Reverse Mortgage Line of Credit: How the Growing LOC Works

A reverse mortgage line of credit lets you leave your loan proceeds in place, draw only what you need when you need it, and pay interest only on what you have actually taken. The part you leave untouched does not sit still. Under federal rule, the unused line grows every month at one-twelfth of the mortgage interest rate then in effect plus one-twelfth of the annual mortgage insurance rate, which means your borrowing capacity is larger next year than it is today.

That growth feature is the reason financial planners pay attention to this product at all, and it is also the feature most homeowners have never heard described accurately. So let me walk through what actually happens: how the line is sized, what makes it grow, how a draw works mechanically, what the first twelve months restrict, and what the growth is genuinely not.

This material is not from HUD or FHA and was not approved by HUD or a government agency. A reverse mortgage is a loan that must be repaid, not a government benefit. Program rules and figures are set by HUD and FHA, are current as of September 2026, and can change.

How a Reverse Mortgage Line of Credit Works

The line of credit is one of several ways to receive money from an FHA-insured HECM. Under 24 CFR 206.19, the line of credit payment option means payments are made by the lender to the borrower at times and in amounts determined by the borrower, subject to the disbursement limits. In other words, you decide when and how much, within the rules.

The starting size of the line is your principal limit, less anything set aside and less anything paid at closing. Your principal limit is driven by the age of the youngest borrower, the expected interest rate, and the lesser of your home value or the 2026 FHA maximum claim amount of $1,249,125. The how much can you borrow page walks the factor table and the closing costs that come off the top.

Here is the part that separates this from every other payout structure. Interest and mortgage insurance accrue on your outstanding loan balance, not on your principal limit. Money you have not drawn costs you nothing in interest. So a homeowner who opens a line and draws none of it has a balance near zero, an interest charge near zero, and a growing amount available to call on.

What Makes the Reverse Mortgage Line of Credit Grow

The growth is not a lender promotion and it is not a marketing feature. It is written into the definition of the principal limit at 24 CFR 206.3, which says the principal limit is calculated for the first month the mortgage could be outstanding using factors provided by the Commissioner, and that it increases each month thereafter at a rate equal to one-twelfth of the mortgage interest rate in effect at that time, plus one-twelfth of the annual mortgage insurance rate.

Two numbers, then. The mortgage interest rate on your note, and the annual mortgage insurance premium rate, which Mortgagee Letter 2017-12 set at one-half of one percent of the outstanding mortgage balance. Add them, divide by twelve, and that is your monthly growth rate, compounding.

24 CFR 206.25 then ties the line itself to that engine: the line of credit amount increases at the same rate as the total principal limit increases under section 206.3. HUD's own model HECM loan agreement repeats it in the contract you actually sign, and defines the principal limit as increasing each month for the life of the loan at a rate supplied by the Secretary and listed on your Payment Plan.

Because the note rate on an adjustable HECM resets, the growth rate moves too. It is not fixed and I cannot quote you a future number. To show the shape of the thing rather than a rate, assume purely for arithmetic that the combined compounding rate were 8 percent. The rule of 72 says an untouched line would take roughly nine years to double. That is an arithmetic illustration only, not a rate available to you and not a prediction. What you can rely on is the direction and the mechanism, which are federal.

Reverse Mortgage Line of Credit Draws: How You Actually Get the Money

People are often surprised that this part is deliberately plain. There is no card, no checkbook, and no automatic transfer. The model loan agreement sets out the process.

• You submit a written request. Your lender may specify a form for line of credit payment requests, and most servicers do.
• The money arrives within five business days. Line of credit payments shall be paid to the borrower within five business days after the lender has received a written request for payment. Plan around that window rather than treating the line as same-day cash.
• You choose how it is delivered. Borrowers elect either electronic funds transfer to a designated bank account or a check.
• You get a statement every time. After each draw the lender must provide a statement of the account showing the current interest rate, the previous principal balance, the amount of the current advance, the new principal balance, and the current principal limit. That last figure is how you watch the line grow without doing the math yourself.

There is no minimum draw and no requirement to use the line at all. A homeowner can open a line, draw nothing for six years, and take a first advance in year seven. Nothing expires.

