I'm a Tax Pro. These Tax Breaks Confuse My Clients Every Year
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Do tax credits or deductions really save you money on your tax bill or give you a bigger refund? What about tax exemptions and exclusions? It's important to know what's most beneficial to claim on your tax return, but the tax code and jargon don't make that easy.

As an IRS-enrolled agent, I'm here to break down what it all means for you this tax season so you can confidently know what really boosts your refund or lowers your tax bill. Here's a breakdown of how these common tax terms work regarding your taxes and how to keep more of your hard-earned money.

Read more: Tax Season 2025 Cheat Sheet: Make Filing Your Taxes Simple With This Tool

What is the difference between tax credits and deductions?

These two tax terms are probably the ones my clients confuse most often. Think of a tax credit as a gift card applied to your tax bill at checkout and a tax deduction as a discount on your taxable income. Both are valuable but credits tend to be far more impactful.

Let's look at an example to help explain.

  • Say you're a single filer who earned $50,000 in 2024 without any deductions or credits. Your taxable income would be $50,000, so you'd owe $6,059 in taxes.

  • A $5,000 deduction would reduce your taxable income to $45,000, so you'd owe $5,171 in taxes.

  • If you had no deductions but qualified for a $5,000 tax credit, your taxable income would be $50,000. But you would subtract the $5,000 credit from your $6,059 tax bill, so you'd only owe $1,059 in taxes.

I've had many clients confuse the two, particularly the mortgage interest deduction. Some clients bought a home, assuming the deduction would reduce their taxes dollar-for-dollar. In reality, however, you should calculate how much a deduction will save you by multiplying the deduction by your effective tax rate.

For instance, if you pay $20,000 in mortgage interest during the year and have an effective tax rate of 25%, this deduction will save you about $5,000 (20,000 x 0.25) on taxes. If it were a tax credit, you'd save $20,000.

Tax credits

Many tax credits are intentionally targeted to help specific groups of people or to incentivize certain types of behavior. Refundable credits can be even more valuable because they reduce your tax amount to less than zero.

It's important to note here that even if you don't qualify for refundable tax credits, but your tax liability is reduced to $0, the IRS will still refund whatever money you paid over the year. Some common tax credits include those for child care, education, retirement savings contributions and home improvements.