What goes into your insurance costs? Texas Department of Insurance sent this bulletin at 01/09/2024 03:48 PM CST View as webpage Insurance companies determine premiums and rates by looking at you. Watch Why your insurance costs change But it’s not just you. Insurance companies consider factors that affect the cost of all claims. Watch Why everyone's insurance costs change TDI doesn’t set insurance rates or premiums. But state law requires that rates meet several requirements. Watch How Texas regulates insurance costs Rates vs. Premiums