Key Takeaways
- Federal employees must follow updated TSP RMD age rules starting in 2026, with most beginning at age 73 unless exceptions apply.
- Missing an RMD can result in IRS penalties, but the TSP and IRS have procedures to address missed distributions.
Many federal employees are surprised when required minimum distributions (RMDs) begin, especially as age rules shift. Understanding your TSP RMD obligations for 2026 will help you avoid tax penalties, plan withdrawals, and stay on solid ground with federal retirement rules.
What Are TSP RMDs?
Definition of Required Minimum Distributions
Required minimum distributions, or RMDs, are withdrawals the IRS requires you to take each year from certain retirement accounts, including the Thrift Savings Plan (TSP), once you reach a set age. RMD rules exist to ensure pre-tax retirement savings are eventually taxed. The amount and timing of RMDs aren’t optional once you become eligible; they’re a legal requirement for TSP participants.
How RMDs Apply to Federal Employees
For federal employees and retirees, RMDs apply to both traditional and Roth balances in your TSP account. Importantly, even if you don’t need the income, you must take these distributions after the triggering age—unless an exception fits your situation. Failure to follow RMD rules leads to IRS penalties and possible additional paperwork.
What Changed for RMDs in 2026?
Recent Federal Updates on RMD Ages
In recent years, federal legislation has raised the age at which most savers—including federal employees—must start taking RMDs. As of 2026, the required age for beginning RMDs is 73. This change reflects efforts to align retirement policy with longer working lifespans and evolving workforce trends.
Impact of New RMD Age Rules
For anyone who turns 73 in 2026 or later, distributions from the TSP must begin after they reach this age, unless an exception applies. This gives many federal workers more time to grow their savings tax-deferred. However, it also means you need to check your birth year and employment status to know when RMDs start for you. Not all federal employees are affected by the same rules at the same time—each person’s schedule is tied to their age and employment status.
Age 73: New Starting Point?
Who Does the Age 73 Rule Affect?
The new age 73 RMD rule mainly impacts federal employees and retirees born in 1953 or later. If you reach age 73 any time in 2026, you generally need to take your first RMD for that year. Those who turned 72 in earlier years will have already begun RMDs under the old schedule, while those younger than 73 in 2026 may have additional years before RMDs begin.
How to Determine Your RMD Beginning Year
To pinpoint your RMD start year, check the year you turn 73. Your first RMD must be taken by April 1 of the year following the year you reach 73, but every later year’s RMD is due by December 31. If you delay your first RMD until the following April, you’ll need to take two RMDs in that year (one for the prior year and one for the current year). This timing can impact your tax situation, so planning when to take each withdrawal is important.
What If You’re Still Working?
Exceptions to RMD for Active Employees
Federal employees who are still actively working for the government at age 73 can usually delay TSP RMDs until they retire. This exception only applies if you do not own more than 5% of the employer (which is rare in federal service). If you have separated from federal service, even mid-year, you must start RMDs for the year of your separation.
Considerations for Delaying RMDs
Delaying your RMD while you continue working lets your TSP account maintain tax-deferred growth. However, once you retire, you must begin taking RMDs by the standard deadline. Remember, this rule applies only to your active federal employment and TSP account. If you have other retirement accounts (like IRAs or previous employer plans), their RMD rules might differ.
How Are RMDs Calculated?
IRS Life Expectancy Tables
To calculate your annual TSP RMD, you use the IRS Uniform Lifetime Table, which assigns a “distribution period” number based on your age. Your TSP account balance is divided by this number to determine your minimum required withdrawal for that year. The IRS updates these tables periodically, so always check that you’re using the correct and current table each year.
TSP Account Balances and Timing
The TSP uses your account value on December 31 of the prior year to calculate your RMD. For example, your 2026 RMD would be based on your TSP balance as of December 31, 2025. If you have both traditional and Roth balances, the RMD is calculated on your entire account but will generally come out of the traditional (pre-tax) balance first. The TSP calculates and automatically pays out the necessary minimum, but you are responsible for ensuring compliance.
What Happens If You Miss an RMD?
Potential IRS Penalties
Missing your RMD can result in significant IRS penalties. If you don’t take your required minimum distribution by the deadline, the IRS can impose an excise tax on the undistributed amount. However, recent law changes have reduced the penalty in some cases, and the IRS may waive the penalty if you show that the missed withdrawal was due to reasonable error and you are taking steps to correct it.
Remedial Steps Allowed by TSP Rules
If you missed your RMD, the TSP provides procedures for making late distributions. You may be able to request a waiver of IRS penalties by submitting a reasonable cause explanation, along with evidence that you are making the appropriate corrective distribution. The TSP will coordinate with you to help ensure you remain compliant with federal retirement requirements.
Are There TSP-Specific Considerations?
Differences for Federal Employees Versus Private Plans
While RMD rules generally follow federal law, the TSP has unique administrative procedures. For example, if you have both a TSP and IRAs, RMDs must be taken separately from each account; you can’t satisfy your TSP RMD with an IRA withdrawal or vice versa. The TSP calculates and distributes the required amount for you, reducing the risk of an oversight, but it’s wise to monitor your notices and tax forms each year.
Rules for Beneficiaries and Inherited IRAs
If you inherit a TSP account as a beneficiary, different RMD rules may apply. Most beneficiaries must take required distributions based on their own life expectancy schedules or, in some cases, must withdraw the full account within a set period. Inherited IRAs transferred from the TSP must also meet RMD requirements based on federal statutes. Understanding the correct schedule for inherited TSP accounts is important to avoid unintended tax bills.
