The reverse mortgage line of credit is, in my opinion, the single most underappreciated financial tool available to homeowners age 62 and older. I’ve been in mortgage banking for 45 years, and for the last 20, I’ve exclusively originated reverse mortgages, and there is nothing else like it in the lending world.

A traditional Home Equity Line of Credit (HELOC) can be frozen by the bank at any time, and we saw exactly that happen to millions of homeowners during the 2008 financial crisis when banks cut off access virtually overnight.

The reverse mortgage line of credit cannot be frozen, cannot be reduced, and cannot be canceled as long as you live in the home and meet your basic loan obligations.

On top of that, the unused portion grows in availability every month at a rate tied to the interest rate plus the 0.50% annual FHA mortgage insurance premium. Borrowers who set up a line of credit today and let it sit untouched for 5 to 10 years can see their available credit increase substantially, regardless of their future home value or the market.

The reverse mortgage line of credit remains the most popular choice among homeowners today, and for good reason. According to a report by AARP, 66% of borrowers chose the line of credit as the best way to access their reverse mortgage funds. The study surveyed homeowners who had completed HUD-required reverse mortgage counseling and included both borrowers who moved forward and those who decided against a reverse mortgage, providing insight into real decision-making rather than marketing impressions.

For many homeowners, the appeal comes down to flexibility. Expenses in retirement tend to arise over time, not all at once, and the line of credit allows access to equity without forcing unnecessary borrowing early on.
Although the AARP survey was conducted in 2006, it focused on HUD-counseled consumers, and the underlying HECM line of credit structure it examined remains in place today.
Reverse mortgage line of credit infographic explaining how the FHA-insured HECM credit line works, including growth over time, federal protections, and comparisons to fixed-rate reverse mortgages and HELOCs

Why So Many Homeowners Choose the Line of Credit

The reverse mortgage line of credit gives you flexibility and control. At closing, HUD restricts how much of that amount can be accessed during the first 12 months. After that initial period, any remaining available funds may be accessed at the homeowner’s discretion. There is no requirement to draw the full amount, and no schedule dictates when withdrawals must occur.

Unlike other loan types, you’re not required to take all your money upfront. You decide how much to use and when, which helps with long-term financial planning.
So, why do so many borrowers choose this option, even though it’s only offered at an adjustable interest rate?

The Answer: Flexibility

With a line of credit reverse mortgage:

  • Funds can be accessed over time rather than taken all at once
  • Interest accrues only on funds that are actually borrowed
  • Unused credit increases over time, expanding future borrowing capacity

This structure allows homeowners to preserve equity until it is needed, rather than borrowing funds prematurely.

How Interest Works With a Reverse Mortgage Line of Credit

Interest on a reverse mortgage line of credit is charged only on the money actually borrowed. Funds that remain unused do not accrue interest.
With a lump-sum payout, interest begins accruing immediately on the entire borrowed amount. With a line of credit, unused funds remain untouched and do not increase the loan balance.

As long as there is unused credit available, that unused portion grows over time. The growth rate is tied to the loan’s adjustable interest rate plus the annual Mortgage Insurance Premium renewal. While interest rates may fluctuate, the growth feature itself is guaranteed for the life of the loan, provided the borrower continues to meet program requirements.

Why Fixed-Rate Reverse Mortgages Are More Limited

Fixed-rate reverse mortgages operate under a different structure. With a fixed-rate option, all available proceeds are taken as a single lump sum at closing. There is no line of credit and no ability to access additional funds later. Interest begins accruing immediately on the full amount borrowed.

This structure can be appropriate when a homeowner needs to pay off an existing mortgage balance in full and does not anticipate needing future access to equity. Beyond that scenario, fixed-rate reverse mortgages tend to limit flexibility later in retirement.

Benefits and Federal Protections of a Reverse Mortgage Line of Credit

Compared to a fixed-rate reverse mortgage, the line of credit option offers structural advantages that are designed for long-term use rather than one-time access.

