How to Invest $100,000: A Step-by-Step Guide

Dayana YochimMay 14, 2021
How to Invest $100,000

Many or all of the products featured here are from our partners who compensate us. This may influence which products we write about and where and how the product appears on a page. However, this does not influence our evaluations. Our opinions are our own. Here is a list of our partners and here's how we make money.

The investing information provided on this page is for educational purposes only. NerdWallet does not offer advisory or brokerage services, nor does it recommend or advise investors to buy or sell particular stocks or securities.

Have $100,000 burning a hole in your bank account? It may sound like an unlikely pipe dream, but windfalls happen: You sell a larger home to downsize; you find a buyer for your small business; a relative leaves you an inheritance. Or maybe you’ve simply chipped away at building wealth over the years and are ready to put that savings to work.

For the purposes of this article, we’ll assume you’re already standing on solid financial ground: You have no revolving high-interest (credit card) debt, you’ve got an adequate cash cushion to cover any emergency expenses, you’re able to easily cover your monthly expenses and have any money you need for nearer-term expenses (home improvements, tuition, family vacations) set aside and not invested in the stock market.

Now, what's the best way to invest $100,000? Let's get to work.

» Want help investing? Jump off here to see our picks for the best robo-advisors.

Am I on track financially?

Our investment strategy road map can guide your investing journey.

1. Decide what type of investor you are

There are no two ways about it, $100,000 is a lot of money and deciding how to invest it can be equal parts exciting and overwhelming. Luckily, you needn't navigate this journey alone. Finding the right help depends on the type of advice you want, how much guidance you want, and how hands-on or hands-off you want to be:

  • I'm a DIY investor. If you’re the hands-on type, it’s cheaper — and easier — than ever to create, research and manage your own portfolio. Before you begin, decide which trading style is best for you — active trading, day trading or passive investing. Once you've opened an account with one of the many online brokerages, you'll be able to take your pick and choose among a variety of assets (think: stocks, bonds, mutual funds, ETFs and options). Consult our picks of the best stock brokers.

  • I'd like to automate this process. Looking for a low-cost/low-hassle solution? Robo-advisors are a good option. These companies offer automated portfolio management for less than you’d pay a human to do the same thing. But many providers offer a human touch, where you'll have access to financial advisors who can answer investing questions or customize your portfolio. We've rounded up the best robo-advisors, depending on your needs.

  • I'm seeking full-service guidance. If you want someone to make investment recommendations, manage your windfall and address other financial planning tasks on your list, you might consider hiring the next step up from a robo-advisor, an online financial advisor. These are less expensive than traditional financial advisors, but offer a similar level of service. View our list of the best financial advisors.

SoFi Automated Investing
Vanguard Digital Advisor
NerdWallet rating 
NerdWallet rating 
NerdWallet rating 


management fee



per year (approximately)



management fee

Account Minimum


Account Minimum


Account Minimum




career counseling plus loan discounts with qualifying deposit


No advisory fees

your first 90 days of Vanguard Digital Advisor investment management (Enrollment requires a Vanguard account with a minimum of $3,000)


Up to 1 year

of free management with a qualifying deposit

2. Pad your nest egg

Once you've determined what type of investor you are, time is of the essence to start putting that money to work in the market. A $100,000 windfall offers a unique opportunity to pad your savings — and beyond, maxing out your retirement account (more on that later).

Perhaps you’re thinking, “With this kind of money we can pay cash for the kids’ educations so they can graduate without any student loan debt!” Instead, consider this: In Maslow's hierarchy of needs for finances, “pay yourself first” forms the foundation of the triangle. Therefore, your needs come before saving for your child’s college tuition. The kids can get scholarships or loans, or work their way through school; similar opportunities aren't available to retirees. (Learn more about how to prioritize your financial goals.)

Investing, say, $70,000 of that windfall and earning a 6% average annual return will mean an extra $300,000 in 25 years — the kind of padding that makes it less likely you’ll run out of money and have to move in with the kids. Use a retirement calculator to see how extra dollars affect when you can retire and how much monthly income you’ll have in the future.

