Emergency Fund Calculator
An emergency fund is the financial shock absorber that stops a layoff or surprise medical bill becoming a credit card spiral. Add up your essential monthly outgoings — rent or mortgage, property tax, insurance, utilities, food, transportation, health insurance — and the calculator returns a target buffer plus the monthly saving needed to get there.
How is this calculated?
Total essential monthly outgoings are multiplied by the target number of months (typically 3 to 6). Required monthly contributions are then calculated using the future value of an annuity formula at the chosen savings rate, accounting for any starting balance. The fund should sit in a high-yield savings account or money market fund — capital is FDIC-insured up to $250,000 per depositor per insured bank, and funds are accessible within days, not weeks.
Frequently Asked Questions
How many months should my fund cover?
Three months for a dual-income household with stable W-2 employment; six months if you're single-income, self-employed, a 1099 contractor, or in a sector with a long average job-search time. Twelve months is sensible for variable-income earners, those with high specialized skills, or anyone in a single-employer town.
Where should I keep the fund?
A high-yield savings account, money market fund, or short-term Treasury bills at an FDIC-insured bank or major brokerage. The priority is liquidity and capital security, not yield. Avoid CDs (early-withdrawal penalties), the stock market (volatility), and crypto (everything) for the core emergency buffer.
Should I pay down debt first or build the fund?
Build a starter fund of $1,000–$2,000 first, then attack expensive debt — credit cards above 15%–20% APR — then return to fully funding the emergency pot. Without any buffer, every unexpected expense lands on a credit card and undoes your debt progress. Always capture any 401(k) employer match first.
What counts as an essential outgoing?
Rent or mortgage, property tax, HOA, utilities, groceries, basic transportation, health and auto insurance premiums, minimum debt payments, child care, and any contractual subscriptions. Exclude streaming services, eating out, vacations, and gym memberships — in a real emergency these are the first things you'd cut.
Last updated: May 2026 · Rates sourced from IRS