
A Roth deferral in a 401k plan allows you to contribute a portion of your income on a pre-tax basis to a traditional 401k account, but pay taxes when you withdraw the funds in retirement.
The IRS sets annual limits on the amount you can contribute to a 401k plan, including Roth deferrals, which is $19,500 in 2022, with an additional $6,500 catch-up contribution allowed for those 50 or older.
In a 401k plan with a Roth deferral option, you contribute after-tax dollars to a separate account, which grows tax-free and can be withdrawn tax-free in retirement.
What is a Roth Deferral?
A Roth deferral is a type of retirement savings option that allows you to contribute a portion of your income to a specific retirement account, similar to a traditional 401(k) plan. You use after-tax money for Roth deferrals, which means you pay income tax on the contributions when you make them.
The most popular types of retirement plans that offer Roth deferrals are corporate 401(k) plans and Solo 401(k) plans. This option is typically offered by employer-sponsored retirement accounts, not individually owned accounts like a Roth IRA.
Contributions made to a Roth retirement account using employee deferrals are considered Roth deferrals. You get no immediate tax benefits for Roth deferrals, but since the money's already been taxed, you get tax-free withdrawals in retirement.
Here's a comparison of pre-tax and Roth deferrals:
- Pre-tax deferrals: Withdrawals in retirement are taxed based on your tax bracket and tax rates at the given time.
- Roth deferrals: Withdrawals in retirement are completely tax-free.
A Roth deferral typically refers to employee deferrals, which are classified differently than Roth IRA contributions.
Eligibility and Limits
Eligibility and limits play a crucial role in determining whether you can contribute to a Roth deferral in your 401(k).
Income limits determine eligibility, and these limits can change yearly, so it's essential to check with your employer or the IRS for the most up-to-date information.
High earners are not restricted from contributing to Roth 401(k)s, which is a significant advantage over Roth IRAs.
You can contribute up to $23,000 to a Roth 401(k) in 2024, with an additional $7,500 catch-up contribution if you're age 50 or older.
Eligibility and Limits

The eligibility and limits of a Roth 401(k) are worth understanding, as they can impact your ability to contribute and grow your retirement savings.
Income limits determine whether you're eligible to contribute to a Roth 401(k), and these limits can change yearly, so it's essential to check with your employer or the IRS for the most up-to-date information.
High earners are not restricted from contributing to Roth 401(k)s, unlike Roth IRAs, which have income limits of $161,000 if single and $240,000 if married and filing jointly.
The contribution limits for a Roth 401(k) are higher than for a Roth IRA, allowing you to put up to $23,000 into a Roth 401(k) in 2024, with an additional $7,500 catch-up contribution if you're 50 or older.
You can mix and match deferrals with a Roth 401(k), making some pre-tax contributions and some post-tax contributions, and adjust throughout the year according to your needs and plan specifications.
Can Employees Make Pretax Deferrals?

Employees can make pretax deferrals, and the annual deferral limit is $20,500 (2022).
You can contribute to a pretax account, and the plan document must allow for this type of contribution.
The annual deferral limit applies to both pretax and designated Roth contributions, and it's $20,500 (2022).
Benefits and Advantages
As you consider a Roth deferral in your 401k, it's essential to understand the benefits and advantages it offers.
One of the most significant advantages of a Roth deferral is that you can make tax-free retirement withdrawals from your contributions and earnings.
You can enjoy greater long-term growth with a Roth deferral, thanks to the ability to compound investments without paying taxes on investment gains.
This can provide compound returns over time, allowing investments to grow faster than taxable accounts.
With a Roth deferral, you have increased flexibility in accessing contributions in certain situations.
Here are the key benefits of a Roth deferral in a nutshell:
- Tax-free retirement withdrawals from contributions and earnings
- Potential for greater long-term growth through tax-free compounding
- Increased flexibility in accessing contributions in certain situations
How it Works
In a Roth 401(k) deferral, contributions are made with after-tax dollars, meaning you've already paid income tax on the money you're putting into the account.
This is a key distinction from traditional 401(k) plans, where contributions are made before taxes are deducted. Contributions to a Roth 401(k) are made with money that's already been taxed.
By contributing to a Roth 401(k) with after-tax dollars, you've already paid income tax on the money, so you won't have to pay taxes on the withdrawals in retirement.
What It Does
A Roth deferral is a smart way to save for retirement, and it works by allowing you to set aside a portion of your paycheck after taxes into a Roth 401(k) account.
You've already paid taxes on this money, so when you withdraw your contributions and earnings in retirement, you won't pay taxes again (assuming you meet eligibility requirements). This provides peace of mind and a protective measure for managing taxes during your retirement.

