TURNED 70 1/2 IN DEC 2017. DID NOT TAKE RMD YET ALREADY FILED 2017 RETURN. HELP

[ChristyW · Accepted solution]

Since you turned 70 1/2 at the end of 2017, per the IRS:

Beginning date for your first required minimum distribution

• IRAs (including SEP and SIMPLE IRAs)
  • April 1 of the year following the calendar year in which you reach age 70½.
     
• 401(k), profit-sharing, 403(b), or other defined contribution plan
  Generally, April 1 following the later of the calendar year in which you:
• reach age 70½, or
• retire.

Which means you are okay for 2017 tax return. See this link for more about RMD: https://goo.gl/eRmXTV