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3, 6 or 12 Months? Size Your Emergency Fund by How Stable Your Income Is

By Smart Budget Sheets November 10, 2026
Sizing an emergency fund at 3, 6 or 12 months by income stability.

“Three to six months of expenses” is the classic rule, but the right number depends on how likely and how long a loss of income would be.

Start with expenses, not income

Add up the essentials you would still pay if income stopped: housing, utilities, food, insurance, minimum debt payments, transport. Skip things you would cut straight away. Example: $3,200 a month.

Pick the multiplier

  • About 3 months ($9,600): two stable incomes in the household, in-demand skills, few dependants.
  • About 6 months ($19,200): single income, or one earner in a cyclical industry, or a mortgage and children.
  • 9 to 12 months ($28,800 to $38,400): self-employed, commission-based, seasonal work, or a specialised role that takes long to replace.

Add a separate buffer for known risks: an old car, a home with an ageing roof, or a pet with health issues.

Build it in stages

  1. First $1,000 to $2,000: stops small surprises from going on a credit card.
  2. One month of essentials.
  3. The full target, while still taking any employer retirement match.

Keep it reachable

Hold it in an easy-access savings account at a separate bank from your everyday account, so it is available within a day or two but not visible every time you check your balance.

Free tools

General information, not financial advice. Figures are rounded examples.

#personalfinance #budgeting #savings
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