It's possible to have quite a lot of nontaxable income in retirement if you're lucky enough to have an employer - provided pension or an annuity purchased with post-tax funds. (dailytradealert.com)
Employer - sponsored insurance is the legacy of an IRS ruling after World War II that allowed employers to deduct employee health insurance as a business expense and employees to receive that benefit as nontaxable income. (entrepreneur.com)
A: If you convert the entire amount of all traditional IRAs you own, then the non-taxable part of your rollover distribution is simply the total amount of nondeductible contributions you made to all of those IRAs, less the amount of nontaxable distributions you received in the past. (fairmark.com)