Term life insurance is typically sold in lengths of one, five, 10, 15, 20, 25 or 30 years. Coverage amounts vary depending on the policy but can go into the millions. Most people buy term life insurance for a length long enough to cover their prime working years. That way, if they die early, they can help a surviving spouse or other beneficiary meet short-term financial needs like paying off a mortgage or supporting their kids through college.