Most people think about retirement savings as money they set aside from what’s left after taxes. Pretax contributions flip that thinking on its head. You get to pay yourself first, before the IRS takes its share. This simple shift creates one of the most powerful wealth-building tools available.
Here is how it works. Money you contribute to certain retirement accounts comes directly off the top of your income before you calculate taxes. If you earn $100,000 and contribute $20,000 to a pretax account, you only pay taxes on $80,000. That money grows tax-deferred for years or decades. When you finally withdraw it in retirement, you pay ordinary income tax on those withdrawals.
The trade-off is straightforward. You get an immediate tax break now in exchange for paying taxes later. The government encourages this behavior because it helps Americans save for retirement without relying entirely on Social Security. Over the years, Congress created multiple account types that offer pretax contributions. Each has its own rules, limits, and strategic considerations. This guide walks through all of them.
Pretax Contributions Explained
Pretax contributions are exactly what they sound like. You put money into a retirement account before federal and state income taxes are calculated on that money. Your employer deducts it directly from your paycheck, or you contribute directly if you are self-employed.
The immediate benefit shows up on your tax return. Your adjusted gross income goes down by the amount you contributed. For someone in the 24% tax bracket, a $10,000 pretax contribution saves $2,400 in federal taxes that year.
The money then grows inside the account without any tax drag. You do not pay capital gains taxes when you sell investments inside the account. You do not pay taxes on dividends or interest. All of it compounds year after year.
The government eventually gets its tax money when you take distributions in retirement. At that point, every dollar you withdraw is taxed as ordinary income. If you are in a lower tax bracket during retirement than you were during your working years, you come out ahead.
Roth contributions work in reverse. You pay taxes now, contribute after-tax money, and withdrawals in retirement are tax-free. Most people benefit from having some of both for tax diversification.
Which Retirement Accounts Allow Pretax Contributions?
Not every retirement account offers pretax contributions. Here is a quick overview of the accounts that do:
- 401k plans – The most common workplace plan. Employee deferrals can be pretax or Roth.
- 403b plans – For employees of public schools and certain tax-exempt organizations.
- Governmental 457b plans – For state and local government employees.
- Traditional IRAs – Available to anyone with earned income, but deductibility depends on income.
- SEP IRAs – For self-employed individuals and small business owners. Employer contributions only.
- SIMPLE IRAs – For businesses with 100 or fewer employees. Employee deferrals plus employer contributions.
- Solo 401ks – For business owners with no employees other than a spouse. Offers both employee deferrals and employer profit-sharing.
Roth accounts, after-tax sub-accounts within 401k plans, and non-governmental 457b plans follow different rules. We will cover those where relevant, but the focus here is on pretax contributions.
The 401k – How Pretax Contributions Work for Workplace Plans
Let’s dive into all the details relating to 401k accounts.
How Much Can I Contribute to My 401k on a Pretax Basis in 2026?
For 2026, the base employee deferral limit increased to $24,500. This applies to all employees participating in 401k, 403b, and governmental 457b plans. If you are age 50 or older, you can add an $8,000 catch-up contribution, bringing your total to $32,500.
A special rule applies if you will be age 60, 61, 62, or 63 during 2026. The SECURE 2.0 Act created an enhanced catch-up for this group. You can contribute up to $11,250 in catch-up contributions instead of the standard $8,000. This brings your total pretax contribution potential to $35,750 for the year.
There is an important new rule to understand. Under SECURE 2.0, if your prior year wages exceeded $150,000, your catch-up contributions generally must be made as Roth contributions rather than pretax. This requirement applies to 401k, 403b, and governmental 457b plans. However, final IRS regulations extended the implementation deadline, and some plans may not enforce this until 2027. Check with your plan administrator about how your specific plan handles this rule.
Employer matching contributions are always pretax. If your company matches your deferrals, those dollars go into your account pretax and will be taxed when you withdraw them in retirement.
The total annual addition limit for 401k plans in 2026 is $72,000. This includes your employee deferrals, employer matching, and any after-tax contributions. For participants age 50 and older with catch-up contributions, the total limit is $80,000.
The Solo 401k – Pretax Contributions for Entrepreneurs
A Solo 401k offers the same basic structure as a corporate 401k but with one critical difference: you are both the employee and the employer. This dual role allows you to make contributions from both sides of the equation.
How Do Pretax Contributions Work for a Solo 401k?
