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When you open an individual retirement account (IRA) or 401(k), you can generally choose from a variety of different types of investments, such as stocks, bonds, options, real estate, and more. You may also be able to put some of the money in a money market account, where it will typically earn a higher annual percentage yield (APY) than in a traditional savings account yet still remain liquid.

While you might choose to keep most of your retirement savings in potentially higher-return investments, it may make sense to keep some of your retirement funds in a money market account, since it is a relatively low-risk place to store cash. Even if the return may be lower than other investments, it’s predictable.

Another reason to have some of your retirement money in a money market account is to serve as a holding place as you sell investments or transfer money between investments.

Unlike a regular money market account, a money market account that is offered as a component of a retirement account is subject to the benefits and restrictions of those accounts. Here’s what else you need to know about retirement accounts that offer a money market component.

What Is a Money Market Account That Can Be Used for Retirement?

While there is no such thing as a “retirement money market account,” some retirement accounts allow you to keep some of your money in a money market within the account. The money market account (MMA) could be within a traditional, rollover, or Roth IRA, a 401(k), or other retirement account, which means those funds are governed by the rules of that account.

If the MMA is a component of a traditional IRA, that means you can contribute pre-tax dollars (up to certain limits), your money can grow tax deferred, and you won’t be able to withdraw funds before age 59 ½ without paying taxes and penalties.

Money held in the money market component is liquid. This is usually where money is held when you first transfer money into your retirement account, or when you sell other investments in your account. You can use the funds in the money market to purchase investments within the retirement account.

Recommended: The Different Between an Investment Portfolio and a Savings Account

What Is a Money Market Fund?

Bear in mind an important distinction: A money market fund, which is technically a type of mutual fund, is different from a money market account. A money market fund is an investment that holds short-term securities (and is not insured by the Federal Deposit Insurance Corporation, or FDIC). For example, these funds may hold government bonds, municipal bonds, corporate bonds, cash and cash equivalents.

A money market account is essentially a type of high-yield savings account and it’s FDIC insured up to $250,000.

How Does a Money Market Within Your IRA Work?

If you are starting a retirement fund that has a money market component to it, you’ll want to make sure that you understand how these money market accounts work. One major way they differ from regular money market accounts is that they are governed by a retirement plan agreement.

This can place some limits on what you can do with the money. Typically, that will mean that you can’t withdraw the money until you have reached a certain age. But one advantage is that the money in the account will grow tax-free or tax-deferred (depending on what type of retirement account it is in).

For example, a money market account in a Roth IRA would follow different rules than money in a traditional IRA.

•   You can deduct contributions to a traditional IRA, but a Roth IRA is funded with after-tax money.

•   You can’t withdraw money from a traditional IRA until you’re 59 ½, except under special circumstances.

•   Because contributions to a Roth are post tax, you can withdraw your contributions at any time (but not the earnings).

Advantages of a Money Market Account Held Within a Retirement Account

•   Since these accounts are held at a bank, they are insured by the FDIC up to $250,000. By contrast, money held in a brokerage account is not FDIC-insured.

•   The money market component can be used to store proceeds of the sales of stocks, bonds, or other investments.

•   Many money market accounts offer the ability to write checks against the account (just keep in mind that withdrawals are subject to restrictions).

Disadvantages of a Money Market Account Held Within a Retirement Account

•   Money market accounts offer a relatively low rate of return compared to what you might be able to earn in the market over time.

•   Opening this type of money market account requires opening a retirement account.

•   You may not be able to withdraw money until retirement age without paying a penalty.

Money Market Account Within a Retirement Account vs Traditional Money Market Account

The biggest difference between a money market account that is a component of a retirement account vs. a traditional money market account is where they are held. Unlike a regular money market account, the money market component is held inside a retirement account, such as a 401(k) or IRA account.

While you can generally access money in a traditional money market account at any time, early withdrawal from a money market that is part of a retirement account can trigger taxes and penalties.

Recommended: What is an IRA and How Does it Work?

What Should I Know About Money Market Accounts Held Within IRAs?

If you are wondering how to save for retirement, there are a few things to keep in mind before opening a retirement account with a money market component.

The most important is that money put into the money market component is subject to the same conditions as any other money you invest into a retirement account. You generally will not be able to access it without penalty until you retire.

You’ll also want to bear in mind that these are low-risk, generally low-return accounts. The money that you deposit, or money that is automatically transferred, is not going to provide much growth.

