IRS Roundup: 2024 Tax Brackets, 401(k) Contributions, and FSA Limits

The Internal Revenue Service, or IRS, regularly makes changes to adjust its regulations in response to inflation. But with inflation at or near 40-year highs, those changes are especially relevant for 2024.

While these limits are increasing less than they did from 2022 to 2023, employers should still note the rising cost of living. Read on to learn more about the updated IRS numbers you need to know for the coming tax year.

What Are the IRS Income Tax Brackets for 2024?

An individual (or married couple, if they choose to file jointly) falls into one of seven tax brackets based on their income, and these brackets determine how much of that income is withheld in taxes.

2024 Income Tax Brackets for Single Filers

Taxable Income	Tax Rate
Up to $11,600	10%
$11,601 — $47,150	12%
$47,151 — $100,525	22%
$100,526 — $191,950	24%
$191,951 — $243,725	32%
$243,726 — $609,350	35%
Over $609,350	37%

Last year’s changes represented increases of about 7%, much higher than usual because of record inflation. That meant even employees who didn’t get raises last year could end up in a lower tax bracket—increasing their take-home pay slightly. This year, the 5.4% increase marks a slight easing of inflation highs, but employers should remain cognizant of extra financial pressures on households recovering from the past years.

2024 Income Tax Brackets for Married Filers

Married filers have different taxable income threshold amounts from single filers. It is double that of single filers, but this chart can help you compare more easily.

Taxable Income	Tax Rate
up to $23,200	10%
$23,201 — $94,300	12%
$94,300 — $201,050	22%
$201,050 — $383,900	24%
$383,900 — $487,450	32%
$487,450 — 731,200	35%
over $731,200	37%

What Is the New 401(k) Contribution Limit in 2024?

A 401(k) is a retirement savings account many employers offer as an employee benefit. These accounts allow employees to set aside or invest pre-tax income that can be used tax-free once an employee reaches age 59.5. Many employers match employee contributions to these plans up to a certain percentage.

In tax year 2023, employees were limited to a maximum contribution of $22,500. But in 2024, the 401(k) contribution limit increases to $23,000. That means employees can set aside an additional $500 into their retirement accounts.

The jump from 2022 to 2023 was $2,000, so this $500 increase is another indicator that the IRS is reacting to lowering inflation rates. From 2021 to 2023, this limit rose $3,000 in total, marking a much higher increase than in past years.

What Is the 401(k) Contribution Catch-Up Limit in 2024?

The 401(k) catch-up contribution limit is for persons aged 50 or older to contribute extra money to their 401(k)s in order to save more quickly for retirement. In 2024, the catch-up contribution limit is $7,500, making the total contribution limit $30,500. This is unchanged from 2023.

What Is the New FSA Contribution Limit in 2024?

A flexible spending account, or FSA—also called a flexible savings arrangement—allows employees to set aside pre-tax funds for healthcare expenses or dependent care expenses.

To use the money for dependent care, the expense must be directly related to the employee’s work. For example, an employee could use FSA funds for childcare expenses during their own working hours, but not for date night.

Employees can decide how much to put into their FSA—up to a limit. In 2024, the FSA contribution limit increases from $3,050 to $3,200. Like the 401(k) limit increase, this one is lower than the previous year’s increase.

All these changes begin in tax year 2024, which means they’ll apply to taxes filed in 2025. While the updates may not affect organizational budgets directly, some will impact payroll. So, HR can communicate changes to employees to help them understand their options when setting personal financial goals. While HR professionals should not act as financial advisors, communicating information such as this may build trust in HR’s role.

To make it easier, just send your workforce this blog.

Resources for Other 2024 Compliance Questions:

Additional Resources

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