Buhata

Home › Life Terms

Household money and budgeting

Rainy day fund

Savings for unplanned costs. Some banks mean a smaller cushion for minor surprises; the Federal Reserve's survey uses it as another name for emergency savings.

What It Means

A rainy day fund is money set aside for costs you didn't plan for. (1) Some banks' guides, Chase's among them, use the name for a smaller cushion that covers minor or midsize surprises, such as a new dishwasher, and keep "emergency fundEmergency fundMoney set aside only for unplanned costs, like a car repair, a medical bill or a lost paycheck, kept where you can reach it quickly. See more" for large shocks like months without work. (2) Other sources treat the two as the same savings: the Federal Reserve's survey of household finances asks about emergency savings and rainy day funds in a single question.

Try It: Size a Rainy Day Fund From Last Year's Surprises

Add up last year's smaller surprises to set a rainy day target. Example numbers; change any of them.

Rainy day target$1,550
Still to save$1,250
Months to get there13

Large shocks, like months without pay, call for a bigger emergency fund sized in months of expenses.

How It Sounds at Home

  • "Put it in the rainy day fund."
  • "We've got a little saved for a rainy day."
  • "The new tires came out of the rainy day money."

The Breakdown

Worked example. A household looks back at last year's smaller surprises (example numbers):

Surprise costAmount
New tires$600
Washer repair$400
Vet bill$300
Other$250
Target$1,550

They have $300 put aside already and can add $100 a month, so the $1,250 still to go takes 13 months. At $150 a month it takes 9.

What the result means. Sizing a rainy day fund to last year's small surprises gives you a number grounded in your own life. The Consumer Financial Protection Bureau suggests looking at past surprise costs when you set a savings goalSavings goalA specific amount you plan to save by a set date for one purpose, which turns into a monthly or per-paycheck amount to set aside. See more. Once the fund is full, the next flat tire comes out of it instead of the grocery budgetBudgetA plan for a set period, usually a month, that lists the money you expect to receive and how you'll spend or save it. See more, and you refill it afterward. A job loss or a major repair is a different scale, and that's the job of an emergency fund measured in months of essential expenses.

One fund or two. Chase's guide treats the rainy day fund and the emergency fund as separate pots. Keeping one larger fund works too, as long as you know what share of it is meant for the big shocks.

Good to Know

In the Federal Reserve's report on household finances in 2025, published in May 2026, 55% of adults said they had emergency savings or a rainy day fund that would cover three months of expenses, the same share as in 2024 and down from 59% in 2021. Its survey treats the two names as one fund. The CFPB suggests keeping emergency savings in a dedicated account at a bank or credit unionCredit unionA not-for-profit financial cooperative owned by its members, offering accounts and loans to people within the field of membership its charter sets. See more, apart from everyday spending, and the same works for a separate rainy day fund.

FAQ

What's the difference between a rainy day fund and an emergency fund?

Chase describes a rainy day fund as the smaller one, for midsize surprises like a new dishwasher, and an emergency fund for big costs like months of unemploymentUnemployment benefitsWeekly payments from a state's unemployment insurance program to eligible workers who lose a job through no fault of their own, with rules set by each state. See more or a new roof after a storm. Other sources, including the Federal Reserve's household survey, use the two names for the same savings.

How much should be in a rainy day fund?

There's no official number. Adding up last year's smaller surprise costs gives a practical target. For large shocks, many people size an emergency fund in months of essential expenses instead.

Do I need both a rainy day fund and an emergency fund?

It depends on how you like to organize savings. Chase's guide describes them as two separate funds, and one fund can also do both jobs if you track what comes out of it and refill it.

Do It in Buhata

Jars

Make a Jar called "Rainy day" in a Space with Premium, set its target to last year's surprise costs, and record what you've put aside.

Open Buhata

Related Terms and Categories

  • Emergency fund

    Money set aside only for unplanned costs, like a car repair, a medical bill or a lost paycheck, kept where you can reach it quickly.

  • Sinking fund

    Money set aside in small, regular amounts for a known future cost, so the bill doesn't land on a single paycheck.

  • Sinking fund vs emergency fund

    A sinking fund saves for costs you can put on a calendar; an emergency fund covers costs you can't predict, like a job loss or an urgent repair.

  • High-yield savings account

    A savings account paying a variable interest rate that's generally higher than a traditional savings account's, often offered by online banks.

  • Savings goal

    A specific amount you plan to save by a set date for one purpose, which turns into a monthly or per-paycheck amount to set aside.

Household money and budgeting

Sources

Chase, "Rainy Day Funds vs. Emergency Funds"; U.S. Bank, "Save for a rainy day: 5 myths about emergency funds"; Federal Reserve Board, "Economic Well-Being of U.S. Households in 2025" (May 2026), Savings and Investments; Consumer Financial Protection Bureau, "An essential guide to building an emergency fund"

Last updated .