403(b) vs 401(k): What Teachers and Nonprofits Should Know

Quick Answer

403(b) plans are similar to 401(k)s but for teachers, nonprofit employees, and government workers. 2026 contribution limits are the same ($23,500 employee deferral; $31,000 at age 50+). Main differences: 403(b)s may have more limited investment options (annuities historically), lower fees are sometimes available through nonprofit vendors, and some teachers qualify for defined benefit pensions (reducing retirement savings needs). Teachers should maximize their 403(b) and coordinate with pensions.

What Is a 403(b) Plan?

A 403(b) (named after the IRS code section) is a retirement plan for:

• Public school teachers (K–12).
• Nonprofit organization employees (nonprofits, charities, foundations).
• Some government employees (varies by state/locality).

Functionally, a 403(b) is nearly identical to a 401(k):

• Contributions reduce current taxable income.
• Growth is tax-deferred.
• Withdrawals at 59.5+ are taxed as ordinary income.
• Early withdrawal (before 59.5) incurs a 10% penalty (with exceptions).

2026 403(b) Contribution Limits

These are identical to 401(k) limits.

Additional catch-up for long-serving employees: Teachers with 15+ years of service may be eligible for an extra $3,000/year catch-up contribution (lifetime $15,000 max). This is unique to 403(b)s.

Example: Teacher age 35, 18 years of service.

• Employee deferral: $23,500
• Long-service catch-up: $3,000
• Total: $26,500 (higher than non-long-service employees)

403(b) vs. 401(k): Key Differences

Investment Options in 403(b)

Historically, 403(b)s offered primarily annuities (insurance products). Annuities provide guaranteed income but have high fees (1%–3% annually).

Modern 403(b)s increasingly offer mutual funds and ETFs, which have lower fees (0.2%–0.5%).

Recommendation: If your district offers low-cost mutual fund or ETF options, prioritize those over annuities. Over 30 years, a 1% fee difference compounds significantly.

Example: $500,000 portfolio, 30 years of growth.

• Annuity (2% fee): Grows to $850,000.
• Low-cost fund (0.3% fee): Grows to $1,200,000.
• Difference: $350,000 (expense drag over time).

Advocate with your district to offer low-cost index funds.

Employer Matching in 403(b)

Many school districts and nonprofit employers offer employer matches:

• Common match: 3–5% of salary.
• Vesting: Immediate or 3–5 years.

Always contribute at least enough to claim the full match. It's free money.

Example: Teacher earning $65,000, employer offers 3% match.

• You contribute 3% ($1,950), employer matches ($1,950).
• Combined: $3,900 to 403(b) for just your $1,950 contribution.
• Return: 100%.

Pensions and 403(b) Coordination

Many school districts offer defined benefit pensions to teachers. The pension is separate from the 403(b).

Pensions provide a fixed monthly income in retirement (e.g., $2,500/month for a 30-year teacher).

Impact on retirement planning:

• A pension reduces how much you need to save in the 403(b).
• But 403(b) matches still reduce taxes, so contribute at least the match amount.

Example: Teacher with 30-year pension ($2,500/month = $30,000/year).

• Annual spending in retirement: $50,000.
• Pension covers: $30,000.
• Gap from 403(b) withdrawals: $20,000.
• 403(b) needed (4% rule): $500,000.

Without a pension, the same teacher would need $1,250,000 in the 403(b).

Pension coordination: Contribute to the 403(b) but don't feel pressured to save as aggressively as non-pension employees.

Vesting Schedules

Some employers use vesting schedules for employer contributions:

• Immediate vesting: Employer match is yours immediately.
• 3-year vesting: You're 0% vested year 1, 33% vested year 2, 66% vested year 3, 100% vested year 4.

If you leave before vesting, you lose the unvested portion.

Example: 3-year vest, employer matches $2,000/year.

• Year 1: $2,000 match, but 0% vested ($0 yours).
• Year 2: $4,000 total (current + prior), 33% vested ($1,330 yours).
• Year 3: $6,000 total, 66% vested ($3,960 yours).
• Year 4 (if you stay): 100% vested ($6,000 yours).

If you leave after year 2, you keep $1,330 and lose $2,670.

For teachers planning to stay until retirement, vesting matters less. For those considering switching districts, check vesting schedules before leaving.

Rollovers and Direct Transfers

You can roll a 403(b) to:

• Another 403(b) plan (changing employers).
• A traditional IRA (preserving tax-deferral).
• A traditional 401(k) (if rolling to a for-profit employer's plan).

Why roll?: Lower fees, better investment options, simplified account management.

Example: Teacher leaving district A for district B, with a $250,000 403(b) balance in high-fee annuities.

• Option 1: Leave it in the old 403(b) (paying 2% annual fees = $5,000/year).
• Option 2: Roll to a traditional IRA at a low-cost provider like Fidelity (paying 0.3% fees = $750/year).
• Annual savings: $4,250.

Rolling to an IRA is often beneficial if the IRA offers lower-cost investments.

Catch-Up for Long-Service Educators (15+ Years)

Teachers with 15+ years of service can make an additional $3,000 catch-up contribution (lifetime max $15,000).

Example: Teacher age 50 with 20 years of service.

• Standard deferral: $23,500
• Age 50+ catch-up: $7,500
• Long-service catch-up: $3,000
• Total: $34,000

This is available for a limited time (until the $15,000 lifetime max is reached), so eligible teachers should take advantage.

Loan Options in 403(b)

Some 403(b) plans allow loans against your balance:

• Borrow up to 50% of balance or $50,000, whichever is less.
• Repay over 5 years with interest (typically prime rate + 1%).
• Failure to repay triggers a taxable distribution and 10% penalty.

When to borrow: Down payment on a home, emergency, or business investment.

Risks: Loan reduces retirement savings and can be costly if you leave the employer (outstanding balance may be due immediately).

Roth 403(b) Option

Some employers offer Roth 403(b)s (in addition to traditional):

• Contributions are after-tax (no deduction).
• Growth is tax-free.
• Withdrawals in retirement are tax-free.

For younger teachers (many years to retirement), a Roth 403(b) is attractive for tax-free growth.

Optimal strategy: Contribute enough to traditional 403(b) to get the full employer match (employer matches go to traditional), then max out Roth 403(b) if available.

SIMPLE IRA for Small Nonprofits

Some small nonprofit employers use SIMPLE IRAs instead of 403(b)s:

• Contribution limit: $16,500 employee deferral in 2026.
• Catch-up (age 50+): $3,500.
• Lower administrative cost than 403(b).

If your nonprofit uses a SIMPLE IRA, the limits are lower than a 403(b), so consider supplementing with a backdoor Roth or personal IRA.

Teacher Retirement Taxation and State Considerations

Some states offer tax benefits for teacher pensions:

• Pension income exclusion: Some states don't tax pension income.
• 403(b) taxation: Federal tax applies; state tax varies.

If your state doesn't tax pension income, your retirement tax burden is lower (improves retirement readiness).

Example: Teacher retiring with $30,000/year pension + $20,000 from 403(b).

• State with pension income tax: Both are taxed.
• State without pension tax (like Illinois): Only the $20,000 is taxed.

Sources

• Internal Revenue Service. "403(b) Retirement Plans for Employees." IRS.gov.
• IRS Publication 571: Tax-Sheltered Annuity Plans (403(b) Plans).
• Department of Labor. "403(b) Plans for Nonprofits and Educators." DOL.gov.
• National Education Association (NEA). "Teacher Retirement Planning Guide." NEA.org.
• CFA Institute. "Retirement Planning for Educators."