2005 Arizona Revised Statutes - Revised Statutes §44-1201 Rate of interest for loan or indebtedness; interest on judgments
A. Interest on any loan, indebtedness, judgment or other obligation shall be at the rate of ten per cent per annum, unless a different rate is contracted for in writing, in which event any rate of interest may be agreed to.
B. Interest on a judgment on a condemnation proceeding, including interest which is payable pursuant to section 12-1123, subsection B, shall be payable as follows:
1. If instituted by a city or town, at the rate prescribed by section 9-409.
2. If instituted by a county, at the rate prescribed by section 11-269.04.
3. If instituted by the department of transportation, at the rate prescribed by section 28-7101.
4. If instituted by a county flood control district, a power district or an agricultural improvement district, at the rate prescribed by section 48-3628.
C. A judgment given on an agreement bearing a higher rate not in excess of the maximum permitted by law shall bear the rate of interest provided in the agreement, and it shall be specified in the judgment.