The answer to "how much should I save?" depends entirely on when you want financial freedom. The math is deterministic: your savings rate, more than your income level, determines your financial timeline.
The research-based savings rates
| Savings rate | Years to financial independence (7% returns) |
|---|---|
| 5% | 66 years |
| 10% | 43 years |
| 15% | 37 years |
| 20% | 37 years* |
| 25% | 32 years |
| 30% | 28 years |
| 40% | 22 years |
| 50% | 17 years |
| 65% | 10 years |
*Starting from zero. Data from Mr. Money Mustache's foundational analysis of the 4% rule.
What "savings" includes (often miscounted)
- 401(k) contributions (including employer match)
- IRA contributions
- HSA contributions
- Mortgage principal payments (not interest — that's housing cost)
- Taxable brokerage contributions
- Emergency fund contributions
The minimum viable savings rate by goal
- Survive an emergency: Positive savings rate, any amount. Even 1% is better than 0%.
- Standard retirement at 65: 15% recommended by most financial institutions.
- Retire by 60: 25–30% minimum.
- FIRE by 50: 40–50%.
If you can't hit 15% yet
Start with 1%. Increase by 1% with each raise. Use automation so the decision is made once. Research shows that people who automate savings at even small percentages have dramatically higher savings rates over 10 years than people who save "what's left" after spending.
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About the author
Enrique 'Kike' Faúndez is an Information Systems and Management Control Engineer from Universidad de Chile, with master’s degrees in Finance from Universidad de Chile and Industrial Engineering from Pontificia Universidad Católica de Chile. He has 15+ years of experience in regulated financial services across finance, operations, and digital product development. He founded CashControlly in Santiago, Chile, with the conviction that personal financial control should not be a privilege, but an accessible and well-designed tool.
- Master's in Finance, Universidad de Chile
- Master's in Industrial Engineering, Pontificia Universidad Católica de Chile
- Information Systems and Management Control Engineer, Universidad de Chile
- AI and ITIL certifications
- 15+ years in regulated financial services
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