  • Funds can be accessed gradually over time.
  • Interest only accrues on money that is actually borrowed.
  • Unused credit increases over time.
  • The loan is insured by the FHA.

Because the reverse mortgage line of credit is insured by HUD through the FHA, access to available funds cannot be reduced or frozen due to changes in home values, market conditions, or the financial condition of the lender.

As long as the homeowner continues to live in the home as their primary residence, maintains the property, and stays current on property taxes and homeowners insurance, the terms of the line of credit must be honored.

If a lender or loan servicer were to leave the business, HUD would transfer servicing of the loan to another approved servicer. The new servicer is required to honor the original loan terms, including access to the remaining line of credit, for the life of the loan.

These protections are specific to the FHA-insured HECM program. Traditional bank home equity lines of credit do not offer the same guarantees and can be reduced or frozen at the lender’s discretion, often during periods of economic stress when access to funds matters most.
Homeowner Responsibilities: A reverse mortgage does not eliminate homeowner obligations. Borrowers must continue to live in the home as their primary residence, pay property taxes and homeowners’ insurance, and maintain the home in reasonable condition. Failure to meet these obligations can result in the loan entering default, regardless of the selected payout option.

Understanding the Reverse Mortgage Line of Credit Growth Feature

Another notable feature of the line of credit reverse mortgage is the credit line growth rate. I have often heard this mischaracterized as interest earned, which it is not. Still, the unused portion of the credit line grows at the same rate at which the loan accrues interest, plus the Mortgage Insurance Premium (MIP) renewal.

reverse mortgage line of credit growth chart

Example of How the Line of Credit Can Grow Over Time

Let’s walk through a simple example to show how your unused funds can grow over time. Suppose today’s interest rate (known as the fully indexed accrual rate) is 6.00%, and you add the Mortgage Insurance Premium (MIP) renewal rate of 0.50%. That gives you an effective annual growth rate of 6.50%.

Now, imagine your available loan amount after closing costs and calculations is $350,000. If you don’t use these funds right away, your line of credit will grow automatically month by month.

Here’s what that looks like:

Estimated Line of Credit Growth Over Time

Time PeriodEstimated Credit Line Value
Month 1 Growth$1,895.83
After 5 Years$516,399
After 10 Years$714,086

If funds are partially used, the growth applies only to the remaining unused balance. As long as some unused credit remains, growth continues. If interest rates increase in the future, the growth rate will increase as well, helping offset inflation over long retirement periods.

Bottom Line

The reverse mortgage line of credit is more than just a way to access home equity. It’s a financial planning tool that grows over time and gives you long-term flexibility. For many older homeowners, it offers the security and control that traditional loans can’t match.

Reverse Mortgage Line of Credit Compared to a Traditional HELOC

A reverse mortgage line of credit shares some surface similarities with a traditional home equity line of credit, but the structure is fundamentally different.

  • A reverse mortgage line of credit does not require monthly payments.
  • There is no balloon payment after a set term.
  • Income and credit score requirements are not used to qualify.
  • Access to funds is guaranteed under FHA rules.
  • Unused credit grows over time.

A traditional HELOC typically requires monthly payments, is subject to lender discretion, and does not include a growth feature.

Also See: Reverse Mortgage vs. HELOC and Home Equity Loans: Easier Qualifications and More Flexibility


2026 Reverse Mortgage Line of Credit vs. HELOC: Which Fits You?

FeatureReverse Mortgage Credit LineTraditional HELOC
Monthly Payments Needed?NoYes
Balloon Payment After 10 Years?NoYes
Hard to Qualify on Fixed Income?NoYes
Minimum Credit Score Required?NoYes
Adjustable Rate?YesYes
Guaranteed Growth Rate?YesNo
Prepayment Penalty?NoNo

Line of Credit FAQs

Q.

What is a HECM line of credit?

