A reverse mortgage calculator estimates how much home equity an older homeowner could turn into cash through a Home Equity Conversion Mortgage, or HECM. It is not simply home value minus the mortgage. It depends on the youngest borrower's age, appraised value, expected rate, mandatory payoffs, and upfront costs.
Inputs are home value, one borrower age, interest rate, principal limit assumption, initial fee percentage, existing mortgage balance, and payout choice. The tool shows the principal limit, the amount left after liens and upfront insurance, and an estimate of the monthly payment or line growth for the selected option. On magnitude: because official HECM factors also price in the expected interest rate, a lender's actual figure can differ from this tool's simplified age-based estimate, sometimes by a noticeable amount when rates are high relative to the age-based assumption. Treat the output as an order of magnitude for planning, not as the number a lender will produce.
A HECM is a loan, not a grant. The balance grows over time because interest and insurance accrue, and the loan becomes due when the last borrower dies, sells the home, or moves out permanently. You do not make monthly principal and interest payments, but you must still pay property taxes, hazard insurance, association dues, and maintenance.
Use the result as a planning estimate, not a lender quote, eligibility decision, or personalized advice. Review HUD's HECM information and the CFPB's reverse-mortgage guidance, speak with a HUD-approved counselor, and ask a lender for a formal estimate using current program factors.
How to Use the Reverse Mortgage Calculator
- Enter value and age: Type the "Home Value" and the "Borrower Age", which must be 62 or older for a reverse mortgage.
- Review rate and fees: Enter the "Interest Rate (%)", and note the "Principal Limit Factor (%)" auto-sets from the borrower age, though you can override it. Add any "Initial Fees (%)" to model upfront costs.
- Subtract the payoff: Enter any "Existing Mortgage ($)" balance, because it must be paid off from the proceeds first.
- Pick a Draw Option: Choose "Lump Sum", "Term (Monthly Payments)", or "Line of Credit". The Term option reveals "Payment Term (Months)", and the Line of Credit option reveals "Line Growth Window (Months)".
- Calculate: Press Calculate to see the "Net Available Funds", "Principal Limit", "Upfront Mortgage Insurance", and either an indicative monthly payment or the projected line after the growth window.
The figures are simplified planning estimates; speak with a HUD-approved counselor and ask a lender for a formal determination.
How a Home Equity Conversion Mortgage (HECM) Works
How HECM Proceeds Are Taxed, and Why They Are Still a Loan
A HECM is an FHA-insured loan that lets eligible homeowners age 62 or older borrow against home equity. The lender advances cash, the loan is secured by the home, and the borrower keeps title and can stay while meeting the loan obligations. Instead of a falling balance with required monthly payments, the balance can rise as interest and mortgage insurance accrue. See HUD's HECM program information for eligibility and program details.
The phrase tax-free cash needs care. HECM advances are loan proceeds, so they are generally not treated as taxable income, unlike wages or traditional retirement withdrawals. They are still borrowed money, and they can affect eligibility for needs-based benefits such as Medicaid or Supplemental Security Income. A tax advisor or benefits counselor should review the household's situation.
Homeowners use HECMs to pay off a first mortgage, create a reserve for repairs or medical costs, supplement retirement income, or reduce pressure to sell in a downturn. The common thread is access to equity without a required monthly loan payment, at the cost of a growing balance and upfront expenses.
The Non-Recourse Guarantee: You or Your Heirs Never Owe More Than Home Value
A HECM is a non-recourse loan: under the program's rules, the borrower or heirs generally are not personally responsible for a loan shortfall beyond the home's value when the loan is settled. FHA insurance protects the lender against an eligible shortfall. Heirs who want to keep the home may have specific settlement options and deadlines, so they should get advice from the servicer and a HUD-approved counselor.
