After-Tax Balance Rules for Retirement Accounts (2024)

There are benefits to taking after-tax distributions from a retirement account. If you follow specific rules, the amount withdrawn will be free of taxes and penalties.

Pretax vs. After-Tax Contributions

Most retirement plan participants use pretax assets to fund their employer-sponsored plans, such as 401(k) and 403(b) qualified accounts, or they claim a tax deduction for amounts contributed to their traditional IRAs. In both cases, these contributions can help to reduce the individual’s taxable income for the year to which the contribution applies.

However, it is also possible to contribute amounts to employer-sponsored plans on an after-tax basis, and contributions can be nondeductible for IRAs. The advantage of accumulating after-tax assets in a retirement account is that when they are distributed, the amounts will be tax- and penalty-free. However, this benefit is realized only if the necessary steps are taken.

Key Takeaways

  • Distribution of after-tax assets from a retirement account can be tax- and penalty-free, but only if certain rules are followed.
  • Good recordkeeping and communication with your plan administrator and the IRS are essential.
  • Qualified retirement plan administrators are responsible for keeping track of which part of your balance is after-tax assets and which is pretax assets, but it’s up to you to do so for an IRA.

Tracking Your After-Tax Assets

Reaping the benefits of this strategy starts with good recordkeeping and clear communication with your plan administrator and the Internal Revenue Service (IRS). Today, several free (and fee-based) software tools are available to help you keep track of your taxable and tax-deferred investments and income flows. An accountant can also help you make sure you have all your ducks in a row.

Your Qualified Plan Account

The administrator for your qualified retirement plan is responsible for keeping track of which portion of your balance is attributed to after-tax assets and which to pretax assets. However, it helps if you check your statements periodically to ensure that the tabulations match what you think they should be. This will allow you to clarify possible discrepancies with the plan administrator.

Your IRA

Your IRA custodian is not required to keep track of the after-tax balance in your IRA, and most, if not all, do not. As the owner of the IRA, you are responsible for keeping track of such balances, and this can be accomplished by filing IRS Form 8606.

Make sure you read the filing instructions that accompany Form 8606, as they provide details on the sections of the form that must be completed.

If you make a nondeductible contribution to your traditional IRA or roll over after-tax assets from your qualified plan account to your IRA, you must file IRS Form 8606 for the year the amount is contributed to the IRA. While the IRS does not currently require Form 8606 to be filed for rollover of after-tax amounts, it may be a good idea to record such amounts for your records.

Form 8606 lets the IRS know that the amount represents after-tax assets, and it helps you keep track of the balance of your IRA that should be tax-free when distributed. Form 8606 must also be filed for any year in which distributions occur from any of your traditional, SEP, or SIMPLE IRAs and you have accumulated after-tax amounts in any of these accounts.

Taxing of After-Tax Assets

Qualified Plans

Generally, your plan administrator will indicate the taxable portion of amounts distributed from your qualified plan account on the Form 1099-R that you receive for the year. If the amount is not properly indicated on the 1099-R, you may want to request written confirmation from the plan administrator of the portion of the distribution that is attributable to after-tax assets. This will help ensure you include the correct amount in your taxable income for the year.

IRAs

With the exception of “return of excess contributions,”your IRA custodian is not required to make a distinction between the taxable and nontaxable portion of amounts distributed from your traditional IRA. You must provide that information on your income tax return by indicating the entire amount of the distribution versus the amount that is taxable.

For more information, see the instructions for line 4a on page 1 of IRS Form 1040.  Form 8606 will help you determine the taxable and nontaxable portions of amounts distributed from your traditional IRA.

All of your IRA accounts are treated as a single one when taking distributions, meaning that the after-tax and pretax amounts in them must be pro-rated across all the accounts.

Pro-Rata Distributions

If your qualified plan or traditional IRA includes after-tax amounts, distributions usually include a pro-rata amount of your pretax and after-tax balance. For this purpose, all of your traditional, SEP, and SIMPLE IRAs are treated as one account.

For instance, assume that you made an average of $20,000 in after-tax contributions to your traditional IRA over the years, and your traditional IRA also includes pretax assets of $180,000, attributed to rollover of pretax assets and deductible contributions. Distributions from your IRA will include a pro-rata amount of pretax and after-tax assets. Let’s look at an example using these numbers.

