Comprehensive Guide
Learn more in our Insurance Guide.
How it works
self-insurance fund calculator takes your inputs and produces annual savings vs premium, self-insurance fund balance, years until self-insured. Calculate how much to save in a self-insurance fund instead of paying premiums. You provide 5 inputs: Current Annual Premium (currency, in dollars) (default: 2000 dollars); Expected Annual Loss (currency, in dollars) (default: 500 dollars); Emergency Reserve Needed (currency, in dollars) (default: 10000 dollars); Investment Return % (percent, in percent) (default: 7 percent); Savings Period (years) (number) (default: 10). The calculator returns 3 outputs: Annual Savings vs Premium (the primary result); Self-Insurance Fund Balance (a secondary output); Years Until Self-Insured (a secondary output). Insurance is the mathematics of rare but catastrophic events. The right coverage amount depends on your assets, income, dependents, and risk tolerance — not on rules of thumb. This tool computes the actual figures so you can compare premiums against the expected value of protection. With the default values, annual savings vs premium is computed from the interaction of every input field — change any one of them and the result updates immediately, so you can stress-test different scenarios without re-entering the whole form. Adjust the inputs to match your real financial situation. The defaults are realistic starting points, but every person's circumstances differ — your actual income, expenses, rates, and timelines will produce a different answer. Use the tool iteratively: start with the defaults, then change one variable at a time to see which factor has the largest impact on your outcome.Tips
- Start with the default values to see a baseline result, then change one input at a time to understand which factor matters most for your outcome.
- Replace every default with your actual number — estimates and rules of thumb produce estimates, not answers. Pull your real figures from pay stubs, statements, or account dashboards.
- Insure against catastrophic losses, not minor ones. The right deductible is the highest amount you could cover from savings without financial distress.
Frequently asked questions
When to self-insure?
When loss is affordable (<10% savings), probability is low, and you have reserves. Never self-insure catastrophic risks.
What does the self-insurance fund calculator calculate?
It takes current annual premium, expected annual loss, emergency reserve needed, investment return %, savings period (years) as inputs and computes annual savings vs premium, self-insurance fund balance, years until self-insured. The primary output is annual savings vs premium. Calculate how much to save in a self-insurance fund instead of paying premiums.
How accurate are the calculator results?
The math is exact — the same formulas a financial professional would use by hand. The precision of the output depends entirely on how realistic your inputs are. Use your actual numbers rather than estimates when possible. The defaults are reasonable starting points, but your real income, rates, and timeline will produce a different result.