That protection applies to the loan balance, not to unpaid property taxes, hazard insurance, association dues, or property damage. Those obligations still belong to the owner, and failing to meet them can trigger default and foreclosure. Heirs who want the home must follow the servicer's settlement process; if it is sold, any remaining equity may go to the estate.
Calculating Your Principal Limit (Available Proceeds)
The Role of Age: Why Older Borrowers Unlock Higher Equity Percentages
The principal limit factor is the share of home value the loan can initially make available. Age is the strongest driver here. Older borrowers have a shorter expected loan life, so more value can be released. The tool uses this simplified table and fills the percentage from the age.
Simplified tool assumptions ? not official HUD principal limit factors.
| Borrower age (tool estimate) | Principal limit factor | Principal limit on a $400,000 home | Net after 2% fees and no lien |
|---|---|---|---|
| 62 to 64 | 50% | $200,000.00 | $192,000.00 |
| 65 to 69 | 52% | $208,000.00 | $200,000.00 |
| 70 to 74 | 55% | $220,000.00 | $212,000.00 |
| 75 to 79 | 60% | $240,000.00 | $232,000.00 |
| 80 to 84 | 65% | $260,000.00 | $252,000.00 |
| 85 and older | 70% | $280,000.00 | $272,000.00 |
The table shows the tool's arithmetic, not official HECM factors. A real lender uses HUD actuarial tables where the expected rate also affects the factor. This calculator does not lower the PLF when the rate rises; the rate affects line growth and the term payment, while the principal limit stays tied to the age-based percentage unless the user overrides it.
Waiting can raise the available percentage, but it also means fewer years to use the money and exposure to changes in rates, home values, and program rules. Age is a planning variable, not an automatic reason to delay.
The Minimum Age 62 Rule (Using the Youngest Co-Borrower or Spouse)
The minimum age is 62. The calculator rejects a lower age. When two people are on the loan or one is a non-borrowing spouse, the youngest borrower's age generally sets the principal limit because the loan may remain outstanding until the last eligible borrower leaves.
This tool asks for one age, so a couple should enter the younger age. It does not model the separate rules for a non-borrowing spouse, including whether a spouse may remain after the borrower dies. Review those rules with a HUD-approved counselor before applying.
FHA Maximum Claim Amount Lending Caps
FHA places a ceiling on the appraised value used to calculate a HECM. If the home is worth more than the limit, the calculation uses the limit rather than the full market value. HUD updates the figure periodically, so confirm the current number with HUD or a lender, not an old article.
This calculator applies the factor to the full home value entered and does not enforce the cap. For a high-value home, the result can overstate the proceeds. Enter the lower of the appraised value and the current FHA limit for a realistic estimate, or ask the lender to calculate with the correct claim amount.
Mandatory Deductions: Satisfying Existing Liens First
Paying Off Your Existing First Mortgage at Closing
An existing mortgage or other lien must be paid at closing. The principal limit must be large enough to clear that debt before cash is available. The calculator subtracts the existing mortgage from the principal limit and calls the difference available funds. It then subtracts the initial insurance amount to produce net available funds.
On a $400,000 home at age 70, the 55% factor gives a $220,000.00 principal limit. With no existing mortgage and a 2% initial fee, the net available is $212,000.00. Add a $100,000.00 mortgage and the available funds fall to $120,000.00; after the same $8,000.00 insurance amount, the net available is $112,000.00. The monthly payment disappears, but usable equity falls by the payoff.
If the existing debt is close to or larger than the principal limit, there may be little or no cash left after closing. The calculator still shows the arithmetic, but a lender must confirm whether the loan can proceed and whether any costs must be paid outside it.
Closing Costs, FHA Initial Mortgage Insurance Premium (2%), and Origination
A HECM has several upfront costs. The initial mortgage insurance premium is generally calculated using the program's maximum claim amount, alongside an origination fee subject to HUD limits and third-party costs such as appraisal, title, recording, and counseling. Some costs may be financed, which reduces cash at closing but increases the loan balance.
