Much Needed Tax Relief For 2009 Is Available, But You Must Open A Solo 401k By Dec 31st, 2009. Nabers says setting up and contributing to your Solo 401k before the end of 2009 will allow married couples to deduct up to $109,000 from their 2009 income taxes. Watch this video to learn more and pick up … [Read more...] about Solo 401k Provides Unfair Tax Advantage For Self Employed Business Owners