The marginal tax rate is the percentage of tax applied to each portion of your income that falls within a specific tax bracket. In other words, it’s the rate you pay on each additional dollar you earn. As your income increases, higher portions of your earnings are taxed at higher rates—but only those portions, not your entire income.
If you have ever looked at your taxes and felt confused, you are not alone. When you divide your total taxes by your income, the number you get often looks nothing like the tax rates reported in the news. People sometimes say that the wealthy pay too much or too little, or that the middle class is being squeezed, but the truth is more nuanced.
This article will explain how tax brackets work, how they affect both employees and business owners, and how understanding your marginal tax rate can help you make better financial decisions.
What Is a Marginal Tax Rate and How Does It Work?
Imagine your income as water filling the levels of a pyramid. Each floor represents a tax bracket, and as your income rises, the next floor fills at a higher rate.
For 2024, the U.S. federal income tax brackets are as follows:
| Tax Rate | Taxable Income Range |
|---|---|
| 10% | $0 – $11,600 |
| 12% | $11,601 – $47,150 |
| 22% | $47,151 – $100,525 |
| 24% | $100,526 – $191,950 |
| 32% | $191,951 – $243,725 |
| 35% | $243,726 – $609,350 |
| 37% | $609,351 and up |
Example 1: A Part-Time Cashier
A cashier earning $23,000 per year would pay:
- First $11,600 at 10% = $1,160
- Next $11,400 at 12% = $1,368
- Total tax = $2,528
If you divide $2,528 by $23,000, the effective tax rate is about 10.99%. Even though this person is in the 12% tax bracket, they are not paying 12% on all their income.
Example 2: A Software Developer Earning $100,000
- $11,600 × 10% = $1,160
- $35,550 × 12% = $4,266
- $52,850 × 22% = $11,627
- Total tax = $17,053
The developer’s effective tax rate is about 17%, even though their marginal rate is 22%. When someone says, “I’m in the 22% tax bracket,” they are referring to the highest rate that applies to them, not their overall average rate.
How Marginal Tax Rates Affect Small Business Owners
If you own a small business, sole proprietorship, or LLC, your business income typically passes through to your personal tax return. That means your marginal tax rate applies to your total income, including profits from your business.
In addition to federal income tax, self-employed individuals pay a self-employment tax of 15.3%, which includes 12.4% for Social Security and 2.9% for Medicare.
For example, if a business owner owes $62,000 in income tax, they still must pay self-employment tax on top of that. Higher earners may feel the weight of this, but with good recordkeeping and strategic planning, the impact can be managed.
Why Accurate Bookkeeping Matters
Every legitimate business deduction reduces taxable income. Tracking expenses, categorizing transactions correctly, and maintaining clear records can help you legally lower your tax bill.
That is where professional bookkeeping makes a difference. As your bookkeeper, I help you:
- Maintain accurate, audit-ready records
- Track deductible expenses effectively
- Understand your financial picture so you can make better business decisions
Most of my clients save more than 80 hours per year by outsourcing their bookkeeping.
Take the Next Step
A steady paycheck may feel secure, but true financial security comes from understanding how money flows through your business and how to keep more of what you earn. If you would like to talk about your business goals and see how better bookkeeping can help you manage your taxes more effectively, schedule your bookkeeping strategy call today.