Fees are about .028% on average-- that's practically free. Your other accounts are no doubt over 1% in fees with other hidden fees there as well. TSP is easy to manage, allows you to move the $ around (on a somewhat limited basis). I would totally do it.

I would port it over-- the fees in TSP are incredibly low and the indexes it invests in are all you need (OTOH if there's some investment you really like like REITs or a specific managed mutual fund then you shouldn't-- that's a personal decision but generally I believe in low cost index investing, but TSP has the G fund, which many people think is the best thing in fixed income).

One more thing to note-- if you have a rollover into an IRA it will affect your ability to do a "backdoor" Roth, but if you roll it into TSP there's no problem.

I'm not in the TSP but have not consolidated all my 401k accounts. I have 2, plus an IRA account. I did consolidate 2-3 prior accounts into a Fidelity account. I like Fidelity's investment options and it's easy to access. My current 401k also happens to be at fidelity but is a separate plan/account. My DH has a TSP account and I find the website cumbersome and the investment options limited but maybe it's because he is no longer contributing to it? With 401ks there isn't much to do since they are tax deferred. So there isn't much administrative burden with having more than 1.

Same question about a Charles Schwab 401K from a past job. I had no idea you could roll it over into your TSP.

I have a Merrill Edge account (balance about $140k) that was a rollover from a previous job. I am now a federal employee and have a TSP. I ported a smaller 401 balance straight from another previous employer into the TSP account to consolidate accounts when I first opened my TSP, and I'm wondering if I should do the same with the IRA? Is there something that I am getting out of maintaining the IRA (investment mix, ability to re-balance more easily, tax advantage, access to investment advice) that makes it worth the annoyance of having two accounts and paying fees twice? I am really a "set-it-and-forget" type of investor and would prefer to have everything in one account on some sort of pre-defined mix of investments based on my age (40). For what it's worth, combined income with spouse is about $285k. I am not sure what MAGI is (would have to look it up on last year's tax docs and spouse's income was about $25k lower last year anyways), but we both contribute max to 401ks, think mortgage interest from last year was maybe $20k (monthly pymt is $3200), fund 529s at about $2k a month (just started that this year), deduct $5k for dependent care, and flexible spending account for healthcare is about $1500. If there's any other information that would help someone answer this question, I'm happy to provide.

Thanks so much DCUM!