» Read up on the basics: How to invest in stocks

3. Max out retirement (and avoid the IRS, while you're at it)

Don’t even think about the Cayman Islands. There are legal ways to dodge the IRS, at least for a while, and one of the best is to stuff as much of that $100,000 as possible into tax-favored retirement savings accounts.

Employer-sponsored retirement plans, such as a 401(k) or 403(b), and individual retirement accounts, such as Roth or traditional IRAs, can help shield tens of thousands of your dollars from taxes. (Learn more about the differences between IRAs and 401(k)s.)

With $100,000 at your disposal, you can afford to max out both a 401(k) and an IRA if you’re eligible. The 401(k) contribution limit is $19,500 for 2021 ($26,000 for those age 50 or older). Combine that with an IRA contribution limit of $6,000 in 2021 ($7,000 if age 50 or older) to invest as much you can for your future.

» Ready to max out? Consult our picks for best Roth IRA or IRA accounts.

4. Handle your taxes now

We've focused primarily on investing, but an equally important objective is to retain as much of that windfall as possible. A couple specific situations may require immediate action in order to avoid unwanted attention from the IRS:

  • I liquidated a 401(k) when I left a job. You have just 60 days after an employer cuts you a check to get that money saved in a workplace retirement account into either a Roth IRA or a traditional IRA. Otherwise, you’ll trigger a pretty hefty tax bill consisting of income taxes (the IRS treats the money as earned income for the year) and a potential 10% early withdrawal penalty. Read more about how to roll over a 401(k) to an IRA.

  • I inherited an IRA: You may be on a tight deadline if you’ve inherited an IRA. The rules about what beneficiaries can and cannot do vary, as does the timeline for taking action without incurring penalties or triggering extra taxes. It all depends on your relationship to the deceased (surviving spouses have different options than other beneficiaries), whether or not the former owner had started taking distributions before they died, and the type of IRA (Roth or traditional).

5. Stay vigilant about fees

Just as you don't want the IRS to come knocking for your money, don't lose it all to fees. Remember back before you were a one-hundred-thousandaire and you were vigilant about every little extra investing cost? You're probably considering new investments, so keep up that mentality because now there’s more money at stake.

Investing fees are like a distant relative you helped out one time who now hounds you for bigger handouts. Not only is every dollar you hand over money you’ll never recoup, but it’s also one less dollar you have to invest for your future. And a dollar that’s not invested has no chance to compound and grow.

Even a small extra fee can take a huge bite out of investment returns. We calculated that a millennial investor paying just 1% more in investment fees than her peer sacrifices nearly $600,000 in returns over time. The fix? Invest in low-cost mutual funds and exchange-traded funds as opposed to paying the higher price for actively managed funds or explore our picks for discount brokers.

6. Reallocate your portfolio

Don’t scrap your existing asset allocation plan (that carefully crafted pie chart indicating how much of your money is in cash, bonds, stocks, real estate, etc.) in order to accommodate new money. Unless you’re in the midst of a major life change, such as retirement or liquidating assets for an upcoming expense, changes to the current makeup of your portfolio and your risk tolerance profile are probably unnecessary.

But with this new money in hand, now’s a good time to review where you are:

  • Take an asset allocation snapshot. Look at the overall mix of investments you have in all of your accounts, including current and old 401(k)s, IRAs, taxable brokerage accounts, bank accounts, sock drawers, and so on.

  • Identify areas where your portfolio has become unbalanced. Position sizes morph over time as investments change. Rebalance your portfolio by using some of the windfall money to restore the underrepresented assets. This will reduce your exposure to risk from lack of diversification.

  • Consider asset location, too. Asset location also offers tax diversification. With your 401(k) and in IRAs, you’ve got the tax-deferred angle covered. Because you’re not taxed on investment growth, it makes sense to hold investments that generate taxable income (such as corporate bond funds, high-growth stocks or mutual funds that buy and sell a lot) in these accounts. Even better if you can hold them in Roth versions of these accounts, where withdrawals in retirement are tax-free. In a taxable account, such as a regular brokerage account, growth and interest are subject to yearly income taxes, so slow and steady investments (large-cap stocks or index funds) belong here.

Get more smart money moves – straight to your inbox
Sign up and we’ll send you Nerdy articles about the money topics that matter most to you along with other ways to help you get more from your money.