I'm 24 and have $28,000 in two 401(k)s from previous employers. I also have a bit over $10,000 in a Roth IRA, and about $20,000 in cash I'm planning on investing soon, probably in a taxable account. I'm planning on rolling them over into a Vanguard IRA, but having trouble deciding on whether I want to move them to a Roth or a traditional IRA.
I'd like to make my decisions before the end of the year, when at least some subset of taxes are likely to increase, though probably not mine. My skills are in high demand, so this year will probably be my lowest income, at least in the near-term, so long as I don't take a bunch of time off to travel the world in a few years. Hopefully, I'll be high enough income that I won't be able to make independent Roth contributions in a few years. Beyond that, my long-term goals are somewhat diffuse, but include at least having the option to retire early.
So far as I can tell, the relevant variables are whether I'd want to consider are what my tax rate is at present and what my tax rate will be at retirement. However, my retirement tax rate is pretty hard to determine, as I have no definite plans for when and where I'd retire, nor do I have much idea of what the marginal tax rates will be in 2030 or 2040 or so.
Here are my thoughts in favor of the traditional IRA: If I were to retire early, I would probably take a relatively low income from my investments, as my lifestyle is pretty cheap. I currently live in New York City, which has one of the highest marginal tax rates in the country, with any money rolled over facing state income taxes of about 10% in addition to federal taxes. If I retired early, I would probably be living somewhere with lower income tax rates. Also, since I'm so young, a large proportion of the value of my retirement accounts is likely to be taxed as capital gains. Moreover, if I took a year off to travel in a few years, I could establish a home base in a lower-tax jurisdiction that year for a rollover.
But in favor of the Roth IRA: tax rates are at a post-war low, and my read of the political situation is that the Republican anti-tax jihad is reaching is end. Likewise, if current demographic trends and medical trends hold (basically, if significantly more immigration isn't permitted, and Medicare continues spending more on medical care to let elderly people live longer, without a significant cultural shift toward hospice care and away from aggressive end-of-life care), the elderly share of the population will be much higher when I'm older, and their medical spending will likewise be higher, necessitating higher taxation to fund Medicare. There's also a pretty high chance capital gains taxes will be higher in the future.
It seems like neither I nor anyone else can say for sure whether my tax rate would be higher or lower in retirement. I'm thinking the right choice would be to roll over half the funds to a Roth, and the other half to a traditional IRA, in order to hedge against tax shifts in either direction. Is there anything I've missed?