"Year increments" refers to the small steps or changes that occur each year. It means that something is happening, progressing, or being measured in units of one year at a time. Full definition
Most term life insurance policies are available in 5 year increments from 5 years to 30 years (or more). (treesfullofmoney.com)
Very simply, these policies have term periods of 10, 15, 20, 25 and 30 year increments of time. (bestchoicelifeinsurance.com)
Term life gives a policy holder coverage for a specified length of time, generally in five - year increments ranging from 10 to 30 years. (policyzip.com)