Leave It in the TSP or Roll to an IRA?

Updated August 2026 · Educational only — not financial, tax, or legal advice

When you retire, you'll hear plenty of voices — some of them paid on commission — telling you to roll your Thrift Savings Plan into an IRA. Sometimes that's the right move. Often it isn't. This is a genuine tradeoff, and the goal here is to lay out both sides honestly so you can decide on the merits, not on someone else's incentive.

The case for keeping it in the TSP

• Published fund expenses. The TSP publishes fund expense information you can compare against IRA funds, advisory fees, and managed-account costs. Over decades, even small fee differences can materially affect what stays invested.
• The G Fund. The Government Securities (G) Fund is unique to the TSP — it uses special U.S. Government obligations issued for the Thrift Savings Fund, with interest tied to longer-term Treasuries. You cannot buy that same fund anywhere else, and many retirees value it as a stable anchor.
• The age-55 access rule. If you separated in or after the year you turned 55 (or meet the age-50/25-years-under-the-plan public-safety rule), the TSP can give you penalty-free withdrawals — an exception you may lose on funds rolled to an IRA.
• Simplicity. Fewer accounts, fewer ways to be sold something you don't need.

The case for rolling to an IRA

• More investment choices. The TSP offers a handful of funds; an IRA opens the full menu of index funds, ETFs, and individual securities. Whether you need that is a fair question.
• More flexible strategies. Some withdrawal sequences, qualified charitable distributions, and broader tax-planning workflows may be easier or only possible outside the TSP. Roth in-plan conversions are now available inside the TSP for eligible balances, so don't roll money out solely on the outdated assumption that the TSP cannot convert traditional money to Roth.
• Consolidation. If you have other accounts scattered around, pulling everything into one IRA can simplify management and estate planning.

You don't have to choose all-or-nothing

It's not necessarily a binary. You can keep a core balance in the TSP for its published fund expenses, the G Fund, and the age-55 or public-safety access rule, while rolling a portion to an IRA for a specific purpose like a planned Roth conversion. The right structure depends on your goals — and is worth working out with a fiduciary professional who is paid the same regardless of what you decide.