TSP withdrawal rules: your options after separating and the tax traps in each

Once you separate from federal service you can take money out of the Thrift Savings Plan four ways: single partial withdrawals, installment payments, a total withdrawal, or by purchasing a life annuity through the TSP's annuity provider. You can combine them, you can change installments whenever you like, and you choose whether each withdrawal comes from your traditional balance, your Roth balance, or both proportionally. The complications are not in the menu. They are in the penalty rules, the withholding, and the required minimum distributions.

The TSP Modernization Act removed most of the old restrictions that forced federal retirees into decisions they did not want. What remains is a plan with unusually low costs and reasonably flexible withdrawals, plus a handful of rules that catch people out because they differ from what applies to an IRA.

The four ways money comes out

Single withdrawals. After separation you can take a partial withdrawal of at least $1,000 whenever you want, subject to waiting 30 days between requests. There is no limit on how many you take over time. This is the option that makes the TSP workable as a flexible reserve rather than an all-or-nothing decision.

Installment payments. Monthly, quarterly or annual payments, either a fixed dollar amount you choose or an amount calculated from IRS life expectancy tables and recalculated each year. You can change the amount, change the frequency, stop payments, restart them, and take a single withdrawal on top of an ongoing installment stream. Changing the amount or frequency triggers a recalculation of how long the payments are expected to last, which matters for withholding.

Total withdrawal. The whole balance, paid to you, rolled over, or split between the two. Simple and usually the most expensive choice if taken as cash, for reasons covered below.

TSP life annuity. The TSP will use some or all of your balance to buy a life annuity from its annuity provider. This is a genuine irrevocable annuitisation: you exchange the account for a guaranteed income stream and give up access to the capital. Single life, joint life, with or without a cash refund or ten-year certain feature. The mechanics are the same as any single premium immediate annuity, and the same trade-off applies, which is that you buy longevity protection with liquidity.

Withdrawals while you are still working

Two routes exist before separation, and both are narrower than people expect.

Age-based in-service withdrawals become available at 59½. You can take up to four of these in a calendar year, still subject to the 30-day gap between requests. This is the route for someone who wants to move part of a TSP balance to an IRA while still employed, though whether that is a good idea is a separate question given the TSP's cost advantage.

Financial hardship withdrawals are available at any age but only for defined categories of need, with documentation. They are taxable, and if you are under 59½ they are generally subject to the 10% early withdrawal penalty on top. Treat this as a last resort rather than a feature.

Choosing traditional or Roth

Each withdrawal request lets you specify the source: traditional only, Roth only, or a proportional mix. This is one of the more valuable flexibilities in the plan, and it is regularly wasted.

Traditional TSP withdrawals are ordinary income in full. Roth TSP withdrawals are tax-free provided the account has satisfied the five-year rule, measured from 1 January of the year of your first Roth contribution, and you are at least 59½, disabled, or the payment is made after death. If you take Roth money before the account is qualified, the earnings portion is taxable while the contributions come out tax-free.

The planning use is obvious once stated. In a year with high taxable income, draw from Roth. In a low-income year, draw from traditional and fill the lower brackets deliberately. That kind of sequencing is the core of retirement tax planning, and the TSP's source election is what makes it possible inside the plan. The underlying comparison between the two account types is covered in Roth 401(k) versus traditional 401(k), which applies to the TSP in the same way.

One warning specific to the TSP: a transfer of Roth TSP money to a Roth IRA carries its own five-year clock considerations at the receiving IRA. The clocks are not automatically the same, and the difference has caught people who assumed the TSP's years carried across.

The age rules and the 10% penalty

This is where the TSP differs from an IRA in a way that is genuinely worth money.

If you separate from federal service during or after the calendar year in which you turn 55, withdrawals from the TSP are not subject to the 10% early withdrawal penalty, whatever your age when you actually take the money. For qualifying public safety employees, the threshold is age 50, and under SECURE 2.0 the alternative test of 25 years of service under the plan also qualifies.

The parallel rule for private-sector plans is explained in the rule of 55, and the TSP version works the same way with the same critical limitation: it applies to the plan you separated from, not to an IRA. Roll your TSP into an IRA at 56 and you have converted penalty-free access into money you generally cannot touch until 59½ without an exception. That single mistake costs more than most of the fee differences people spend their time comparing.

Other exceptions exist, including a series of substantially equal periodic payments under IRC §72(t), disability, and certain medical expenses. The penalty is separate from ordinary income tax, which is due either way.

Withholding: the trap in a total withdrawal

Federal withholding on TSP payments follows the same distinction the tax code applies to all employer plans, and the consequences are large.

