I'm planning to leave my current employer in four years and attend grad school for several years, and I'm unsure what I should do with the funds in my Roth 401K. Based on my current salary and my employer's contributions, I'll have about $33K in this account when I start school (ignoring gains or losses).
Will I be able to roll my Roth 401K into my existing Roth IRA without complications, e.g. rollover limits, when I become a student? I won't necessarily have any earned income when I'm in school; I think it depends on whether I'm issued a W2 or a 1099MISC for the fellowship income that I'll (hopefully) receive.
My 401K is currently invested in several funds with expense ratios ranging from 0.03 to 0.14, so there are worse options than leaving the money there for several years until I start working again. However, I would prefer to roll it into my Roth IRA and manage it from there. If necessary I'll post the details of my 401K contributions.