The selectmen or assessors may apply all or a portion of the amount of any taxes abated, along with interest computed according to this chapter, to any outstanding taxes owed by the taxpayer to the municipality. Taxes shall be considered outstanding if they are subject to interest pursuant to N.H. Rev. Stat. § 76:13. The selectmen or assessors shall send notice to the taxpayer of the amount credited against outstanding taxes and the date the credit was recorded.