How to Build an Emergency Fund

An emergency fund is money set aside for unplanned costs and kept where you can reach it quickly. To build one, choose a first target, move money into a separate account on a schedule and add to it as your budget allows.

Published November 6, 2026.

What is an emergency fund

An emergency fund is savings meant for the unexpected. Think of a car repair, a medical bill or a gap between paychecks. The Consumer Financial Protection Bureau’s (CFPB) classroom activity on emergency savings describes the purpose as dealing with “unexpected challenges and unplanned expenses.” That definition calls for no special kind of account. The job you give the money is what makes it an emergency fund.

The Federal Reserve tracks how households are doing. Its report on 2025 came out in May 2026, from a survey fielded October 17 to 28, 2025. Sixty-three percent of adults said they would cover a hypothetical $400 emergency expense using cash, savings, or a credit card paid off at the next statement. That share was unchanged from the previous three years but down from 68 percent in 2021. Twelve percent said they would be unable to pay by any means.

How much should you have in an emergency fund

The Fed’s survey does not set one correct amount. It uses two yardsticks instead. One is whether a person could cover a $400 surprise. The other is whether they have a rainy day fund covering three months of expenses. Both are measures of preparedness, not rules. The Fed adds that its $400 measure, its three-month measure and a third measure on retirement savings were all down from 2021.

The same survey asked adults for the largest emergency expense they could handle right now using only savings. Here is how the answers split, from the Fed’s table 26.

Largest emergency expense covered by savings alone	Share of adults
Less than $100	18%
$100 to $499	12%
$500 to $999	9%
$1,000 to $1,999	11%
$2,000 to $4,999	12%
$5,000 or more	38%

After years of watching people work on household budgets, I notice the same stall. The target number scares them more than the saving does. Six months of expenses sounds like a mountain, so the account never gets opened. The table is a useful reality check. Seventy percent of adults said they could pay at least $500 from current savings. Eighteen percent could not reach $100.

To turn any benchmark into your own number, start with what a month costs you. Add up rent or a mortgage payment, utilities, food, transportation and minimum debt payments. That monthly total is what phrases like “three months of expenses” are measured against. Our piece on reducing monthly bills has ideas for trimming them.

The Fed’s report also says spending less than income on a regular basis is one way to build an emergency fund. People who did so more often were more likely to report having a rainy day fund.

How to start an emergency fund

Savings sit at the core of the CFPB’s Start Small, Save Up initiative, according to its 2020 research report on emergency savings strategies. That report sorts the research into three groups. Savings products give people a ready place to save. Financial incentives give them a reason to save. Behavioral approaches build a choice environment that makes saving easier.

Those three groups translate into three plain questions. Where will the money sit, apart from everyday spending? What will prompt you to add to it? How will the habit survive a busy month? Moving money on a schedule is the automation idea in our list of banking adjustments. It removes the monthly decision.

The CFPB’s financial well-being questionnaire has ten questions. One of its statements is “I could handle a major unexpected expense,” which makes it a quick way to take stock.

The two Fed yardsticks can serve as milestones, a $400 cushion first and three months of expenses later. They are benchmarks, not requirements. Your own bills and income set the real target.

How to build an emergency fund on a low income

The CFPB’s 2022 research on emergency savings, based on its Making Ends Meet survey, says savings help consumers weather shocks. The report compares consumers’ credit and debt profiles, ability to meet obligations and financial well-being by their level of emergency savings. It also says that “financial constraint resulting from obligatory expenses and insufficient income” can impede saving. In plain terms, when bills take most of the paycheck, there is little left to set aside.

The Fed’s executive summary for 2025 adds that financial well-being declined for low-income families, young adults and Black adults. Measures of savings and credit use were similar to a year earlier. Stress is part of this picture too. Our piece on budgeting to cut stress covers how money worries build when there is no cushion.

No trick fits every budget. A small, regular amount kept apart from everyday spending still counts toward a first milestone. If bills already take all of your income, a licensed financial professional can look at the whole picture with you.

Where to keep your emergency fund

Where the money sits changes how it is protected, and insurance is the part with firm numbers. The Federal Deposit Insurance Corporation (FDIC) says deposit insurance covers $250,000 per depositor, per FDIC-insured bank, for each account ownership category. Covered deposits include checking accounts, savings accounts, money market deposit accounts and time deposits such as certificates of deposit. Stock and bond investments, mutual funds, annuities and crypto assets are not covered.

At a credit union, National Credit Union Administration (NCUA) share insurance is also $250,000 per member-owner for single-owner accounts. It covers share draft accounts, share savings accounts and share certificates. NCUA says federally insured credit unions must display its official sign. It also points to its Credit Union Locator, because some state-chartered credit unions have private insurance that the federal government does not back.

FDIC’s BankFind tool, which its deposit insurance page points to, lets you confirm that a bank is FDIC-insured. The CFPB also publishes a checklist for opening a bank or credit union account. It covers what to gather and which choices to compare. Fees, minimums and withdrawal rules differ by institution and change, so check the account’s own disclosures.

Should you pay off debt or build an emergency fund first

There is no single rule for everyone. The order depends on details only your own accounts show. Those include the interest rate on the debt, how soon payments are due and how steady your income is.

The Fed’s data does show what happens without a cushion. Among adults who would not cover a $400 expense with cash or its equivalent, the most common answer was to put it on a credit card and carry a balance. Others would borrow or sell something, and some said they could not pay at all. That is a trade-off worth running through with a licensed financial professional, who can see your balances and rates.

Frequently asked questions about saving for emergencies

What counts as an emergency expense?

The CFPB describes the aim as handling unexpected challenges and unplanned expenses. The Fed’s survey uses a hypothetical $400 emergency expense. Beyond that, what counts is a personal decision. A licensed financial professional can help you set your own rules.

Is money kept for emergencies insured?

It can be, depending on where it is held. FDIC insurance covers $250,000 per depositor, per insured bank, per ownership category. NCUA covers $250,000 per member-owner for single-owner accounts at federally insured credit unions. FDIC does not cover stock and bond investments or mutual funds.

Is a rainy day fund the same as an emergency fund?

The Fed’s report discusses both terms in one passage on savings for unexpected costs. Its three-month measure is worded as a rainy day fund. The idea is the same: money set aside for the unexpected.

How many adults could cover a $400 expense?

In the Fed’s report on 2025, 63 percent said they would cover a hypothetical $400 emergency expense with cash or its equivalent. That includes savings and a credit card paid off at the next statement. Twelve percent said they would be unable to pay by any means.

This article is for general information only and is not financial advice. Talk to a licensed financial or tax professional about your own situation.