What Are Pre-Tax Contributions & How Do They Work?

Pre-tax contributions are amounts your employer pulls from your gross paycheck and routes into a qualifying retirement or health account before federal income tax is calculated, which lowers your taxable income for the year. In 2026 you can defer up to $24,500 into a 401(k) or 403(b), up to $7,500 into a Traditional IRA, and up to $4,400 into a Health Savings Account with self-only coverage. The tax break is real but temporary. You’ll owe ordinary income tax when the money comes back out in retirement, and missing the timing or the limits can trigger penalties on top of the tax.

How the Paycheck Math Works

Your employer runs the deduction against your gross pay. Earn $2,000 in a pay period, elect to defer $200 into a 401(k), and the employer sends that $200 straight into your plan account. Your year-end W-2 shows $200 less in taxable wages, so you skip federal income tax on that money for now.

One point that catches people out: pre-tax 401(k) and 403(b) deferrals reduce your federal income tax, but they do not reduce Social Security or Medicare taxes. FICA is still calculated on your full salary, including the amount you deferred.¹ HSA and FSA contributions made through your employer’s cafeteria plan work differently: those typically avoid both income tax and FICA, which makes them slightly more valuable dollar-for-dollar than a 401(k) deferral of the same size.

Which Accounts Take Pre-Tax Money

Workplace Retirement Plans

The 401(k) is the standard pre-tax vehicle for private-sector workers. Nonprofits, schools, and religious organizations tend to offer 403(b) plans; state and local government employees often get a 457(b). All three work the same way for tax purposes: contributions come out before income tax, the money grows tax-deferred, and withdrawals are taxed as ordinary income.

Traditional IRA

If you don’t have a workplace plan, or you want to save beyond what your plan allows, a Traditional IRA lets you contribute pre-tax dollars through any brokerage. There is no income limit on making the contribution, but there is an income limit on deducting it if you or your spouse is covered by a workplace retirement plan.² The phase-out numbers are below.

Health Savings Account

An HSA lets you set aside pre-tax dollars for medical expenses, but only if you are enrolled in a qualifying high-deductible health plan.³ Unlike retirement accounts, HSA withdrawals for qualified medical costs are never taxed at all: pre-tax going in, tax-free growth, tax-free out for medical spending. After age 65 you can pull HSA money out for any purpose and pay ordinary income tax, similar to a Traditional IRA.

Flexible Spending Accounts

A health care FSA covers medical expenses with pre-tax dollars, capped at $3,400 for 2026. A dependent care FSA covers child or elder care, generally capped at $5,000 per household. The catch is the use-it-or-lose-it rule: unspent balances usually expire at year-end. Some employers offer a grace period of up to two and a half months; others allow a carryover of up to $680 in unused health FSA funds into the following plan year.⁴ You can’t have both, and some employers offer neither.

2026 Contribution Limits

The IRS adjusts most caps annually for inflation. For 2026:

401(k), 403(b), and most 457 plans: $24,500 in employee deferrals²
Total annual additions (employee plus employer) under Section 415: $72,000
Traditional and Roth IRAs: $7,500²
HSA, self-only coverage: $4,400⁵
HSA, family coverage: $8,750⁵
Health care FSA: $3,400

These caps apply across all accounts of the same type. If you hold two 401(k)s from different employers, the $24,500 covers both combined, not $24,500 each.⁶

Catch-Up Contributions After 50

Turning 50 opens the door to extra contributions. For 2026 the standard catch-up on a 401(k) or similar plan is $8,000, bringing the employee deferral ceiling to $32,500.²

A newer rule under the SECURE 2.0 Act adds a bigger catch-up for a narrow age window. If you turn 60, 61, 62, or 63 during 2026, your catch-up rises to $11,250, for a total possible employee deferral of $35,750.² Once you hit 64 the window closes and you drop back to the $8,000 catch-up.

Traditional IRA catch-up for anyone 50 or older is $1,100 in 2026, allowing total contributions of $8,600.² HSA participants aged 55 and older can add an extra $1,000 to the standard HSA limit; that catch-up is set by statute and does not adjust for inflation.

