As Haines’ population continues to age, an increasing number of homes in town qualify for the state-mandated exemption from property taxes.

About 17% of the total assessed value of residential property in Haines is owned by seniors or disabled veterans and exempt from taxes, according to borough data.

The tax-exempt status will cost the borough $414,389 in lost revenue this year. The borough expects to collect almost $3.4 million in property taxes this year on…