If you’ve been following our discussion on the ROTH TSP, you already know how powerful it can be for federal employees seeking tax-free income in retirement. Beginning in January 2026, the Thrift Savings Plan (TSP) introduced a long-awaited enhancement: In-Plan ROTH Conversions. This new feature will give Feds even more control over how and when they pay taxes on their retirement savings. Let’s break down what this change means and how it can fit into a broader financial strategy.
What Is an In-Plan ROTH Conversion?
An in-plan conversion allows you to move money that’s already sitting in your traditional TSP balance directly into your ROTH TSP balance. You’ll pay income tax on the converted amount in the year you make the switch, but after that, the money grows and can be withdrawn tax-free. And, if you recall from Part 1, there are no RMD requirements on Roth Funds. In short, you’re pre-paying your tax bill now to secure tax-free growth and withdrawals later.
Why This Matters
Before this new feature, Feds who wanted to convert traditional TSP money to Roth had only one option: withdraw funds, roll them into an outside IRA, and then perform a Roth conversion there. That meant leaving the TSP system and often losing access to its low fees and simplicity. With in-plan conversions, you can now stay inside the TSP while still taking advantage of Roth flexibility. This preserves the simplicity, oversight, and competitive costs the TSP is known for — all while opening up a new tax-planning lever.
This also allows Feds who are still working but have not reached age 59.5 to take an in-service withdrawal to access this planning strategy, as they are eligible to use the in-plan conversion feature.
How It Works
The in-plan Roth conversion feature launched in January 2026 and is available to both active and separated participants, as well as spousal beneficiaries. The TSP has indicated that conversions will require a minimum of $500 per transaction, giving participants flexibility in how much they choose to convert. When a conversion is made, the amount transferred from the traditional TSP to the Roth TSP will be added to that year’s taxable income, meaning participants will owe income taxes on the converted amount. Importantly, those taxes must be paid using funds outside the TSP, since the converted balance itself cannot be used to cover the bill. Once the funds are converted, they move into the Roth TSP and begin the standard five-year clock for qualified, tax-free withdrawals.
Who Might Benefit Most
Federal employees in lower tax brackets today, or those who expect tax rates to rise in the future, stand to benefit most from this new option. Paying taxes now, while rates are relatively low, can set the stage for decades of tax-free growth and more control over income in retirement. For those who anticipate being in a higher tax bracket later, converting some funds to Roth while still working can be an effective long-term hedge against future tax increases.
Additionally, Feds nearing retirement or already retired but not yet subject to Required Minimum Distributions (RMDs) may find in-plan conversions particularly valuable. The window between retirement and age 73 often presents an opportunity to make partial conversions at lower tax rates, helping to reduce future RMDs and create a more balanced, tax-diversified retirement income plan. Having both Traditional and Roth TSP balances provides greater flexibility to manage taxes strategically during retirement.
Smart Strategies to Consider
Implementing in-plan Roth conversions within the TSP should never be an impulsive move; it’s a powerful tool when used thoughtfully. Here are several strategies Feds can use to try to make the most of this new opportunity.
Start with partial conversions. Instead of converting your entire traditional balance at once, consider breaking the conversion into smaller amounts spread over several years. This approach can help you “fill up” your current tax bracket without accidentally bumping yourself into a higher one. For example, a retiree might strategically convert enough each year to stay within the 22% tax bracket, avoiding unnecessary jumps in taxes owed. This measured pace can also give you time to adjust based on future tax changes or life events.
Plan ahead for the tax bill. Since taxes on converted amounts must be paid from outside the TSP, make sure you have cash or other liquid assets ready before initiating a conversion. Using your TSP funds to pay taxes defeats the purpose; you’d owe tax on that withdrawal too. Coordinating the conversion with a year of lower income (such as after retirement but before Social Security or RMDs begin) can further reduce the tax impact and make the payment easier to handle.
Understand the five-year rule. Each conversion begins its own five-year holding period before earnings can be withdrawn tax-free. If you make multiple conversions over time, each one will have a different start date. This doesn’t complicate the process too much, but it’s something to track carefully, especially if you anticipate needing those funds in early retirement.
Coordinate with your larger plan. The goal isn’t just minimizing taxes; it’s maximizing flexibility and control over retirement income. By holding both Traditional and Roth TSP balances, you can choose where your income comes from each year: pre-tax or tax-free, depending on current tax laws, healthcare costs, or other financial goals. This balance can provide a significant advantage as tax laws evolve and your retirement needs shift.
The Bottom Line
In-plan Roth conversion option represents one of the most meaningful upgrades to the TSP in years. For the first time, federal employees will be able to shift traditional, pre-tax dollars into their Roth TSP without ever leaving the plan — keeping access to low fees, familiar investment options, and the simplicity they’ve come to rely on. Used wisely, this new feature can be a powerful tool for managing taxes in retirement, creating flexibility in income planning, and strengthening long-term financial independence. Whether you’re early in your federal career or already mapping out your retirement withdrawals, it’s worth exploring how conversions might fit into your overall plan. The key is to be intentional. Take time to model different tax scenarios, review your income sources, and align your strategy with your future goals.
Working with a professional who understands both federal benefits and the TSP system can make all the difference in making a plan that works for you. With thoughtful timing and planning, in-plan conversions can serve as a bridge between today’s tax environment and tomorrow’s financial freedom. Schedule a consultation today.
Prepare. Plan. Prosper.
Wes Battle CFP®, ChFEBC℠, AIF®, RICP® proudly hails from a Fed family. Beginning with his grandfather, their service to the country reaches back 70 years. Wes brings nearly two decades of financial experience to his service to federal employees and works to treat them as family.
James "Wes" Battle is a Financial Planner - Securities offered through Cetera Wealth Services, LLC, member FINRA/SIPC. Advisory Services offered through Cetera Investment Advisers LLC, a registered investment adviser. Cetera is under separate ownership from any other named entity. 2101 Gaither Rd., Ste 600, Rockville, MD 20850. The opinions contained in this material are those of the author, and not a recommendation or solicitation to buy or sell investment products. This information is from sources believed to be reliable, but Cetera Wealth Services, LLC cannot guarantee or represent that it is accurate or complete. For a comprehensive review of your personal situation, always consult with a tax or legal advisor. Neither Cetera Wealth Services, LLC nor any of its representatives may give legal or tax advice.
All investing involves risk, including the possible loss of principal. There is no assurance that any investment strategy will be successful. Converting from a traditional account to a Roth account is a taxable event. A Roth account offers tax free withdrawals on taxable contributions. To qualify for the tax-free and penalty-free withdrawal or earnings, a Roth IRA must be in place for at least five tax years, and the distribution must take place after age 59 ½ or due to death, disability, or a first-time home purchase (up to a $10,000 lifetime maximum). Depending on state law, Roth IRA distributions may be subject to state taxes. A diversified portfolio does not assure a profit or protect against loss in a declining market. Tax Free - Income may be subject to local, state and/or the alternative minimum tax.