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How Big Should Your Emergency Fund Be?

Why the CFPB starts from your own past emergencies, where the three-to-six-months rule of thumb comes in, what counts towards the fund, and how to measure it in months of your actual spending.

By [Author name]2 min read

An emergency fund is cash set aside for unplanned expenses or a loss of income, so a car repair or a gap between jobs doesn’t turn into debt. There’s no single right size. The US Consumer Financial Protection Bureau (CFPB) suggests starting from the unexpected costs you’ve actually had, and building from a small cushion upwards. A widely used rule of thumb is three to six months of essential spending, more if your income is irregular or your household relies on one income.

This article is general information, not financial advice.

Starting Point: Your Own Emergencies

The CFPB’s guide to building an emergency fund says the amount you need depends on your situation, and suggests thinking about the most common unexpected expenses you’ve had and how much they cost, as a first goal. For people living paycheck to paycheck or with income that varies, it suggests saving small amounts regularly, which adds up, and keeping the money somewhere safe and easy to reach but not so easy that you spend it on non-emergencies.

Measuring It in Months

Counting the fund in months of spending makes it comparable from person to person and over time:

coverage = cash savings ÷ average monthly spending

Use your actual spending, not your income: €9,000 in savings covers three months for someone spending €3,000 a month, but only two for someone spending €4,500. Your average over the last few months is a more honest base than a budget.

What counts: money you can reach within days without a penalty or a loss, such as checking and savings accounts and cash. Investments that can fall in value, retirement accounts, and credit limits aren’t an emergency fund.

How Much Is Enough for You

  • Toward the lower end: a stable job, two incomes, low fixed costs.
  • Toward the higher end: self-employment or commission income, a single income, dependants, an older car or home that needs repairs, or a job market where finding work takes longer.
  • Paying off high-interest debt competes with saving; many people keep a small fund while clearing credit card debt, then build it up.

Following It in Kaizora

Emergency Fund Coverage is derived on Balances each day from the balances of your checking, savings, and cash accounts, divided by your average monthly Spending over the 91 days ending that day, leaving transfers between your own accounts out. Amounts in different currencies convert at each day’s exchange rate. It’s a component of the Kaizora Financial Health Score, which gives it full points at 6 months. A reference range at 3 months, set in months, flags days when your cushion falls below it. See Importing Bank Statements (CSV).

The Short Version

  • Start from the unexpected costs you’ve actually had, as the CFPB suggests.
  • Three to six months of spending is a common rule of thumb; more with irregular income.
  • Count only cash you can reach quickly, and measure it in months of your real spending.

Sources

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