SmartAsset and Yahoo Finance LLC may earn commission or revenue through links in the content below. Imagine that you have $900,000 in a Roth IRA and collect another$2,200 per month in Social Security. Can you afford to retire at age 66? A good way to answer this question is to start with your budget. What do you expect to spend on essentials, like housing and fixed monthly expenses, and what will it cost to maintain your lifestyle? Then take a look at your retirement income and see how all those figure ...