Soldiers who ETS because they are denied reenlistment due to RPC are authorized Half Separation Pay.
3.2. Half Separation Pay (Non-disability). Half payment of non-disability
separation pay, computed as provided in paragraph 3.3., below, is authorized to members
of the Regular and Reserve components involuntarily separated from AD who meet each
of following four conditions:
3.2.3. The Service member is being involuntarily separated by the Military
Service concerned through either the denial of reenlistment or the denial of continuation
on AD or full-time National Guard duty, or the Service member is being separated
instead of board action as provided in DoD Directive 1332.30 (reference (f)), under one
of the following specific conditions:
22.214.171.124. The member is not fully qualified for retention and is denied
reenlistment or continuation by the Military Service concerned as provided for in
reference (e) or DoD Directive 1332.30 (reference (f)) under any of the following
126.96.36.199.1. Expiration of service obligation.
Though I didn't copy and paste it, in order to qualify, the Soldier must have served at least 6 years AFS.
Career Counselor (Retired)