Example

John has several IRAs, which consist of the following balances:

  1. Traditional IRA No. 1, which includes his nondeductible (after-tax) contributions of $20,000
  2. Traditional IRA No. 2, which includes a rollover from his 401(k) plan in the amount of $150,000
  3. Traditional IRA No. 3, which is really a SEP IRA, including SEP contributions of $30,000

John withdraws $20,000 from IRA No. 1. He must include $18,000 as taxable income from the $20,000 he withdrew. This is because all of John’s traditional, SEP, and SIMPLE IRAs are treated as one IRA for the purposes of determining the tax treatment of distributions when John has abasis (after-tax assets) in any of his traditional, SEP, or SIMPLE IRAs.

The following formula can be used to determine the amount of a distribution that will be treated as non-taxable:

Basis ÷ Account Balance x Distribution Amount = Amount Not Subject to Tax

Using the figures in the example above, the formula would work as follows:

$20,000 ÷ $200,000 x $20,000 = $2,000

As IRS Form 8606 includes a built-in formula to determine the taxable amount of distributions from your traditional IRAs, you may not need to use this formula for distributions from your IRA.

For qualified plan accounts that include a balance of after-tax amounts, distributions are usually pro-rated to include amounts from pretax and after-tax balances. This means that, similar to IRAs, you can’t choose to distribute only your after-tax balance.

However, certain exceptions apply. For instance, if your account includes after-tax balances accrued before 1986, these amounts may be distributed in full, resulting in the entire amount being non-taxable, rather than being pro-rated.

After-Tax Balance Rollovers

If your retirement account balance includes after-tax amounts, whether these amounts can be rolled over depends on the type of plan to which the rollover is being made.

The following is a summary of the rollover rules for these amounts:

  • IRA to IRA: All rollover-eligible amounts can be rolled over to an IRA. This includes after-tax amounts.
  • IRA to qualified plan: All rollover eligible amounts can be rolled over to a qualified plan, provided the plan allows it. However, this does not include after-tax amounts—such amounts cannot be rolled over from an IRA to a qualified plan.
  • Qualified plan to traditional IRA: All rollover-eligible amounts can be rolled over to a traditional IRA. This includes after-tax amounts.
  • Qualified plan to qualified plan: All rollover-eligible amounts can be rolled over to another qualified plan, provided the plan allows it. This includes after-tax amounts if these amounts are transacted as direct rollovers.

The Bottom Line

Bear in mind that this is just an overview of the rules that apply to your after-tax balance in your retirement account. Having a thorough understanding of the rules will ensure that you include the right amount in your taxable income for the year you receive a distribution from your retirement account and not pay taxes on amounts that should be tax-free.

Consider consulting a tax professional for assistance to make sure your after-tax assets are treated correctly on your tax return, and you know which tax forms to file each year.

After-Tax Balance Rules for Retirement Accounts (2024)

FAQs

What is the after-tax retirement account limit? ›

Employee contributions are limited to $23,000 (for 2024) plus an additional $7,500 catch-up contribution for those age 50 and older. But the after-tax 401(k) plan allows you to contribute up to a combined total of $69,000 (for 2024, or $76,500 for those 50 and older), including any employer matching funds.

What is the pro rata rule for after-tax money in an IRA? ›

The Pro-Rata rule states that when a Traditional IRA or 401(k) contains both non-deductible after-tax funds and deductible pre-tax funds, each dollar withdrawn or converted from the IRA or 401(k) will contain a percentage of tax-free and taxable funds relative to the proportion those funds make up the account.

Do all 401k plans allow after-tax contributions? ›

And like those plans, qualified withdrawals are tax- and penalty-free. The catch is that not all 401(k) plans allow after-tax contributions. Unbiased, expert financial advice for a low price.

Can you contribute to an IRA with after-tax money? ›

Yes. Earnings associated with after-tax contributions are pretax amounts in your account. Thus, after-tax contributions can be rolled over to a Roth IRA without also including earnings.