The First Year Limit on a Reverse Mortgage Line of Credit

This is where expectations and reality most often part company. Your full line is not available on day one. Under 24 CFR 206.25, disbursements during the First 12-Month Disbursement Period may not exceed the Initial Disbursement Limit, which FHA currently sets at the greater of 60 percent of the principal limit, or your mandatory obligations plus an additional 10 percent of the principal limit. If a requested draw would exceed that limit, the lender may make a partial disbursement up to the limit.

Then the gate opens. Upon the conclusion of the First 12-Month Disbursement Period, the borrower may request subsequent disbursements up to the available principal limit. And the remainder was never idle in the meantime, because it grew along with everything else.

An illustration using a Bend home. Say the maximum claim amount is $750,000 and the principal limit works out to $311,250. If you own the home free and clear, the 60 percent branch of the test governs, so about $186,750 is reachable in year one and roughly $124,500 waits for month thirteen, larger by then than it is now. If instead you are paying off an existing mortgage, the second branch governs and you may reach well past 60 percent, because a payoff is a mandatory obligation. Those figures are illustrations, not quotes. Reverse mortgage rules covers the same cap from the borrower-obligation side.

Paying Down the Line and Drawing Again

You are never required to make a monthly mortgage payment on a reverse mortgage, but you are always allowed to. Under 24 CFR 206.209, the borrower may repay the mortgage in full or prepay in part without charge or penalty at any time, regardless of any limitation stated in the mortgage.

That matters more than it sounds, because of how availability is measured. After the first twelve months, and as long as the outstanding loan balance is less than the principal limit, 24 CFR 206.26 lets you request a disbursement of any amount up to the difference between the principal limit and the sum of your outstanding balance and any set-asides. Availability is a subtraction. Pay the balance down and the difference gets larger, so the credit becomes available again.

Inside the first twelve months the rule is tighter, and HUD closed the obvious loophole. The model loan agreement provides that if the borrower makes a payment toward the outstanding balance on the line during the First 12-Month Disbursement Period, the lender may make subsequent advances during the remainder of that period only to the extent the payment was applied to the outstanding principal balance. You can restore what you repaid. You cannot repay in order to draw past the year-one cap.

Note also that a voluntary prepayment is not the only thing that can move the principal limit. Section 206.209 says insurance or condemnation proceeds paid to the lender and not applied to restoring the property reduce both the principal limit and the outstanding balance. A large insurance settlement you pocket rather than rebuild with will shrink the line.

Modified Term and Modified Tenure: A Line Plus Monthly Income

You do not have to choose between a line of credit and monthly income. Section 206.19 provides for modified term and modified tenure options, under which equal monthly payments are made and the lender sets aside a portion of the principal limit to be drawn down as a line of credit. The amounts designated for the line and for the monthly payments grow independently, each at the same rate as the total principal limit.

Tenure means monthly payments continue for as long as you live in the home as your principal residence. Term means a fixed number of months you select, which produces a larger monthly figure over a shorter horizon. Pairing either with a line is how a lot of Central Oregon retirees actually use this: a predictable monthly amount to cover the gap in the budget, plus a reserve for the roof, the dental work, or the year the market is down.

You can also move between options later. Section 206.26 allows a borrower on an adjustable rate HECM, after the first twelve months and while the balance is below the principal limit, to request a recalculation or a change from any payment option to another available option. The model loan agreement puts it plainly: whenever the principal balance is less than the principal limit, the borrower may change from any payment option to another. The lender may charge a fee for a payment plan change or recalculation, capped at an amount HUD determines, and HUD may also set limits on how often you change.

Why a Fixed Rate Reverse Mortgage Has No Line of Credit

This is the single most consequential decision on the whole product, and it is easy to make by accident. The Single Lump Sum payment option is available only for fixed interest rate HECMs. There is no line, and there are no later draws.

The regulation is blunt about what that costs you. Although the principal limit of a fixed interest rate HECM will continue to increase at the rate provided by the Commissioner, no further funds may be made available for the borrower to draw against after closing. Your principal limit keeps growing on paper, and you can never reach any of it. Section 206.26 adds that borrowers on fixed rate HECMs may not request a change in payment option at all, so the choice is not reversible later.