In some cases, when you open a retirement account, the funds will be automatically deposited in the money market component. In these instances, be sure to check that the money in that part of your account is then used to purchase the securities you want. Given the relatively low yield of an MMA, you may only want a certain portion of your savings to remain there.

Opening a Money Market Account That Is Part of an IRA

If you want to put some of your retirement savings in a money market account, you likely won’t be able to open the account separately, as you can with a traditional MMA.

Instead, you would open a retirement account with your bank, brokerage firm, or company provider. Depending on your IRA custodian, they may automatically include a retirement money market account as an investment option inside your IRA account.

Does It Make Sense to Put Retirement Funds in a Money Market?

There are many different types of retirement plans, so you’ll want to make sure to choose the options that make the most sense for you. While it might make sense to put some money into the money market component of your 401(k) or IRA, you might not want to put much money in it.

The reason for this is due to the relatively low interest rate that money market accounts pay. In some cases, the interest rate may be lower than the rate of inflation. If so, the money kept in the money market component will lose purchasing power over time.

The one exception to this rule would be retirees who are currently living off of the money in their retirement accounts. These investors already in retirement will often want to keep some of their money in money market accounts so they have to worry less about market volatility.

Alternatives to Money Market Accounts Held Within Retirement Accounts

There are any number of low-risk alternatives to money market accounts within retirement accounts, including vehicles outside a retirement account, such as a high-yield savings account. For similar alternatives within a retirement account, you could consider investing in bonds, bond funds, and other lower risk investment options.

The Takeaway

A money market account is often a component of a retirement account, such as an IRA or 401(k). This type of account has the advantages of being FDIC-insured and fairly liquid. However, it may not earn enough interest to outpace inflation. Many investors will want to keep the money in their retirement accounts in investments that can provide higher rates of return. That said, one advantage to keeping some of your retirement funds in a money market is that it can become part of the low-risk, cash/cash equivalents portion of your portfolio.

Interested in opening an online bank account? When you sign up for a SoFi Checking and Savings account with eligible direct deposit, you’ll get a competitive annual percentage yield (APY), pay zero account fees, and enjoy an array of rewards, such as access to the Allpoint Network of 55,000+ fee-free ATMs globally. Qualifying accounts can even access their paycheck up to two days early.

FAQ

Can you keep some of your retirement funds in a money market account?

Yes, some retirement accounts offer a money market component. To keep some of your retirement savings in a money market account, you’ll need to open up an individual retirement account (IRA), 401(k), or other type of retirement account. Many retirement account custodians will include a money market account as one “investment“ option for your account.

What is the difference between an IRA and a money market account?

A standard money market account is similar to a regular savings account. An Individual Retirement Account (IRA) is an account that allows you to save for retirement with tax-free growth or on a tax-deferred basis. An IRA account can be used to invest in a variety of different ways. Many IRAs will have a money market component to them.

What is the difference between a money market account and a 401(k)?

A money market account is similar to a savings account in that the money is liquid and earns interest. A 401(k) is a special tax-advantaged account designed to help people prepare for retirement.

With a 401(k), contributions are typically tax-deductible and the money grows tax-deferred until retirement. By contrast, a money market account is funded with after-tax dollars, and there are no tax benefits associated with these accounts. The only exception is if the money market account is a component of a retirement account. In that case, it is governed by the rules of the retirement account it’s in.

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Annual percentage yield (APY) is variable and subject to change at any time. Rates are current as of 12/23/25. There is no minimum balance requirement. Fees may reduce earnings. Additional rates and information can be found at https://www.sofi.com/legal/banking-rate-sheet

Eligible Direct Deposit means a recurring deposit of regular income to an account holder’s SoFi Checking or Savings account, including payroll, pension, or government benefit payments (e.g., Social Security), made by the account holder’s employer, payroll or benefits provider or government agency (“Eligible Direct Deposit”) via the Automated Clearing House (“ACH”) Network every 31 calendar days.