As the employee, you can make pretax deferrals up to $24,500 in 2026. If you are age 50 or older, you can add the $8,000 catch-up. For those ages 60-63, the enhanced catch-up of $11,250 applies.
As the employer, you can also make profit-sharing contributions. The calculation depends on how your business is structured. For S corporations, the employer contribution is 25% of your W-2 wages. For sole proprietors and single-member LLCs, the calculation is 20% of your net earnings from self-employment after deducting half of your self-employment tax.
These two contributions combine toward the total annual limit of $72,000 for 2026. For participants age 50 and older, the total limit is $80,000. For those ages 60-63, the enhanced catch-up brings the total potential contribution to $83,250.
The Solo 401k also offers Roth options. You can make employee deferrals as Roth contributions instead of pretax. Under SECURE 2.0, you can even make employer profit-sharing contributions as Roth, though doing so requires you to recognize the contribution amount as taxable income.
Can I Make Pretax Contributions to a Traditional IRA in 2026?
The short answer is yes, but with important qualifications. For 2026, the maximum contribution to a Traditional IRA is $7,500. If you are age 50 or older, you can add a $1,100 catch-up, bringing your total to $8,600.
Here is where it gets complicated. Whether you can deduct those contributions on your tax return depends on your income and whether you or your spouse participate in an employer-sponsored retirement plan at work.
If neither you nor your spouse is covered by a workplace plan, you can fully deduct your Traditional IRA contributions regardless of your income.
If you are covered by a workplace plan, the deduction phases out based on your modified adjusted gross income. For 2026, the phaseout ranges are:
- Single filers and heads of household: $81,000 to $91,000
- Married filing jointly: $129,000 to $149,000
- Married filing separately: Less than $10,000 (virtually no deduction available)
If you are not covered by a workplace plan but your spouse is, different rules apply. In that case, your deduction phases out between $242,000 and $252,000 of joint MAGI.
If your income exceeds these limits, you can still make nondeductible Traditional IRA contributions. Those contributions do not give you an upfront tax break, but the earnings still grow tax-deferred. You also keep basis in the account that will not be taxed when you withdraw. Many people use nondeductible IRA contributions as a stepping stone for Backdoor Roth conversions.
The deadline for 2026 Traditional IRA contributions is April 15, 2027. You can make contributions up until tax day and designate them for the prior year.
How Do SEP IRA Pretax Contributions Work for 2026?
SEP IRAs are designed for self-employed individuals and small business owners who want a straightforward retirement plan without the administrative complexity of a 401k. The entire plan is funded by employer contributions. There are no employee deferrals. Every dollar that goes into a SEP IRA is a pretax contribution from the business.
For 2026, the contribution limit is the lesser of 25% of compensation or $72,000. If you are self-employed and file Schedule C, the calculation uses 20% of your net earnings from self-employment after deducting half of your self-employment tax. This percentage adjustment accounts for the fact that your own contribution reduces your net earnings. The IRS sets the compensation limit at $360,000 for 2026, meaning you cannot base contributions on compensation above that amount.
A major change under SECURE 2.0 created a new option for SEP IRAs. Starting in 2024, employers can offer employees the choice to treat their SEP contributions as Roth contributions. This means the employee recognizes the contribution as taxable income now, but future qualified withdrawals are tax-free. The employer still gets the same tax deduction for the contribution. For self-employed individuals, this creates a planning opportunity. You can make your own SEP contribution as Roth, paying tax now, and have tax-free growth and withdrawals later.
What Are the 2026 Pretax Contribution Limits for a SIMPLE IRA?
SIMPLE IRAs serve small businesses with 100 or fewer employees. The name stands for Savings Incentive Match Plan for Employees. The structure is intentionally simple, with higher contribution limits than a Traditional IRA but lower than a 401k.
For 2026, employees can defer up to $17,000 in pretax contributions. If you are age 50 or older, you can add a $4,000 catch-up contribution, bringing your total to $21,000. For those ages 60-63, the enhanced catch-up contribution is $5,250, bringing the total to $22,250.
Employers have two options for their required contributions. The standard approach is a dollar-for-dollar match on employee deferrals up to 3% of compensation. The alternative is a 2% non-elective contribution, meaning the employer contributes 2% of compensation to every eligible employee regardless of whether they defer any of their own money.
