A.R.S. § 48-2073: Redemption

A. A party having an interest in the lot may redeem the property at any time before the execution and delivery of a deed by paying to the district the amount for which the property was sold and an additional five per cent if paid within three months from the date of sale, ten per cent if paid within six months, twelve per cent if paid within nine months, fifteen per cent if paid within twelve months or twenty per cent if paid after twelve months.

B. When redemption is made, the agent shall note that fact on the duplicate certificate of sale in his office and deposit the amount paid with the treasurer. The treasurer shall credit the purchaser named in the certificate of sale with the amount and pay the amount to the purchaser or his assignee on the surrender of the certificate of sale.