Home/Calculators/Jumbo Reverse Mortgage
Proprietary Reverse Mortgage · Age 55+ · 2026

Jumbo Reverse Mortgage Calculator —
High-Value Homes, No FHA Cap

For homes above $1,249,125, a HECM caps your proceeds. A jumbo (proprietary) reverse mortgage uses your full home value — and includes a growing line of credit. Compare both options side by side with verified numbers.

Verified vs. Quantum LOS Age 55+ eligible Real LOS-verified estimates LOC growth modeled CRMP-verified
Advertisement
[AdSense 728×90]
Jumbo vs. HECM — side-by-side estimate
Calibrated to real Quantum LOS output · proceeds are estimates
Age (youngest borrower — jumbo min 55) 70
Under 62: only jumbo shown — HECM requires age 62.
Home value $1,800,000
Try values below $1,249,125 to see when HECM wins.
Existing mortgage balance$0
Must be paid off at closing. Large balances may make HECM non-viable.
HECM expected rate (for comparison column only) 8.00%
7.0% 7.5% 8.0% est. 8.5% 9.0%
Current HECM expected rates are ~8–9%. Jumbo fixed rates currently ~9–10% — contact for live quote.
Jumbo / Proprietary
Proprietary product · est.
HECM (FHA-insured)
Line of credit — 10-year projection
Year Age Jumbo LOC
1.5% fixed growth
HECM LOC
~6.75% growth
Jumbo rates and LTVs change with market conditions. Renee can run exact side-by-side numbers for your property using current rates in 20 minutes.
Get exact numbers →
Jumbo proceeds are estimates calibrated to verified Quantum LOS output (age 65/$950K and age 70/$3.6M data points) but do not represent current lender commitments — rates and LTV schedules change. HECM figures use verified 2026 HUD PLF tables. LOC projections: jumbo uses 1.5% fixed annual growth with $20/mo servicing fee. HECM uses expected rate + 0.5% MIP compounded monthly. Neither constitutes a loan offer. Renee Konstantine, CRMP, NMLS #1360025.

What is a Jumbo Reverse Mortgage?

A jumbo reverse mortgage — also called a proprietary reverse mortgage — is a private loan designed for homes above the $1,249,125 FHA limit. Like a HECM, it requires no monthly mortgage payment while you live in the home as your primary residence.

Unlike a HECM, jumbo products have no FHA lending limit — your full home value is used. Most are available starting at age 55, carry no FHA mortgage insurance premium, and include a line of credit that grows at a fixed rate (typically ~1.5% annually). The tradeoff: interest rates are higher (typically 9%+) and the LOC grows more slowly than a HECM LOC at current rates.

Verified Quantum LOS scenario
Karen — age 70, La Jolla home, $3.6M value
Home value
$3,600,000
Mortgage balance
$1,272,430
Paid off at closing
Jumbo principal limit
$1,447,200
40.2% of home value
Available LOC at close
$159,630
After payoff + closing costs
LOC growth rate
1.5% fixed
~$2,400/yr at current balance
Monthly payment
$0
For life of occupancy
Why HECM wasn't an option here: The HECM principal limit on a $3.6M home is capped at $503,397 (FHA limit × PLF). Karen's mortgage payoff alone is $1,272,430 — the HECM couldn't even cover it. The jumbo product's $1,447,200 principal limit covered the payoff and left $159,630 in a growing line of credit. No monthly payment. No FHA MIP.
Advertisement
[AdSense in-article]

Both have a growing line of credit — but they grow differently

A common misconception is that jumbo reverse mortgages don't have a line of credit feature. Many do — but the LOC grows at a fixed rate (typically ~1.5% annually), not at the HECM's variable rate-plus-MIP formula. At current rates, a HECM LOC grows at approximately 6.75% per year, compounding monthly.

What this means in practice: if you have a $950,000 home and are choosing between HECM and a jumbo product, the jumbo starts with more available funds ($213,383 vs. $154,700 in a recent verified scenario) but the HECM LOC will catch up in approximately 4–5 years at current rates due to its faster growth. For a $3.6M home with a large payoff, HECM isn't viable — the comparison doesn't apply.

