First-Position HELOC: How It Works and the Risks

The short answer: A first-position HELOC is a home equity line of credit that sits in first lien position, so it replaces your existing mortgage instead of sitting behind it. You borrow and repay as you go during a draw period. It usually has a variable rate, the home is your collateral, and the lender can freeze or reduce the line in some cases. It is not right for everyone.

This post is for you if:

• You have heard about replacing your mortgage with a HELOC and want the real story.
• You want to understand the risks before you look at the benefits.
• You live in Nevada and want to know about foreclosure and recourse rules.

What is a first-position HELOC?

A home equity line of credit (HELOC) is revolving credit secured by your home. Unlike most purchase or refinance mortgages, it is open-end. The CFPB says that lets you borrow repeatedly against your home equity.

Lien position decides who gets paid first if something goes wrong. A second-lien HELOC sits behind your mortgage. A first-lien HELOC replaces your mortgage. That means the new line pays off your old loan, and the line is the only mortgage on the home.

You will hear big promises about this product online. Here is the full picture, including the parts that are easy to skip.

How does it work?

1. Draw period. You borrow, repay and borrow again up to your limit.
2. Repayment period. Draws stop and repayment begins. The CFPB says payments are often significantly higher, and some plans require a balloon payment of the whole balance.
3. Variable rate. The rate is generally an index plus a margin. Common indexes are the U.S. prime rate and SOFR.

Some products have a "sweep" feature that applies your deposited income to the balance. That is product-specific, and not every first-lien HELOC has it. Do not assume a feature. Ask for it in writing.

What are the risks?

• Your home is the collateral. If you cannot pay, you could lose it.
• The line can shrink. Lenders may freeze or reduce unused credit after a significant drop in home value or a material change in your finances.
• The rate can move. Variable rates change, so payments can too.
• Selling means payoff. If you sell, you generally must pay the HELOC in full immediately.
• Payments can jump. When the draw period ends, the monthly payment can be much higher.

None of that makes it a bad product. It makes it a product for borrowers who can manage a variable payment and understand the collateral risk.

What does it cost?

The CFPB lists possible charges such as an application fee and origination, appraisal, title or other closing costs. Exact fees vary by plan. HELOC applicants do not receive a standard Loan Estimate or Closing Disclosure. They should receive Truth in Lending disclosures that show the draw period, any repayment period, payment options and the plan's maximum rate.

Limits are plan-specific. There is no universal cap on a HELOC rate. Ask for the maximum rate in writing and for the full fee schedule. I do not quote rates in articles, and you should be careful with anyone who does without a same-day source.

Is the interest tax deductible?

Not automatically. The IRS ties potential deductibility to how you use the money. Interest on debt used to buy, build or substantially improve the home may qualify, within dollar limits. The IRS says interest on debt used for personal living expenses, such as credit cards, is not deductible. First-lien position does not change that. Ask your tax professional.

What should Nevada homeowners know?

Do not assume Nevada is blanket non-recourse. State law has narrow conditions. NRS 40.455(3) has a limited purchase-money exception, NRS 40.459 limits deficiency amounts, and NRS 40.4638 addresses certain junior liens. Whether any of that protects you depends on your loan, how you used the money, whether you live there and whether you refinanced. Talk to a Nevada attorney about your own file.

I also have not verified which lenders offer first-position HELOCs in Nevada today, or on what terms. Availability depends on the lender's matrix.

For related options, see my first-position HELOC page, cash-out refinance guide and the post on getting equity without refinancing.

Frequently asked questions

Sources

Last verified October 28, 2026. Programs, limits and fees change, so confirm the current numbers before you rely on them.

• CFPB: What is a HELOC?
• CFPB: HELOC booklet
• CFPB: HELOC fees
• CFPB: Second mortgage documents
• 12 CFR 1026.40, open-end plans (eCFR)
• Bankrate: First-lien HELOC (secondary source)
• IRS: Mortgage interest FAQ
• Nevada NRS Chapter 40

I am Fabion Medhanie, a retired U.S. Army Captain and mortgage broker in Las Vegas. This is education, not a rate quote or a loan approval. Your loan options depend on your full file.

Written by Fabion Medhanie, U.S. Army Retired, Mortgage Loan Originator, NMLS #2002997. MortgagePTSD powered by Barrett Financial Group, L.L.C., NMLS #181106. Educational content, not a commitment to lend.