Calculator Inputs
3 columns on large screens, 2 on medium, 1 on mobile.Example Data Table
| Scenario | Income | Assets | Existing Coverage | Recommended New Coverage |
|---|---|---|---|---|
| Single earner, two children, mortgage | USD 75,000 | USD 30,000 | USD 150,000 | USD 690,000 |
| Dual income, smaller debts, higher assets | USD 110,000 | USD 140,000 | USD 250,000 | USD 520,000 |
| Near retirement, legacy focused | USD 95,000 | USD 250,000 | USD 300,000 | USD 240,000 |
Formula Used
- Income replacement PV (growing annuity):
PV = Pmt × (1 − ((1+g)/(1+r))^n) ÷ (r − g) - If r ≈ g: PV ≈ Pmt × n ÷ (1+r)
- Future cost adjustment: FV = Cost × (1+g)^t
- Present value discounting: PV = FV ÷ (1+r)^t
- Coverage gap: Need − (Assets + Existing coverage)
- Buffered recommendation: Gap × (1 + Buffer%)
How to Use This Calculator
- Enter age, retirement age, income, and replacement percent.
- Set inflation and expected return to match your assumptions.
- Add debts, mortgage payoff, and final expense estimates.
- Include education costs and when you expect to need them.
- Enter assets and any existing coverage you already have.
- Click Calculate to view results above the form.
- Download CSV or PDF for sharing and record keeping.
Coverage Gap Snapshot
Typical households replace 60–80% of gross income. With 70% replacement and a 6% return versus 3% inflation, the calculator discounts a growing income stream. For a 35 to 65 horizon, the present value of replacement can exceed eight to ten years of today’s income, depending on assumptions. Immediate needs such as debts, mortgage payoff, and final expenses are added on top.
Income Replacement Logic
Changing return and inflation by one point materially moves present value. If return drops from 6% to 5% while inflation stays 3%, the discount spread narrows and required coverage rises. When return and inflation are nearly equal, the method shifts toward an r≈g approximation to keep estimates stable. Conservative inputs are often better for planning longevity.
Education Funding Timing
Education is modeled as a future lump sum per child, inflated to the target year and then discounted back. Example: 25,000 today needed in 8 years at 3% inflation becomes about 31,674. Discounting at 6% yields about 22,330 present value per child. With two children, education funding adds roughly 44,660 to the total need.
Estate Transfer Stress Test
Estate tax is optional but useful for wealth‑transfer planning. The tool estimates taxable estate as max(estate minus exemption, zero) and applies a chosen tax rate. Adding a legacy target helps separate lifestyle protection from intentional inheritance. In the sample inputs, 12,000 debts + 180,000 mortgage + 15,000 final expenses + 25,000 legacy equals 232,000 before any tax.
Buffer And Premium Signals
A safety buffer of 5–15% can offset uncertainty in markets, expenses, and timing. After subtracting liquid assets and existing coverage, the remaining gap becomes the recommended new coverage. For instance, a 650,000 gap with a 10% buffer becomes 715,000. The premium signal is a rough educational estimate using age bands, term length, smoking status, and health class multipliers. Exported CSV and PDF outputs support review, documentation, and quick scenario comparisons later.
FAQs
What does “recommended new coverage” represent?
Recommended new coverage is the additional life cover needed after subtracting liquid assets, existing policies, and other support from total protection needs, then applying your selected safety buffer.
Why does the calculator use present value?
Present value converts future income and goals into today’s money using your return and inflation assumptions, so different needs can be compared consistently and summed into one coverage estimate.
How should I choose return and inflation inputs?
Use conservative, long‑term expectations. Many planners test a range, such as 4–7% return and 2–4% inflation, then pick a value that still protects your plan under less favorable conditions.
Is the premium estimate a real quote?
No. It is a simplified educational signal based on age, term length, smoker status, and health class. Insurers price using underwriting, medical history, riders, and state or market factors.
How do I model education costs more accurately?
Enter a per‑child cost in today’s currency and the years until funding is needed. If you expect multiple tuition years, increase the cost to reflect the total amount you want available then.
What if my spouse also earns income?
Lower the income replacement percentage, shorten the replacement years, or add “Other support” to reflect the spouse’s ongoing contribution. Re‑run scenarios to see how shared earnings reduce the coverage gap.