Guide

The first-lien HELOC, explained

A first-lien HELOC is a home equity line of credit that sits in the first position on your property — it replaces your traditional mortgage instead of stacking behind it. This guide covers how it works, why some homeowners and investors use it, and the risks to weigh before you switch.

What is a first-lien HELOC?

Most HELOCs are second liens: you keep your mortgage and borrow against leftover equity. A first-lien HELOC pays off the existing mortgage and becomes the primary loan on the property. Instead of a fixed monthly payment on an amortization schedule, you have a revolving line you can pay down and draw from again.

How the strategy works

The approach Pat Grace uses comes down to two steps:

• Replace the mortgage with a line of credit, so the balance can go down — and come back up — as your cash moves.
• Run your income and expenses through the line. Paychecks or rents land on the balance right away, lowering the amount interest is charged on, and bills are paid from the line as they come due.

Because interest is calculated as simple interest on the declining daily balance, every dollar that sits on the line — even for a few weeks — reduces what you owe. As Pat puts it: it’s not about the rate, it’s about the structure.

Potential benefits

• Equity stays accessible instead of being locked inside the property.
• No front-loaded interest schedule — payments reduce principal from day one.
• Idle cash works against the balance rather than sitting in a low-yield account.
• One account ties together income, expenses, and debt payoff.

Risks and trade-offs

• Lines of credit are typically variable-rate, so payments and total interest can change over time.
• It requires discipline — if spending regularly exceeds income, the balance can grow instead of shrink.
• There is no fixed set-it-and-forget-it payment.
• Approval is subject to credit and underwriting, and program terms vary.

Who a first-lien HELOC fits

It tends to work best for people with equity (home, rentals, commercial property, or other qualifying assets), steady income or rent, and a habit of spending less than they earn. It is a poor fit if you want a fixed payment or are uncomfortable with a variable rate.

A real example

Pat used this structure on 511 Delaware St in Kansas City: he paid off $300,000 in 10 months with roughly $5,000 in interest, and the line stayed open afterward. See the full story and an illustrative side-by-side comparison on the homepage, or run your own numbers in the payoff calculator (opens in a new tab).

This guide is educational and is not a commitment to lend or personalized financial, tax, or legal advice. Results vary; examples are illustrative.