How to Lower Your Tax Bill: Deductions vs. Credits Explained

Updated Oct 28, 2026 2 min read By the WieHow – Home, Energy & Money Guides editorial team
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Quick answer

A tax deduction lowers the income you're taxed on, so its value depends on your tax bracket. A tax credit reduces your tax bill dollar for dollar, which usually makes it more valuable. The most common ways to lower taxes are contributing to retirement accounts and an HSA, claiming credits you qualify for and choosing between the standard and itemized deduction.

On this page
  1. Deductions vs. credits
  2. Standard or itemized deduction?
  3. Common ways to lower your taxes
  4. Avoid penalties

Tax rules change often, but the basic tools to legally reduce your taxes stay the same. This overview explains how they work; check current IRS limits and consider a tax professional for complex situations.

Deductions vs. credits

DeductionCredit
What it reducesTaxable incomeTax owed
Value of $1,000$1,000 × your tax rate (e.g. $220 at 22%)$1,000
ExamplesRetirement contributions, HSA, student loan interestChild tax credit, earned income credit, education credits

Standard or itemized deduction?

You can take the standard deduction or itemize deductions such as mortgage interest, state and local taxes (within limits) and charitable donations. Most households now take the standard deduction because it is relatively high. Itemize only if your total itemized deductions are larger.

Common ways to lower your taxes

  • Traditional 401(k) and IRA contributions reduce taxable income now.
  • HSA contributions are deductible, grow tax-free and are tax-free for medical costs.
  • Credits: child tax credit, earned income tax credit, education credits and, for some upgrades, energy-related credits that are still available.
  • Tax-loss harvesting in taxable brokerage accounts can offset gains.
  • Charitable giving, especially bunching donations into one year if you itemize.
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Avoid penalties

If you're self-employed or have significant untaxed income, make quarterly estimated payments to avoid underpayment penalties. Keep receipts and records for at least three years after filing.

Free filing help: IRS Free File and Volunteer Income Tax Assistance (VITA) programs help eligible taxpayers file for free.

Frequently asked questions

What is a refundable credit?

A refundable credit can give you money back even if it exceeds the tax you owe. Nonrefundable credits can only reduce your tax to zero.

Is a big refund good?

A big refund means you overpaid during the year. Adjusting withholding gives you more money in each paycheck instead.

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