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Archived noindex page. Kefiw's public focus is Property decision help.

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This older Kefiw page is kept for reference, marked noindex, and removed from the primary sitemap. The current Kefiw experience is focused on property decisions: cost, quotes, damage, buying, selling, owning, and packets.

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Shock Survival

Months of fixed debt service that survive a one-time shock expense.

Given your savings, a recurring loan payment, and a one-time shock expense, the Survival Window shows how many months of debt service remain. A Survival Gauge tracks 0–12+ months with a critical warning state under 3.

Part of: Saving & Spending Calculators

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SHOCK_SURVIVAL
Loan buffer — months debt service holds after a shock expense
$
$
$
10.4MONTHS012+
SURVIVAL WINDOW
STABLE
After the shock you retain $14,500. Covers 10.4 months of the $1,400 payment.
Post-Shock
$14,500
Annual Debt Service
$16,800
Shock vs Savings
19%
▸ METHODOLOGY
Survival = (Savings − Shock) ÷ Monthly Loan Payment. Captures the number of months fixed debt holds after a one-time unexpected expense. Under 3 months triggers a critical warning state. Inputs persist locally.

How to use

  1. Enter your total liquid Savings.
  2. Enter your recurring Monthly Loan Payment.
  3. Enter the Shock Expense (the one-time event you're stress-testing).
  4. Survival = (Savings − Shock) ÷ Monthly Payment.

Examples

$18k savings, $1,400/mo, $3,500 shock
($18,000 − $3,500) ÷ $1,400 = ~10.4 months. Stable band.
$10k savings, $1,800/mo, $6,000 shock
($10,000 − $6,000) ÷ $1,800 = ~2.2 months. Critical — under 3.

Before you act on the result

Finance tools depend on assumptions about income, expenses, time, rates, and behavior. They are planning aids, not investment, tax, legal, or credit advice.

Run a conservative version and a stress version before relying on a single number.

Next up

Know your base runway first — then overlay the shock.Runway Zero → Shock landed? Decide which bills to pay first.Bill Triage →

Frequently asked questions

› Why 3 months as the critical threshold? Troubleshooting

Under 3 months of debt service buffer is the conventional high-default-risk band. The gauge turns red and flags the warning state.

› Does this include income?

No — this is a pure buffer model. Assume the shock also cut off income; if income continues, add it to savings.

Tips & related reading

See the Saving & Spending Calculators hub →

Tips & how-tos

Relevant links

Related tools

Runway Zero

Calculate the exact month your cash runs out. Crisis toggle models a worst-case scenario with revenue zeroed.

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See when you'll hit your savings target and how extra contributions or growth change the timeline.

Mortgage Calculator

Calculate your monthly mortgage payment with taxes, insurance, HOA, and PMI. See total interest and what each 1% rate change really costs.