If you are talking about a medically underwritten "individual" health insurance policy for yourself and/or family, a good rule of thumb is to allow about 30 days for the underwriting process. Each carrier is different, but many take 20 to 30 days. One of the largest carriers in my state actually tells us agents their process takes 22 days. They aren't always accurate with this time frame, but are generally close.
Call your local independent agent and verify the general length of time for your area.
Owner/Insurance Broker, KM Health Insurance Services, Hazel Crest, Illinois
It has been my experience that it is very quick, can be within a day or 2 depending on the company. Of course it will also depend on answers to the health questions on the application. For an example if there are health issues,underwriting may take a little more time.
Call your local independent agent and verify the general length of time for your area.