Employee deferrals traditionally come out of your paycheck before taxes, and employer contributions are deductible to the business and are not taxable to you until you withdraw them in retirement. Under SECURE 2.0, SIMPLE IRAs can now offer Roth contributions beginning in 2024, allowing participants to make after-tax employee deferrals that will grow and be withdrawn tax-free in retirement, similar to Roth 401k options.
The deadline for SIMPLE IRA contributions is slightly different than other accounts. Employer contributions must be made by the business tax filing deadline, typically March 15 for corporations or April 15 for sole proprietors, plus extensions. Employee deferrals must be withheld from payroll throughout the year.
How Do Pretax Contributions Work for 403b and 457b Plans?
403b plans serve employees of public schools, universities, hospitals, and certain tax-exempt organizations. Governmental 457b plans serve state and local government employees. Both offer pretax contribution options with the same base limit as 401k plans.
For 2026, the base employee deferral limit is $24,500. The standard $8,000 catch-up applies for those age 50 and older, and the enhanced $11,250 catch-up applies for those ages 60 through 63.
403b plans have a unique feature called the 15-year catch-up. If you have at least 15 years of service with the same employer, you may be eligible for an additional catch-up contribution. The maximum additional amount is the lesser of $3,000 per year or $15,000 total over your career. This rule applies separately from the age-based catch-up, and you can use both if you qualify.
Governmental 457b plans offer a powerful advantage. Unlike 401k and 403b plans, the employee deferral limit for a 457b is separate from the limits that apply to other plans. If you participate in both a 457b and a 401k or 403b, you can contribute the maximum to each plan. For 2026, that means you could defer up to $24,500 to a 457b and another $24,500 to a 401k or 403b, effectively doubling your pretax contributions.
Non-governmental 457b plans, typically offered by nonprofit organizations, follow different rules. They are still pretax contributions, but the money is considered an unfunded liability of the employer. You cannot roll these funds into an IRA or another employer’s plan. The funds are subject to the employer’s creditors, which creates additional risk.
Which Retirement Accounts Do Not Allow Pretax Contributions?
Several retirement accounts either do not offer pretax contributions or treat them differently. Understanding these distinctions helps you avoid confusion.
Roth IRAs accept only after-tax contributions. You pay taxes on the money before it goes into the account, and qualified withdrawals in retirement are tax-free. There is no pretax version of a Roth IRA.
Roth 401k and Roth Solo 401k contributions work the same way. You choose to make your employee deferrals as Roth instead of pretax. The money is after-tax going in, and qualified distributions come out tax-free. Under SECURE 2.0, employer contributions can also be designated as Roth, but those contributions must be included in your taxable income in the year they are made.
After-tax sub-accounts within 401k plans are a different bucket entirely. These contributions are made with after-tax dollars but are not Roth. Earnings grow tax-deferred. When you withdraw, the contribution portion comes out tax-free, and earnings are taxed as ordinary income. This bucket is used primarily for Mega Backdoor Roth strategies.
Non-governmental 457b plans allow pretax contributions, but they do not offer Roth options. The more significant distinction is that these accounts cannot be rolled into an IRA or other employer plan. They must be distributed according to the plan’s terms, usually in a lump sum or over a defined period after separation from service.
Taxable brokerage accounts and Health Savings Accounts are sometimes confused with retirement accounts. Brokerage accounts offer no tax deduction for contributions. HSAs offer a pretax deduction but are designed for medical expenses, not retirement savings.
Should You Make Pretax or Roth Contributions?
Deciding between pretax and Roth contributions is one of the most important choices in retirement planning. The right answer depends on your current tax situation, your expected tax situation in retirement, and your personal goals.
Pretax contributions generally make sense when you are in a high tax bracket now and expect to be in a lower bracket during retirement. If you are a high earner, the immediate tax savings at your marginal rate can be substantial. Lowering your adjusted gross income may also help you qualify for other tax benefits or stay below phaseout thresholds.
Roth contributions make sense in the opposite scenario. If you are early in your career and in a low tax bracket, paying tax now to secure tax-free growth and withdrawals later is often a winning strategy. Roth accounts also offer flexibility. There are no required minimum distributions during your lifetime, making them ideal for leaving tax-free inheritance to heirs.
Many people use both pretax and Roth accounts to achieve tax diversification. Having a mix of taxable, tax-deferred, and tax-free dollars in retirement gives you flexibility to manage your tax bracket each year. You can draw from pretax accounts up to a certain income threshold, then supplement with Roth dollars without pushing yourself into a higher bracket.
