The 60/40 Method

The Technical Mechanism

The 60/40 Method is a structured mathematical mechanism that splits the mortgage into two distinct but coordinated components, ensuring strict alignment with household income while preserving theoretical value.

A

Active Portion

  • Active, amortizing portion
  • Strictly income-aligned
  • Sustainable, predictable payments
B

Stabilization Portion

  • Deferred / moderated structure
  • Preserves remaining balance
  • Does not burden household cash flow
Original Mortgage
Split
Component A
Component B

Interactive Stability Evaluation Tool

Important: This tool evaluates housing affordability stability under a non-lending institutional framework without generating loan offers or terms.

Remaining principal balance (not including future interest).
Used only to compute the “Today” housing load.
Used to evaluate the 50% affordability cap.
Natural number 0–100. This percentage is used as the eligibility threshold.
Enter the annual amount (Florida-style). Applied for Year 1 only.
Enter the annual amount. Applied for Year 1 only.
⚠️ Current Housing Burden (Reference Only)

This reflects your current monthly housing load: mortgage payment + (annual property tax / 12) + (annual property insurance / 12). Program selection uses a 50% monthly income cap.

Current Monthly Housing Load:
Part A — Active Stability Note (60%)

The system tests stability windows (10 / 15 / 20 / 30 years) and selects the first window where the estimated program housing load is at or below 50% of monthly income.
This is not a loan term. It is a stability evaluation window. Tax & insurance are applied for Year 1 only.

Shown as $ / month and % of monthly income.
Shown as $ / year and % (same % basis for consistency).
🔒 Part B — Deferred Stability Note (40%)

Part B inherits the same stability window selected in Part A. Tax & insurance are applied for Year 1 only.

All Stability Windows (10 / 15 / 20 / 30)

These are the Year 1 program housing-load estimates for each evaluation window (using the threshold % you entered).

Window Part A (60%) — Monthly (Year 1) Part A (60%) — Annual (Year 1) Part B (40%) — Monthly (Year 1) Part B (40%) — Annual (Year 1)
Housing Burden Comparison Summary
Today (Current Housing Load)

$0.00 / month

0.00% of monthly income

After Program Evaluation (Part A Active Load)

This calculator is for informational and structural evaluation purposes only. It does not generate loan offers, refinancing terms, payment schedules, or financial commitments.