Financial Independence FIRE Calculator and Roadmap

Build a personalized FIRE (Financial Independence, Retire Early) plan with savings rate calculations, investment projections, withdrawal strategies, and milestone tracking for your target retirement age.

Prompt Template

You are a financial independence planning expert. Build a personalized FIRE (Financial Independence, Retire Early) roadmap:

Current age: [your age]
Target FIRE age: [when you want to be financially independent]
Annual gross income: [current income]
Annual expenses: [current annual spending]
Current savings/investments: [total across all accounts]
Monthly savings capacity: [how much you can save per month]
Risk tolerance: [conservative / moderate / aggressive]
Preferred FIRE variant: [Lean FIRE / Regular FIRE / Fat FIRE / Barista FIRE / Coast FIRE]
Country/Tax jurisdiction: [for tax-advantaged account recommendations]

Provide:

1. **FIRE Number Calculation**
   - Annual expenses × 25 (4% rule) and × 33 (3% rule for safety)
   - Adjusted for expected lifestyle changes in retirement

2. **Current Savings Rate Analysis**
   - Your savings rate percentage
   - How it compares to FIRE benchmarks
   - Years to FIRE at current rate vs. optimized rate

3. **Investment Strategy**
   - Recommended asset allocation by account type
   - Tax-advantaged vs. taxable account priorities
   - Specific index fund/ETF suggestions (low-cost)

4. **Milestone Timeline**
   - Year-by-year projection table (balance, contributions, growth)
   - Key milestones: Coast FIRE number, Lean FIRE, Full FIRE

5. **Withdrawal Strategy**
   - Roth conversion ladder or other bridge strategies
   - Sequence of account withdrawals
   - Tax optimization in early retirement

6. **Risk Analysis**
   - What if markets drop 30% year one of retirement?
   - What if expenses increase 20%?
   - Backup plans and guardrails

**Disclaimer:** This is educational modeling, not financial advice. Consult a fee-only financial advisor for personalized guidance.

Example Output

# Your FIRE Roadmap

Age 32 → Target: Age 45 (13 years)

FIRE Number

- Annual expenses: $48,000

- **FIRE Number (4% rule):** $1,200,000

- **FIRE Number (3% safe):** $1,600,000

- Recommended target: $1,400,000 (3.4% withdrawal rate — balanced)

Current Position

- Income: $95,000 | Expenses: $48,000 | Savings: $47,000/yr

- **Savings rate: 49.5%** ✅ (FIRE benchmark: 50%+)

- Current investments: $185,000

- Years to FIRE at current rate: ~12.8 years (age 44.8) 🎯

Milestone Timeline

| Year | Age | Contributions | Growth (7%) | Balance | Milestone |

|------|-----|---------------|-------------|---------|-----------|

| 2026 | 32 | $47,000 | $12,950 | $244,950 | — |

| 2028 | 34 | $47,000 | $23,400 | $362,350 | — |

| 2030 | 36 | $47,000 | $35,100 | $497,450 | Coast FIRE ✅ |

| 2033 | 39 | $47,000 | $56,200 | $750,650 | Lean FIRE ✅ |

| 2037 | 43 | $47,000 | $85,400 | $1,205,050 | FIRE (4%) ✅ |

| 2038 | 44 | $47,000 | $95,800 | $1,395,850 | Full FIRE 🎉 |

Investment Strategy

Tax-advantaged accounts (max first):

1. 401(k): $23,000/yr → Vanguard Total Stock Market (VTSAX)

2. Roth IRA: $7,000/yr → Vanguard Total International (VTIAX)

3. HSA: $4,150/yr → Keep invested, don't reimburse until retirement

Taxable brokerage (remainder):

- $12,850/yr → 80% VTI / 20% VXUS for tax efficiency

Risk Scenario: 30% Market Drop Year 1

- Portfolio drops to $977,000

- **Guardrail:** Reduce spending to $40,000 (Lean FIRE level) for 2 years

- **Alternative:** Part-time consulting at $2,000/month bridges the gap completely

- Historical recovery: Markets have recovered from every 30%+ drop within 3-5 years

Tips for Best Results

  • 💡Your savings rate matters more than investment returns in the early years — focus on the gap between income and spending before optimizing portfolio allocation
  • 💡Build your FIRE number on your ACTUAL spending, not a fantasy budget — track expenses for 3 months before running the calculation
  • 💡Coast FIRE is the most underrated milestone — once you hit it, the pressure drops dramatically because compounding does the rest even if you stop contributing

Frequently Asked Questions

What is the Financial Independence FIRE Calculator and Roadmap prompt?

Build a personalized FIRE (Financial Independence, Retire Early) plan with savings rate calculations, investment projections, withdrawal strategies, and milestone tracking for your target retirement age. It's a free ChatGPT prompt template from our Personal Finance collection — copy it, fill in the bracketed variables, and paste it into your AI tool.

Which AI tools work with this prompt?

It's written and tested for ChatGPT, Claude and Gemini. Any AI assistant that accepts free-form text prompts will handle it well.

How do I customize this ChatGPT prompt?

Replace the bracketed variables — such as [your age], [current income], [current annual spending] — with your own details before running it. Your savings rate matters more than investment returns in the early years — focus on the gap between income and spending before optimizing portfolio allocation

Is this prompt free to use?

Yes. Every prompt on PromptAtlas is free to copy, customize, and use — no signup required.