Here's a quick rundown of how it works:
You can start taking qualified distributions from your retirement account when you reach the age of 59½. Withdrawals from a Roth account after you reach 59½ years old are excluded from your gross income and aren’t subject to taxes.
Designated Contributions
Designated Contributions allow employees to contribute after-tax dollars to a designated Roth account, which is included in their annual income and taxed accordingly. This means employees pay income tax on these contributions upfront.
The good news is that any earnings on designated Roth contributions continue to grow tax-deferred, and they're tax-free if the employee takes a qualified distribution. To qualify, the distribution must occur at least five years after the first day of the year of the employee's first designated Roth contribution.
There are specific rules for qualified distributions: they can be made on or after the employee attains age 59½, on account of the employee's disability, or after the employee's death.
Comparison and Alternatives
So, you've learned about Roth deferral in a 401k, but now you're wondering if it's the best option for you. The answer depends on your individual financial situation and goals.
A traditional 401k allows you to deduct your contributions from your taxable income, but you'll pay taxes when you withdraw the money in retirement. In contrast, a Roth 401k allows you to contribute after-tax dollars, but the withdrawals are tax-free.
Some people may prefer the predictability of knowing their taxes will be lower in retirement with a traditional 401k. However, others may prefer the flexibility of a Roth 401k, where they can withdraw their contributions at any time tax-free.
The Roth 401k also offers a higher contribution limit, up to $20,500 in 2022, plus an additional $6,500 if you're 50 or older.
Employer and Employee Roles
In an employer-sponsored retirement account, the employer and employee play distinct roles in contributing to a Roth deferral. The employer typically offers a corporate 401k plan that allows employees to make Roth deferrals.
The employee, on the other hand, decides how much to contribute to the plan and from which paycheck. This is often done through payroll deductions, making it easy to save for retirement.
The most popular types of retirement plans that offer Roth deferrals are corporate 401k plans and Solo 401k plans.
Employee Deferral vs Deferral
Employee deferral is a type of retirement savings option that allows you to reduce your taxable income today by contributing pre-tax dollars. This is known as a tax break in the present.
Taxes on employee deferrals are paid later, when you withdraw the money in retirement, which will be taxed as income. Employee deferrals are reported in Box 12 on the employee's W-2, Wage and Tax Statement, but they do not appear in Box 1, Wages, tips, other compensation.
You can choose between employee deferrals and Roth deferrals in your 401(k), depending on when you want to pay taxes on your contributions. Roth deferrals, on the other hand, are made with after-tax money, which means you pay income tax on the contributions when you make them.
Here's a comparison of employee deferrals and Roth deferrals:
With Roth deferrals, you get no immediate tax benefits, but since the money's already been taxed, you get tax-free withdrawals in retirement.
Employer Matching Rules
In the past, employer matching rules for 401k plans were pretty straightforward. Employers could only make matching contributions with pre-tax dollars.
However, with the SECURE 2.0 Act, employers can now choose to make 401k matches as Roth contributions, giving employees a new option for tax-free growth.
Here's a breakdown of the key differences between traditional and Roth 401k employer matching:
This means that employees can now take advantage of tax-free growth, and employers have more flexibility in how they structure their matching contributions.
Who Can Benefit
If you're a young earner with a long time horizon for your money to grow, a Roth deferral can be a great strategy. This is because your money has more time to grow tax-free.
You may also want to consider a Roth deferral if you think you'll be in a higher tax bracket in retirement. This is because you'll be able to contribute to a retirement account with after-tax dollars, but then your money will grow tax-free and you won't have to pay taxes on the withdrawals in retirement.
Individuals in high tax brackets can also benefit from using a Roth deferral strategy. This is because they're already paying a lot in taxes, so contributing to a Roth IRA with after-tax dollars can be a good way to save for retirement.
If you expect your retirement account to grow significantly by the time you retire, a Roth deferral can be a smart choice. This is because you'll be able to keep your money tax-free and avoid paying taxes on the gains.
Here are some key benefits of Roth deferrals to consider:
- You think you’ll be in a higher tax bracket in retirement.
- You expect your retirement account to grow significantly by the time you retire.
- You don’t need the tax deduction this year.
Why it Matters
Understanding the Roth deferral in a 401k plan is crucial because it allows you to contribute after-tax dollars, which can then grow tax-free.
This tax-free growth is a significant advantage, as it means you won't have to pay taxes on the investment gains, unlike with traditional 401k contributions.
The Roth deferral is optional, so you can choose to contribute to it or not, depending on your financial situation and goals.
By contributing to a Roth deferral, you're essentially paying taxes now and getting tax-free growth in the future.
This can be especially beneficial if you expect to be in a higher tax bracket in retirement, as you'll avoid paying taxes on the investment gains then.
Frequently Asked Questions
What is the difference between 401k and 401k Roth deferral?
Pre-tax 401(k) contributions offer an immediate tax break, but taxes are paid in retirement, while Roth 401(k) contributions are made with after-tax dollars, providing tax-free withdrawals in retirement
Is a Roth deferral good?
A Roth deferral may be a good option, but it depends on individual circumstances, such as available Roth space and tax implications. It's generally recommended to favor tax-deferred accounts in peak earnings years, but there are exceptions to consider.
Sources
- https://carry.com/learn/roth-deferral-benefits
- https://www.lawinsider.com/dictionary/roth-deferrals
- https://www.sdretirementplans.com/blog/roth-deferral/
- https://www.fidelity.com/learning-center/personal-finance/roth-401k
- https://thelink.ascensus.com/articles/2022/7/15/pretax-versus-roth-deferrals-understanding-your-401k-contribution-options
Featured Images: pexels.com