Jim Crawford's side will face Slovenia in an international friendly before their three remaining Group One fixtures.
Ireland are currently top of their qualifying group having only suffered one defeat in seven matches so far, three points ahead of second-placed Italy.
Ahead of the qualifiers, Jim Crawford will take charge of his first match as U-21 Head Coach when Ireland travel to Slovenia on Monday, September 7 for an international friendly.
In October, Ireland will face Italy in a huge game at the top of the group on Tuesday, October 13 before the remaining two fixtures in November. Ireland will welcome Iceland on Thursday, November 12 before travelling to Luxembourg for the final group game on Tuesday, November 17.
Kick-off times and locations will be confirmed at a later date.
Ireland U-21 Fixtures - 2020
07/09 - Slovenia v Ireland - International Friendly
13/10 - Italy v Ireland - U-21 European Championships Qualifier
12/11 - Ireland v Iceland - U-21 European Championships Qualifier
17/11 - Luxembourg v Ireland - U-21 European Championships Qualifier