The last response to this thread is almost 4 weeks old, but I believe this subject to be of high importance from a RE investor standpoint, so I will add to it.
Lito posed the question of contributing to an IRA for his wife in addition to himself. For 2008, a married couple filing jointly can contribute up to 10,000 into a traditional IRA (if over age 50, add $1000 single/2,000 married file joint). These figures are the same for a ROTH IRA.
Since most of us a RE investors, it would make more sense to invest these retirement accounts in RE rather than the suggested bank funds/brokerage houses. Anyone with earned income (or an existing IRA) can open a self-directed IRA (SDI) and invest in real estate, loans secured by RE, business ventures, and many other vehicles. In 1974 ERISA (Employee Retirement Income Security Act), states that you can invest your retirement funds in any investment of your choice excluding life insurance policies and collectables.
Jon suggested that Lito was attempting to create a much larger IRA account fast. I am sure that is true, but it can not be done by having your parents contribute to your account or anyone else for that matter as Jon said. You can not exceed IRS limits for contribitions. In order for Lito, or anyone else in the same position, to create a larger account fast, I suggest rolling over to a SDI and use the following strategy.
I know of an investor who opened a SDI with $5,000, located an apartment complex (46 units), placed $5,000 earnest money in the name of his SDI, located a buyer for the property and assigned the contract for $75,000. This all took place inside of three months and his IRA (it was a ROTH) grew form 5k to 75k in just 3 months. This same strategy (wholesaling) can be done on residential and commercial properties.
This of course, is not the only strategy, but one of low risk and high return in a short period of time.
For info on SDI's, Google "self-directed IRA" or check out Equity Trust (www.trustetc.com) or entrust. Both are good TPA's (third party administrators) and I favor ETC. You may also check out www.irs.gov click on publication 590 for the IRS rules and guidelines pertaining to SDI accounts.