The HECM line of credit is the most popular method of allocating funds to a federally insured home equity conversion mortgage. The reverse mortgage line of credit is guaranteed for as long as you live in your home and maintain your property taxes and homeowners insurance. The line of credit is open-ended and revolving, allowing you to advance and repay funds at any time without penalty. You can make voluntary repayments if you choose or defer interest until you sell your home later.
Q.

Which is better, a home equity line of credit or a reverse mortgage?

The answer depends entirely on your individual needs. A home equity line of credit, commonly called a HELOC, is a short-term, interest-only loan you can apply for at most major banks. These equity loans are better suited for those equipped to make monthly repayments and understand that these loans recast after ten years into a balloon note. Additionally, HELOCs are not guaranteed and can be frozen or reduced at any time due to market volatility or declining property values. A reverse mortgage line of credit works in “reverse” and allows you to borrow money without the burden of mandatory monthly mortgage payments. A reverse mortgage is guaranteed for as long as you live in the home as your primary residence and maintain your taxes and insurance. The HECM line of credit can never be frozen or reduced due to market volatility and has the unique feature of any loan program, which is the line of credit growth rate.
Q.

How does a reverse mortgage line of credit grow?

The HECM reverse mortgage line of credit includes a built-in growth feature. The growth rate equals your current interest rate plus the FHA mortgage insurance premium (0.50% as of January 2026).
With today’s 5.00% interest rate, the combined growth rate is 5.50% per year.
Each month, this rate is applied only to the unused portion of your line of credit. As long as funds remain unused, your available credit increases automatically over time. If you take money out, future growth is based on the remaining unused amount.
Example: If you have $100,000 of unused credit, a 5.50% annual growth rate adds about $458 per month to your available line of credit, or $5,500 per year. This calculation is repeated monthly for as long as the loan remains active.
Q.

If you already have a reverse mortgage, can you get a Home Equity Line of Credit (HELOC)?

Yes and No. The federally insured HECM will allow for subordinate financing. However, finding a lending institution that would go behind a reverse mortgage is difficult due to its negative amortization.
Q.

How is the interest charged on a reverse mortgage line of credit?

The interest is charged on a reverse mortgage monthly and added to the outstanding balance. The formula for calculating interest is a simple interest formula. Interest Example: Customer has a HECM loan with an outstanding balance of $100,000 and a hypothetical interest rate of 5%. $100,000 x 0.050 = $5,000. $5,000/12 = $416.66 in interest added to the loan’s outstanding balance. Each month, this calculation is performed based on the outstanding loan balance.

Key Takeaways: Why the Reverse Mortgage Line of Credit Stands Out

  • Most Popular Option Thanks to its flexibility, the reverse mortgage line of credit is the most commonly chosen payment plan among borrowers.
  • Interest Only on What You Use Like a traditional Home Equity Line of Credit (HELOC), you only pay interest on the money you’ve actually borrowed, not on the total available credit.
  • Ideal for Retirees on Fixed Incomes With no monthly mortgage payments, no set repayment schedule, and no risk of lender call dates, this option is especially helpful for retirees looking for peace of mind.
  • Built-In Growth Over Time Any unused funds in your line of credit continue to grow monthly. This is known as the growth rate, and it gives you more available funds over time, helping you hedge against inflation.

Determining Whether This Option Fits Your Plans

The reverse mortgage line of credit is not designed to maximize cash upfront. It is designed to provide flexibility, preserve access to equity, and manage financial risk over time.

It tends to work best for homeowners who want optional access to funds, prefer to delay borrowing until needed, or want a long-term financial backstop rather than a one-time payout. Other homeowners may be better served by downsizing, using savings, or exploring alternative financing options.

Like any mortgage, a reverse mortgage is not appropriate for everyone. The decision should be based on timing, long-term plans, and a clear understanding of how the loan works.
Want to learn more? If you want to see how a reverse mortgage line of credit would work in your situation, you can get a personalized estimate with growth projections based on current rates. Our HECM line of credit calculator provides real numbers with no personal information required, or you can speak directly with one of our specialists at (800) 565-1722.
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