Moving money from your Thrift Savings Plan (TSP) into a Roth IRA is a big financial decision, and frankly, it's not for everyone. The core of this strategy is a trade-off: you agree to pay income tax on the entire amount you convert today in exchange for tax-free growth and, more importantly, tax-free withdrawals in retirement.

That upfront tax bill can be a tough pill to swallow, but the long-term benefit of having a bucket of money that the IRS can't touch later is a powerful incentive. It’s the central question every federal employee needs to ask themselves before making this move.

Why Consider a Rollover TSP Into Roth IRA

When you leave federal service, you’re at a crossroads with your TSP. It's a fantastic, low-cost plan while you're working, no doubt about it. But retirement is a different ballgame, and your financial needs will almost certainly change. This is where a rollover TSP into Roth IRA can offer some compelling advantages for a more flexible, tax-savvy retirement.

The biggest driver for most people is tax diversification. By converting your pre-tax TSP money into a Roth IRA, you're essentially ripping off the tax band-aid now. Yes, it creates a taxable event in the year you do it, but it also insulates that money from any future tax rate hikes. This gives you a guaranteed source of tax-free income when you’ll likely need it most.

Key Benefits of a Rollover

Moving your funds out of the TSP opens up a whole new level of control and opportunity for your nest egg. I've seen countless federal employees make this move, and it usually boils down to a few key reasons.

• Expanded Investment Choices: Let's be honest, the TSP's fund lineup is simple, but it's also restrictive (G, F, C, S, and I funds). An IRA at a brokerage like Schwab or Fidelity blows the doors wide open. You get access to a massive universe of individual stocks, ETFs, mutual funds, and bonds, which lets you truly customize your portfolio to your specific goals.
• Greater Withdrawal Flexibility: Roth IRAs are just more flexible when it comes to getting your money out. This can be a lifesaver if you have unexpected expenses or want to manage your income streams more precisely in retirement without hitting the same roadblocks you might with TSP rules.
• No Required Minimum Distributions (RMDs): This is a huge one. Traditional TSPs and Traditional IRAs force you to start taking money out at a certain age, whether you need it or not. Roth IRAs have no RMDs for the original owner. This means your money can keep growing tax-free for your entire life, making it an incredible tool for legacy planning.

The decision to roll over your TSP is fundamentally about trading the simplicity and low costs of the TSP for the flexibility, investment control, and tax advantages of a Roth IRA. It's a strategic move to optimize your retirement income streams.

A New Option on the Horizon

Now, before you rush to make a decision, there's a game-changing development you need to know about. Starting in January 2026, the SECURE 2.0 Act will allow federal employees to perform Roth conversions directly inside their TSP accounts.

This is a big deal. It means you'll be able to get the same Roth tax treatment without ever having to move your money out of the TSP's low-cost funds. This new in-plan conversion option adds another layer to your strategy.

Suddenly, you have three distinct paths to consider:

1. Keep everything in your Traditional TSP.
2. Execute a rollover TSP into Roth IRA at an outside institution.
3. Wait and use the new in-plan Roth TSP conversion feature.

Each path has different consequences for your fees, investment options, and overall tax plan. For a deeper dive, you can learn more about how the Roth TSP works in our dedicated guide: https://federalbenefitssherpa.com/post/what-is-a-roth-tsp-a-guide-for-federal-employees

To put it all in perspective, here's a look at how things will stack up once this new option is available.

TSP vs Roth IRA Rollover Key Differences in 2026

Feature	Thrift Savings Plan (TSP)	Roth IRA Rollover
Investment Options	Limited to 5 core funds (G, F, C, S, I) and L Funds.	Virtually unlimited: stocks, bonds, ETFs, mutual funds, etc.
Administrative Fees	Extremely low; typically among the lowest in the industry.	Varies by brokerage; can be low-cost but often higher than TSP.
Withdrawal Rules	More restrictive rules and processes for distributions.	Highly flexible; contributions can be withdrawn anytime tax/penalty-free.
Required Minimum Distributions (RMDs)	Required for Traditional TSP balance, not for Roth TSP balance.	Not required for the original Roth IRA owner.
Estate Planning	Limited beneficiary options; inheritance rules are rigid.	More flexible options for beneficiaries, including "Stretch IRA" provisions.
Simplicity	Simple, "set-it-and-forget-it" system.	Requires more active management and investment knowledge.

