the-line deductions are available for 12 main types of expenses:
There are also less-common above-the-line deductions you can write in when you complete Schedule 1:
After you take any above-the-line deductions and find your AGI, you can claim below-the-line deductions. First, you can take the standard deduction, which is technically a below-the-line deduction because you take it after finding your AGI, but people rarely talk about the standard deduction by saying it’s above or below the line. Everyone can claim the standard deduction. It’s a set amount based primarily on your filing status.
When people talk about below-the-line deductions, they’re usually talking about itemized deductions. If you spend enough on certain types of expenses, such that the total you spent exceeds your standard deduction, you can choose to itemize deductions instead of taking the standard deduction. Even if you have the types of expenses that are eligible to itemize, you shouldn’t actually itemize unless you have so much that the combined value is more than the standard deduction.
There is one other below-the-line deduction: the qualified business interest deduction, also called the QBI deduction. You can claim the QBI deduction whether or not you itemized deductions. You just need to meet its requirements, which include having certain kinds of business or investment income.
Everyone can claim the standard deduction (with very few exceptions), and your standard deduction is based on your filing status. If you’re blind or 65 or older, you can also claim an additional standard deduction, the amount of which also varies based on your filing status.
Below are the standard deduction amounts for 2020 taxes, which you file in early 2021, and for 2019 taxes, which you file in early 2020.
|Filing status||Standard deduction amount|
|Married filing jointly||$24,800|
|Married filing separately||$12,400|
|Head of household||$18,650|
|Filing status||Standard deduction amount|
|Married filing jointly||$24,400|
|Married filing separately||$12,200|
|Head of household||$18,350|
You can claim itemized deductions by filling out Schedule A and attaching it to your Form 1040. There aren’t many expenses that are eligible to itemize, but the seven most common itemized deductions include the following:
There is also space to write in and deduct miscellaneous losses and payments. These are less common, with examples including gambling losses, any federal estate tax you paid on another person’s income, and casualty or theft losses from an income-producing property. The IRS instructions for Schedule A list all of the possible miscellaneous itemized deductions.
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