The calculator simplifies these costs into one Initial Fees percentage applied to the full home value. It labels the result upfront mortgage insurance, but the field can hold a rough combined estimate for insurance, origination, and closing costs. On the $400,000 example, 2% is $8,000.00. This is a placeholder, not the actual FHA premium calculation or a complete closing-cost estimate; the tool also does not apply the FHA claim limit.
Ongoing costs are part of a real HECM. Annual mortgage insurance and servicing fees accrue over the life of the loan, and the balance grows faster when they are included. This tool does not model them. A lender's Loan Estimate and closing disclosure are the documents for a complete cost picture.
Payout Choices: Customizing Your Cash Flow Strategy
On the verified example above ($400,000 home, age 70, 55% factor, 2% fees, no lien, 6% rate), the three draw paths sit on the same $212,000.00 of net available funds. The table lines them up side by side; the figures are the tool's simplified outputs, and the lump-sum row's after-120-months figure applies the same compounding the line-of-credit path uses to a fully drawn balance, which the tool does not display itself.
| Payout path | Cash at closing | Tool projection after 120 months at 6% |
|---|---|---|
| Lump sum (first-year cap) | $127,200.00 | $231,427.26 balance if the full amount were drawn and simply accrued |
| Term, 120 monthly payments | $0.00 | $2,353.63 per month, $282,435.60 drawn over the 120 payments |
| Line of credit, left undrawn | $0.00 | $385,712.11 of available line |
Read the rows as different shapes, not different winners: the lump sum is capped in year one and starts accruing immediately, the term payment ends on schedule even if the borrower lives longer, and the line of credit draws nothing now but keeps the largest future capacity. Which shape fits depends on whether the need is immediate, ongoing, or contingent.
Option 1: Growing Line of Credit (Unused Line Expands Over Time)
A HECM line of credit lets the borrower draw cash when needed and leave the rest untouched. The unused portion can grow over time, which makes the line a standby reserve rather than a fixed bucket. This growth feature is a key difference between a HECM line and a conventional home equity line.
The calculator uses the net available funds as the starting line and compounds it monthly at the stated interest rate for the chosen growth window. On the $212,000.00 example at 6% over 120 months, the projected line is $385,712.11. That number is borrowing capacity, not investment return. If money is drawn, the loan balance rises and interest accrues on it.
The planning idea called line-of-credit growth arbitrage is to leave the line unused as a buffer against a weak market instead of drawing and investing it. The unused line may grow while the portfolio stays invested, so the household can spend from the line in a down year. The strategy is not guaranteed. Growth depends on the loan terms, the rate, and the lender's rules, and the tool's simple compounding is only an approximation.
Option 2: Guaranteed Monthly Tenure Payments (Guaranteed for Life)
A true HECM tenure payment is a monthly advance that continues while the borrower lives in the home and meets the loan obligations. The payment is based on the principal limit, age, and expected rate. It is not a fixed number of months or a term payout.
This calculator's monthly payment option is labeled Term and runs for a chosen number of months between 1 and 360. It amortizes the net available funds at the stated rate. On the $212,000.00 example over 120 months at 6%, the payment is $2,353.63 per month. That is fixed-term, not a lifetime guarantee; even a longer modeled term does not reproduce a HECM tenure option. Ask a lender for a tenure-payment estimate.
A term payout can end while the borrower is still alive, and the remaining equity may be limited. A tenure payment is designed to continue for life, but the monthly amount is usually smaller. The right choice depends on cash-flow needs, other income, and how much equity the household wants to preserve.
Option 3: Lump-Sum Payout and First-Year Limits
HECM rules limit first-year disbursements, with separate treatment for mandatory obligations and permitted additional draws. The limit is not simply 60% of net proceeds in every case. This calculator uses a rough shortcut: with no existing mortgage, it shows 60% of net available funds; with any entered mortgage, it shows the full net amount. That output is not the formal HECM first-year limit and should not be used to estimate an actual closing disbursement.
