Do open-end mortgages cost more over the loan term?

It depends on what you’re comparing it to. The interest rate on an open-end mortgage might be higher or lower than the rate you’d get if you refinanced or took out a HELOC or home equity loan, for instance. Of course, if later on you choose to borrow more than what you used to buy your home, you’d also pay more to repay that, plus interest.

How can I find an open-end mortgage?

Open-end mortgages are very difficult to find, and they aren’t available in every state. To get one, you might need to work with a mortgage broker who specializes in this type of loan.

Open-ended mortgages: What are they and how do they work?

Written by

Kacie Goff,

Edited by

Laurie Richards,

Reviewed by

Thomas Brock, CFA, CPA,

Expert verified

Published on April 23, 2025 | 2 min read

Bankrate is always editorially independent. While we adhere to strict , this post may contain references to products from our partners. Here's an explanation for . Our is to ensure everything we publish is objective, accurate and trustworthy.

Key takeaways

An open-end mortgage provides financing to help you buy a home now and renovate it in the future.
Open-end mortgages work similarly to a home equity line of credit, but you can only use the drawn funds for upgrades to your property.
Few mortgage lenders offer open-end loans. There are other loan options that wrap the purchase and renovations into one mortgage, and other ways to pay for improvements in general.

What is an open-end mortgage?

With an open-end mortgage, you’ll first finance your home purchase, then borrow more over time, at your discretion, to renovate the property. In essence, you’re increasing your loan principal. This differs from a closed mortgage, which provides a set amount of funds and doesn’t allow you to borrow more.

How does an open-end mortgage work?

Like a home equity line of credit (HELOC), with an open-end mortgage, you’ll have a draw period, or window, to borrow more money, also known as “future advances.” Unlike a HELOC, however, this money can only be used to improve your home.

Whether you draw more funds or not, you’ll continue to pay principal and interest payments on the amount you used to buy the home.

Example of an open-end mortgage

Let’s say you were approved for an open-end mortgage for $500,000, and you buy a home for $440,000. You’ll begin repaying principal and interest on the $440,000. If you decide to draw on the remaining $60,000 ($20,000 to start, for instance), you’ll begin repaying that along with the payments you’ve been making. You’ll pay both in one monthly payment.

Open-end mortgage qualifications

Open-end mortgages are not available everywhere. If you’re able to find an open-end mortgage lender, you’ll need to get your finances in shape just like you would when you apply for a traditional mortgage. While requirements vary by lender, this might include:

A credit score of at least 620
A debt-to-income (DTI) ratio of no more than 43 percent
A down payment of at least 20 percent

Pros and cons of an open-end mortgage

Pros of an open-end mortgage

Finance a home purchase and renovations with one loan and one monthly payment
Only repay the mortgage and any extra you use
Avoid closing costs for two loans

Cons of an open-end mortgage

Difficult to find a lender that offers open-end loans, and some states don’t allow them
Can’t draw more than the maximum
Risk of borrowing more than what you can reasonably repay

Alternatives to an open-end mortgage

It can be hard to find an open-ended mortgage. If you need financing to buy and renovate a home, here are some other options:

Fannie Mae HomeStyle Renovation loan: A conventional loan for a home purchase plus renovations worth up to 75 percent of its after-improvement value
Freddie Mac CHOICERenovation loan: Another type of conventional loan for a home purchase plus renovations
FHA 203(k) loan: An FHA loan for a home purchase plus renovations costing either up to or beyond $35,000 (depending if you get a Limited or Standard 203(k) loan)
VA renovation loan: For eligible servicemembers and veterans, a VA loan for a home purchase plus renovations worth up to after-improvement value
USDA Section 504 Home Repair loan: For very low-income homeowners in eligible locations, a USDA loan for renovations up to $40,000
Home improvement loan: A personal loan for renovations, with amounts and rates varying by lender

What borrowers should know about open-ended mortgages today

Open-ended mortgages are really hard to find today, and they’re not available in every state.

“I don’t know a single lender that offers an open-ended mortgage,” says Melissa Cohn, regional vice president of William Raveis Mortgage. “It would be impossible to provide additional credit unless you know the value of the home will grow — like in a construction loan where the borrower provides the plans and the property is appraised at future value.”

For that reason, you might not even find an open-ended mortgage a worthy option to consider, since there are many other alternatives for both a home purchase and upgrades, such as HomeStyle or 203(k) renovation loans.

FAQ about open-end mortgages

It depends on what you’re comparing it to. The interest rate on an open-end mortgage might be higher or lower than the rate you’d get if you refinanced or took out a HELOC or home equity loan, for instance. Of course, if later on you choose to borrow more than what you used to buy your home, you’d also pay more to repay that, plus interest.
Open-end mortgages are very difficult to find, and they aren’t available in every state. To get one, you might need to work with a mortgage broker who specializes in this type of loan.