Roth Conversion Tax Payments
Consider the following:
RMD from 401k for 2018 divided by 12 and distributed on the 15th of every month from January thru December to checking account.
Additional amount transferred via ROTH conversion in December 2018.
Total income tax calculated via TaxCaster for projected income, including RMD (but not including conversion amount) and submitted quarterly.
File taxes in March 2019 and pay the additional tax owed for the conversion amount.
Question: Does this scenario comply with IRS regulations?