Ultimately, whether you stick with the TSP's new internal conversion or opt for an external Roth IRA rollover depends entirely on what you value most: the rock-bottom costs and simplicity of the TSP or the expanded control and flexibility of an IRA.

Untangling the Roth Conversion Five-Year Rule

When you start digging into the idea of a rollover from your TSP into a Roth IRA, you’ll quickly run into something called the "five-year rule." Frankly, this is one of the most confusing parts of the whole process, and a simple misunderstanding can leave you with a surprise tax bill or penalties down the road.

It's not just one rule, either. Think of it as a set of timers designed to make sure you're using the Roth for its intended purpose: long-term retirement savings. The IRS gives you the incredible perk of tax-free growth and withdrawals, but they want to see a real commitment in return.

The Two Clocks You Need to Watch

The easiest way to get your head around this is to imagine two separate stopwatches. One is for your regular Roth IRA contributions, and the other is for your rollovers or conversions. They can, and often do, run at the same time.

• The Main Account Clock: This one is pretty straightforward. It starts on January 1st of the very first year you put money into any Roth IRA. Once five years have passed and you’re over age 59½, the earnings in your account are officially "qualified." That means you can pull them out completely tax-free.
• The Conversion Clock: This is where federal employees doing a TSP rollover need to pay close attention. Every single time you convert pre-tax money—like the funds coming from your Traditional TSP—a brand new, separate five-year clock starts just for that chunk of money. The clock for each conversion starts on January 1st of the year you made the transfer.

This distinction is absolutely critical. You might have satisfied the main five-year clock on your account years ago, but a recent conversion from your TSP will still be "cooking" and subject to its own five-year holding period.

Here's the bottom line: Each rollover from your TSP into a Roth IRA starts a new five-year waiting period for those specific funds. If you’re planning to do this over several years to manage your tax bill, you’ll be juggling multiple five-year clocks at once.

How the IRS Views Your Withdrawals

Thankfully, the IRS has a very specific withdrawal order that actually works in your favor. When you take money out of your Roth IRA, it’s not just one big pot. The funds are considered to come out in a clear sequence:

1. Your Direct Contributions: First out the door are all your regular, after-tax contributions. This money is always yours to take, tax-free and penalty-free, at any time, for any reason. You already paid tax on it.
2. Your Converted Money: Next up are the amounts you converted, like the funds from your rollover TSP into a Roth IRA. Since you paid taxes on this money at the time of the conversion, the withdrawal itself is tax-free. However—and this is a big "however"—if you’re under 59½ and that specific conversion is less than five years old, you could get hit with a 10% early withdrawal penalty.
3. Your Earnings: The very last money to be touched is the investment growth. This is the only portion that needs to be fully "qualified"—meaning your main account clock has run for five years and you’re over 59½—to be withdrawn tax and penalty-free.

A Real-World Scenario: Robert’s TSP Rollover

Let's put this into practice. The five-year rule is a crucial detail for the 1.2 million federal employees over age 50 who are thinking about retirement.

Imagine a federal employee, Robert. Starting in 2026, the clock begins on January 1 of the conversion year. From 2021-2026, he contributed $120,000 directly to his Roth TSP. In 2026, he also converts $50,000 from his traditional TSP. By 2027, the account has $30,000 in earnings, bringing his total to $200,000.

If he needs to withdraw $40,000 in 2027, here's how the IRS would see it:

• The withdrawal comes from his $120,000 contribution basis first, so it's completely tax-free and penalty-free.
• The $50,000 conversion is separate and, because it was held for over a year, avoids immediate penalties.
• However, the earnings portion of that withdrawal—calculated as $6,000 ($30k earnings / $200k total * $40k withdrawal)—is considered non-qualified. This portion would face ordinary income tax plus a 10% penalty, resulting in a $776.50 total penalty hit.

