Updated: August 29, 2026
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A Thrift Savings Plan rollover looks like one action on the account form. It is actually two very different tax events depending on how the funds move. The paperwork label carries the entire tax result for the year.
The direct rollover moves the money from the TSP recordkeeper straight to the receiving plan. The indirect rollover pays the participant first, subject to a mandatory 20 percent federal withholding, and gives the participant 60 days to complete the deposit. Both are permitted under the Internal Revenue Code. The tax mechanics and the paperwork risk differ significantly.
The direct rollover: trustee to trustee, no withholding
A direct rollover is executed as a trustee-to-trustee transfer. The TSP recordkeeper sends the funds by wire or by check made payable to the receiving custodian, for the benefit of the participant. The participant never takes constructive receipt of the funds.
Because the participant never receives the money in cash, no federal withholding applies. There is no 60-day clock. The IRC 408(d)(3)(B) once-per-12-months rule does not apply either, and neither does it apply to trustee-to-trustee transfers between IRAs. Direct rollovers use the TSP Form TSP-99 (or the online equivalent) with the receiving plan section completed by the new custodian.
The receiving side must be a qualifying plan: a traditional IRA, a Roth IRA (with the conversion consequences that implies), another 401(k) or 403(b), a governmental 457(b), or a self-directed IRA. A self-directed IRA that holds IRS-approved precious metals under IRC 408(m)(3) is one factual destination among the many permitted.
The indirect rollover: 20 percent federal withholding under IRC 3405(c)
An indirect rollover means the TSP writes the check to the participant. Under IRC 3405(c)(1), the plan administrator must withhold 20 percent of the taxable portion of any eligible rollover distribution that is not sent as a direct rollover. The withholding is mandatory. The participant cannot opt out.
The withheld 20 percent is remitted to the IRS as federal income tax paid on the participant’s behalf. The remaining 80 percent lands in the participant’s own bank account or in a paper check made payable to the participant.
The participant now has 60 days from receipt to roll the funds into an eligible plan or IRA, under IRC 402(c)(3). To roll the full pre-tax balance, the participant must add outside cash equal to the withheld 20 percent. Otherwise the withheld portion becomes a taxable distribution for the year.
The TSP’s own worked example: $10,000 becomes $8,000
The TSP publishes a worked example of the indirect-rollover mechanics in its booklet on separated-participant withdrawals. It uses a round $10,000 distribution to show the arithmetic. The example runs on page 8 of the current tspbk26 booklet.
On a $10,000 indirect distribution, the TSP recordkeeper withholds $2,000 (20 percent) and sends it to the IRS. The participant receives $8,000. To roll the full $10,000 into a receiving plan within 60 days, the participant must deposit $10,000 into the new plan and cover the missing $2,000 from outside funds.
The $2,000 that went to the IRS is not lost. It is claimed as federal income tax paid on the participant’s Form 1040 for the year, on line 25b. That amount is either refunded or applied against other federal income tax owed. The participant sees it again only after filing the annual return.
The arithmetic on a $50,000 distribution
Scaling the TSP example up to a $50,000 distribution shows the same mechanic at a size closer to a typical rollover balance. Three pathways sit side by side: direct rollover, indirect with full 60-day reconstitution, and indirect without reconstitution.
Under the direct rollover, $50,000 leaves the TSP and $50,000 lands in the receiving plan. Nothing is withheld. No cash flow event hits the participant’s checking account.
Under the indirect rollover with full reconstitution, $50,000 leaves the TSP as a gross distribution. The recordkeeper withholds $10,000 (20 percent) and pays it to the IRS. The participant receives $40,000. Within 60 days, the participant deposits $50,000 into the receiving plan, using the $40,000 received plus $10,000 from other savings. The $10,000 withheld is recovered at tax filing on Form 1040 line 25b.
Under the indirect rollover without reconstitution, the same $10,000 is withheld and the same $40,000 arrives. The participant deposits only $40,000 into the receiving plan within 60 days. The $10,000 that was withheld does not enter any retirement account. It counts as a taxable distribution for the year at the participant’s ordinary income rate.
Recovering the withheld 20 percent at tax filing
The 20 percent withheld under IRC 3405(c) is not a penalty. It is a prepayment of federal income tax against the participant’s Form 1099-R distribution. The recordkeeper issues a Form 1099-R in January of the following year, showing the gross distribution in box 1 and the federal income tax withheld in box 4.
On the annual Form 1040, the amount from box 4 flows to line 25b (federal income tax withheld from Forms 1099). That figure is added to any other federal income tax already paid during the year. The combined total is compared to the tax owed. Any excess is refunded. Any shortfall is due.
If the participant rolled the full pre-tax amount within 60 days, the gross distribution is not taxable income for the year. The $10,000 withheld then shows as an overpayment on the return and either lands as a refund or offsets other tax owed.
What happens if you miss the 60-day deadline
Missing the 60-day deadline turns the un-rolled portion into a taxable distribution for the year. The portion that never reached a receiving plan is reported as ordinary income on Form 1040. The withholding already remitted is still claimed on line 25b, offsetting the tax due on that same income.
If the participant is under age 59 and a half at the time of the distribution, the 10 percent additional tax under IRC 72(t) may also apply to the taxable portion.
