When it comes to taxes, every dollar counts. And one of the smartest ways to reduce your tax bill is by taking advantage of deductions—legitimate expenses that reduce your taxable income.
But many Americans leave money on the table simply because they don’t know what they can deduct. Whether you're a full-time employee, freelancer, small business owner, or retiree, here are the most valuable tax deductions you should know about—and use.
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What Is a Tax Deduction?
A tax deduction reduces the amount of your income that is subject to federal income tax. For example, if you earned $60,000 and qualify for $10,000 in deductions, you only pay income tax on $50,000.
Unlike tax credits (which reduce your tax bill directly), deductions lower your taxable income, which could also lower your tax bracket.
1. Standard Deduction (or Itemized Deductions)
In 2025, the standard deduction amounts are:
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$14,600 for single filers
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$29,200 for married couples filing jointly
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$21,900 for heads of household
If your itemized deductions exceed these amounts, you can itemize instead.
2. Mortgage Interest
Homeowners can deduct mortgage interest paid on up to $750,000 of home loan debt. This is one of the largest deductions for many American families and can significantly reduce your taxable income.
3. State and Local Taxes (SALT)
You can deduct up to $10,000 in combined property taxes, state income taxes, or sales taxes. Choose whichever benefits you more (income tax or sales tax), but not both.
4. Charitable Donations
Cash and non-cash donations to qualified charities are deductible. Be sure to:
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Keep receipts or bank records
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Get written acknowledgment for donations over $250
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Use fair market value for donated items
5. Medical Expenses
If your unreimbursed medical expenses exceed 7.5% of your adjusted gross income (AGI), the amount over that threshold is deductible.
Eligible expenses include:
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Doctor and hospital bills
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Prescription drugs
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Certain dental and vision costs
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Long-term care services
6. Student Loan Interest
You may deduct up to $2,500 in student loan interest per year, even if you don’t itemize. The deduction phases out for higher-income earners.
7. Retirement Contributions
Contributions to:
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Traditional IRAs (up to $7,000 or $8,000 if over 50 in 2025)
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401(k) plans (up to $23,000 in 2025; $30,500 for those 50+)
These lower your taxable income now (Roth contributions are not deductible but grow tax-free).
8. Health Savings Account (HSA) Contributions
If you have a high-deductible health plan, you can deduct:
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Up to $4,150 for individuals
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Up to $8,300 for families
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Extra $1,000 if you're over 55
HSA contributions are triple tax-advantaged—deductible, grow tax-free, and can be used tax-free for medical expenses.
9. Self-Employment Deductions
Freelancers, gig workers, and small business owners may deduct:
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Home office expenses
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Business supplies and equipment
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Mileage and travel
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50% of self-employment tax
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Health insurance premiums
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Internet and phone used for work
10. Educator Expenses
Teachers (K–12) can deduct up to $300 per year (or $600 if married to another educator) for classroom supplies and materials—even if they don't itemize.
Bonus: Other Lesser-Known Deductions
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Job hunting expenses (if related to your current field)
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Jury duty pay turned over to your employer
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Union dues
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Moving expenses (for military)
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Losses from federally declared disasters
The U.S. tax code may be complicated, but knowing your eligible deductions can help you save hundreds—if not thousands—every year. Whether you're filing taxes yourself or using a professional, take the time to understand what you qualify for.
Don’t pay more than you owe—reduce your tax burden legally and smartly.
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