You built the business. You worked the long hours. You paid the employees, covered the overhead, and reinvested in growth — often at the expense of your own retirement savings. Now, whether you're selling your business, stepping back, closing up, or simply leaving an old employer plan behind, you're facing one of the most important financial decisions of your life: what to do with your 401(k). Get it right, and you can protect decades of hard-earned savings, slash your tax bi