The office of the Tax Assessor is blaming the government’s new residential property reevaluation project for failing to send out this year’s property tax bills. Taxes usually are due August 31. But the assessor, Roy Martin, told the St. John Source the Finance Department has not ironed out technical problems with new computer software which is part of the reassessment. He said the bills are ready to be mailed but collections could not occur until Finance straightens things out.