FHA HECM Reverse Mortgage Rules, Principal Limit Factors & Payout Formulas
A Home Equity Conversion Mortgage (HECM) is a government-backed reverse mortgage insured by the Federal Housing Administration (FHA) and regulated by HUD. It enables senior homeowners (age 62 or older) to convert home equity into tax-free cash proceeds without required monthly mortgage payments.
The HECM Principal Limit (Borrowing Capacity) Equation
Gross Principal Limit = Min(Appraised Home Value, FHA Maximum Claim Limit) × Principal Limit Factor (PLF)
*The Principal Limit Factor (PLF) is determined by HUD tables based on the age of the youngest borrower (or non-borrowing spouse) and the expected interest rate (10-year Treasury CMT margin).
Age-Based Proceeds Progression
Older borrowers receive higher borrowing percentages because of shorter actuarial life expectancies. A 62-year-old typically accesses ~35-42% of home value, while an 82-year-old may access 60-65%+.
Mandatory Lien Payoffs
HUD requires any existing primary mortgage, HELOC, or tax liens to be paid off in full at closing using HECM proceeds before any remaining net cash is disbursed to the homeowner.
HECM Payout Options Breakdown
- Lump Sum: Fixed-rate single advance at closing (subject to first-year 60% mandatory utilization caps).
- Growing Line of Credit (LOC): The unused portion of the credit line grows over time regardless of home value fluctuations.
- Tenure Payments: Guaranteed monthly cash advances for as long as at least one borrower lives in the home as primary residence.
