Your car may suddenly break down, an unexpected medical bill may arise, or your income may temporarily decrease. These things can happen to anyone.
If you do not have money set aside, you may have to rely on a credit card or a loan, or sell long-term investments at a loss. An emergency fund is money kept separately to prepare for situations like these.
An emergency fund is not investment money intended to generate high returns. It is a financial safety net that helps you maintain your daily life and avoid taking on urgent debt when unexpected situations occur.
How Much Is an Appropriate Emergency Fund?
You may often hear that you should prepare an emergency fund equal to three to six months of living expenses. However, not everyone needs the same amount.
The amount you need depends on the stability of your job and income, whether you have dependents, your fixed expenses, your insurance coverage, and whether you have other sources of income.
If your income is stable and your household has another source of income, you may be able to start near the lower end of the range. On the other hand, if your income varies significantly or you are solely responsible for supporting your household, you may need a larger emergency fund.
Therefore, rather than copying the amount someone else has saved, you should calculate your emergency fund based on your own essential living expenses.
Step 1: Calculate One Month of Essential Living Expenses
The basis for calculating an emergency fund is not your total regular spending, but the expenses that are absolutely necessary to maintain your daily life.
Essential living expenses may include the following:
- Housing costs and minimum loan payments
- Electricity, water, gas, and communication bills
- Basic food expenses and household necessities
- Insurance premiums
- Transportation expenses required for commuting and earning a living
- Regularly required medical expenses
- Essential childcare and education expenses
Exclude expenses that can be reduced or stopped during an emergency, such as dining out, travel, hobbies, optional shopping, and new investments.
By reviewing your bank account and credit card statements from the past three months, you can calculate your essential living expenses more accurately.
Step 2: Decide How Many Months of Living Expenses You Need
Once you have calculated one month of essential living expenses, you need to decide how many months’ worth to prepare.
Three months’ worth can be a starting point if your income is relatively stable and you have another source of income or a reliable support network.
Six months’ worth can be considered if you want a larger safety net in case your income stops.
You may consider preparing more than six months’ worth in the following situations:
- If your monthly income varies significantly, as it often does for self-employed people or freelancers
- If one person’s income supports the entire family
- If you have dependents
- If your fixed expenses are high and difficult to reduce quickly
- If there is significant uncertainty regarding your health or employment
- If it may take a long time to find a new job
What matters is not automatically aiming for the largest possible amount, but reflecting your own risk factors in your goal.
Step 3: Calculate Your Emergency Fund Target
The calculation is simple.
Essential monthly living expenses × Number of months to prepare = Emergency fund target
For example, if your essential monthly living expenses are 2 million won, you can calculate your target as follows:
- Three months: 2 million won × 3 months = 6 million won
- Six months: 2 million won × 6 months = 12 million won
These amounts are not the correct answer for everyone. They are simply a basis for setting your own goal.
If it is difficult to prepare 12 million won all at once, a realistic approach is to set 1 million won as your first goal, one month of essential living expenses as your second goal, and three to six months of expenses as your final goal.
Step 4: Separate Emergency Savings From Planned Expenses
An emergency fund should be used for unexpected emergencies.
A loss of income, sudden medical expenses, or urgent repairs to a car or home that is essential to your daily life may justify using your emergency fund.
On the other hand, expenses whose timing and purpose can be anticipated—such as annual taxes or insurance premiums, scheduled car maintenance, travel, holiday expenses, and appliance replacement costs—are not emergencies.
These expenses should be prepared for through separate savings funds. If you continue using your emergency fund for planned expenses, you may not have enough money available when a genuine emergency occurs.
Step 5: Keep It Somewhere Safe and Easy to Access
For an emergency fund, safety and accessibility are more important than profitability.
As explained in our previous article— ‘What Is an ETF?’—ETFs are investment products whose prices can fluctuate. Because an ETF may be trading at a loss when you need the money, it serves a different purpose from the core portion of an emergency fund.
Products that restrict withdrawals for a long period or impose large penalties for early withdrawal may also be unsuitable for an emergency fund.
A separate checking or savings account that can be accessed relatively quickly when needed and carries a low risk of principal fluctuation may be suitable.
However, it is better to keep the money separate from the account you normally use for payments so that you are not tempted to spend it too easily.
Practical Ways to Build an Emergency Fund
Rather than waiting until you have a large amount of extra money, it is important to build your emergency fund consistently, starting with small amounts.
You can arrange for a fixed amount to be transferred automatically to your emergency fund account whenever you receive a salary or other income.
It can also help to move part of a bonus, tax refund, or unexpected additional income into your emergency fund.
If your income is irregular, you can save a fixed percentage of your income instead of saving the same amount every month.
If you use your emergency fund, there is no need to consider it a failure. The money was prepared to be used during a genuine emergency. You can replenish it after your situation becomes stable.
Should You Build an Emergency Fund Before Investing?
Investing involves the possibility of losing principal. If you need money urgently soon after investing, you may have to sell your assets regardless of market conditions.
Therefore, preparing a basic emergency fund first can reduce the possibility of having to sell long-term investments in a hurry.
If you plan to begin investing in ETFs after building your emergency fund, reading 7 Common ETF Mistakes Beginners Should Avoidcan help you understand the structure and risks of these products.
This does not mean that you must avoid all investing until your entire emergency fund is complete. You should determine your priorities by considering your debt, income, essential expenses, and level of risk together.
ConclusionConclusion
There is no single correct emergency fund amount that applies to everyone.
First, calculate one month of essential living expenses. Then decide how many months you need by considering the stability of your income, your dependents, and your fixed expenses.
If the final target feels overwhelming, you can begin with a small starter emergency fund and gradually increase it to one month, three months, and then six months of essential expenses.
The purpose of an emergency fund is not to grow your money quickly. It is to protect your daily life and long-term financial plans when something unexpected happens.
※ This article is provided for general financial education and is not investment or savings advice tailored to an individual’s financial circumstances. You should review the terms and risks yourself when choosing a financial product.
Frequently Asked QuestionsFrequently Asked Questions
Do I Need an Emergency Fund Equal to Six Months of Living Expenses?
Not necessarily. If your income is stable and you have another source of income, you may be able to start with a smaller amount. If your income varies significantly or you have dependents, you may consider a larger amount.
Can I Keep My Emergency Fund in an ETF?
An emergency fund should be available when needed without a loss of principal. Because the price of an ETF can fluctuate, it may be trading at a loss when you need the money. Therefore, an ETF generally serves a different purpose from the core place where emergency savings are kept.
Do I Have to Start Saving From the Beginning After Using My Emergency Fund?
Check how much remains and then set a new goal. An emergency fund is not money that must never be used. It is money meant to be used during a genuine emergency and replenished afterward.
References
FDIC, Saving for the Unexpected and Your Future
https://www.fdic.gov/consumer-resource-center/2025-01/saving-unexpected-and-your-future