Eligible rollover distributions paid directly to you carry mandatory 20% federal withholding. That includes a total withdrawal, single withdrawals, and installment payments expected to last fewer than ten years. The 20% is withheld even if you intend to roll the money over within 60 days, and to complete a full rollover you would have to make up the withheld 20% from other funds and wait for it back as a refund. A direct rollover to an IRA or another employer plan avoids withholding entirely, which is why the direct route is nearly always correct. The broader mechanics are in the 401(k) rollover guide.

Periodic payments are treated differently. Installments expected to last ten years or more, or calculated from life expectancy, are withheld under the elections you make on the withholding form rather than at a flat 20%, and they are not eligible for rollover.

This creates a specific trap. If you set up installments over a long period and later increase the payment amount enough that the expected duration drops below ten years, the character of the payments changes, and with it the withholding and rollover treatment. The TSP recalculates duration when you make changes, so check what the change did before you find out in April.

State tax is a separate matter. The TSP does not withhold state income tax, so if you live somewhere that taxes retirement income you are responsible for estimated payments. Whether that applies to you is covered in states that don't tax retirement income.

Required minimum distributions

RMDs apply to your traditional TSP balance from the year you reach the applicable age, currently 73 under SECURE 2.0 and scheduled to rise to 75 in 2033. The general framework, including the deadline for the first distribution and the penalty for missing one, is set out in required minimum distribution age.

Two points are TSP-specific.

First, Roth TSP balances are no longer subject to RMDs during the participant's lifetime. SECURE 2.0 removed the requirement for designated Roth accounts in employer plans, aligning them with Roth IRAs. Before that change, a common reason to move Roth TSP money to a Roth IRA was to escape RMDs, and that reason no longer exists.

Second, if you are still working for the federal government past the applicable age, RMDs on your TSP are generally deferred until you separate. That is not true of IRAs, where the requirement begins regardless of employment.

If installments are running, the TSP will generally ensure the year's required amount is met, but the responsibility for the total across all your accounts is yours. You can sanity-check the figure with the RMD calculator.

Keeping the TSP or rolling out

The honest summary is that this is a closer call than either side of the argument usually admits.

Reasons to keep it: the TSP's expense ratios are among the lowest available anywhere, the G Fund has no private-sector equivalent, the age-55 separation rule survives only inside the plan, and employer plan assets have strong federal creditor protection under ERISA-style rules that IRA protection does not always match.

Reasons to roll out: a wider investment menu, the ability to do qualified charitable distributions, which cannot be made from a TSP directly, consolidation of several accounts, and estate planning flexibility for beneficiaries that the TSP's own rules constrain.

Partial answers are available. You can roll part of the balance to an IRA and leave the rest, and you can generally roll eligible money back into the TSP later. Anyone presenting this as an urgent all-or-nothing decision, particularly if they are paid on the assets that move, is not describing the plan accurately. Model how long the money lasts under a given withdrawal rate before deciding anything, using the how long will my money last calculator or the sequencing framework in creating retirement income from savings.

Frequently asked questions

Can I take money out of the TSP and put it back?

Not as a repayment. Once a withdrawal is paid to you it cannot be returned to the plan, though if it was an eligible rollover distribution you generally have 60 days to roll it into an IRA or eligible plan and avoid current tax. You can also roll eligible outside money into the TSP, which is a different transaction from undoing a withdrawal.

How long does a TSP withdrawal take?

Requests are made through the TSP's online system and processing generally takes several business days once the request is complete, longer where spousal consent or notarised forms are required. Spousal rights are a common cause of delay: FERS participants generally need spousal consent for most withdrawals, and CSRS participants' spouses must be notified.

Is the TSP annuity a good deal compared with buying one privately?

It is competitively priced and there is no commission, which is unusual. The trade-off is not price but flexibility, because the purchase is irrevocable and you lose access to the capital permanently. The comparison worth running is the same one covered in pension lump sum versus annuity: what guaranteed income does the money buy, and how much of your essential spending do you actually need guaranteed?

Do I have to start withdrawing when I separate?

No. You can leave the balance in the TSP indefinitely, subject to RMDs once you reach the applicable age, and it stays invested in the funds you have selected. There is no requirement to make any withdrawal election at separation, and for many people leaving it alone for a few years while other income sources are drawn down is the cheaper choice.

This article is general education about how the plan's rules work, not personal financial advice. TSP rules and tax thresholds change, and the amounts involved are usually significant. Confirm current rules with the TSP and the IRS, and consider advice from a fee-only adviser familiar with federal benefits, before acting.