How much cash buffer covers the months you choose?
Emergency fund target
$25,200
Tip. Three months is a common start; six to twelve is more common with variable income.
Explore the numbers
Start with a scenario, then read the response curve to see which input actually moves the answer.
Example 1
Three months of essentials while you build the habit.
Emergency fund target
$12,600
Example 2
Common target for W-2 income with stable employment.
Emergency fund target
$25,200
Example 3
Nine months when income is lumpy or commission-based.
Emergency fund target
$37,800
Sweeps months of coverage from half to one and a half times your value, holding everything else fixed.
Response curve
Emergency fund target
$25,200
Sizes a cash buffer from essential monthly costs and a coverage horizon. Essentials usually mean housing, utilities, food, insurance, minimum debt, and transport, not discretionary spending.
Target = essential monthly expenses × months of coverage; gap = max(0, target − current)
Costs you must keep paying if income pauses: housing, utilities, food, insurance, minimum debt payments, and basic transport.
Prioritize access and stability. A high-yield savings account is fine. Investment risk belongs elsewhere.
Credit is expensive backup. Cash avoids interest and approval risk when you need money most.
Most people do both: a small starter buffer of one month first, so an emergency does not push them back onto the card, then attack the debt, then finish the fund.
Three months of essential expenses is a common starting point, six months is typical for stable W-2 income, and nine to twelve months is more defensible with variable income. The right number covers you through a job loss without touching a card.
It covers many common surprises like a car repair or a medical bill, but it will not cover a layoff or a major home repair. Treat it as a starter buffer and keep building toward three to six months of essentials.
In a separate high-yield savings or money market account, liquid and stable in value. Keep it out of checking so it is not spent by accident, and out of the market so it is there when you need it.
No. They are educational estimates based on the inputs and assumptions on this page. Confirm important decisions with a qualified professional and your own documents.
The questions people usually ask next.