Is there an after tax 401k limit? ›

There's no specific dollar amount for aftertax 401(k) contributions, but total 401(k) contributions, including traditional/Roth contributions, employer contributions, forfeitures, and aftertax contributions, can go as high as $66,000 in 2023 ($73,500 for people 50-plus).

What is the 5 year rule for retirement accounts? ›

Roth IRA five-year rule for withdrawals

The contributions you've made to your Roth IRA can be withdrawn at any time because you've already paid taxes on that money. If you don't wait five years before withdrawing earnings, you may have to pay taxes and a 10% penalty on the earnings portion of your withdrawal.

How to avoid the pro-rata rule? ›

One can reduce or even eliminate pre-tax IRA funds, therefore avoiding the pro-rata rule. Bypassing the pro-rata rule on the Roth conversion portion of the backdoor Roth strategy requires the account owner to have $0 of pre-tax money in all non-Roth IRAs at the end of the year of the conversion (i.e., December 31).

How does an after-tax IRA work? ›

What's the difference between pre-tax and after-tax IRA contributions? Pre-tax IRA contributions are generally tax-deductible and allow you to delay taxes until you withdraw money from your account. After-tax contributions are made with income you've already paid taxes on. There's no up-front tax break.

What is the after-tax IRA that grows tax-free? ›

With a Roth IRA, you contribute after-tax dollars, your money grows tax-free, and you can generally make tax- and penalty-free withdrawals after age 59½. With a Traditional IRA, you contribute pre- or after-tax dollars, your money grows tax-deferred, and withdrawals are taxed as current income after age 59½.

Which is better, pre-tax or after-tax? ›

Pre-tax contributions can reduce your overall tax burden now, but post-tax benefits can result in tax savings in the future. By working with a tax advisor and staying up to date on pre and post-tax benefits, common deductions, and your state and local taxation laws, you will save time and future headaches.

Which is better, a 401k pre-tax or after-tax? ›

Compare your current and future tax brackets

Generally speaking, pre-tax contributions are better for higher earners because of the upfront tax break, Lawrence said. But if your tax bracket is lower, paying levies now with Roth deposits may make sense.

What is the difference between Roth and after-tax contributions? ›

Your employees' Roth deferrals are not taxed again if they're withdrawn in retirement. Other after-tax contributions are the same as taxable income. This means the government will treat these funds as ordinary income and can collect tax money when they're taken out in future.

Can I put money into an IRA instead of paying taxes? ›

IRAs are another way to save for retirement while reducing your taxable income. Depending on your income, you may be able to deduct any IRA contributions on your tax return. Like a 401(k) or 403(b), monies in IRAs will grow tax deferred—and you won't pay income tax until you take it out.

Can I contribute to my IRA if I'm not working? ›

Do you have to be employed to open a Roth IRA? You can open and contribute to a Roth IRA regardless of your employment status (full-time, part-time, or not working) so long as your contributions are equal to or below your earned income.

Why is it a bad idea to withdraw money from a retirement account to cover unexpected expenses? ›

You'll be missing out on the power of compound interest when you take money out of your retirement account. If you need money to cover an expensive, unforeseen event that's leaving you feeling stressed, the first place you should look is your emergency fund. That's the purpose of your emergency fund, after all.

What is the formula for pro-rata? ›

The amount due to each shareholder is their pro rata share. This is calculated by dividing the ownership of each person by the total number of shares and then multiplying the resulting fraction by the total amount of the dividend payment. The majority shareholder's portion, therefore, is (50 / 100) x $200 = $100.

How do you calculate pro-rata distribution? ›

Apply the pro rata formula: Plug the identified values into the formula: Pro Rata Share = (Individual Share / Total Shares) x Total Amount.

Does pro-rata rule apply to spousal IRA? ›

Things to Consider with the Pro-Rata Rule

IRAs are considered individual IRAs even for taxpayers filing a joint return. An individual IRA is not combined with the spouse's IRA for purposes of the pro-rata rule. You will use IRS Form 8606 to track your after-tax IRA balances.

Does rollover IRA affect pro-rata rule? ›

Yes, the pro-rata rule will apply since you had pre-tax funds in your traditional IRA on December 31, 2023. Therefore, part of your conversion will be taxable.

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