A Roth conversion can be an important year-end tax strategy, but it is not a one-size-fits-all decision. Because Roth conversions are generally reported in the calendar year completed, December 31 is a key deadline for anyone considering whether to convert traditional retirement assets to a Roth IRA or, if available, to a designated Roth account inside an employer retirement plan.
The planning question is not simply whether Roth accounts are attractive. It is whether converting in a particular year fits your tax picture, income needs, estate goals, cash flow, and tolerance for future tax uncertainty.
What Is a Roth Conversion?
A Roth conversion moves assets from a pre-tax retirement account, such as a traditional IRA, into a Roth IRA. The converted amount is generally taxable as ordinary income in the year of conversion. In exchange, future qualified Roth IRA distributions may be tax-free if applicable requirements are met.
Roth conversion planning is often discussed in the context of IRAs, but that is not the only place it may apply. Some employer retirement plans, including certain 401(k), 403(b), or governmental 457(b) plans, allow what is commonly called an in-plan Roth conversion or in-plan Roth rollover. If the plan permits it, a participant may be able to move eligible pre-tax plan dollars into a designated Roth account within the same plan.
Not every plan offers this feature. The availability, process, eligible sources, tax reporting, and distribution rules depend on the specific plan document and administrator procedures. Before assuming an in-plan Roth conversion is available, participants should review the plan’s rules and confirm details with the plan administrator.
The IRS explains IRA distributions, conversions, and related reporting in its IRA distributions and withdrawals guidance. Because conversions can affect taxable income, they should be evaluated before implementation rather than after the fact.
Why Year-End Timing Matters
Roth conversions generally must be completed by December 31 to be included in that tax year. Unlike some retirement account contributions, there is not typically an extension until the tax filing deadline for completing a conversion for the prior year.
This makes November and December important review months. By then, you may have a clearer view of annual income, deductions, capital gains, business income, charitable gifts, and estimated tax payments. That information can help determine whether a partial conversion may fit within a targeted tax range.
Review Current and Future Tax Brackets
A common Roth conversion question is whether paying tax now may be preferable to paying tax later. This often depends on whether you expect your current tax rate to be lower, similar, or higher than your future tax rate.
Factors that may affect this analysis include:
- Retirement income needs.
- Future required minimum distributions.
- Pension, Social Security, or business income.
- Filing status changes.
- Beneficiary tax circumstances.
- Potential future tax law changes.
- Whether Roth conversion features are available in an employer plan.
No one can know future tax rates with certainty. For that reason, Roth conversion planning usually focuses on scenarios and trade-offs rather than predictions. A conversion can permanently accelerate taxable income into the current year, and it may not improve after-tax outcomes if future tax rates, spending needs, or estate circumstances differ from expectations.
Coordinate Investment, Tax, and CPA Review
Roth conversion planning is strongest when investment management and tax planning are reviewed together. Hungerford Financial is affiliated with Hungerford CPAs & Advisors, and coordination with a client’s tax professional can be valuable because the decision touches both portfolio structure and tax reporting. Tax advice should be confirmed with the client’s tax advisor unless a separate tax engagement applies.
A thoughtful review may include:
- Estimating taxable income before and after a possible conversion.
- Testing several conversion amounts rather than one all-or-nothing decision.
- Reviewing whether cash outside the IRA or employer plan is available to pay the tax.
- Confirming whether an RMD must be taken before conversion.
- Considering Medicare IRMAA thresholds, ACA subsidies, or financial aid impacts.
- Evaluating whether the converted assets have an appropriate long-term investment time horizon.
- Confirming whether an employer plan allows in-plan Roth conversions and how the plan reports them.
Using outside cash to pay the conversion tax may preserve more of the retirement account for Roth treatment. It can also reduce liquidity, create opportunity cost, and may not be appropriate if the cash is needed for living expenses, reserves, debt obligations, or near-term goals.
RMDs Must Come First
If you are already subject to required minimum distributions, the RMD for the year generally must be taken before a Roth conversion. An RMD itself cannot be converted to a Roth IRA or to a designated Roth account.
This rule is easy to overlook late in the year. If a conversion is processed before satisfying the RMD, the transaction may create avoidable complications. Anyone subject to RMDs should confirm distribution sequencing before initiating a conversion.
Employer Plan Conversions Need Plan-Specific Review
If a 401(k) or similar employer plan allows in-plan Roth conversions, the decision still requires careful review. Employer plans can differ in important ways from IRAs, including investment options, withdrawal rules, loan availability, administrative forms, spousal consent requirements, and plan-level restrictions.
An in-plan conversion may be worth discussing when someone has meaningful pre-tax plan assets, expects a lower-income year, or wants to build tax diversification within the plan. It may be less attractive if the conversion creates too much current taxable income, if the participant needs near-term liquidity, or if the plan’s administrative rules create added complexity.
The key point is that Roth conversion planning is not limited to IRAs. The plan must allow the feature, and the tax and cash flow implications should be reviewed before acting.
Watch the Five-Year Rules
Roth IRAs and designated Roth accounts have rules that may affect access to converted funds and earnings. These rules can be especially relevant if you expect to need the converted assets soon.
In general, Roth conversions are better suited for assets that may remain invested for a longer period. If you anticipate needing distributions within five years, review the potential tax and penalty treatment before converting.
Consider Estate and Beneficiary Planning
Roth conversions can also be part of estate planning. Roth IRAs are not subject to lifetime RMDs for the original owner, which may provide more flexibility during retirement. Beneficiaries may still be subject to inherited account distribution rules, including the 10-year rule in many cases, but qualified Roth distributions may be income tax-free.
That does not mean conversion is always beneficial. If beneficiaries are charities, a traditional IRA left directly to charity may already be tax-efficient. If beneficiaries are in lower tax brackets, the cost of converting during the owner’s lifetime may not be justified.
Key Takeaway
Roth conversion planning before December 31 is a tax strategy conversation, not a market-timing exercise. Consider reviewing your expected income, available cash for taxes, RMD status, five-year rules, beneficiary goals, and whether your employer plan permits in-plan Roth conversions before acting. If you would like help coordinating the investment and tax pieces, our team can help you evaluate the questions with your CPA or tax professional.
This article is for general educational purposes only and is not tax, legal, or investment advice. Roth conversions increase taxable income and may affect taxes, Medicare premiums, financial aid, subsidies, and other income-based items. Employer retirement plan features vary by plan and may not be available to all participants. Advisory services are offered only under a separate agreement. Information about services, fees, and conflicts is available in Hungerford Financial’s Form ADV brochure. Consult your tax advisor, financial professional, and plan administrator before completing a conversion. Hungerford Financial provides investment advisory services. Securities offered through United Planners Financial Services, member FINRA/SIPC. This article was prepared with the assistance of artificial intelligence and reviewed by our team for accuracy, clarity, and relevance before publication.
IRS, "Retirement Plans FAQs Regarding IRAs Distributions Withdrawals" 2026
IRS, "Retirement Topics: Designated Roth Account" 2026
FP Pathfinder, "Should I Consider Doing A Roth Conversion?" 2026