I have been thinking about trying to do a backdoor Roth conversion for a while. I've read several very good articles on the mechanics and pitfalls (http://www.kitces.com/blog/how-to-do...tion-doctrine/
and here www.physicianonfire.com/backdoor/
But I am still left with some questions.
First, a question about aggregation of IRAs. I don't have any IRAs, but I do contribute the maximum to the tax-deductible TSP. If I were to contribute to a non-deductible traditional IRA, is my TSP considered a 401(k) or is it considered an IRA and I would then face aggregation of the accounts during a backdoor conversion? I *think* since the TSP is an employer retirement account it would not fall into the IRA aggregation rule (per Kites link), but I just want to be sure.
Second, I use T. Rowe Price for my investing. Looking on their website for opening an IRA, there is no option to open a "Non-deductible Traditional IRA". For anyone who has done this, do I just open a traditional IRA and it is automatically non-deductible b/c I'll be maxing out my TSP? Or is it non-deductible because I'll be reporting it that way on Form 8606? I'm just confused when I read articles and they make references about contributions to their "non-deductible IRAs" like it's an option they can select through their investor's website.