Are there any companies that guarantee term Premiums for the full term being purchased? We don't want to roll the dice on something this important and find that we can't afford premiums after paying for 20 years. It's not about the life Insurance company, it's about the product type. A whole life insurance policy, for example, will have a guaranteed level premium, forever. That means each and every year of your whole life policy the premiums would remain the same. Most life insurance companies will guarantee a rate on a straight term life insurance policy for about 20 years. It doesn't mean they aren't out there. Your life insurance policy may be a 15 or 20 year term, with a 10 year renewal option. Premiums for the 10 extra years, would be determined at the time you want to exercise that option when the current term expires. However, there are policies available with level premiums for a duration of 10, 15, 20 or 30 years. Here's how you can learn more about how term life insurance works.