Teacher Coast FIRE: When Can You Stop Contributing?

FIRE Number

$1.1M

Target Retirement Age

Years to FIRE

Monthly Savings Needed

$613

Teachers have a secret Coast FIRE weapon: the defined benefit pension. A teacher with 25 years of service earning $65K might receive $35,000–$45,000/year in pension income at 65. If that pension covers $2,500–$3,000/month, the portfolio only needs to cover the remaining $500–$1,000/month gap — requiring just $225K–$600K in invested assets. This dramatically lowers the Coast FIRE threshold.

Without factoring the pension, the Coast FIRE number at 43 for a $3,500/month retirement budget is $237K. That's the portfolio target before contributions stop. But every dollar of pension income reduces this by $300 (25 × $1/month = $300 in required portfolio). Most teachers with full pension vesting effectively reach Coast FIRE much earlier than the portfolio-only calculation suggests.

For teachers, the 403(b) landscape requires careful navigation. Many teacher 403(b) platforms are dominated by insurance-company annuity products with 1.5–3% annual fees — among the most expensive investment vehicles available. Seek out providers offering low-cost index funds: Vanguard, Fidelity, or TIAA-CREF's CREF Stock/CREF Equity accounts. The difference between 0.05% and 2% fees on $237K over 22 years of compounding is approximately $357K.

Teachers targeting Coast FIRE should model pension vesting carefully. Most state pension systems have 5–10 year vesting cliffs (you get nothing if you leave before vesting). Once vested, each additional year of service meaningfully increases your eventual pension benefit. Teachers often face a Coast FIRE decision at the 20-year mark: stay for a larger pension (which lowers the required portfolio) or leave teaching and redirect all savings to the portfolio.

Frequently Asked Questions

How does a teacher's pension reduce the Coast FIRE number?expand_more

Each $1,000/month in pension income = $300,000 less needed in your investment portfolio (at 4% withdrawal). A teacher pension of $2,500/month = $750,000 off your FIRE number. If your spending is $3,500/month and the pension covers $2,500, you only need a portfolio generating $1,000/month = $300K in invested assets. The coast number for $300K at age 43 is approximately $68K.

What 403(b) provider should a teacher use?expand_more

Look for providers offering low-cost index funds: Vanguard, Fidelity, TIAA-CREF (CREF Stock index fund), or Security Benefit NEA DirectInvest. Avoid any 403(b) annuity product with surrender charges or fees above 0.5%/year. If your district only offers high-fee providers, file a complaint with HR and use a Roth IRA ($7,000/year) as your primary vehicle instead.

When should a teacher stop contributing to their 403(b)?expand_more

A teacher with pension vesting (20+ years of service) providing $2,500+/month in eventual income may reach their adjusted Coast FIRE threshold earlier than expected. Calculate your pension income, subtract from monthly spending need, multiply remaining gap by 300 to get your portfolio target. Once your 403(b) + other accounts reach that adjusted target, you've reached Coast FIRE even on a teaching salary.

Should teachers count their pension in their Coast FIRE calculation?expand_more

Yes — a vested pension is a guaranteed income stream worth including. For Coast FIRE, calculate your portfolio-only Coast number (as above), then reduce your FIRE target by 25× your expected annual pension to find the adjusted, much smaller portfolio you actually need. Most teachers with full pension vesting have a much lower Coast FIRE threshold than they realize.

Can a teacher reach Coast FIRE before 30 years of service?expand_more

Often yes. A teacher with 20 years of service earning a $28,000/year pension ($2,333/month) against a $3,500/month spending target needs only $350K from their portfolio. The coast number for that adjusted amount at age 48 (20 years of service) is approximately $111K — very achievable on a teacher's 20-year savings history.

Frequently Asked Questions

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