Learn About Common Tax Deductions You Can Claim

Overview of Tax Deductions and How They Work

A tax deduction reduces the amount of income that is subject to federal income tax. When you claim a deduction, you're telling the IRS that certain expenses should be subtracted from your total income before your tax is calculated. For example, if you earned $50,000 in income and had $12,000 in deductions, you would only pay taxes on $38,000 instead of the full $50,000.

The Internal Revenue Service (IRS) allows two main approaches to deductions: the standard deduction or itemized deductions. Most taxpayers use the standard deduction, which is a fixed dollar amount that varies based on your filing status, age, and whether you are blind. For the 2024 tax year, the standard deduction ranges from $14,600 for single filers to $29,200 for married couples filing jointly. However, if your total itemized deductions exceed this standard amount, you may benefit from listing them separately.

Tax deductions differ from tax credits. While a deduction reduces your taxable income, a credit directly reduces the amount of tax you owe. A $1,000 deduction might save you $200-$370 in taxes depending on your tax bracket, but a $1,000 credit saves you exactly $1,000. Understanding this difference helps you evaluate which tax benefits matter most to your situation.

Deductions have been a part of the U.S. tax system for over a century. The Tax Cuts and Jobs Act of 2017 significantly changed which deductions are available and how they work. For instance, the act nearly doubled the standard deduction but eliminated or limited many itemized deductions. Knowing what changed helps you understand current rules.

Practical Takeaway: Start by determining whether the standard deduction or itemized deductions will give you a larger total. If your potential itemized deductions (like mortgage interest or charitable donations) don't exceed the standard deduction for your filing status, using the standard deduction is simpler and usually better.

Common Itemized Deductions You May Consider

Itemized deductions allow you to list specific expenses rather than taking the standard deduction. The most common itemized deductions include mortgage interest, state and local taxes, charitable contributions, and medical expenses. However, not all of these are available without limits or restrictions.

Mortgage interest is one of the largest itemized deductions for homeowners. You can deduct interest paid on mortgages for up to $750,000 of the loan principal (or $1 million for mortgages taken out before December 15, 2017). This applies to both primary residences and second homes. However, you can only deduct interest, not principal payments. Points paid to obtain a mortgage may also be deductible, though the rules vary depending on whether the points were paid upfront or rolled into the loan.

State and local taxes (SALT) present a more complex situation since the 2017 tax law changes. You can deduct state and local income taxes, property taxes, or state and local sales taxes—but only up to a combined total of $10,000 per year. This cap applies regardless of your filing status. For high-income earners or those in states with high tax rates, this limitation significantly impacts their deductions.

Charitable contributions to organizations recognized by the IRS can be deducted if you itemize. This includes donations to religious organizations, nonprofits, educational institutions, and political campaigns. The IRS allows you to deduct the fair market value of donated items—clothing, household goods, vehicles—not just cash donations. However, you need documentation. For donations over $250, you must have a written acknowledgment from the charity. For vehicle donations, you typically can only deduct the sale price if the charity sells it, not the original purchase price.

Medical and dental expenses can be deducted, but only if they exceed 7.5% of your adjusted gross income (AGI). For someone with an AGI of $75,000, only medical expenses above $5,625 would be deductible. This high threshold means many people cannot benefit from this deduction. Covered expenses include doctor and dentist visits, prescription medications, insulin, hearing aids, eyeglasses, and health insurance premiums for self-employed individuals.

Practical Takeaway: Track your mortgage interest statements, charitable donation receipts, and medical expense documentation throughout the year. Use a spreadsheet or dedicated folder to organize these records. Before April 15th, add them up to compare against the standard deduction for your filing status.

Business and Self-Employment Deductions

If you are self-employed or operate a small business, you may deduct ordinary and necessary business expenses. These are costs directly related to running your business that are both common in your industry and helpful to your business operations. This category of deductions is separate from itemized deductions and is available to all business owners, regardless of whether they use the standard deduction or itemize.

Home office deductions allow you to deduct a portion of your home expenses if you use part of your home exclusively for business. You can calculate this using either the simplified method (multiplying your home office square footage by $5 per square foot, up to 300 square feet) or the actual expense method. With the actual expense method, you track the percentage of your home used for business and deduct that percentage of mortgage interest or rent, utilities, insurance, repairs, and depreciation. For example, if your home office is 10% of your home's total square footage and your annual utilities total $2,000, you could deduct $200.

Vehicle expenses present two deduction options: the standard mileage rate or actual expenses. For 2024, the standard mileage rate for business travel is 67 cents per mile. You simply multiply your business miles driven by this rate. The actual expense method requires tracking all costs related to your vehicle—fuel, maintenance, insurance, depreciation, lease payments—and calculating what percentage applies to business use. The mileage method is usually simpler unless you have a commercial vehicle or high maintenance costs.

Equipment and supplies needed for your business are deductible. This includes computers, software, tools, office furniture, and materials. Items costing less than $2,500 can usually be deducted in the year purchased. More expensive items may need to be depreciated over several years through a process called Section 179 expensing or bonus depreciation, which allows you to deduct larger equipment purchases more quickly.

Professional services and memberships are deductible if they are necessary for your business. This includes accounting and legal fees, dues to professional associations, subscriptions to industry publications, and training courses related to your business. Health insurance premiums and retirement plan contributions for self-employed individuals are also deductible, though they are taken as adjustments to income rather than itemized deductions.

Practical Takeaway: Create separate bank accounts and credit cards for your business to make expense tracking easier at tax time. Keep receipts and mileage logs throughout the year. Consider using accounting software designed for small businesses to categorize expenses automatically.

Education-Related Tax Benefits

The tax system offers several ways to reduce your tax burden related to education expenses, though not all take the form of traditional deductions. These benefits recognize that education involves significant costs and may reduce economic burden for students and parents.

The American Opportunity Tax Credit provides up to $2,500 per student per year for undergraduate education expenses in the first four years of higher education. This includes tuition, fees, and course materials like textbooks. Unlike deductions, credits directly reduce the tax owed. The American Opportunity Credit is partially refundable, meaning you may receive up to $1,000 even if you owe no tax. However, there are income limits: the credit begins to phase out at $80,000 for single filers and $160,000 for married couples filing jointly.

The Lifetime Learning Credit offers up to $2,000 per tax return (not per student) for undergraduate, graduate, and professional degree programs, as well as courses taken to acquire new skills. Unlike the American Opportunity Credit, there is no limit on the number of years you can claim it, but you can only claim one education credit per student per year. The income phase-out begins at $80,000 for single filers and $160,000 for married couples.

Student loan interest deduction allows you to deduct up to $2,500 in student loan interest paid during the