This reverse mortgage calculator estimates how much you can borrow based on your age, home value, and current interest rates using the FHA HECM principal limit factor method — and shows how your loan balance grows over time as interest compounds. To compare what staying in your home versus selling costs you over 10 or 20 years, visit our Mortgage Calculator.
What a Reverse Mortgage Actually Gives You — and Takes Away
More than 1.3 million reverse mortgages are currently active in the United States, with the vast majority being FHA-insured Home Equity Conversion Mortgages — HECMs. Most borrowers who take a reverse mortgage are 70 or older, own their home outright or nearly so, and need to convert equity into income without selling the property or making monthly payments. The appeal is genuine: access to six figures of tax-free proceeds with no required monthly payment for as long as you live in the home. The cost is equally real: a loan balance that grows every month through compounding interest and fees, eroding the equity available to your estate.
A reverse mortgage does not eliminate your financial obligations. You must continue paying property taxes, homeowner's insurance, and basic maintenance costs. Failure to meet any of these requirements triggers default — the same outcome as missing a payment on a standard mortgage. HUD data shows that approximately 2% of reverse mortgage borrowers face foreclosure each year due to property charge defaults — primarily tax and insurance delinquencies — not payment delinquencies, since no payment is required.
The reverse mortgage calculator gives you two numbers that matter most: how much you can access from your equity and what your loan balance will be at various future dates. The second number — how the balance grows — is the one most reverse mortgage marketing never shows you clearly. Seeing a projected balance of $380,000 on a home worth $500,000 in 15 years tells you exactly what your estate or your options will look like if you remain in the home long-term.
Maximum Loan Proceeds — HECM proceeds are determined by three factors: your age, your home value up to the FHA lending limit of $1,089,300 in 2024, and current interest rates. A 75-year-old with a $450,000 home at current rates can typically access 45% to 55% of the home's value — approximately $202,000 to $247,000 — as an initial principal limit before closing costs and any existing mortgage payoff.
No Required Monthly Payment — Unlike a standard mortgage or a HELOC, a reverse mortgage requires no monthly principal or interest payment for as long as you live in the home as your primary residence. A 72-year-old borrower who takes a $180,000 lump sum has no repayment obligation until they sell, move out permanently, or pass away — a genuine cash flow benefit for retirees on fixed incomes.
Flexible Disbursement Options — HECM proceeds can be taken as a lump sum, a monthly payment for life or a set term, a line of credit that grows over time, or any combination. The line of credit option is particularly valuable — the unused portion grows at the same rate as your loan's interest rate, meaning a $100,000 unused credit line at 7% grows to approximately $197,000 in 10 years.
Tax-Free Proceeds — Reverse mortgage proceeds are not taxable income because they are loan advances, not earnings. A borrower receiving $2,000 per month from a reverse mortgage tenure payment does not report that amount as income — an important distinction for retirees managing Social Security taxation thresholds and Medicare premium calculations.
Spousal Protections — Non-borrowing spouses who are younger than 62 at origination — below the HECM eligibility age — are protected from displacement if the borrowing spouse dies. A borrowing spouse aged 74 who passes away does not trigger immediate repayment if their 68-year-old non-borrowing spouse continues meeting property charge obligations and occupancy requirements.
Drawbacks of Reverse Mortgages
The loan balance grows every month regardless of whether you draw additional funds. Interest compounds on the outstanding balance plus any accrued fees — meaning the balance in year 15 may be double or triple the original proceeds depending on the interest rate and how long the loan has been outstanding. A $200,000 reverse mortgage at 7% compounds to approximately $394,000 in 10 years and $776,000 in 20 years — numbers that can exceed the home's value, leaving nothing for heirs and potentially triggering FHA mortgage insurance claims.
Upfront costs on HECMs are substantial. FHA mortgage insurance premiums total 2% of the home value at closing plus 0.5% annually on the outstanding balance. Origination fees can reach $6,000. Title, appraisal, and closing costs add another $2,000 to $5,000. Total upfront costs of $15,000 to $25,000 on a $400,000 home are common — costs that are typically financed into the loan balance and immediately begin compounding. These costs make reverse mortgages economically inefficient for borrowers who move or pass away within 3 to 5 years of origination.
Heirs who want to keep the home after the borrower's death must repay the full outstanding loan balance — not the original proceeds. If the balance has grown to $380,000 and the home is worth $450,000, heirs must either pay $380,000 in cash or refinance the home to retire the reverse mortgage. Heirs who cannot secure financing within 6 months of the borrower's death typically must sell the property. FHA insurance covers any balance exceeding the home's sale value, protecting heirs from owing more than the home is worth — but it does not preserve equity that compounding interest has consumed. For a direct comparison of your equity position under a reverse mortgage versus a standard refinance, visit the Refinance Calculator.
