An in-plan 401k Roth conversion lets you move after-tax contributions from your traditional 401k to a Roth 401k account within the same plan. This strategy offers tax-free growth potential for those who meet specific requirements.
After-tax contributions are made to your traditional 401k with post-tax dollars. You can convert these contributions to a Roth 401k, which allows for tax-free withdrawals in retirement. The conversion process involves transferring the after-tax portion of your 401k balance to the Roth 401k account.
There are two primary types of conversions related to after-tax contributions:
To perform an in-plan 401k Roth conversion, your employer's 401k plan must allow it. Not all plans offer this option., you must have after-tax contributions in your traditional 401k account. The IRS allows these conversions regardless of income limits that apply to Roth IRA contributions.
The converted amount is not subject to income tax at the time of conversion because it was contributed with after-tax dollars. However, any earnings on those contributions are taxed and must stay in the traditional 401k. Withdrawals from the Roth 401k are tax-free in retirement, provided the account has been open for at least five years and you are over 59½.
Many people confuse after-tax contributions with Roth contributions. After-tax contributions are made to a traditional 401k and are subject to different rules. Roth contributions are made directly to a Roth 401k or Roth IRA and have their own set of contribution limits and withdrawal rules.
Suppose you have $50,000 in after-tax contributions in your traditional 401k. Your plan allows in-plan Roth conversions. You decide to convert $20,000 of the after-tax contributions to your Roth 401k. The $20,000 is moved tax-free, and any earnings on those contributions remain in the traditional 401k and are taxed upon withdrawal.
In-plan Roth conversions offer several advantages, including tax-free growth and withdrawals in retirement. They also provide flexibility in managing your taxable income during retirement., converting after-tax contributions can simplify your retirement accounts by consolidating them into a Roth 401k.
For more detailed guidance on converting after-tax 401k to Roth 401k, see converting after-tax 401k to Roth 401k.