When a Traditional IRA Contribution Stops Being Deductible

You can always put money into a Traditional IRA. Whether the contribution actually reduces your taxes is a separate question that depends on income and workplace-plan coverage. If neither you nor your spouse is covered by a workplace retirement plan, the full deduction is available at any income.²

If workplace coverage is in the picture, the deduction phases out at these 2026 modified adjusted gross income ranges:

Single filer, covered by a workplace plan: $81,000 to $91,000
Married filing jointly, contributor is covered: $129,000 to $149,000
Married filing jointly, contributor not covered but spouse is: $242,000 to $252,000
Married filing separately, covered by a workplace plan: $0 to $10,000

Above the top of your range, the deduction disappears. You can still make the contribution, but it won’t lower your taxable income, which removes most of the point of using a Traditional IRA. A Roth IRA, funded with after-tax dollars and tax-free in retirement, often makes more sense at that income level.²

How the Money Is Taxed When It Comes Out

The tax you skipped going in comes due at withdrawal. Distributions from pre-tax retirement accounts are taxed as ordinary income at whatever federal bracket applies in the year you take the money.⁷ State income tax applies in most states that tax income. These withdrawals are treated as wages, not capital gains, so the lower long-term capital gains rates do not apply.

Withdraw before age 59½ and you generally owe an additional 10% early withdrawal penalty on top of the regular income tax.⁸ A $10,000 early withdrawal can easily cost $3,000 to $4,000 in combined tax depending on your bracket.

Exceptions to the 10% Penalty

The penalty is waived in several situations, though the regular income tax still applies. The IRS recognizes exceptions including total and permanent disability, unreimbursed medical expenses that exceed 7.5% of adjusted gross income, and distributions made after the account holder’s death.⁸

Hardship withdrawals from a 401(k) are stricter. Your plan must permit them, and the need must fit IRS safe harbor categories: medical costs for you or a dependent, buying a principal residence (not mortgage payments), the next 12 months of tuition and room and board, payments to prevent eviction or foreclosure, funeral expenses, and certain home repairs.⁹ Even an approved hardship withdrawal still carries the 10% penalty unless another exception applies.

Required Withdrawals Starting at 73

Pre-tax accounts can’t grow tax-deferred forever. Beginning in the year you turn 73, the IRS requires annual withdrawals called required minimum distributions from your Traditional IRA, 401(k), 403(b), and similar accounts.¹⁰ If you are still working and don’t own more than 5% of the company, you can delay RMDs from your current employer’s plan until you actually retire.

Miss an RMD and you owe a 25% excise tax on the amount you should have taken. Catch and correct the mistake within two years and the penalty drops to 10%.¹⁰ HSAs are the exception: they have no required minimum distributions at any age.

If You Contribute Too Much

Putting more than the annual limit into an IRA triggers a 6% excise tax on the excess amount for every year it stays in the account.¹¹ The fix: withdraw the excess plus any earnings it produced by the due date of your return, including extensions. If you filed on time but missed the error, you get an extra six months after the original due date (excluding extensions) to pull the money out and file an amended return.

For 401(k) plans, excess deferrals above $24,500 must be reported to your employer, and the plan is required to return the excess by April 15 of the following year. If you have 401(k)s at multiple employers, tracking the combined total is on you: the plans do not share data with each other.⁶

1
Internal Revenue Service. Retirement Plan FAQs Regarding Contributions
2
Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500
3
Internal Revenue Service. Individuals Who Qualify for an HSA
4
Internal Revenue Service. Publication 969 – Health Savings Accounts and Other Tax-Favored Health Plans
5
Internal Revenue Service. Notice 26-05 – 2026 HSA Limits
6
Internal Revenue Service. Consequences to a Participant Who Makes Excess Annual Salary Deferrals
7
Internal Revenue Service. Retirement Topics – Tax on Normal Distributions
8
Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions
9
Internal Revenue Service. Retirement Topics – Hardship Distributions
10
Internal Revenue Service. Retirement Plan and IRA Required Minimum Distributions FAQs
11
Internal Revenue Service. Instructions for Form 5329 – Additional Taxes on Qualified Plans (Including IRAs) and Other Tax-Favored Accounts