Some things never change. You may be retired. You still have to deal with tax deadlines. And you may be working in retirement. Either way, several deadlines are approaching that retirees must pay attention to. Required minimum distribution. April 1 is the deadline for taking your first annual required minimum distribution (RMD) — which some financial outfits call minimum required distributions (MRD) — from your 401(k)s and traditional IRAs.