48m single head of household. Hoping to FIRE in 10 years.
In addition to my full time W2 job, I also have a sole proprietorship business with myself as the only employee. I have a SEP-IRA for the side business at Vanguard, along with my tIRA, rIRA, and brokerage accounts also at Vanguard. I'm getting close to the AGI for eligibility for making Roth contributions (
https://www.irs.gov/retirement-plans/amount-of-roth-ira-contributions-that-you-can-make-for-2019), so I'm strongly considering opening a Solo 401k at Fidelity in 2020 and rolling my SEP-IRA and tIRA funds into it. (Fidelity will allow me to roll my SEP-IRA and tIRA accounts into the s401k, whereas Vanguard will not.)
Having no more tIRA accounts will allow me to avoid the pro-rata tax implications of doing backdoor tIRA-to-Roth contributions for the next few years, which is the entire purpose of this exercise.
My questions:
1. If I follow through with this plan, when I retire (and am hopefully in a lower tax bracket), can I do Roth Conversions from the Solo 401k directly into a Roth IRA account?
2. I'm already maxing my W2 401k and my Roth IRA contributions. I'm also maxing my 20% SEP-IRA contribution as my own employER.
3. I do not have access to an HSA. I have no consumer debt. I have a 6 month emergency fund. I am maintaining ~50% savings rate after taxes. I am making contributions to a brokerage account.
4. Am I missing something here that you would suggest regarding how to maximize my ability to contribute to the various tIRA, rIRA, SEP-IRA, and 401k accounts?