Some workers must take RMDs from their retirement accounts at age 70 ½; others can wait. Thinkstock By Kimberly Lankford, Contributing Editor April 26, 2016 I'm self-employed and have a solo 401(k). Will I need to take RMDs from my 401(k) if I'm still working in this job after age 70½?See Also: RMD Tips for Retirees Taking Their First Required Minimum Distributions You generally don't need to take required minimum distributions from your 401(k) if you're still working at 70½, but there is an exception: You must start taking RMDs even while working if you own more than 5% of the company. Because you're self-employed and are the sole owner of the company with the solo 401(k), you'll need to start taking RMDs starting at age 70½. If you are not still working at 70½, you must follow the same RMD rules as with regular 401(k)s -- that is, you generally must start taking required minimum distributions at age 70½. With any 401(k), you can delay taking the first RMD until April 1 of the year after you turn 70½. Every year after that, you must take RMDs by December 31. For more information about RMDs, see our Required Minimum Distributions special report. See Also: 10 Things Boomers Must Know About RMDs From IRAs Got a question? Ask Kim at firstname.lastname@example.org.