Offer your thoughts or opinion on the input financial query or topic using your financial background.

How feasible would it be to retire just maxing out a Roth IRA?
Interesting. The answer can be as convoluted/complex as one wishes to make it, or back-of-envelope.  My claim is that if one starts at 21, and deposits 10% of their income each year, they will likely hit a good retirement nest egg. At an 8% return each year (Keep in mind, the last 40 years produced 10%, even with the lost decade) the 10% saver has just over 15X their final income as a retirement account. At 4% withdrawal, this replaces 60% of their income, with social security the rest, to get to nearly 100% or so replacement. Note - I wrote an article about Social Security Benefits, showing the benefit as a percent of final income. At $50K it's 42%, it's a higher replacement rate for lower income, but the replacement rate drops as income rises. So, the $5000 question. For an individual earning $50K or less, this amount is enough to fund their retirement. For those earning more, it will be one of the components, but not the full savings needed.  (By the way, a single person has a standard deduction and exemption totaling $10150 in 2014. I refer to this as the 'zero bracket.' The next $8800 is taxed at 10%. Why go 100% Roth and miss the opportunity to fund these low or no tax withdrawals?)