Retirement Account Comparison
Compare Traditional IRA, Roth IRA, 401(k), 403(b), 457(b), SEP IRA, SIMPLE IRA, and Solo 401(k)  contribution limits, tax treatment, and features for 2026.
Key Numbers
IRA Limit
$7,500 ($8,600 50+)
401(k) Limit
$24,500 ($32,500 50+)
Solo 401(k) Max
$72,000
Roth Phaseout
$153K (Single)
The right retirement account depends on your employment situation, income level, and tax strategy. This reference covers all major account types with 2026 contribution limits, tax treatment, and key features.
At-a-Glance Comparison
| Account | 2026 Limit | Tax Treatment | RMDs? | Best For |
|---|---|---|---|---|
| Traditional IRA | $7,500 | Pre-tax* | Yes (73) | Higher bracket now |
| Roth IRA | $7,500 | After-tax | No | Lower bracket now |
| 401(k) | $24,500 | Pre-tax / Roth | Trad: Yes; Roth: No | Employer match |
| 403(b) | $24,500 | Pre-tax / Roth | Yes (73) | Nonprofits, education |
| 457(b) | $24,500 | Pre-tax / Roth | Yes (73) | Government, double-dipping |
| SEP IRA | $72,000 | Pre-tax† | Yes (73) | Self-employed, high income |
| SIMPLE IRA | $17,000 | Pre-tax† | Yes (73) | Small employers (≤100) |
| Solo 401(k) | $72,000 | Pre-tax / Roth | Yes (73) | Self-employed, max savings |
* Traditional IRA deduction may be limited if covered by an employer plan. † SECURE 2.0 permits Roth contributions for SEP and SIMPLE IRAs if the plan allows it; availability varies by provider. Roth 401(k) RMD exemption effective 2024 under SECURE 2.0.
2026 Catch-Up Contributions
| Account | Base Limit | Catch-Up (50+) | Super (60–63) | Max Total |
|---|---|---|---|---|
| IRA (Trad / Roth) | $7,500 | +$1,100 | — | $8,600 |
| 401(k) / 403(b) / 457(b) | $24,500 | +$8,000 | +$11,250 | $35,750* |
| SIMPLE IRA | $17,000 | +$4,000 | +$5,250 | $22,250* |
* Max shown uses super catch-up (ages 60–63). Ages 50–59 and 64+ use standard catch-up. Starting in 2026, employees earning over $150,000 in FICA wages must make catch-up contributions as Roth.
Traditional (Pre-Tax)
Contributions reduce taxable income now. Growth is tax-deferred. Withdrawals are taxed as ordinary income in retirement.
Roth (After-Tax)
Contributions use after-tax dollars (no deduction). Growth and qualified withdrawals are completely tax-free.
Traditional & Roth IRAs
Individual Retirement Accounts are personal accounts you open yourself, independent of any employer. The two main types differ in tax treatment, income limits, and withdrawal rules.
Traditional IRA vs. Roth IRA
| Feature | Traditional IRA | Roth IRA |
|---|---|---|
| 2026 Limit | $7,500 ($8,600 if 50+) | $7,500 ($8,600 if 50+) |
| Tax on Contributions | Deductible* | Not deductible |
| Tax on Growth | Tax-deferred | Tax-free |
| Tax on Withdrawals | Taxed as ordinary income | Tax-free (if qualified) |
| Income Limits | None to contribute | Yes (see below) |
| RMDs | Yes, at 73 | No |
| Early Withdrawal | 10% penalty + tax before 59½ | Contributions anytime; 10% on earnings before 59½ |
* Deduction may be reduced or eliminated if you (or spouse) are covered by an employer plan and income exceeds the phase-out thresholds below.
2026 Roth IRA Income Limits (MAGI)
| Filing Status | Full Contribution | Phase-Out Range | No Contribution |
|---|---|---|---|
| Single / HoH | < $153,000 | $153,000 – $168,000 | ≥ $168,000 |
| Married Filing Jointly | < $242,000 | $242,000 – $252,000 | ≥ $252,000 |
| Married Filing Separately | $0 | $0 – $10,000 | ≥ $10,000 |
2026 Traditional IRA Deduction Phase-Outs (MAGI)
| Situation | Phase-Out Range |
|---|---|
| Single, covered by employer plan | $81,000 – $91,000 |
| MFJ, contributor covered by employer plan | $129,000 – $149,000 |
| MFJ, contributor NOT covered but spouse IS | $242,000 – $252,000 |
| Married filing separately, covered by plan | $0 – $10,000 |
Backdoor Roth IRA: If your income exceeds Roth IRA limits, you can contribute to a non-deductible Traditional IRA and convert to Roth. No income limit applies, but beware the pro-rata rule if you hold pre-tax IRA funds.
Employer Plans
Employer-sponsored plans — 401(k), 403(b), and 457(b) — share the same $24,500 deferral limit but differ in eligibility, employer matching, and withdrawal rules.
