Understanding Pre-Tax and After-Tax Investments

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When discussing retirement plans, you may hear the terms “pre-tax” or “after-tax” concerning investment accounts. Knowing the difference between the two will help you maximize your dollars and minimize your tax burden.

Here's how to tell the difference, and how to use both to your advantage.

Pre-Tax Accounts

With a pre-tax account, you or your employer put money into a retirement account before taxes are assessed. These are also known as "tax-deferred" accounts, because you defer paying taxes until you withdraw from the account in the future. The idea is that you will be in a lower income tax bracket in retirement, so you'll enjoy more favorable tax rates at that point than you would during your peak earning years. By deferring taxes, you hope to reduce your overall tax bill on the funds in the account.

Pre-tax accounts include:

  • Traditional IRAs
  • 401(k) plans
  • Pensions
  • Profit-sharing accounts
  • 457 plans
  • 403(b) plans

You have not yet been taxed on the money you deposit, so it is called "pre-tax." Within a pre-tax account, you may be able to choose from many different types of investments, such as:

  • CDs
  • Annuities (fixed, variable, or immediate)
  • Mutual funds
  • Stocks
  • Bonds

Note

Not all of these investments are available in every pre-tax account. Employer-hosted pre-tax accounts, such as 401(k) plans, may limit the available investments to a pre-selected list of mutual funds.

Pre-Tax Account Considerations

Your pre-tax contributions lower your taxable income by the amount deposited. For example, if your taxable income was going to be $40,000 for a given year, and you put $2,000 of it in a pre-tax account such as a traditional IRA, then your reported taxable income for that year would be $38,000. The IRS caps the amount you can deposit into these pre-tax vehicles each year, and it varies by account as well as by your age.

Not only do pre-tax contributions lower your taxable income for that year, but you also do not have to pay tax on the interest income, dividend income, or capital gains until you make a withdrawal. Deferring your taxes this way gives your principal time to grow and accrue interest.

The downside of pre-tax accounts is that you do not get to take advantage of the lower tax rates that apply to qualified dividends and long-term capital gains. Investment income inside of pre-tax accounts is all taxed the same way: as ordinary income upon withdrawal.

Note

When you take, for example, an IRA withdrawal from a pre-tax account, the entire amount of the withdrawal will be taxable income in the calendar year you take it. (Transfers and rollovers, when done correctly, do not count as withdrawals.)

A pre-tax retirement account must have a custodian, or financial institution, whose job it is to report to the Internal Revenue Service (IRS) the total amount of contributions and withdrawals for the account each year. The custodian who holds your pre-tax account will send you and the IRS a 1099-R tax form in any year that you make a withdrawal. If you take a withdrawal from a pre-tax account early (typically, before age 59 1/2), then a penalty may also apply. This penalty is generally 10%.

After-Tax Accounts

With after-tax dollars, you earn the money, pay income tax on it, and then deposit it into some type of account where it can earn interest and grow.

Examples of these kinds of accounts include:

  • Savings accounts
  • Certificates of Deposit
  • Money-market accounts
  • Regular, taxable brokerage accounts (where you can buy just about any investment, such as mutual funds, stocks, bonds, or annuities)
  • Roth IRAs

The original amount you invest is called the "principal." In a taxable investment account, this is also known as your "cost basis." When you cash in an after-tax (non-retirement account) investment, you only pay tax on any investment gain above your original investment amount.

However, even within after-tax accounts, not all gains are taxed the same. Generally, the longer you hold an investment, the more favorable your tax situation. Long-term investments deliver returns in the form of qualified dividends and long-term capital gains, and these types of investment income are subject to a lower tax rate—and in some cases, long-term capital gains are not taxed at all.

When you have funds in an after-tax account, you will receive a 1099-DIV, 1099-INT, or 1099-B form from your financial institution each year. It will show you any interest income, dividend income, and capital gains earned for that year. This income must be reported on your tax return each year. Often, brokers will send a consolidated form to customers, including information on all three forms in the same document.

Roth IRAs

Most retirement accounts are pre-tax accounts—you get a tax break upfront for saving. Roth IRAs are an exception. These accounts are funded with after-tax dollars, but they offer significant tax benefits to those who wait until retirement to withdraw from them.

For example, while brokerage accounts tax capital gains, Roth IRAs allow holdings to grow tax-free. As long as you withdraw from the account properly, you won't pay any taxes on capital gains or dividends acquired within the account.

Using a Combination of Accounts

For retirement planning, some financial planners will suggest a combination of pre-tax and after-tax accounts—using both a Roth IRA and Traditional IRA, for example. Having both is a method of tax diversification, helping you to hedge against a change in tax rates as well as a change in income in the future.

Contributing to a pre-tax account now may mean that your investment and earnings will be taxed at a lower rate later, in your retirement years. On the other hand, using an after-tax account now means you've already paid the tax on your contributions.

Of course, these financial guidelines are quite general, and your personal financial profile must be taken into account. Speak to your financial planner about the ideal way to structure your accounts.

Frequently Asked Questions (FAQs)

How do you make pre-tax contributions to an IRA?

Making pre-tax contributions to an IRA is a bit counterintuitive, because you don't contribute funds from a special pile of "pre-tax" dollars you have sitting around. Instead, you simply contribute funds from your normal bank account and take a tax break when you file your returns. When you report your IRA contributions, you are reimbursed for those funds with a tax deduction, which effectively makes your contribution "pre-tax."

How do I know if my 401(k) contributions are pre-tax?

Due to the nature of 401(k) plans, you can always expect your contributions to be pre-tax. The only exception is if you have a Roth 401(k) that allows for after-tax contributions. While Roth 401(k) plans are becoming increasingly common, they are still much less common than the standard 401(k) alternative. If you aren't sure whether your employer sponsors a 401(k) or Roth 401(k) plan, then reach out to its human resources department.

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Sources
The Balance uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.
  1. Internal Revenue Service. "Retirement Plan and IRA Minimum Required Distributions FAQs."

  2. Internal Revenue Service. "Rollovers of Retirement Plan and IRA Distributions."

  3. Internal Revenue Service. "Retirement Topics - Exceptions to Tax on Early Distributions."

  4. Internal Revenue Service. "Topic No. 404 Dividends."

  5. Internal Revenue Service. "Topic No. 409 Capital Gains and Losses."

  6. Internal Revenue Service. "2021 General Instructions for Certain Information Returns," Pages 26-27.

  7. Internal Revenue Service. "Publication 590-B, Distributions From Individual Retirement Arrangements (IRAs)."

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