HECM Principal Limit Factor Method
The reverse mortgage calculator uses the FHA HECM principal limit factor method to estimate your available proceeds. HUD publishes principal limit factor tables that vary by borrower age and the loan's expected interest rate — an average of the 10-year LIBOR swap rate plus the lender's margin. The calculator takes your age, home value capped at the FHA lending limit, and current expected rate, looks up or interpolates the appropriate principal limit factor — typically 0.40 to 0.60 for borrowers aged 65 to 80 — and multiplies it by the eligible home value to produce the initial principal limit. It then deducts upfront costs and any existing mortgage balance to produce the net proceeds available to you. For the balance projection, it compounds the outstanding balance at the effective interest rate monthly into the future.
Proprietary Jumbo Reverse Mortgage Method
Proprietary reverse mortgages — offered by private lenders outside the FHA HECM program — are designed for homeowners with properties valued above the FHA lending limit. A home worth $1.5 million can access a significantly larger principal limit through a proprietary product than through a HECM capped at $1,089,300. Proprietary reverse mortgages do not require FHA mortgage insurance, which reduces upfront costs but removes the FHA non-recourse protections that prevent heirs from owing more than the home's sale value.
The HECM method suits most borrowers with homes valued under the FHA limit who want government-backed protections, counseling requirements, and standardized terms. The proprietary method suits high-value homeowners who need larger proceeds than HECM limits allow and are comfortable with private lender terms. The trade-off is consistency and protection versus access to equity — both are legitimate depending on your home value and the amount you need to access.
Tips for Evaluating a Reverse Mortgage
Calculate your projected loan balance at age 85 and 90 before deciding — The reverse mortgage calculator shows you not just today's proceeds but tomorrow's balance. Run the projection to your expected longevity and compare the projected balance against your home's current value. If the balance exceeds the home value within your expected lifetime, the equity you hoped to preserve for your estate will be fully consumed by compounding interest.
Never take a reverse mortgage without completing the required HUD counseling first — FHA requires all HECM applicants to complete an independent counseling session with a HUD-approved counselor before applying. This session is not a formality — counselors identify alternatives, explain the full cost structure, and review your specific situation. The counseling fee is typically $125 to $200 and frequently reveals options the originating lender did not present.
Run the calculator at both a lump sum and a line of credit to compare 10-year outcomes — A $200,000 lump sum begins compounding immediately on the full balance. A $200,000 credit line only compounds on amounts actually drawn — and the undrawn portion grows independently. For borrowers who do not need immediate access to the full proceeds, the line of credit option almost always produces a better long-term equity outcome than the lump sum.
Compare the reverse mortgage net proceeds against what a downsizing sale would produce — A 74-year-old with a $500,000 home and no mortgage who takes a reverse mortgage receives approximately $200,000 to $250,000 in initial proceeds. Selling the home and purchasing a $250,000 condominium outright produces $250,000 in net equity with no compounding loan balance and no property maintenance obligation. The reverse mortgage sometimes wins on lifestyle grounds — staying in a familiar home has genuine value — but the financial comparison should be explicit before deciding.
Get competing offers from at least three HECM lenders before choosing — Reverse mortgage lenders set their own margins above the expected rate, and those margins directly affect your principal limit and long-term balance growth. A margin of 2.50% versus 3.25% on a $200,000 reverse mortgage costs approximately $38,000 in additional balance growth over 10 years. Use the Refinance Calculator to model the long-term balance difference between margin rates before committing to a specific lender.
Dealing with a Reverse Mortgage That Threatens Your Home or Estate
Request a repayment deferral from your servicer if property charges are delinquent — HUD guidelines allow servicers to offer repayment plans for tax and insurance delinquencies before initiating foreclosure. A borrower who is $4,000 behind on property taxes can typically negotiate a 12 to 24 month repayment plan that adds the arrearage to the loan balance rather than triggering immediate default proceedings. Contact your servicer in writing at least 30 days before a tax lien is filed to maximize your deferral options.
Repay a portion of the balance to preserve estate equity if the balance is growing faster than expected — Nothing prevents a reverse mortgage borrower or their family from making voluntary repayments during the loan's life. A $20,000 voluntary repayment on a $180,000 balance at 7% saves approximately $1,400 in annual interest and reduces the balance by $20,000 permanently. For borrowers whose heirs want to inherit the property, scheduled annual repayments of $10,000 to $15,000 can meaningfully slow equity erosion over a 10 to 15 year loan life.
Refinance a HECM into a new HECM if interest rates have fallen significantly or your home has appreciated — HUD allows HECM-to-HECM refinancing when the net benefit — additional proceeds available after closing costs — justifies the transaction. If your home has appreciated from $450,000 to $600,000 and your age has increased from 72 to 78, a new HECM may generate $40,000 to $60,000 in additional available proceeds. HUD requires the net benefit to exceed the closing costs by a meaningful margin. Use the Mortgage Calculator to model whether the additional equity access justifies the refinancing costs before applying.
Establish a family communication plan about the reverse mortgage before the borrower passes — Heirs who are surprised by a reverse mortgage balance at the time of death have only 6 months to resolve it — a compressed timeline for estate administration, appraisals, and refinancing decisions. Sharing the current balance, the projected future balance, and the repayment options with family members before death allows heirs to prepare financing, set aside funds, or coordinate a sale without the pressure of an unfamiliar time constraint.
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