First-timers get a special grace period, but doubling up distributions in one year can lead to a bigger-than-expected tax bill. Thinkstock By Kimberly Lankford, Contributing Editor March 31, 2016 I turned 70½ in 2015, and I know that I have to take my first required minimum distribution from my IRA by April 1, 2016. Do I need to take another RMD by the end of this year? Is there anything I can do to reduce the tax bill if I have to take two RMDs in the same year? Generally, you must take your required minimum distributions by December 31 every year. But for your first RMD, you may wait until April 1 of the year after the year you turn age 70½. However, you must also take a second RMD (the one for age 71) in the same year by December 31. See Also: 10 Things Boomers Must Know About RMDs from IRAs Taking two RMDs in one year, as you are doing, could cause you to have an unexpectedly large taxable income for the year. That could bump you into a higher tax bracket. It could also affect the amount of your Social Security benefits that are subject to taxes. Advertisement Also, if your adjusted gross income plus tax-exempt interest income rises above $85,000 if you’re single (or $170,000 if married filing jointly), you pay more for Medicare premiums: a total of $170.50 to $389.80 per person each month for Part B premiums, and an extra $12.70 to $72.90 per person each month for Part D. See How Much Will Your Medicare Premiums Cost in 2016? for more information about the surcharge and when you can contest it. The IRA RMD you are taking April 1 is based on the balance in your traditional IRAs as of December 31, 2014, and your second RMD this year is based on the balance in your IRAs as of December 31, 2015. However, you can still reduce the taxable amount for 2016 by making a tax-free transfer to charity of up to $100,000 from your IRA anytime during the year (it’s too late to make a tax-free transfer for your 2015 RMD). The amount counts as your RMD for the year but isn’t included in your adjusted gross income. The law permitting such transfers has been extended permanently, so you no longer need to wait for Congress to approve it at the end of each year before taking action. Contact your IRA administrator and the charity for more information about the steps to take to make the transfer. See Also: 6 Ways to Avoid Outliving Your Nest Egg Got a question? Ask Kim at email@example.com.