If you're considering an in-plan conversion within the TSP itself, you can learn more about how the five-year rule works in this detailed breakdown of in-plan conversions.

Understanding this pecking order is the key to strategically accessing your money in retirement. It gives you the flexibility to tap certain funds from your Roth IRA without accidentally triggering taxes or penalties, even while some of your more recent conversions are still maturing.

A Practical Walkthrough of the Rollover Process

Alright, let's get down to the brass tacks of moving your money. When you decide to roll your TSP into a Roth IRA, your first big choice is how you'll get the funds from point A to point B. You've got two main options: a direct rollover or an indirect one.

Frankly, this decision can make or break the experience. Choosing the wrong path can lead to surprise tax bills and a whole lot of unnecessary paperwork.

Direct vs. Indirect Rollover: Why One Is Almost Always Better

A direct rollover, sometimes called a trustee-to-trustee transfer, is the cleanest and most straightforward way to do this. Your money goes straight from the TSP to your new Roth IRA provider. You never touch it. This is the path of least resistance because it completely avoids any tax withholding and keeps the process simple.

Then there's the indirect rollover, or 60-day rollover. This route is much trickier. The TSP cuts you a check, but here’s the kicker: they are required by the IRS to automatically withhold 20% for federal taxes from your pre-tax money.

You then have just 60 days to deposit the entire original amount (including the 20% they withheld) into your Roth IRA. That means you have to find that missing 20% somewhere else—like your personal savings—to make the new account whole.

If you don't, the portion you couldn't replace is treated as a taxable distribution and could even get hit with a 10% early withdrawal penalty. For nearly every federal employee I've worked with, the direct rollover is the smarter, safer bet.

Here’s a quick breakdown to help you visualize the two paths.

Direct vs Indirect Rollover Process

Consideration	Direct Rollover (Trustee-to-Trustee)	Indirect Rollover (60-Day)
How Funds Move	TSP sends money directly to your new IRA custodian. You never touch the funds.	TSP sends a check to you, minus 20% mandatory tax withholding.
Tax Withholding	None. The transfer is not a taxable event until you file for the year of conversion.	Mandatory 20% federal tax withholding on pre-tax funds.
Your Responsibility	Fill out Form TSP-70 correctly with IRA custodian details.	Deposit the full original amount (including the withheld 20%) within 60 days.
Primary Pro	Simple, clean, and avoids withholding complications. No risk of missed deadlines.	You briefly have access to the funds (though using them is risky).
Primary Con	Less flexibility, as you never have direct control over the funds during the transfer.	Complex. You must replace the 20% out-of-pocket to avoid taxes and penalties. High risk.

As you can see, the direct rollover process is designed to be far more user-friendly and less prone to costly errors.

Executing the Direct Rollover

So, you've decided on the direct rollover and have already opened your new Roth IRA with a provider like Fidelity, Vanguard, or Charles Schwab. Great. The next step is to get the official paperwork rolling.

You’ll need to fill out and submit Form TSP-70, Request for a Full Withdrawal. This is your formal instruction to the TSP, telling them exactly what to do with your money. On the form, you’ll specify that you’re doing a direct rollover and provide the details of your new Roth IRA custodian, including their name and your new account number. Double-check everything here—a simple typo can delay the whole transfer.

My Pro Tip: Before you even think about submitting Form TSP-70, give your new IRA provider a call. Ask them for their "rollover instructions" or a "letter of acceptance." Many firms have a ready-made document with all the right details (like the exact payee name and mailing address) that you can simply attach to your TSP form. This little step can prevent a world of headaches.

Communicating with Your Providers

A smooth transfer is all about clear communication. You don't need fancy language, just be direct.

Here’s a simple script you can use when you call your new IRA custodian:

"Hello, I'm a federal employee and I'm planning to do a direct rollover from my TSP into a Roth IRA with you. Could you please confirm the exact information I need for my TSP-70 withdrawal form? I need the correct payee name and the mailing address for the rollover check."

