Ariz. Rev. Stat. § 20-1550
A. A mortgage guaranty insurer shall maintain at all times a minimum policyholder position in an amount not less than the amount required by this section. The face amount of an insured mortgage shall include reinsurance assumed and shall be calculated net of reinsurance that is ceded to an insurer either:
B. If a policy of mortgage guaranty insurance insures individual loans with a percentage claim settlement option on the loans, the insurer shall maintain a minimum policyholder position based on each one hundred dollars of the face amount of an insured mortgage, the percentage coverage or claim settlement option and the loan-to-value category. The required amount of minimum policyholder position is calculated in the following manner:
1. If the total indebtedness is greater than seventy-five per cent of the value of the collateral property at the date of insurance, the following applies:
Minimum policyholder
position per one hundred
Per cent dollars of the face
coverage amount of an insured mortgage
5% $ .20
10 .40
15 .60
20 .80
25 1.00
30 1.10
35 1.20
40 1.30
45 1.35
50 1.40
55 1.50
60 1.55
65 1.60
70 1.65
75 1.75
80 1.80
85 1.85
90 1.90
95 1.95
100 2.00
If the per cent coverage is between any five percentage point increment, the factor for minimum policyholder position per one hundred dollars of the face amount of an insured mortgage shall be prorated.
C. If a policy of mortgage guaranty insurance provides coverage on a pool of loans subject to an aggregate loss limit and if the equity:
1. Is not more than fifty per cent and not less than twenty per cent, or equity plus any prior insurance or a deductible equals twenty-five per cent of the value of the collateral property at the date of insurance, the required amount of minimum policyholder position is calculated as follows:
Minimum policyholder
position per one hundred
Per cent dollars of the face
coverage amount of an insured mortgage
1% $ .30
5 .50
10 .60
15 .65
20 .70
25 .75
30 .775
40 .80
50 .825
60 .85
70 .875
75 .90
80 .925
90 .95
100 1.00
If the per cent coverage is between any specified increment, the factor for minimum policyholder position per one hundred dollars of the face amount of an insured mortgage shall be prorated.
E. If a policy of mortgage guaranty insurance provides for coverage on loans secured by second liens:
1. If the policy provides coverage on individual loans, the required amount of minimum policyholder position is calculated according to subsection B of this section after the per cent of coverage and the loan-to-value ratios have been determined as follows:
I. For the purposes of this section, except as otherwise provided:
2. "Face amount of an insured mortgage":