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One mortgage policy, 5,760 applicants

Every square is a separate applicant, priced live by a 138-rule decision table: credit score across, loan-to-value up. Change the borrower and all 5,760 are re-decided in one round trip.

Employment
Property
Decisions
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Round trip
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Per decision
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Rules in play
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3.59%Approved · rate7.63%
Refer to underwriter Decline
Loan-to-value
Credit score

How it works

  1. One policy, written as prose

    The lending policy (score floors, loan-to-value caps, buy-to-let and self-employed rules, first-time buyer products) was written as a paragraph and turned into a 138-rule decision table.

  2. Every square is an applicant

    The grid is 5,760 applicants: credit score from 500 to 850 across, loan-to-value from 50% to 100% up. Each one is a separate set of inputs sent to the table.

  3. One round trip per change

    Changing employment, property use or first-time buyer re-decides the whole grid in a single batch request. The first rule that matches each applicant sets its decision, rate and product.

  4. Rules show up as regions

    Point at a rule in the table below and the map dims everything that rule doesn't decide, so you can see exactly which applicants each line of policy covers.

The rules behind the map 138 rules · first match wins

Policy, as writtenPrice mortgages from credit score and loan-to-value. Below 560 decline. Above 95% LTV decline, except salaried first-time buyers buying a home with 720+ get First Home 100 at 5.69%. Buy-to-let: max 75% LTV, min score 660, refer below 700, rates 4.39% to 5.59% by score and LTV. Second homes: max 85% LTV, min 640, refer above 80% LTV under 720, rates 4.29% to 5.39%. Self-employed: decline under 640, refer above 90% LTV or under 680. Contractors: decline under 620, refer above 90% LTV under 740. First-time buyers with 680+ get First Home 95 at 5.09% between 90% and 95%. Scores 680–699 at 80–85% LTV need mortgage insurance (refer). Scores 600–619 with at most 60% LTV get Equity Builder at 5.49%. Spring Offer: 740–759 at 86–88% LTV, 4.49%. Low scores cap the loan-to-value: under 580 decline above 65%, under 600 above 72%, under 620 above 80%, under 640 above 86%, under 660 above 91%; anyone else under 600 goes to specialist lending. Everyone else: a base rate per 20-point score band, from 3.59% at 840+ rising to about 6.2% at 600, plus an LTV loading in 5% steps (nothing up to 60%, rising to +1.35% at 95%).

