Should I Put My Bonus Into My 401k? Here's What You Should Consider

By Paulina Likos · April 04, 2022 · 8 minute read

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Should I Put My Bonus Into My 401k? Here's What You Should Consider

If you’re wondering what to do with bonus money, you’re not alone. Investing your bonus money in a tax-advantaged retirement account like a 401(k) has some tangible advantages. Not only will the extra cash help your nest egg to grow, you could also see some potential tax benefits.

Of course, we live in a world of competing financial priorities. You could also pay down debt, spend the money on something you need, save for a near-term goal — or splurge! The array of choices can be exciting — but if a secure future is your top goal, it’s important to consider a 401k bonus deferral.

Here are a few strategies to think about before you make a move.

Receiving a Bonus Check

First, a practical reminder. When you get a bonus check, it may not be in the amount that you expected. This is because bonuses are subject to income tax. Knowing how your bonus is taxed can help you understand how much you’ll end up with so you can determine what to do with the money that’s left. The IRS considers bonuses as supplemental wages rather than regular wages.

Ultimately, your employer decides how to treat tax withholding from your bonus. Employers may withhold 22% of your bonus to go toward federal income taxes. But some employers may add your whole bonus to your regular paycheck, and then tax the larger amount at normal income tax rates. If your bonus puts you in a higher tax bracket for that pay period, you may pay more than you expected in taxes.

Also, your bonus may come lumped in with your paycheck (not as a separate payout), which can be confusing.

Whatever the final amount is, or how it arrives, be sure to set aside the full amount while you weigh your options — otherwise you might be tempted to spend it, as behavioral finance research has shown.

What to Do With Bonus Money

There’s nothing wrong with spending some of your hard-earned bonus from your compensation. One rule of thumb is to set a percentage of every windfall (e.g. 10% or 20%) — whether a bonus or a birthday check — to spend, and save the rest.

To get the most out of a bonus, though, many people opt for a 401k bonus deferral and put some or all of it into their 401k account. The amount of your bonus you decide to put in depends on how much you’ve already contributed, and whether it makes sense from a tax perspective.

Contributing to a 401k

The contribution limit for 401k plans in 2022 is $20,500; for those 50 and older you can add another $6,500, for a total of $27,000. If you haven’t reached the limit yet, allocating some of your bonus into your retirement plan can be a great way to boost your retirement savings.

In the case where you’ve already maxed out your 401k contributions, your bonus can also allow you to invest in an IRA or a non-retirement (i.e. taxable) brokerage account.

Contributing to an IRA

If you’ve maxed out your 401k contributions for the year, you may still be able to open a traditional tax-deferred IRA or a Roth IRA. It depends on your income.

In 2022, the contribution limit for traditional IRAs and Roth IRAs is $6,000; with an additional $1,000 catch-up provision if you’re over 50. But if your income is over $144,000 (for single filers) or $214,000 (for married filing jointly), you aren’t eligible to contribute to a Roth. And while a traditional IRA doesn’t have income limits, the picture changes if you’re covered by a workplace plan like a 401k.

If you’re covered by a workplace retirement plan and your income is too high for a Roth, you likely wouldn’t be eligible to open a traditional, tax-deductible IRA either. You could however open a nondeductible IRA. To understand the difference, you may want to consult with a professional.

Recommended: How Much Can You Put in an IRA This Year?

Contributing to a Taxable Account

Of course, when you’re weighing what to do with bonus money, you don’t want to leave out this important option: Opening a taxable account.

While employer-sponsored retirement accounts typically have some restrictions on what you can invest in, taxable brokerage accounts allow you to invest in a wider range of investments. So if your 401k is maxed out, and an IRA isn’t an option for you, you can use your bonus to invest in stocks, bonds, exchange-traded funds (ETFs), mutual funds, and more in a taxable account.

Deferred Compensation

You also may be able to save some of your bonus from taxes by deferring compensation. This is when an employee’s compensation is withheld for distribution at a later date in order to provide future tax benefits.

