To explain when work comp checks are due, I need to start by talking a little about the two general categories of weekly benefits under Iowa law. See here for a longer discussion about these two different kinds of benefits. The short version is that from the time of a work injury until you reach maximum medical improvement the payments are called either temporary total disability benefits or healing period benefits. The purpose of these benefits is to replace the wages that you missed as a result of your work injury. This category of benefits can theoretically last forever as long as your condition continues to improve.
As soon as your medical condition has reached maximum medical improvement then the nature of the payments change from the healing or temporary benefits to what is called permanent partial disability benefits. The purpose of the permanent partial disability benefits is to compensate you for the permanent disability that you will have for the rest of your life as a result of the work injury.
If you are injured on the job in Iowa and are unable to work there is an initial three day waiting period before you become eligible to receive workers’ compensation benefits. For example, if you are injured on December 31, and are able to return to work on January 1, 2, or 3 you are not eligible to receive any workers’ compensation benefits. See Iowa Code Section 85.32. (There is a classification issue that effects this waiting period. If you are going to end up with a permanent disability, then the payments should start immediately, and there should not be a healing period. See Iowa Code Section 85.34(1). However, if it is not clear that you are going to end up with a permanent disability, then the waiting period applies).