I turn 70.5 on Dec. 7, 2019. When can I make a Qualified Charitable Deduction from my traditional IRA: any time this year or only after Dec.7?

[MichaelL1]

Only after December 6th, 2019 as you have no RMD until then.

[dmertz]

If you make any distribution in 2019 before December 7, it will part of your RMD but won't be a QCD even if you have it sent to a charity.  So if you want your IRA RMD for 2019 to be entirely satisfied by a QCD, you'll have to make sure that the distribution is made after December 6, 2019 and is received by the charity before the end of 2019.