Super IRAs Earlier this year, Presidential aspirant Mitt Romney revealed, through financial disclosure documents, that he owns an IRA worth between $20.7 million and $101.6 million (the disclosure forms use ranges, not exact figures). Even using the lower figure, $20 million seems rather extraordinary, given that IRA contributions were long limited to $2,000 and only recently have been boosted to $5,000 ($6,000 for those over 50). How did he do it? It helps if the limits are not quite so low. Bain Capital, which Romney headed, provided its employees with an SEP-IRA, a retirement plan that is somewhat similar to a 401(k) plan. Before 2001, the annual contribution limits to these plans was $30,000. Much more important is that Bain allowed staffers to invest in its takeover deals. What's more, the staffers could allocate their holdings to taxable accounts or to their IRA, as they wished. Each investor would receive common and preferred shares. The common shares would have the greatest risk and the greatest potential for reward, should a Bain turnaround prove successful. According to an analysis by The Wall Street Journal, in one noteworthy deal some Bain employees saw their IRAs balloon 583-fold over just 20 months. Those profits could then be rolled over into the next Bain deal, all compounding occurring tax deferred. Mr. Romney is not home free with his IRA, because all distributions from it will be taxed as ordinary income. Under current law, that would be a top federal tax rate of 35%. Super Roths In contrast, Max Levchin may not be worried about income taxes on his retirement distributions, reports Forbes magazine. He's the chairman of Yelp, a social review site. Digging through SEC filings, Forbes discovered that Levchin had 7 million shares of Yelp in his Roth IRA. He sold 3.1 million of those shares in 2010, and reinvested the $10.1 million of proceeds tax free. What's more, if Levchin waits until he is 59 Y2 to begin drawing down the Roth