These get lumped together as “just in case” money, but they're built for different kinds of risk.
Emergency fund
- Covers likely, lower-impact events
- Job loss, car repair, a medical co-pay
- You're the insurer — self-funded
- Fully in your control, no approval needed
Insurance
- Covers unlikely, high-impact events
- Death, disability, major illness
- Risk is transferred to an insurer
- Requires underwriting and a policy
An emergency fund can't reasonably cover something like a critical illness or the loss of a primary income earner — the numbers are too large to self-fund. And insurance isn't built for a flat tire — the premiums and claims process aren't designed for small, frequent costs.
In practice, most people need both: an emergency fund sized to your actual monthly expenses (the Emergency Fund Calculator can help), and protection sized to what your dependents would need to replace your income (that's what the Income Replacement Tool estimates).
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