On the $212,000.00 example with no lien, the tool's simplified first-year figure is $127,200.00. With a $100,000.00 mortgage, it shows $112,000.00 because the full net amount is released by its shortcut. A lender applies the formal rule and may produce a different amount.
A lump sum can be useful for a specific cost, but it starts accruing interest immediately. Drawing only what is needed and leaving the rest in a growing line preserves borrowing capacity. The calculator does not model the cost of an immediate draw, so compare the payout choices instead of assuming the largest upfront number is best.
Safeguards, Realities, and Responsibilities for Seniors
Retaining Title: Debunking the Myth That "The Bank Takes Your House"
The borrower keeps title. The lender receives a mortgage lien, not ownership, and the CFPB's guide to reverse mortgages states that title to the home remains with the borrower when a HECM is taken out. The owner can sell, refinance, or leave the home to heirs, subject to settling the debt. The saying the bank takes your house confuses a lien with title and ignores the non-recourse protection.
The loan becomes due when the last borrower dies, sells the home, or moves out permanently. The home is usually sold, the loan is paid from the proceeds, and remaining equity goes to the borrower or estate. If the balance exceeds the value, the FHA insurance fund covers the shortfall and the heirs are not personally liable. Foreclosure is a remedy for default, not the normal end of a HECM.
Will My Kids Lose the House? The Heirs' Timeline
When the last borrower dies, the loan does not come due on the day of death, and heirs do not have to hand over keys in a week. The servicer becomes the contact point: it confirms who is authorized to act for the estate, sends payoff statements, and sets the deadlines that matter, which come from HUD rules and the servicer's own letters rather than from this page. From that point the heirs generally have three options. They can keep the home by paying off or refinancing the loan balance, often with a conventional loan, refinancing, or other funds. They can sell the home, with sale proceeds paying off the balance and any remaining equity going to the estate. Or, if the balance exceeds what the home is worth, they can typically convey it in settlement without paying anything out of pocket, because the non-recourse protection and FHA insurance cover the shortfall. The consistent advice across servicers and counselors is to contact the servicer early, in writing, and to get HUD-approved counseling before choosing; heirs who want the home should not let a payoff deadline pass without asking for the options in writing.
Mandatory Responsibilities: Paying Property Taxes, Hazard Insurance, and Maintenance
A HECM does not remove the costs of owning a home. The borrower must pay property taxes, keep hazard insurance current, pay association dues, maintain the property in good condition, and use the home as a principal residence. The CFPB's rights and responsibilities guide groups these conditions into three loan requirements, and notes that failing to meet them can lead to default and foreclosure.
Failing to meet them can make the loan due and lead to foreclosure, even with no monthly mortgage payment. A retirement budget should include taxes, insurance, utilities, repairs, and association fees. The calculator does not track these costs or test affordability. A counselor can help build that budget before the loan closes.
HUD requires independent counseling before applying. The counselor reviews the loan's costs, alternatives, and obligations, which safeguards against pressure or misunderstanding. Anyone who feels rushed by an unsolicited offer should stop and speak with a HUD-approved counselor before signing.
Commonly reported warning signs around reverse-mortgage offers, none of which proves a scam by itself but all of which justify stopping and verifying:
- Unsolicited contact: the offer arrives by phone, mail, or ad targeting rather than in response to your own inquiry.
- Pressure to act fast: any push to sign before completing independent counseling, or a claim that the terms expire this week.
- "Free money" framing: language that describes a HECM as free, effortless, or risk-free instead of as a loan that accrues interest and insurance.
Compare the proceeds with a traditional Mortgage Calculator scenario, review another equity-access option through the Home Equity Loan Calculator, and test how the funds fit your long-term plan with the Retirement Calculator.
Last verified: October 2026. Calculator figures are outputs for the inputs entered; they are not live quotes, current rates, or an offer.