In this scenario, you could set aside some of your compensation or bonus to be paid in the future. When you defer income, you still need to pay taxes later, at the time you receive your deferred income.

Your Bonus and 401k Tax Breaks

Wondering what to do with a bonus? It’s a smart question to ask. In order to maximize the value of your bonus, you want to make sure you reduce your taxes where you can.

One method that’s frequently used to reduce income taxes on a bonus is adding some of it into a tax-deferred retirement account like a 401k or traditional IRA. The amount of money you put into these accounts typically reduces your taxable income in the year that you deposit it.

Here’s how it works. The amount you contribute to a 401k or traditional IRA is tax deductible, meaning you can deduct the amount you save from your taxable income, often lowering your tax bill. (The same is not true for a Roth IRA or a Roth 401k, where you make contributions on an after-tax basis.)

The annual contribution limits for each of these retirement accounts noted above may vary from year to year. Depending on the size of your bonus and how much you’ve already contributed to your retirement account for a particular year, you may be able to either put some or all of your bonus in a tax-deferred retirement account.

It’s important to keep track of how much you have already contributed to your retirement accounts because you don’t want to put too much of your bonus and exceed the contribution limit. In the case where you have reached the contribution limit, you can put some of your bonus into other tax deferred accounts including a traditional IRA or a Roth IRA.

Recommended: Important Retirement Contribution Limits

How Investing Your Bonus Can Help Over Time

Investing your bonus can help increase its value over the long-run. As your money grows in value over time, it can be used in many ways: You can stow part of it away for retirement, as an emergency fund, a down payment for a home, to pay outstanding debts, or another financial goal.

While it can be helpful to have some of your bonus in cash, your money is better suited invested in an investment vehicle where it works for you and doesn’t lose value due to inflation. If you start investing your bonus each year in either a tax-deferred retirement account or non-retirement account, this will ensure you are steps closer to enjoying greater financial security in the future.

Investing for Retirement With SoFi

The yearly question of what to do with a bonus is a common one. Just having that windfall allows for many financial opportunities, such as saving for immediate needs — or purchasing things you need now. But it may be wisest to use your bonus to boost your retirement nest egg — for the simple reason that you could stand to gain more financially down the road, while also potentially enjoying tax benefits in the present.

The fact is, most people don’t max out their 401k contributions each year, so if you’re in that boat it might make sense to take some or all of your bonus and fill up the gas tank, so to say. If you have maxed out your 401k, you still have options to save for the future via traditional or Roth IRAs, deferred comp, or investing in a taxable account.

A taxable account might offer you different or complementary investment options that could also round out your portfolio.

Keeping in mind the tax implications of where you invest can also help you allocate this extra money where it fits best with your plan.

If you get a bonus this year, you can help grow your retirement savings with SoFi Invest®. It’s easy to set up an Active Invest account and open a traditional or Roth IRA online with SoFi. With either an active or automated approach to investing in these retirement accounts, you can choose from a wide range of investment options and services, such as speaking with financial professionals at no additional cost. Learn more about how to take control of your retirement with SoFi Invest.


Is it good to put your bonus into a 401k?

The short answer is yes. It might be wise to put some or all of your bonus in your 401k, depending on how much you’ve contributed to your workplace account already. You want to make sure you don’t exceed the 401k contribution limit.

How can I avoid paying tax on my bonus?

Your bonus will be taxed, but you can lower the amount of your taxable income by depositing some or all of it in a tax-deferred retirement account such as a 401k or IRA. However, this does not mean you will avoid paying taxes completely. Once you withdraw the money from these accounts in retirement, it will be subject to ordinary income tax.

Can I put all of my bonus into a 401k?

Possibly. You can put all of your bonus in your 401k if you haven’t reached the contribution limit for that particular year, and if you won’t surpass it by adding all of your bonus. For 2022, the contribution limit for a 401k is $20,500 if you’re younger than 50 years old; Those over 50 can contribute an additional $6,500 for a total of $27,000.

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