What Are Tax Deductions and How Do They Work? 📋

Deductions are expenses you can subtract from your income to reduce the amount of income that's subject to federal income tax. They're one of the most straightforward ways to lower your tax bill—but understanding which deductions you qualify for requires knowing the rules and your own situation.

The Basic Mechanics

When you file taxes, you report your income, then you subtract deductions. That leaves your taxable income—the number the IRS actually taxes. The lower your taxable income, the less tax you owe.

Think of it this way: if you earned $60,000 and claimed $10,000 in deductions, your taxable income would be $50,000, not $60,000.

Two Paths: Standard or Itemized

You have a choice each year about how to claim deductions:

Standard deduction: A fixed dollar amount set by the IRS each year. You don't need to prove anything—you just claim it. For the 2024 tax year, standard deduction amounts vary based on filing status and age.

Itemized deductions: You add up qualifying expenses (mortgage interest, property taxes, charitable donations, medical costs, and others) and deduct that total instead. You only itemize if your total exceeds the standard deduction.

Most people use the standard deduction because it's simpler and often larger. But if you have significant deductible expenses—such as high medical bills or substantial charitable giving—itemizing may save you more.

What Qualifies as a Deduction? 💰

Common deductible expenses include:

• Mortgage interest (not principal)
• State and local taxes (property, income, or sales tax—up to a limit)
• Charitable contributions
• Unreimbursed medical and dental expenses (above a certain threshold of your income)
• Student loan interest
• Business expenses (if self-employed)
• Educator expenses (if you're a teacher)
• IRA contributions (depending on your income and coverage by an employer plan)

Not everything is deductible. Groceries, gas, clothing, and most day-to-day expenses don't qualify. The IRS publishes detailed rules about what does.

Variables That Change Everything

Your ability to use certain deductions depends on several factors:

Filing status: Your tax filing status (single, married filing jointly, head of household) affects which deductions you can claim and often the amount.

Income level: Some deductions phase out or disappear as your income rises. High-income earners may lose eligibility for certain breaks entirely.

Age: Seniors age 65 and older get a higher standard deduction, which is a significant advantage.

Type of income: W-2 employees, self-employed people, and investors face different deduction rules.

State and local tax limits: Federal law caps state and local tax deductions at $10,000 annually for most filers.

Itemization threshold: You can only benefit from itemizing if your eligible expenses exceed the standard deduction for your filing status.

Why This Matters for Seniors

Many older adults benefit from a higher standard deduction due to age, which can eliminate the need to track and prove individual deductions. However, if you have:

• Significant medical expenses
• Substantial charitable giving
• High mortgage interest
• Large property tax bills

…itemizing might yield a bigger deduction than taking the standard amount.

Keeping good records of deductible expenses throughout the year makes tax time clearer and helps you decide which approach works best.

The Key Takeaway

Deductions reduce your taxable income, which directly lowers your tax bill. But whether a deduction applies to you, how much it's worth, and whether you should itemize or take the standard deduction all depend on your personal financial profile—including income, expenses, age, and filing status. A tax professional can help you evaluate your specific circumstances and ensure you're using every deduction you qualify for.