There are some basic facts about when and how Social Security checks are due and delivered that confuse many people. To help you understand, here are three rules about getting Social Security checks that everyone needs to know. No. 1: Social Security benefits are paid one month behind. In other words, the benefit payment for May will be sent to you in June. No. 2: For most people, your Social Security benefit arrives in your bank account on the second, third, or fourth Wednesday of each month. Although, some people, mostly old-timers, get their check on the third of each month. No. 3: Social Security benefits are not prorated. As you will learn, this is good news while you are alive. But it can be bad news for your survivors after you die. The rest of this column will explain these rules. So, the first rule is pretty cut and …