The Five Options for Your TSP at Retirement (Explained Without Jargon)

Here's a small experiment worth running on yourself. Without looking anything up, name the choices you have for your TSP the day you separate from federal service.

Most feds get two. Usually "leave it there" and "roll it over" — the two that get talked about most, for reasons that have more to do with marketing than with your situation. There are five. Knowing all five is the difference between choosing something and defaulting into it.

So let's walk them. Read what follows as a menu, not a league table. There is no universally correct answer here, and the honest position is that the right one depends entirely on facts about you that this article cannot know.

Option 1 — Leave it in the TSP

What it does. Nothing changes. You separate, and your balance stays exactly where it is. You keep the TSP's fund lineup, you keep its administrative cost structure, and you can still move money between funds. Your money doesn't get evicted when you retire.

What it's good at. Cost and simplicity, mostly. The TSP's administrative costs are famously low, and low costs are one of the few things in this whole area that are knowable in advance rather than forecast. It's also good at something people undervalue: not making an irreversible decision while you're busy retiring. Retirement is a chaotic few months. Choosing to leave things alone until the dust settles is a legitimate strategy, not a failure to act.

What to understand. Leaving it there doesn't, by itself, turn your balance into monthly income — it's a holding decision, not an income decision. And the TSP's withdrawal mechanics are more rigid than some alternatives; the flexibility you'd have in other vehicles isn't all there.

What it costs you. Optionality, in a narrow sense. You're not accessing choices that exist outside the TSP. But you're also not spending anything to keep the door open, which is unusual.

One thing worth saying plainly: be sceptical of anyone who treats "leave it in the TSP" as self-evidently the wrong answer. For a great many federal employees it's a perfectly sound choice. When you hear it dismissed quickly, that tells you something about the incentives in the room, not about the option.

Option 2 — Installment payments

What it does. You instruct the TSP to pay you on a schedule — monthly, quarterly, or annually. You can choose a fixed dollar amount, or have the payments calculated based on life expectancy. Within the TSP's rules, you can make changes to installments later.

What it's good at. Turning a balance into something that behaves like a paycheque, while the money stays inside the TSP and keeps its cost structure. For people whose main problem is "I've spent 30 years being paid on the 15th and now I have a pile of money instead," this addresses the actual problem.

What to understand. This is the big one, and it's easy to gloss over: the payments last as long as the money does. A fixed amount drawn from a finite balance is arithmetic, not income for life. If the balance runs out, the payments stop. That's not a flaw — it's just what this option is. It's a schedule for spending your own money, and it should be understood as one.

What it costs you. Less flexibility than a lump sum, more than a one-way conversion. Each payment is generally a taxable event in the year you receive it, spread across years rather than concentrated in one.

Option 3 — A lump sum, full or partial

What it does. You take some or all of the balance out. One sentence to describe, and the easiest of the five to get badly wrong.

What it's good at. Access. If you have a defined need — a mortgage to clear, a specific plan — a partial withdrawal does exactly what it says. There's no mystery to it.

What to understand. Taxes, and it's usually taxes that people underestimate. A large withdrawal is a taxable event in the year you take it. Pulling a big number out in a single year can interact with your tax situation in ways that aren't obvious until the return gets filed. There are withholding rules attached. Depending on your age and circumstances, there may be early-withdrawal considerations too.

None of this is a reason not to do it. It's a reason to model it — with someone who knows your actual tax picture — before the paperwork goes in rather than after. The order of operations matters more here than anywhere else on this list.

What it costs you. Potentially the most, and least reversibly. Money withdrawn and taxed can't be un-withdrawn. Of the five, this is the option where "understand it first" carries the most weight.

Option 4 — The TSP's lifetime income option

What it does. The TSP offers a way to convert part or all of your balance into payments that continue for life, purchased through the TSP's outside provider. You hand over a sum; it hands back a defined payment on a schedule, for as long as you live. There are variations depending on the features you select — including arrangements that continue payments to a surviving spouse.

What it's good at. Predictability, and one specific job the other four don't do. It's the option that most directly answers the question what if I live a long time? Options 2 and 3 both eventually run into the arithmetic of a finite balance. This one doesn't, by design.

What to understand. It is generally a one-way door. Once converted, that portion of the balance isn't sitting there as a balance any more — you've exchanged it for a stream of payments. You're trading flexibility and access for certainty of payment.

What it costs you. Access to the money, and the ability to change your mind. Whether that trade makes sense depends on your other income, your health, your spouse's situation, and honestly your temperament — not on a chart, and not on anybody's enthusiasm. Someone with a pension that already covers their spending is asking a completely different question here than someone with a large gap.

Option 5 — Transfer or roll it over

What it does. You move the balance out to an IRA or another eligible employer plan. Done as a direct transfer, this is generally not a taxable event at the time of the move.

What it opens. A wider menu than the TSP's own, and different withdrawal mechanics. The TSP's fund lineup is deliberately narrow. Outside it, the range of choices is enormous — which is genuinely useful to some people and genuinely a liability to others.

What it closes. The TSP's cost structure, which you're unlikely to beat by accident. Access to the G Fund, which has no exact private-sector equivalent. And it can change how certain rules apply to you, in ways worth checking against your own circumstances rather than assuming.

What to understand. This option gets marketed to federal employees more aggressively than the other four combined. That's a fact about the industry, not a verdict on the option — it can be entirely reasonable for the right person. But it does mean the information you encounter about it in the wild is unusually likely to be arriving from someone with a stake in your answer. Understand it in both directions: what it opens and what it closes.

Putting the five together

You may have noticed these aren't strictly exclusive. Partial choices exist, and combinations are often where real situations land — some left in, some taken as installments, some converted. The five are the building blocks, not five doors where you pick one and the others vanish.

What decides between them isn't which one sounds best in an article. It's the arithmetic of your own situation: what your pension and Social Security are expected to cover, and what's left over for your TSP to handle. A big gap and a small gap point at genuinely different options. We wrote that exercise out in The FERS Pension Gap, and the full framework for walking the decision in order is in The TSP Secure Path.

The goal isn't to leave here knowing your answer. It's to leave able to tell education from a pitch — and to notice when a conversation is quietly only discussing three of the five.