One practical consideration is contribution size. Pretax contributions reduce your tax bill today, which can make it easier to afford larger contributions. Roth contributions come from after-tax dollars, so contributing the same amount requires more gross income.
Common Pretax Contribution Mistakes to Avoid
Even small mistakes with pretax contributions can cost you money or create administrative headaches. Here are the most common pitfalls and how to avoid them.
Contributing more than the annual limit. This is surprisingly easy to do if you change jobs mid-year or contribute to multiple accounts. For 401k and 403b plans, the combined employee deferral limit applies across all such plans. If you exceed the limit, you must request a return of excess contributions by the tax filing deadline to avoid a 6% excise tax.
Not adjusting contributions when income changes. If your income rises significantly, you may become subject to IRA deduction phaseouts or the new Roth catch-up requirement. If your income drops, you may be able to contribute more than you realized. Review your contribution strategy annually.
Assuming IRA contributions are deductible without checking phaseouts. Many people contribute to a Traditional IRA expecting a deduction, only to discover at tax time that their income exceeds the limit. Use the IRS phaseout tables or consult a tax professional before assuming deductibility.
Missing the Roth catch-up rule for high earners. Under SECURE 2.0, high earners with wages over $150,000 generally cannot make catch-up contributions as pretax. Check whether your employer’s plan has implemented this rule and adjust your elections accordingly.
Overlooking employer match opportunities. If your employer offers a match on your pretax contributions, contributing enough to capture the full match is a guaranteed return on investment. Leaving match money on the table is effectively turning down free compensation.
Failing to coordinate contributions across multiple plans. If you contribute to both a 401k and a 403b, or if you have a Solo 401k and also participate in a workplace plan, the employee deferral limit applies across all plans combined. Track your totals throughout the year.
Building Your Retirement Strategy with Pretax Dollars
Pretax contributions remain one of the most powerful tools in retirement planning. They offer immediate tax relief, years of tax-deferred growth, and the flexibility to control your tax bracket in retirement. The key is using them intentionally, not automatically.
The accounts covered in this guide each serve different purposes. Workplace 401ks and 403bs provide high limits and employer matches. Solo 401ks let business owners double their contributions. SEP and SIMPLE IRAs offer simpler alternatives for small businesses. Traditional IRAs give everyone access, though deductibility depends on income.
The choice between pretax and Roth is not permanent. You can use both in different years or even within the same year. The goal is tax diversification, not picking a winner. Having pretax dollars, Roth dollars, and taxable accounts gives you options when you need them.
Review your contribution strategy each year. Tax laws change, your income changes, and your goals evolve. The decisions you make today about pretax contributions will shape your retirement for decades. Make them with care.
FAQ
Can I make pretax contributions to a Roth IRA?
No. Roth IRA contributions are always made with after-tax dollars. However, you can have both a pretax traditional IRA and a Roth IRA, subject to income limits.
What happens if I contribute too much to my pretax accounts?
Excess contributions must be withdrawn by the tax filing deadline to avoid a 6% excise tax each year they remain in the account. Earnings on excess contributions are also taxable.
Do pretax contributions affect my Social Security benefits?
Pretax contributions reduce your taxable income but do not reduce your wages subject to Social Security and Medicare taxes (FICA). They do not affect your future Social Security benefit calculation.
Can I change my pretax contribution amount during the year?
For workplace plans like 401ks, yes, typically you can adjust your deferral percentage at any time subject to plan rules. For IRAs, you can contribute up to the limit at any time before the tax filing deadline.
Are pretax contributions subject to required minimum distributions?
Yes. Pretax dollars in traditional IRAs and workplace plans are subject to RMDs starting at age 73 (for those born 1951-1959) or 75 (for those born 1960 or later). Roth accounts are not subject to lifetime RMDs.
What is the deadline for making pretax IRA contributions for the 2026 tax year?
April 15, 2027. You can make contributions up until the tax filing deadline and designate them for the prior tax year.
If I have multiple retirement accounts, how do I track my total pretax contributions?
You are responsible for monitoring your own totals. For 401k/403b plans, the combined employee deferral limit applies across all such plans. For IRAs, the combined limit applies across all traditional and Roth IRAs. Keep detailed records or use tax software to help track.