Jumbo vs. HECM: Key Differences

FeatureHECM (FHA)Jumbo / Proprietary
Minimum age6255
Home value cap$1,249,125 FHA limitNo cap — full value
FHA mortgage insurance2% upfront + 0.5%/yrNone
Line of credit growthRate + 0.5% MIP (~6.75% now)Fixed 1.5%/yr
Rate typeARM (adjustable monthly)Fixed
FHA non-recourse guaranteeYes — FHA backedContractual (not FHA)
HUD counseling requiredYesGenerally no
Monthly payment requiredNoNo
Typical rate environment~8–9% expected rate~9–10% fixed
Best use caseHomes $600K–$1.7M, LOC strategy, CFP planningHomes $1.5M+, age 55–61, large payoff, lump sum preferred

When each option actually wins

Choose Jumbo when…
Jumbo / Proprietary
  • Home value is $1.7M+ — jumbo unlocks meaningfully more
  • You are age 55–61 (too young for HECM)
  • Your mortgage payoff exceeds HECM's principal limit
  • No upfront MIP saves $25,000+ on high-value homes
  • Fixed rate preferred over HECM ARM
  • Condo not FHA-approved
Choose HECM when…
FHA-Insured HECM
  • Home is $1.25M–$1.7M — HECM PLF often produces more
  • LOC growth strategy matters — 6.75% vs. 1.5% is significant over 10+ years
  • FHA non-recourse guarantee important to you or heirs
  • CFP is modeling HECM as buffer asset — LOC growth rate is core to the strategy
  • HUD counseling and standardized terms preferred

Jumbo Reverse Mortgage: FAQ

Does a jumbo reverse mortgage have a line of credit that grows?
Yes. Many jumbo reverse mortgage products include a line of credit that grows at a fixed rate of approximately 1.5% per year, with a $20/month servicing fee drawn from the LOC. This is structurally similar to a HECM LOC, but grows much more slowly — at current rates, a HECM LOC compounds at approximately 8.5%/year. On high-value homes where the jumbo starts with a larger base, it takes roughly 4–5 years before the HECM LOC catches up.
When is a jumbo reverse mortgage the only option?
When the existing mortgage balance exceeds the HECM principal limit — which happens on high-value homes with significant debt. On a $3.6M home, the HECM principal limit is approximately $503,000. If you owe $1.27M, the HECM simply cannot cover the payoff. A jumbo product's higher principal limit makes the transaction possible. Similarly, if you are between ages 55–61, HECM is not available — jumbo is your only option.
Why is the jumbo rate higher than HECM?
HECM rates are influenced by FHA insurance backing and the CMT index plus a lender margin. Jumbo reverse mortgages are private products without government backing, so they price at a higher fixed rate — typically 9–10%. Despite the higher rate, the elimination of the 2% upfront FHA MIP (which can be $25,000+ on a $1.25M loan) often means the jumbo produces more net available funds on high-value homes.
What is the minimum age for a jumbo reverse mortgage?
Most jumbo reverse mortgage products are available starting at age 55, compared to 62 for a HECM. This makes it the only reverse mortgage option for homeowners aged 55–61 with high-value properties.
Is a jumbo reverse mortgage non-recourse like a HECM?
Most jumbo reverse mortgage products include non-recourse language — meaning you or your heirs will never owe more than the home is worth at the time of sale. However, this protection is contractual (not FHA-backed), which is why it is important to work with a reputable lender and understand the specific contract terms. HECM's FHA non-recourse guarantee is backed by the federal government.
Renee Konstantine, CRMP
Renee Konstantine, CRMP
Associate Broker · C2 Financial Corporation · NMLS #1360025 · Licensed CA & WA
About Renee →
This page is for educational purposes only. Estimates are calibrated to verified Quantum LOS output but do not represent any specific lender's current terms — rates, LTVs, and product availability change. HECM figures use 2026 HUD PLF tables. Neither constitutes a loan commitment. Renee Konstantine, CRMP, NMLS #1360025, C2 Financial Corporation. Licensed in CA and WA.