401(k) vs. 403(b) vs. 457(b)
| Feature | 401(k) | 403(b) | 457(b) |
|---|---|---|---|
| Offered By | For-profit companies | Nonprofits, schools, hospitals | Government, some nonprofits |
| 2026 Deferral Limit | $24,500 | $24,500 | $24,500 |
| Total Limit (+ employer) | $72,000 | $72,000 | Employee only* |
| Roth Option | Yes (if offered) | Yes (if offered) | Yes (if offered) |
| Employer Match | Common | Sometimes | Rare |
| 10% Early Penalty? | Yes (before 59½) | Yes (before 59½) | No (govt 457b)** |
| Separate Limit? | No | No (shares with 401k) | Yes — can double-dip |
* 457(b) plans typically don't include employer contributions toward the limit. ** Government 457(b) plans have no 10% early withdrawal penalty; tax-exempt org 457(b) plans do. If you have access to both a 403(b) and a govt 457(b), you can max out both — up to $49,000 in employee deferrals for 2026 (or more with catch-up).
Traditional vs. Roth 401(k)
| Feature | Traditional 401(k) | Roth 401(k) |
|---|---|---|
| Contribution Limit | $24,500 (shared) | $24,500 (shared) |
| Income Limits | None | None |
| Tax on Contributions | Pre-tax (reduces taxable income) | After-tax (no deduction) |
| Tax on Withdrawals | Fully taxed | Tax-free (if qualified) |
| RMDs | Yes (age 73) | No (as of 2024) |
| Employer Match | Goes to Traditional | Goes to Traditional* |
* Employer matching contributions are always pre-tax, regardless of your election. Starting in 2026, employees earning over $150,000 must make catch-up contributions as Roth.
Rule of 55: If you leave your job in the year you turn 55 or later, you can withdraw from that employer's 401(k)/403(b) without the 10% penalty. Does not apply to IRAs or previous employers' plans.
Self-Employed Plans
Self-employed individuals and small business owners have three main plan options, each with different contribution structures, flexibility, and administrative requirements.
SEP IRA vs. SIMPLE IRA vs. Solo 401(k)
| Feature | SEP IRA | SIMPLE IRA | Solo 401(k) |
|---|---|---|---|
| Best For | Self-employed, high income | Small biz (≤100 employees) | Self-employed, no employees |
| 2026 Max | $72,000 | $17,000 + match | $72,000 |
| Contribution Type | Employer only (25% of comp) | Employee + employer | Employee + employer |
| Catch-Up (50+) | None | +$4,000 | +$8,000 |
| Super Catch-Up (60–63) | None | +$5,250 | +$11,250 |
| Roth Option | If offered* | If offered* | Yes |
| Loans | No | No | Yes |
| Can Have Employees? | Yes (must cover all) | Yes (≤100) | No (except spouse) |
| Setup Complexity | Very easy | Easy | Moderate |
| Filing | None | None | 5500-EZ if >$250K |
* SECURE 2.0 permits Roth contributions for SEP and SIMPLE IRAs starting in 2023, but not all providers support it yet. Employer with ≤25 employees may qualify for higher SIMPLE limits ($18,100 base / $3,850 catch-up) under SECURE 2.0.
Solo 401(k) & SEP IRA Contribution Structure
| Component | Solo 401(k) | SEP IRA |
|---|---|---|
| Employee Deferral | $24,500 (Traditional or Roth) | N/A — employer-only |
| Employer Contribution | Up to 25% of net SE income | Up to 25% of comp (~20% net SE*) |
| 2026 Combined Max | $72,000 | $72,000 |
| With Catch-Up (50+ / 60–63) | $80,000 / $83,250 | No catch-up available |
* Self-employed SEP formula: (Net SE Income − ½ SE Tax) × 0.25 ÷ 1.25. Effective rate ≈ 18.59% of net SE income.
SIMPLE IRA Match: Option 1
Dollar-for-dollar match up to 3% of compensation. Can reduce to 1% for 2 of any 5 years.
SIMPLE IRA Match: Option 2
Non-elective 2% of each eligible employee's compensation, regardless of whether the employee contributes.
SIMPLE IRA 25% penalty: Withdrawals within the first 2 years of participation incur a 25% early withdrawal penalty (vs. the usual 10%). After 2 years, the standard 10% penalty applies before age 59½.
Sources
- 1.IRS — 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500
- 2.IRS Notice 2025-67 — 2026 Amounts Relating to Retirement Plans and IRAs
- 3.IRS — Retirement Topics: IRA Contribution Limits
- 4.IRS — Retirement Topics: 401(k) and Profit-Sharing Plan Contribution Limits
- 5.IRS — Choosing a Retirement Plan: SEP IRA
- 6.IRS — SIMPLE IRA Plans
- 7.IRS — One-Participant 401(k) Plans (Solo 401k)
This content is for educational and informational purposes only and does not constitute financial, tax, or legal advice. Consult a qualified professional for guidance tailored to your situation.