If you inherited a traditional IRA, you must include the taxable portion of any distribution that you receive in your gross income. You would be smart to pay estimated quarterly tax payments throughout 2017 to avoid getting hit with a large tax bill come April 15, 2018. Please see the next Link for the answer to a similar question as yours, and the last Link will give you some IRS tips on what not to do with your inherited IRA.
https://ttlc.intuit.com/questions/3348887-i-am-the-beneficiary-of-funds-from-an-inherited-ira-how-mu...
https://www.irs.gov/publications/p590b/ch01.html