This simple conversation makes sure everyone is on the same page. For an even more detailed breakdown, our guide on how to roll over your TSP to an IRA dives deeper into the specifics.

When you convert funds, you also trigger an important timeline you need to track.

As this shows, every conversion starts its own five-year clock. This is a crucial detail to remember for your future withdrawal strategy.

Reporting the Rollover on Your Taxes

Once the money has moved, you're not quite done. You have to get the tax reporting right. Come January of the next year, keep an eye on your mailbox for two key documents.

• Form 1099-R from the TSP: This reports the distribution from your TSP. Box 1 shows the gross amount you rolled over, and Box 2a will show the taxable amount—which is the entire pre-tax balance you converted.
• Form 5498 from your IRA Custodian: This form confirms to the IRS that the funds landed safely in your Roth IRA. It's the other side of the transaction.

When you file your taxes, the full amount of your traditional TSP rollover is added to your ordinary income for the year.

One last piece of the puzzle: if you've ever made after-tax (non-deductible) contributions to your TSP, you’ll also need to file Form 8606, Nondeductible IRAs. This form is critical for tracking your "basis" (the after-tax money) so you don't end up paying tax on the same dollars twice. Getting this right is non-negotiable for keeping the IRS happy and your financial plan on track.

Tackling the Tax Bill From Your TSP Conversion

Let's get straight to the point. The most challenging part of a rollover from your TSP into a Roth IRA isn't the paperwork; it's the tax bill you'll face. Every single dollar you move from your traditional, pre-tax TSP into a Roth IRA is added to your ordinary income for that year.

There’s no getting around it. This is the core trade-off of a Roth conversion: you’re paying the taxes now on that retirement money so you can enjoy tax-free withdrawals later. Be warned, a large conversion can easily bump you into a much higher tax bracket, which makes having a smart tax strategy absolutely critical.

Timing Is Everything: Finding Your "Gap Year"

One of the best ways to soften the tax blow is to time your rollover for a low-income year. For many feds, a golden opportunity pops up in the year you retire but before you start taking Social Security or your FERS pension.

Think about it—during this "gap year," your income could be the lowest it has been in decades. That puts you in a much lower tax bracket. Pushing the rollover through during this window means the new income from the conversion gets taxed at a far more favorable rate.

Keep an eye out for these strategic windows:

• The Year You Retire: If you hang up your hat mid-year, your total income is naturally lower than a full 12 months of work.
• Between Jobs: Moving from federal service to another career? That gap in employment can be the perfect time.
• A "Sabbatical" Year: Any planned year with a significant drop in income can serve as your ideal conversion opportunity.

How to Estimate Your Potential Tax Liability

Never, ever go into a conversion flying blind. Even a quick, "back-of-the-napkin" calculation will help you brace for the tax bill and figure out how much you can comfortably convert at once.

Let’s look at a real-world example. Meet Molly, a fed planning her retirement.

• Her Projected Income: In her first year of retirement, Molly plans to do some part-time work, bringing in $40,000.
• Her Planned Conversion: She wants to move $100,000 from her traditional TSP into a new Roth IRA.
• Her New Taxable Income: Suddenly, her taxable income for the year jumps to $140,000 ($40,000 + $100,000).

Looking at the 2024 tax brackets for a single filer, her federal tax situation changes dramatically. Without the conversion, her $40,000 income would sit comfortably in the 12% bracket. With it, a huge chunk of that $140,000 is now taxed at the higher 22% and 24% marginal rates.

Here's a critical piece of advice I give all my clients: The money to pay the taxes on the conversion must come from a non-retirement account, like your savings, checking, or a brokerage account. If you pull money from your TSP to pay the tax, that withdrawal is also taxable and could come with a penalty.

The rollover TSP into Roth IRA strategy has become incredibly popular, with feds moving over $25 billion annually in recent years to gain tax diversification. To get a bigger picture of how to manage your tax exposure, it's worth exploring these 10 tax-saving strategies.