# Credit scoreLoan-to-value (%)EmploymentProperty useFirst-time buyer DecisionRateProduct Hits
1 < 560···· Decline None Below minimum score
2 ≥ 720> 95SalariedHomeyes Approve 5.69% First Home 100
3 ·> 95··· Decline None LTV above 95%
4 ·> 75·Buy-to-let· Decline None Buy-to-let max 75% LTV
5 < 660··Buy-to-let· Decline None Buy-to-let min score 660
6 < 700··Buy-to-let· Refer 6.49% Buy-to-let underwriting
7 ≥ 780≤ 60·Buy-to-let· Approve 4.39% Buy-to-let Prime
8 ·≤ 60·Buy-to-let· Approve 4.79% Buy-to-let
9 ≥ 760≤ 70·Buy-to-let· Approve 4.89% Buy-to-let Prime
10 ·≤ 70·Buy-to-let· Approve 5.19% Buy-to-let
11 ···Buy-to-let· Approve 5.59% Buy-to-let
12 ·> 85·Second home· Decline None Second home max 85% LTV
13 < 640··Second home· Decline None Second home min score 640
14 < 720> 80·Second home· Refer 6.19% Second home underwriting
15 ≥ 760≤ 70·Second home· Approve 4.29% Second Home Prime
16 ·≤ 70·Second home· Approve 4.69% Second Home
17 ≥ 740··Second home· Approve 4.99% Second Home
18 ···Second home· Approve 5.39% Second Home
19 < 640·Self-employed·· Decline None Self-employed min score 640
20 ·> 90Self-employed·· Refer 6.09% Two years of accounts
21 < 680·Self-employed·· Refer 5.99% Two years of accounts
22 < 620·Contractor·· Decline None Contractor min score 620
23 < 740> 90Contractor·· Refer 5.89% Contract history check
24 ≥ 680> 90··yes Approve 5.09% First Home 95
25 680–69980–85··· Refer 5.79% Mortgage insurance required
26 600–619≤ 60··· Approve 5.49% Equity Builder
27 740–75986–88··· Approve 4.49% Spring Offer
28 < 580> 65··· Decline None Score too low for LTV
29 < 600> 72··· Decline None Score too low for LTV
30 < 620> 80··· Decline None Score too low for LTV
31 < 640> 86··· Decline None Score too low for LTV
32 < 660> 91··· Decline None Score too low for LTV
33 < 600···· Refer 6.49% Specialist lending
34 ≥ 840≤ 60··· Approve 3.59% Prime Fixed
35 ≥ 820≤ 60··· Approve 3.77% Prime Fixed
36 ≥ 800≤ 60··· Approve 3.95% Prime Fixed
37 ≥ 780≤ 60··· Approve 4.15% Prime Fixed
38 ≥ 760≤ 60··· Approve 4.35% Prime Fixed
39 ≥ 740≤ 60··· Approve 4.56% Standard Fixed
40 ≥ 720≤ 60··· Approve 4.78% Standard Fixed
41 ≥ 700≤ 60··· Approve 5.01% Standard Fixed
42 ≥ 680≤ 60··· Approve 5.25% Standard Fixed
43 ≥ 660≤ 60··· Approve 5.49% Near Prime
44 ≥ 640≤ 60··· Approve 5.75% Near Prime
45 ≥ 620≤ 60··· Approve 6.01% Near Prime
46 ≥ 600≤ 60··· Approve 6.28% Near Prime
47 ≥ 840≤ 65··· Approve 3.67% Prime Fixed
48 ≥ 820≤ 65··· Approve 3.85% Prime Fixed
49 ≥ 800≤ 65··· Approve 4.03% Prime Fixed
50 ≥ 780≤ 65··· Approve 4.23% Prime Fixed
51 ≥ 760≤ 65··· Approve 4.43% Prime Fixed
52 ≥ 740≤ 65··· Approve 4.64% Standard Fixed
53 ≥ 720≤ 65··· Approve 4.86% Standard Fixed
54 ≥ 700≤ 65··· Approve 5.09% Standard Fixed
55 ≥ 680≤ 65··· Approve 5.33% Standard Fixed
56 ≥ 660≤ 65··· Approve 5.57% Near Prime
57 ≥ 640≤ 65··· Approve 5.83% Near Prime
58 ≥ 620≤ 65··· Approve 6.09% Near Prime
59 ≥ 600≤ 65··· Approve 6.36% Near Prime
60 ≥ 840≤ 70··· Approve 3.77% Prime Fixed
61 ≥ 820≤ 70··· Approve 3.95% Prime Fixed
62 ≥ 800≤ 70··· Approve 4.13% Prime Fixed
63 ≥ 780≤ 70··· Approve 4.33% Prime Fixed
64 ≥ 760≤ 70··· Approve 4.53% Prime Fixed
65 ≥ 740≤ 70··· Approve 4.74% Standard Fixed