A fixed rate lump sum genuinely suits one situation well: paying off a large existing mortgage where you want every dollar working immediately and a rate that will not move. For nearly anything else, and certainly for anyone whose reason is future flexibility, the adjustable rate line is the structure that does what people picture when they imagine a reverse mortgage. How a reverse mortgage works covers each option in sequence.

What Reverse Mortgage Line of Credit Growth Is Not

I want to be careful here, because this is the point where reverse mortgage marketing tends to overreach and where I would rather lose a client than mislead one.

The growing line is borrowing capacity, not an asset and not a return. Nothing is being deposited anywhere and you are not earning interest. What is growing is the maximum you are permitted to borrow against your own home, and every dollar you eventually draw accrues interest and mortgage insurance from the day it leaves. If you draw money and let it sit in a savings account, you have traded a growing credit line for a bank balance and are paying for the privilege. That is the argument against drawing simply because you can.

The growth rate is also not locked. It tracks the note rate in effect at the time, so a period of higher rates grows the line faster while making draws more expensive, and lower rates do the reverse. And the line is not entirely unconditional. Unlike a bank line, your lender cannot reduce or cancel it because home values moved or their appetite changed, which reverse mortgage vs HELOC compares in detail. But access does depend on the loan not becoming due and payable, which means continuing to pay property taxes, homeowners insurance, and any HOA dues, maintaining the home, and occupying it as your principal residence. There is one narrower rule worth knowing too: section 206.26 provides that if repairs required by the mortgage are not completed when required, monthly payments stop, the mortgage converts to the line of credit option, and the lender makes no line of credit disbursements except as needed to pay for those repairs.

If any of that reads as a reason to slow down, good. The downside of a reverse mortgage is the piece I hand people who want the honest counterweight, and every borrower has to complete a session with a HUD-approved counselor before closing anyway. Reverse mortgage counseling explains what that session covers.

Set-Asides That Shrink the Line You Can Spend

Two set-asides can carve into the line before you ever draw from it, and both are worth knowing about in advance rather than at closing.

A life expectancy set-aside, required when the financial assessment shows a history of missed property taxes or lapsed insurance, reserves part of the principal limit so the lender pays those charges for you. It is a protection rather than a fee, but it reduces spendable line, sometimes substantially. Reverse mortgage requirements covers when the assessment triggers one. A servicing fee set-aside, if your lender charges one, is likewise not available to you for any purpose except paying loan servicing.

Set-asides also work in your favor once they are done with. If repairs after closing are completed without using all of the repair set-aside, section 206.26 requires the lender to transfer the remaining amount to your line of credit, modified term, or modified tenure option and inform you of the sum available to draw. Money set aside for a repair that came in under budget comes back to you as credit.

A Reverse Mortgage Line of Credit in Bend and Central Oregon

The rules above are federal and identical in every state. What is local is the equity the line is drawn against, and Central Oregon has had an unusual decade. The median home value in Bend now sits in the mid-$700,000s, well over double where it stood ten years ago. That kind of appreciation is exactly what makes a standby line worth considering, because the equity exists whether or not you touch it.

Values vary sharply by community, which changes the size of the line more than anything else in the calculation. In the August 2026 Beacon Report, compiled from MLS of Central Oregon data for July, the median single family price was $885,000 in Sunriver, $753,000 in Sisters, $430,000 in Crook County, $396,000 in La Pine, and $352,000 in Jefferson County. A Sunriver homeowner and a La Pine homeowner of the same age are looking at very different lines from the same program.

One local pattern I see often. A homeowner in their late sixties with no mortgage, a Bend house that has appreciated hard, and a healthy but not enormous retirement account. They do not need money today. What they want is to not sell investments in a bad year, and to not call a child when the furnace fails in February. Opening a line early, drawing nothing, and letting it grow is the plainest version of that plan. If your home is worth more than the FHA maximum claim amount, proprietary options reach higher, and if you would rather keep a low first mortgage untouched, a reverse second mortgage is the structure to look at instead.

The Bend reverse mortgage guide covers the local picture, reverse mortgage in Oregon covers the statewide rules, age requirements explains why the youngest borrower drives the number, and the full lineup including HECM for Purchase sits on the reverse mortgage programs page. To put rough numbers on your own situation first, start with the reverse mortgage calculator.

Reverse Mortgage Line of Credit: Frequently Asked Questions