While many have opted for the flexibility of an IRA, it’s also important to know that a new in-plan TSP conversion option is coming in 2026. This will let feds get Roth benefits while staying within the TSP's famously low-cost funds, which have seen an impressive 8.5% average annualized return since 1988.

A Heads-Up on New Catch-Up Contribution Rules

For higher-earning federal employees, there’s a new rule on the horizon. Starting in 2026, if your wages from the previous year were more than $145,000, any catch-up contributions you make to your TSP must go into the Roth TSP.

This means you’ll already be paying taxes on those extra contributions during the year. It's a small detail, but you need to factor it into your overall tax plan. It slightly lowers the pre-tax balance you have available to convert later, but it also means you're chipping away at that Roth tax burden in advance. To learn more, check out our guide on how to reduce taxes in retirement as a federal employee.

Planning for the tax hit is, without a doubt, the most crucial part of a successful rollover. By timing it right and having the tax money set aside, you can turn this powerful move into a financial victory, not a tax-season nightmare.

Common Rollover Mistakes You Need to Avoid

Moving your TSP funds into a Roth IRA can be a fantastic strategic move, but it's also a process filled with potential pitfalls. Even experienced federal employees can make simple errors that lead to a surprise tax bill, hefty penalties, or just plain poor long-term results.

Think of this as a final pre-flight check before you pull the trigger. Knowing what can go wrong is the best way to make sure everything goes right. Let's cover the most common slip-ups I see and how you can steer clear of them.

Miscalculating the Tax Impact

By far, the biggest and most costly mistake is underestimating the tax bill. Remember, when you convert pre-tax TSP money to a Roth IRA, the entire amount you move is added to your taxable income for that year.

A $150,000 rollover doesn't just get taxed—it can easily launch you into a much higher marginal tax bracket. Someone comfortably in the 22% bracket could suddenly find a large chunk of their income being taxed at 24% or even 32%. Without proper planning, the tax hit can completely undermine the benefits of the conversion.

The Fix: Don't just estimate. Before you do anything, you need to model the outcome. Work with a tax professional or use robust tax software to see exactly how different conversion amounts will affect your total tax liability for the year. A smart strategy is often to break up a large conversion over several years to keep yourself in a lower tax bracket.

Botching the 60-Day Indirect Rollover

While a direct rollover is the safest route, some people choose the indirect method, where the TSP mails them a check. Honestly, this path is riddled with problems. First off, the TSP is legally required to withhold 20% for federal taxes right off the top.

You then have exactly 60 days to deposit the full, original rollover amount into your Roth IRA. That means you have to find that missing 20% somewhere else—like your savings account—and add it to the check from the TSP to make the rollover whole. If you miss that 60-day deadline or fail to make up the withholding, the entire amount is treated as a taxable distribution. Ouch.

Where Indirect Rollovers Go Wrong

• Missing the Deadline: The 60-day clock is unforgiving. Life gets in the way, a check gets lost, and suddenly you’ve blown the deadline. This is an expensive and irreversible error.
• Forgetting to Replace the 20%: This is a common point of confusion. Many people don't realize they have to come up with the withheld 20% out-of-pocket, resulting in an accidental, and taxable, distribution.
• Breaking the One-Per-Year Rule: The IRS only lets you do one indirect IRA-to-IRA rollover in any 12-month period. Getting this wrong can invalidate the rollover and create a real mess.

The solution here is simple: always opt for a direct, trustee-to-trustee transfer. The money goes straight from the TSP to your new IRA custodian without ever passing through your hands. It’s clean, simple, and avoids all these potential headaches.

Choosing a High-Fee IRA Provider

You're leaving the Thrift Savings Plan, which is famous for having some of the lowest administrative fees in the business. A quiet but devastating mistake is to rollover your TSP into a Roth IRA at a financial institution that charges high fees.