66 ≥ 720≤ 70··· Approve 4.96% Standard Fixed
67 ≥ 700≤ 70··· Approve 5.19% Standard Fixed
68 ≥ 680≤ 70··· Approve 5.43% Standard Fixed
69 ≥ 660≤ 70··· Approve 5.67% Near Prime
70 ≥ 640≤ 70··· Approve 5.93% Near Prime
71 ≥ 620≤ 70··· Approve 6.19% Near Prime
72 ≥ 600≤ 70··· Approve 6.46% Near Prime
73 ≥ 840≤ 75··· Approve 3.89% Prime Fixed
74 ≥ 820≤ 75··· Approve 4.07% Prime Fixed
75 ≥ 800≤ 75··· Approve 4.25% Prime Fixed
76 ≥ 780≤ 75··· Approve 4.45% Prime Fixed
77 ≥ 760≤ 75··· Approve 4.65% Prime Fixed
78 ≥ 740≤ 75··· Approve 4.86% Standard Fixed
79 ≥ 720≤ 75··· Approve 5.08% Standard Fixed
80 ≥ 700≤ 75··· Approve 5.31% Standard Fixed
81 ≥ 680≤ 75··· Approve 5.55% Standard Fixed
82 ≥ 660≤ 75··· Approve 5.79% Near Prime
83 ≥ 640≤ 75··· Approve 6.05% Near Prime
84 ≥ 620≤ 75··· Approve 6.31% Near Prime
85 ≥ 600≤ 75··· Approve 6.58% Near Prime
86 ≥ 840≤ 80··· Approve 4.04% Prime Fixed
87 ≥ 820≤ 80··· Approve 4.22% Prime Fixed
88 ≥ 800≤ 80··· Approve 4.40% Prime Fixed
89 ≥ 780≤ 80··· Approve 4.60% Prime Fixed
90 ≥ 760≤ 80··· Approve 4.80% Prime Fixed
91 ≥ 740≤ 80··· Approve 5.01% Standard Fixed
92 ≥ 720≤ 80··· Approve 5.23% Standard Fixed
93 ≥ 700≤ 80··· Approve 5.46% Standard Fixed
94 ≥ 680≤ 80··· Approve 5.70% Standard Fixed
95 ≥ 660≤ 80··· Approve 5.94% Near Prime
96 ≥ 640≤ 80··· Approve 6.20% Near Prime
97 ≥ 620≤ 80··· Approve 6.46% Near Prime
98 ≥ 600≤ 80··· Approve 6.73% Near Prime
99 ≥ 840≤ 85··· Approve 4.24% Prime Fixed
100 ≥ 820≤ 85··· Approve 4.42% Prime Fixed
101 ≥ 800≤ 85··· Approve 4.60% Prime Fixed
102 ≥ 780≤ 85··· Approve 4.80% Prime Fixed
103 ≥ 760≤ 85··· Approve 5.00% Prime Fixed
104 ≥ 740≤ 85··· Approve 5.21% Standard Fixed
105 ≥ 720≤ 85··· Approve 5.43% Standard Fixed
106 ≥ 700≤ 85··· Approve 5.66% Standard Fixed
107 ≥ 680≤ 85··· Approve 5.90% Standard Fixed
108 ≥ 660≤ 85··· Approve 6.14% Near Prime
109 ≥ 640≤ 85··· Approve 6.40% Near Prime
110 ≥ 620≤ 85··· Approve 6.66% Near Prime
111 ≥ 600≤ 85··· Approve 6.93% Near Prime
112 ≥ 840≤ 90··· Approve 4.54% Prime Fixed
113 ≥ 820≤ 90··· Approve 4.72% Prime Fixed
114 ≥ 800≤ 90··· Approve 4.90% Prime Fixed
115 ≥ 780≤ 90··· Approve 5.10% Prime Fixed
116 ≥ 760≤ 90··· Approve 5.30% Prime Fixed
117 ≥ 740≤ 90··· Approve 5.51% Standard Fixed
118 ≥ 720≤ 90··· Approve 5.73% Standard Fixed
119 ≥ 700≤ 90··· Approve 5.96% Standard Fixed
120 ≥ 680≤ 90··· Approve 6.20% Standard Fixed
121 ≥ 660≤ 90··· Approve 6.44% Near Prime
122 ≥ 640≤ 90··· Approve 6.70% Near Prime
123 ≥ 620≤ 90··· Approve 6.96% Near Prime
124 ≥ 600≤ 90··· Approve 7.23% Near Prime
125 ≥ 840≤ 95··· Approve 4.94% Prime Fixed
126 ≥ 820≤ 95··· Approve 5.12% Prime Fixed
127 ≥ 800≤ 95··· Approve 5.30% Prime Fixed
128 ≥ 780≤ 95··· Approve 5.50% Prime Fixed
129 ≥ 760≤ 95··· Approve 5.70% Prime Fixed
130 ≥ 740≤ 95··· Approve 5.91% Standard Fixed
131 ≥ 720≤ 95··· Approve 6.13% Standard Fixed
132 ≥ 700≤ 95··· Approve 6.36% Standard Fixed
133 ≥ 680≤ 95··· Approve 6.60% Standard Fixed
134 ≥ 660≤ 95··· Approve 6.84% Near Prime
135 ≥ 640≤ 95··· Approve 7.10% Near Prime
136 ≥ 620≤ 95··· Approve 7.36% Near Prime
137 ≥ 600≤ 95··· Approve 7.63% Near Prime
138 ····· Refer None Manual review

These rules started as a paragraph of plain-English policy. Yours can too.

See pricing