By any measure, the tax code is huge. It is over 2,000 pages long, and even longer with footnotes.1

And almost weekly, the Internal Revenue Service publishes a 10- to 50-page bulletin about various aspects of the tax code.2
 

Fortunately, it’s not necessary to wade through these massive libraries to get a basic understanding of how income taxes work. Knowing a few key concepts may provide a solid foundation.
 

One of the key concepts is marginal income tax brackets.
 

Taxpayers pay the tax rate in a given bracket only for that portion of their overall income that falls within that bracket’s range.
 

Tax Works
Seeing how marginal income tax brackets work is helpful because it shows the progressive nature of income taxes. It also helps you visualize how your total tax rate can be calculated. But remember, this material is not intended as tax or legal advice. Please consult a tax professional for specific information regarding your individual situation.
 

How Federal Income Tax Brackets Work
Say a married couple, filing jointly for the 2025 tax year, had a taxable income of $210,000. Each dollar over $206,700 – or $3,300 – would fall into the 24% federal income tax bracket. However, the couple's total federal tax would be $36,094 – about 17.2% of their adjusted gross income.
 

This is a hypothetical example used for illustrative purposes only. It assumes no tax credits apply.
 

2025 Federal Income Tax Brackets
Your federal income tax bracket is determined by two factors: your total income and your tax-filing classification.
 

For the 2025 tax year, there are seven tax brackets for ordinary income – ranging from 10% to 37% – and four classifications: single, married filing jointly, married filing separately, and head of household.3
 

1. House.gov, 2025

2. IRS.gov, 2025

3. IRS.gov, 2025
 

The content is developed from sources believed to be providing accurate information. The information in this material is not intended as tax or legal advice. It may not be used for the purpose of avoiding any federal tax penalties. Please consult legal or tax professionals for specific information regarding your individual situation. This material was developed and produced by FMG Suite to provide information on a topic that may be of interest. FMG Suite is not affiliated with the named broker-dealer, state- or SEC-registered investment advisory firm. The opinions expressed and material provided are for general information, and should not be considered a solicitation for the purchase or sale of any security. Copyright FMG Suite