A 1% annual advisory fee might not sound like much, but it’s a massive drag on your returns over time. On a $500,000 portfolio, that's $5,000 gone every single year. Over a 20-year retirement, those seemingly small fees could siphon hundreds of thousands of dollars from your nest egg.

Neglecting to File the Right Tax Forms

Once the money has moved, you're not quite done. The final step is reporting the transaction correctly to the IRS. In January of the following year, the TSP will send you a Form 1099-R detailing the distribution. You have to report this information perfectly on your tax return.

If you don't, you can bet on getting a notice from the IRS. Their system will see a large withdrawal from a retirement account and no corresponding income reported on your return—a major red flag. And if you converted any after-tax funds from your traditional TSP, you absolutely must file Form 8606 to track your basis. Skipping this step could mean getting taxed twice on the same money. Proper paperwork is not optional.

Questions That Always Come Up About TSP to Roth Rollovers

Even when you have a good handle on the process, moving money from your TSP to a Roth IRA is a big decision, and specific questions are bound to surface. Let's walk through some of the most common ones I hear from federal employees to clear up any confusion.

Can I Just Roll Over a Piece of My TSP Account?

Absolutely. In fact, for most people, this is the smartest way to do it. You don't have to move your entire TSP balance at once. A partial rollover is a powerful strategy for managing the tax bill that comes with a conversion.

Instead of taking a massive tax hit in a single year, you can convert smaller chunks over several years. Think of it like a "Roth conversion ladder." This approach lets you carefully manage how much extra income you report, potentially keeping you from getting bumped into a higher tax bracket.

There's another great reason to do a partial rollover: keeping a foot in the TSP. Many feds I talk to do this specifically to hold onto the G Fund. You just can't find another investment that offers its combination of principal protection and ultra-low costs anywhere else.

A partial rollover really gives you the best of both worlds. You get to start building that tax-free Roth IRA bucket while still taking advantage of the TSP's low fees and unique funds. It's all about control.

What if I Have a TSP Loan?

This is a deal-breaker, so pay close attention. You cannot roll over any portion of your TSP account if you have an outstanding loan. The TSP requires that loan to be paid back in full before they’ll process any rollover request, whether it's for the full amount or just a part of it.

If you separate from federal service with that loan still unpaid, the clock starts ticking. You have 90 days to pay it back. Miss that deadline, and the TSP declares the entire unpaid balance a "taxable distribution." That means it gets hit with ordinary income tax, plus a nasty 10% early withdrawal penalty if you're under age 59½.

This is a financial landmine you absolutely want to sidestep. Always, always have a plan to clear any TSP loans before you even think about starting a rollover.

What About the New TSP In-Plan Conversion? Should I Just Do That?

This really comes down to what you're trying to accomplish. The TSP's new in-plan Roth conversion option (slated for 2026) is a fantastic tool, but it serves a different purpose than a rollover to an outside IRA.

The In-Plan Conversion might be for you if:

• You love the TSP's "set it and forget it" simplicity and its incredibly low fees (which average just 0.04%).
• You want the tax benefits of a Roth account but have zero interest in actively managing your own investments.
• Your main goal is simply to have your TSP withdrawals be tax-free in retirement, without ever leaving the system.

A Rollover to a Roth IRA is likely a better fit if:

• You want the freedom to invest in practically anything—individual stocks, specific ETFs, bonds, real estate funds (REITs), you name it.
• You need more flexible access to your money. Roth IRAs let you withdraw your direct contributions (not the converted amount) anytime, tax-free and penalty-free.
• You're looking to consolidate your various retirement accounts under one roof, making management and estate planning much simpler.

The new TSP feature is about adding Roth tax treatment to your current plan. A rollover from your TSP into a Roth IRA is about fundamentally changing your investment strategy to gain more control and a world of new options.

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At Federal Benefits Sherpa, we help federal employees make these critical decisions with confidence every single day. The rules around your TSP, FERS, and Social Security can feel overwhelming, but you don't have to figure it all out on your own. Book your free 15-minute benefit review with our team and let's get you on the path to a secure retirement.