How to Invest Excess Cash: Making a Plan Focused on Financial Stability

Having extra funds is a great problem to have. However, deciding what you should do with that excess cash can be tricky.

Determining the best place to put the money or how to invest extra cash can be overwhelming. In some cases, learning how to use your money effectively can be so daunting that you simply do nothing with your extra cash.

Unfortunately, this is often the worst way to handle extra money. Why? Because you are not putting it to work for you.

It can be tempting to just buy something else for your home or “treat yourself,” but that often is not the wisest use of your extra funds. Reasonable luxuries and indulgences are fine, but they need to be put in the larger context of your income and savings, with long-term stability as the top priority.

If you want to be smart with your money, you might want to use it for savings, investments, or to pay off debt. To “invest” excess cash in certain situations isn’t always a traditional investment in the literal sense but an investment in your overall financial security.

Your decision will depend on your unique personal and financial situation.

What is a Cash Surplus?

A cash surplus or surplus cash flow occurs when the cash on hand exceeds your budgeting needs. That surplus can occur over a few weeks or even over a period of a few years. While you commonly hear cash surpluses as part of business operations, they certainly occur in personal finances as well.

Excess cash generally appears in one of two ways: over time or suddenly. Spare money can appear over several weeks, months, or years of simply spending less than what you are earning. After several periods like this, you may take a look at your bank account and realize you have a chunk of money sitting in that account, often gaining very little interest.

Extra cash might also appear because of a gift, inheritance, legal settlement, or bonus from work. In this type of situation, you may suddenly have extra cash instead of watching it build over time.

No matter how you gain a cash surplus, knowing when and how to invest excess cash is vital. Even if you grow your emergency fund or increase personal insurance coverage — without making a traditional investment — doing so wisely is ultimately an investment in yourself and your family’s well-being.

Reviewing Your Current Budget: Why Do You Have Excess Cash?

A cash surplus occurs when your income is more than what you need to cover your expenses. Regardless of whether this money built up over time or it appeared suddenly, the first thing you should do after you realize you have some excess cash is to take a look at your budget.

Check for Missing Payments

One potential issue that might arise if you have extra cash is that you forgot to make a payment on an outstanding obligation. Simply forgetting a payment is common, but you should also be sure that your recurring payments are still being made as they should be.

In some cases, recurring payments that need to be paid, such as the mortgage or car payment, might not go through. This is common if you received a new credit card or your bank account information has changed (for example, through a bank merger).

Before you get excited about using your newfound surplus, be sure that you have not already earmarked that money for something else.

Review Upcoming Expenses

Reviewing upcoming expenses can be an excellent way to save money and get ahead of your payments.

For example, are there savings that you can obtain by paying expenses now instead of waiting until they come due? Spending some money now to ultimately pay less in the long term is a great way to invest excess cash, even though you’re not investing in the technical sense.

Car insurance is a good example of this type of expense. In many cases, if you are currently paying your car insurance monthly, you can often get a discount if you agree to pay for coverage for six months or a year at a time.

If you suddenly realize you have extra cash, agreeing to pay upcoming bills in advance in exchange for a discount can save you money, especially on items you will have to pay anyway.

Just be sure that you receive something in exchange for early payment, like a reduced rate or discount. If you don’t gain a benefit from early payment, putting the money in a high-yield savings account instead can provide a return, as CNBC explains.

Pay Down Outstanding Debt

If you have outstanding debt, you might also want to make some advance payments on those obligations, including credit card payments or car loans.

It’s important to recognize the benefit of paying down debt early, which differs from early payment of bills. Debt often accrues interest that you eventually need to pay, while bills for utilities and services don’t generally involve interest. This is another instance where spending more money in the short term can lead to a reduced overall cost in the long term.

Taking care of those outstanding debts with your extra money can be a great way to save on interest and fees.

Increase Your Giving

One sometimes overlooked aspect of budgeting involves examining how much you are giving to charity or other causes.

Suppose you have a sudden and significant cash surplus. In that case, you might want to consider donating a portion of it to cut down on your tax obligations associated with receiving the payment. While the tax reduction value of charitable donations decreased following the passing of the Tax Cuts and Jobs Act (TCJA), that law did not eliminate the benefits of charitable giving.

Your financial and tax professional can help you decide if this type of situation applies to you and the way to donate from a tax perspective.

Review Your Emergency Fund

Having an emergency fund or rainy-day fund that you can access quickly is always a good idea.

You can’t predict every possible emergency or when it will arise. Having an emergency fund means you’re prepared when an unpredictable expense appears. Easy access to funds specifically set aside for that purpose means there’s one less thing to worry about in what is often a stressful situation.

This money should sit in a savings account or money market account that you can reach fast. That way, there is no delay between the time you need the money and the time you can get the money.