The TSP has its own age-based rules for penalty-free access at age 55 after separation. Those rules apply to distributions taken directly from the TSP, not to distributions from an IRA that received a rollover. See our page on the TSP age 55 rule and the rolled IRA trap for that specific interaction.
Rev. Proc. 2020-46: the narrow 60-day self-certification
The IRS provides a narrow relief path for participants who miss the 60-day deadline for reasons listed in Revenue Procedure 2020-46. Eleven specific circumstances qualify. Examples include a check that was misplaced and never cashed, severe damage to the principal residence, a family death, a serious illness, an incarceration, and a foreign-country restriction.
Self-certification is not automatic approval. The IRS retains the right to audit the certification during a later examination. A written self-certification is delivered to the receiving plan’s trustee, who accepts the rollover past the 60-day mark and files the return without claiming the distribution as taxable. The rollover must be completed as soon as practicable after the qualifying reason ceases, and in any event within 30 days.
The once-per-12-months IRA rollover rule does not apply here
The once-per-12-months rollover rule under IRC 408(d)(3)(B) applies to indirect rollovers between IRAs. It limits a taxpayer to one such rollover in any 12-month rolling window, aggregated across all IRAs the taxpayer owns.
That rule does not apply to a rollover from an employer plan such as the TSP into an IRA. It also does not apply to trustee-to-trustee transfers between IRAs, since those are not indirect rollovers. See our page on the IRA once-per-year rollover rule explained for the specific edge cases.
Direct and indirect side by side
The two paths carry different paperwork, different timing risk, and different cash-flow consequences. The table below summarizes the mechanical differences on a $50,000 rollover.
| Mechanic | Direct rollover | Indirect + reconstituted | Indirect without reconstitution |
|---|---|---|---|
| Amount leaving TSP | $50,000 | $50,000 gross | $50,000 gross |
| Federal withholding (IRC 3405) | $0 | $10,000 | $10,000 |
| Cash to participant | $0 | $40,000 | $40,000 |
| Outside funds required within 60 days | $0 | $10,000 | $0 |
| Amount landing in receiving plan | $50,000 | $50,000 | $40,000 |
| Amount taxable this year | $0 | $0 | $10,000 |
| Withheld amount recovered on Form 1040 line 25b | Not applicable | $10,000 | $10,000 (offsets tax owed) |
| Potential IRC 72(t) 10 percent additional tax if under 59.5 | Not applicable | Not applicable if fully rolled | May apply to $10,000 |
Where the paperwork actually lives
The direct rollover request is initiated at the TSP through the separated-participant withdrawal wizard on tsp.gov. The receiving side is identified by plan name and custodian name. For a wire, an ABA routing number and account number are supplied. For a mailed check, the payee name and mailing address of the receiving trustee are entered on the form.
The indirect rollover request is a distribution request payable to the participant. The recordkeeper computes the 20 percent withholding, remits it to the IRS, and issues the net check or ACH deposit. The 60-day clock starts on the date the participant receives the funds, not on the date the TSP mails the check.
The receiving-plan side of the operation
The receiving custodian applies its own account-opening procedures. A traditional IRA at a bank or brokerage typically accepts an incoming rollover with a simple deposit slip and a copy of the TSP-issued distribution paperwork. A self-directed IRA holding IRS-approved metals under IRC 408(m)(3) uses the same rollover mechanic, with the incoming funds routed to the approved custodian named on the new account.
Each receiving custodian codes the incoming deposit as a rollover contribution rather than a regular annual contribution. That code keeps the rollover outside the annual IRC 219 contribution limit.
The receiving side reports the rollover on Form 5498 in the following May, in box 2 (rollover contributions). The Form 1099-R issued by the TSP for the same distribution should show a distribution code that matches the intended treatment. A code G on the 1099-R box 7 indicates a direct rollover. Other codes indicate an indirect distribution with the withholding already applied.
A short summary of the mechanics on this page
The direct rollover carries no withholding, no 60-day clock, and no once-per-year interaction. The indirect rollover carries a mandatory 20 percent federal withholding under IRC 3405(c) and a 60-day window under IRC 402(c). The withheld 20 percent is recovered at tax filing on Form 1040 line 25b, either as a refund or as a credit against other tax owed.
The paperwork label chosen at the TSP determines the tax result for the year. The choice belongs to the participant. The IRS rules apply regardless of the receiving plan chosen, including a traditional IRA, a Roth IRA, another employer plan, or a self-directed IRA holding IRS-approved metals under IRC 408(m)(3).
Updated August 29, 2026.
Sources cited
- TSP booklet: Withdrawing from your TSP account for separated and beneficiary participants (tspbk26), including the worked $10,000 indirect-rollover example on page 8
- IRS: Rollovers of retirement plan and IRA distributions (direct vs indirect, 60-day rule, 20 percent withholding)
- Cornell LII: 26 U.S.C. section 3405, mandatory withholding on eligible rollover distributions (20 percent)
- Cornell LII: 26 U.S.C. section 402(c), rollovers from qualified plans (60-day rule)
- Cornell LII: 26 U.S.C. section 408, individual retirement accounts (including 408(d)(3)(B) once-per-year rule and 408(m)(3) IRS-approved metals)
- IRS Rev. Proc. 2020-46: self-certification for waiver of the 60-day rollover requirement