Although we do our best to recognize all Eligible Direct Deposits, a small number of employers, payroll providers, benefits providers, or government agencies do not designate payments as direct deposit. To ensure you're earning the APY for account holders with Eligible Direct Deposit, we encourage you to check your APY Details page the day after your Eligible Direct Deposit posts to your SoFi account. If your APY is not showing as the APY for account holders with Eligible Direct Deposit, contact us at 855-456-7634 with the details of your Eligible Direct Deposit. As long as SoFi Bank can validate those details, you will start earning the APY for account holders with Eligible Direct Deposit from the date you contact SoFi for the next 31 calendar days. You will also be eligible for the APY for account holders with Eligible Direct Deposit on future Eligible Direct Deposits, as long as SoFi Bank can validate them.

Deposits that are not from an employer, payroll, or benefits provider or government agency, including but not limited to check deposits, peer-to-peer transfers (e.g., transfers from PayPal, Venmo, Wise, etc.), merchant transactions (e.g., transactions from PayPal, Stripe, Square, etc.), and bank ACH funds transfers and wire transfers from external accounts, or are non-recurring in nature (e.g., IRS tax refunds), do not constitute Eligible Direct Deposit activity. There is no minimum Eligible Direct Deposit amount required to qualify for the stated interest rate. SoFi Bank shall, in its sole discretion, assess each account holder's Eligible Direct Deposit activity to determine the applicability of rates and may request additional documentation for verification of eligibility.

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Rebalancing your portfolio refers to tweaking the specific mix of assets and investments an investor owns. Once an investor has put together their portfolio, they’ll be faced with the question of how often to rebalance that portfolio to maintain an ideal mix of stocks, bonds, and other assets, in order to maintain a degree of diversification.

Generally, investors can rebalance their portfolios as often or as little as they want. It all depends on individual circumstances and goals.

What Is Portfolio Rebalancing?

Portfolio rebalancing is a way to adjust the asset mix of investments. It means realigning the assets of a portfolio’s holdings to match an investor’s desired asset allocation.

The desired allocation of investments in an investor’s portfolio — a combination of assets like stocks, bonds, mutual funds, commodities, and real estate — should be made with individual risk tolerance and financial goals in mind.

For example, an investor with a conservative risk tolerance might build a portfolio more heavily weighted towards less volatile assets, like bonds. The conservative investor may have a portfolio with 60% bonds and 40% stocks. In contrast, a younger investor may be more comfortable with riskier assets and build a portfolio with more stocks. The younger investor’s portfolio may have an asset allocation of 70% stocks and 30% bonds.

Over time, however, the different asset classes will likely have varying returns. So the amount of each asset changes — one stock or fund might have such high returns it eventually grows to be a more significant portion of the portfolio than an investor wants.

For example, if the younger investor aims to have 70% stocks and stock prices go up drastically during a year, the portfolio may consist of 80% stocks. That’s when it could be time for the investor to rebalance to maintain the target allocation of stocks.

💡 Quick Tip: Did you know that the term robo advisor is a little misleading? An auto investing account isn’t a robot and typically doesn’t offer personalized investment advice. But it does use sophisticated technology to suggest investment options that may suit your goals and risk level.

Why You Should Consider Rebalancing Your Portfolio

Investors may want to rebalance their portfolios as a method to maintain their target asset allocation. This can help investors stay on track to reach long-term financial goals.

The target asset allocation is a plan outlining the percentage of each asset class an investor wants to hold in their portfolio. A target asset allocation is based on investor goals and risk tolerance.

It might be tempting to think that if a specific asset has outperformed, one should keep a higher portion of their portfolio in that asset and not rebalance. But if an investor doesn’t rebalance, the portfolio may eventually drift away from the target asset allocation. This might be a problem because it can change the amount of risk in a portfolio.

How Often Do You Need to Rebalance Your Portfolio?

Investors can rebalance their portfolios whenever they want, depending on personal preferences. However, some investors rebalance their portfolios at set time points, whether monthly, quarterly, or annually.

For many people, it makes sense to use these time markers to examine the asset allocation of their portfolios and decide if their investments need adjusting. This time-based approach makes it easier to get in the habit of rebalancing.

The downside of rebalancing at set calendar points is that investors may risk rebalancing needlessly. For example, if an investor’s portfolio drifted just 1% from stocks to bonds at the end of the quarter doesn’t mean they should rebalance. Rebalancing a portfolio with little asset drift might lead to unnecessary transaction costs and other investment fees.

In contrast, other investors rebalance at set allocation points — when the weights of assets in a portfolio change a certain amount. An investor may rebalance a portfolio when the target asset allocation drifts a certain percentage, like 5% or 10%.