A good rule of thumb is to have three to six months of expenses saved in a high-yield savings account or money-market account. The more unstable your employment or income, the more your emergency fund should lean toward the six-month expenses mark.

Review Your Risk Management Plan

You might also want to take this time to review your risk management plan as well, including things like auto insurance, life insurance, and disability insurance. If you need more coverage, you can use your extra funds to get the coverage in place that you need.

Alternatively, if your surplus cash is significant, you might want to consider using those extra funds to replace a specific type of insurance. For example, if you have $100,000 in a money market account, you might want to consider dropping or decreasing your auto insurance coverage if that is all the coverage you have in place.

How Should I Use My Cash Surplus?

The three most common ways that individuals use excess cash (apart from spending the funds outright) include:

• Paying down existing debt
• Investing for the future
• Saving for a rainy day

The best use of these funds for you will vary a great deal based on personal preference and financial goals.

In general, it is a good idea to pay down your debt first. However, if you have an extremely low interest rate on a debt obligation and you can get a better interest rate on an investment, it might make sense to invest rather than pay off your debt. Keep in mind that these situations are rare—in most cases, paying off your debt is a wise use of excess cash.

Where to Put Cash Now: Consider Your Personal Financial Goals

If you have reviewed your budget, made adjustments as necessary, and still have money left over, you might wonder: Where is the best place to put the money? How do I invest the extra money, and where should I invest it?

Short-Term Goals: Anticipating Expenses

If you plan to use the funds within the next 12 months, it is probably a good idea to keep the money liquid. Using a money market account or high-yield savings account will allow you to have access to the funds while also earning a return better than would be possible with a checking account or keeping physical cash in a safe location.

Potential short-term uses for these funds might include things like:

• Saving up for an expense that you know (or suspect) is coming, like needing a new refrigerator or washing machine
• Education expenses for the upcoming year
• Home remodeling or repairs
• Saving for an upcoming trip or vacation
• Big life events like weddings or new additions to the family

Waiting to use these funds for something that you know you need to finance in the near future can be a great way to save on interest expenses.

Medium-Term Goals: Investing Excess Cash and Other Options

If you have considered all of your upcoming expenses and cannot think of something that you might use the money for in the next 12 months, you might want to consider your “medium-term” goals. These goals are a few years out, and they might be specific, or your goal might simply be to get a higher return on your extra money.

Investing is a great option when you have at least two years to watch the money grow. You can work with a financial professional to develop an investment plan that works well for your risk tolerance and overall goal for these funds. With proper planning, you can also have access to this money when and if you need it.

Another option that might be considered a “medium-term” investment is to open a health savings account. An HSA account works in conjunction with a high-deductible health plan. You can save money to cover healthcare expenses, and those savings will grow tax-free.

You can contribute up to $4,300 in 2025 for individuals or $8,550 for family coverage as of June 2025. If you are over the age of 55, you can also use “catch up” contributions of $1,000 per year.

These funds do not have to be used within a certain period. So, you can use them immediately if needed. If you don’t have pending medical expenses, you can spend your HSA funds over the next few years or even well into retirement.

Long-Term Goals: How to Invest Excess Cash for Retirement

You can often get the most bang for your buck if you commit to investing it over the long term. Investment strategies that are focused on long-term goals (like retirement planning) will usually have a strong rate of return over time,

Some examples of long-term investments that you might want to consider include:

• 401(k) accounts (including taking full advantage of your employer’s match program)
• Roth IRA accounts
• Traditional IRA accounts

Working with a financial planner is one of the ways to determine how you should use your spare money and invest excess cash effectively.

A dependable fiduciary financial advisor will work with you to learn your goals and develop a plan for you to meet them. There is no general rule or piece of advice that can tell you how to invest extra cash in the best way possible relative to your unique financial situation.

A fiduciary financial advisor has the experience and knowledge needed to review your finances, learn about your goals, and develop a holistic financial strategy that helps you address your needs and reach your goals.

The team at Dechtman Wealth Management is ready to work for you. Contact us for more information or to schedule an appointment.

[1] Quality of content based on readability, SEO, tone of voice, and originality. Our tool does not include originality scores, as our writers are trained to produce only original pieces of content. If any Additional Keywords are listed, these were recommendations from our content tool. Though the tool always provides recommendations, we may not always include them if they do not fit your brand, the topic, or the content goal. You will see varying amounts of Additional Keywords across your content pieces. The primary indicator of success should be the Aggregate Score above.

[2] Ease with which a reader can understand a written text, measured with the Flesch-ease score formula. The higher the score, the easier the text is. The target readability is an average of your top 10 Google competitors.

[3] Content factors affecting readability.

[4] Title factors affecting Google performance and clickability.

[5] Measurement of how the message is being conveyed through word choice, order, rhythm, and pace.