By Steven Hyde, Founder, Hyde Funding · NMLS #391380. Reviewed November 16, 2026. Hyde Funding is a mortgage lender headquartered in San Diego, lending nationwide since 2015.
Short answer: With an adjustable-rate HECM, the unused part of your reverse mortgage line of credit grows over time, so the less you borrow now, the more you can borrow later. The growth rate is tied to the loan’s interest rate plus the mortgage insurance premium. Growth is available only on adjustable-rate HECMs, not the fixed-rate lump-sum option.
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The CFPB discussion guide explains that whatever you don’t use keeps growing, up to the maximum stated in your mortgage. CFPB’s report to Congress adds that unused credit grows at the same rate as the interest plus mortgage insurance charged on the balance. It isn’t interest paid to you. It’s an increase in how much you’re allowed to borrow.
A growing line of credit works like a safety valve. You can set it up early, leave it alone and use it later for a big repair, in-home care, or to avoid selling investments in a down market. Interest accrues only on what you borrow, so an untouched line costs little after the upfront costs and any servicing fees.
Fixed-rate HECMs are generally a single lump sum at closing, with no line of credit and no growth. Adjustable-rate HECMs offer a line of credit, monthly payouts or both. See tenure vs term payments.
How much you can draw in the first year is limited. The CFPB guide notes that drawing more than 60 percent of your available funds in year one triggers a higher upfront mortgage insurance cost. The rest becomes available after the first year.
A HECM line of credit can’t be frozen or reduced because home values fall. That’s a key difference from a HELOC. Draws do stop if the loan becomes due, for example if you move out, and during a non-borrowing spouse’s deferral period. Compare the options in reverse mortgage vs HELOC.
Draw only what you need, when you need it. If you receive SSI or Medi-Cal, spend each draw in the month you take it (benefits guide). Partial repayments on an adjustable-rate HECM free up credit again (prepayment guide).
Whatever your question, these basics apply. A Home Equity Conversion Mortgage (HECM) is the FHA-insured reverse mortgage most homeowners use. The youngest borrower must be at least 62, the home must be your primary residence, and you need enough equity. Any existing mortgage is paid off at closing. Counseling with an independent HUD-approved counselor is required before you apply (HUD counselor search). The lender then reviews your income, credit and history of paying property charges.
No monthly mortgage payment is required. Interest and mortgage insurance are added to the loan balance, so it grows over time and your equity shrinks. You keep title, and you must keep paying property taxes, homeowners insurance and HOA dues and maintain the home. The loan is repaid when the last borrower, or an eligible non-borrowing spouse, sells, moves out permanently or passes away. A HECM is non-recourse: neither you nor your heirs will ever owe more than the home is worth when it is sold (CFPB). For higher-value homes, a proprietary jumbo reverse mortgage may be an option, but it isn’t FHA-insured and its terms differ. See how reverse mortgages work for a full walkthrough.
Bring this list to your HUD counseling session and to your call with Steven at (858) 775-1005.
Hyde Funding is a San Diego mortgage lender founded in 2015, with an office at 8996 Miramar Rd. Suite 250. Steven Hyde (NMLS #391380) will walk you through whether a growing line of credit fits your plan in plain English and compare HECM and proprietary reverse options. Your family or advisor is welcome on the call. Every HECM borrower first completes independent HUD-approved counseling (find a counselor on HUD.gov). Start with a free reverse mortgage consultation, read the reverse mortgage hub, or see reverse mortgages in San Diego.
Yes. On an adjustable-rate HECM, the unused portion grows at a rate tied to the loan’s interest rate plus the mortgage insurance premium.
Generally no. Fixed-rate HECMs are lump-sum loans with no credit line growth.
Not because home values drop. Draws do stop if the loan becomes due.
No. Interest and mortgage insurance apply only to what you’ve borrowed.
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Steven Hyde, NMLS #391380 (NMLS Consumer Access). Equal Housing Opportunity. Reverse mortgage borrowers must live in the home as their primary residence, keep paying property taxes, homeowners insurance and HOA dues, and maintain the home, or the loan may become due. The loan balance grows over time. HECMs are insured by FHA. Hyde Funding is not affiliated with HUD, FHA or any government agency. This is general information, not a commitment to lend. Consult a financial or tax advisor.