Determining how often an investor should rebalance their portfolio also depends on how active they want to be in their investment management and what stage of life they’re in — maybe those closer to retirement will want to rebalance more frequently as a risk-avoidance strategy.

💡 Quick Tip: When you’re actively investing in stocks, it’s important to ask what types of fees you might have to pay. For example, brokers may charge a flat fee for trading stocks, or require some commission for every trade. Taking the time to manage investment costs can be beneficial over the long term.

How to Rebalance Your Portfolio

An investor can rebalance a portfolio themselves by selling some assets that are above the target asset allocation and using the proceeds to buy up securities that are below the target allocation.

Investors who plan to rebalance their portfolios should keep track of quarterly and monthly statements from their brokerage and retirement accounts. These statements will give an investor a sense of the value of a portfolio and the overall asset allocation. Once the investor has a handle on rebalancing to reach a target allocation, they’ll need to buy and sell shares or securities to maintain their ideal asset allocation.

However, there can be a fine line between prudent rebalancing and potentially harmful overtrading. While many people like to be involved and actively manage their portfolios, the downside is that active trading can lead to trading at the wrong time. Further, buying and selling shares may incur fees, which eats into the gains or any strategy an investor is trying to execute by rebalancing.

Different Types of Portfolio Rebalancing

There are several ways to rebalance investments for different goals and life stages. Three major strategies include rebalancing to ensure investments are still diversified, using so-called “smart beta” strategies, and rebalancing retirement accounts.

Rebalancing for Diversification

The most basic form of rebalancing is maintaining a diversified portfolio. Over time, a portfolio can become less diverse, as different assets have different rates of return and make up a more significant percentage of the invested money. This is where rebalancing comes in.

For example, assume an investor has a $100,000 portfolio composed of $60,000 in stocks and $40,000 in bonds. After one year, the value of the stock holdings increased by 30%, while the bonds grew by 5%. This portfolio now has a value of $120,000: $78,000 worth of stocks — 65% of the portfolio — and $42,000 worth of bonds — 35% of the portfolio. In this case, the investor would sell enough stocks to get back down to 60% of the portfolio, or $72,000, and buy bonds to get the allocation up to 40%, or $48,000.

An investor would likely have more detailed and sophisticated allocation goals in the real world, but this example illustrates how some simple arithmetic can guide rebalancing.

Smart Beta Rebalancing

Another approach to asset allocation is known as smart beta, a strategy that combines passive index investing with more discretionary active investing strategies. Smart beta rebalancing is typically done by portfolio managers of mutual funds and exchange-traded funds (ETFs).

With passive index investing, an investor buys a fund consisting of stocks that track the performance of a benchmark index, like the whole S&P 500. The stocks in these index funds are weighted based on their market capitalization. The managers of the index funds handle the rebalancing of holdings when market caps shift.

Smart beta is rules-based, like index investing. But instead of tracking a benchmark index weighted towards market cap, funds with smart beta strategies hold securities in areas of the market where managers think there are inefficiencies. Additionally, smart beta funds consider volatility, quality, liquidity, size, value, and momentum when weighting and rebalancing holdings. In this way, smart beta adds an element of active investing to passive investing. And as with index investing, investors can employ a smart beta strategy by buying smart beta mutual funds or ETFs, though they come with higher fees.

Rebalancing Retirement Accounts

In many cases, retirement savings are in investment accounts. Investors need to be aware of the allocation and balances of their retirement accounts, whether they’re 401(k)s, IRAs, or a combination thereof.

The principles at play are similar to any portfolio rebalancing, but investors need to consider changing risk tolerance as they get closer to retirement. Generally, investors will adopt a more conservative target asset allocation as they near retirement. Target date funds typically work by automatically rebalancing over time from stocks to bonds as investors get closer to retirement.

For investors to stay on top of this themselves, they’ll need to know how they want their investments allocated each year as they get closer to retirement and then use quarterly or annual rebalancing to buy and sell securities to hit those allocation targets.

The Takeaway

Rebalancing an investment portfolio can help investors stay on track to meet their long-term goals. By ensuring that there is a steady mix of assets in their portfolio, they can stay on top of their investments to work with their risk tolerance and financial needs.

There are ways investors can rebalance their portfolios on their own and use different strategies. Rebalancing, allocation, and diversification are important concepts for investors to understand, and may help investors generate returns aligned with their goals over the long term when used wisely.

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