401(k), IRA and HSA Limits for 2026 (Plus 2027 HSA Limits)

1. Core Terminology: Contribution Limits vs. Deduction Limits

For tax year 2026, you can defer up to $24,500 into a workplace 401(k), put $7,500 into an individual retirement account (IRA), and add $4,400 to a health savings account (HSA) if you have self-only health coverage (IRS Notice 2025-67 and Revenue Procedure 2025-19).

Before allocating funds, understand that a contribution limit is the maximum dollar amount you can deposit into an account in a given tax year. A deduction limit is the portion of that contribution you can subtract from your gross income on your tax return. For a 401(k), contributions and deductions match dollar-for-dollar; for IRAs, phase-out rules determine how much is deductible.

An elective deferral is salary you choose to direct into a workplace retirement plan rather than receiving it in cash. A catch-up contribution is an additional statutory allowance granted to savers age 50 and older (or 55+ for HSAs) to accelerate retirement balances.

2. Master Summary: 2026 Contribution Limits

The following table reflects official statutory figures published by the Internal Revenue Service for tax year 2026.

Note that the HSA catch-up contribution remains statutory at $1,000 (set by Congress without inflation indexing), whereas the IRA catch-up is now inflation-adjusted and rose to $1,100.

3. Already Announced: Official 2027 HSA Thresholds

Because the IRS calculates HSA parameters using chained CPI figures earlier in the year, the 2027 limits have already been published in Revenue Procedure 2026-24. These figures are crucial for employees evaluating benefit selections during fall open enrollment.

To qualify for an HSA contribution, you must be covered under a qualifying High-Deductible Health Plan (HDHP) on the first day of the month, have no disqualifying non-HDHP coverage, not be enrolled in Medicare, and not be claimed as a dependent on someone else's return.

4. The 4 Key Changes Effective for Tax Year 2026

First, standard 401(k) elective deferrals increased by $1,000 from $23,500 to $24,500, with the combined employer/employee plan cap expanding from $70,000 to $72,000.

Second, the mandatory Roth catch-up rule: Under SECURE 2.0 implementation, employees whose prior-year FICA compensation from the plan sponsor exceeded $150,000 can no longer make pre-tax catch-up contributions. All catch-up amounts must be contributed on a Roth (post-tax) basis.

Third, Bronze and Catastrophic health insurance plans now legally qualify as HSA-eligible plans under Notice 2026-05, even if they deviate from traditional HDHP deductible formulas.

Fourth, direct primary care arrangements (retainer-based medical practices) no longer disqualify participants from funding an HSA, provided monthly fees remain at or below $150/month for individuals or $300/month for families.

5. IRA Income Phase-Out Ranges for 2026

You can contribute to a traditional IRA regardless of your income level, but your ability to deduct that contribution phases out if you or your spouse is covered by an active workplace retirement plan.

Similarly, your ability to make direct contributions to a Roth IRA phases out once Modified Adjusted Gross Income (MAGI) crosses statutory thresholds.

6. Real Tax Math: What Maxing Out a 401(k) Actually Saves You

A pre-tax 401(k) deferral reduces your taxable gross income at your highest marginal federal bracket. FICA taxes (6.2% Social Security and 1.45% Medicare) still apply to deferred compensation.

For a single taxpayer earning $100,000 in gross wages taking the $16,100 standard deduction, contributing the full $24,500 reduces taxable income from $83,900 to $59,400.

Federal income tax drops from $13,170 down to $7,780—generating an instant cash tax savings of $5,390 (a 22% marginal savings on the entire $24,500 deferral). In states with state income tax (like California), state savings add another $2,240, yielding $7,630 in total annual tax reduction.

7. The Recommended Hierarchy: Where Your Next Dollar Should Go

1. Capture 100% of Employer 401(k) Match: This represents an immediate 50% to 100% guaranteed return on investment before tax savings.

2. Maximize Health Savings Account (HSA): The HSA is the only triple-tax-advantaged account in the US tax code: tax-deductible contributions, tax-free investment compounding, and tax-free distributions for qualified medical care.

3. Fund Roth or Traditional IRA ($7,500): Provides access to low-cost index funds and broad investment options beyond restrictive employer 401(k) menus.

4. Return to 401(k) up to the $24,500 Ceiling: Shelter the remainder of your upper-bracket earnings from current-year federal and state taxation.