How Do Interest Rates Work When Building a Home? (2025)

How Do Interest Rates Work When Building a Home?

How Do Interest Rates Work When Building a Home? (1)

Building a home is a big commitment, and interest costs can play a major factor in deciding if and how much to build. We’re often asked about how exactly interest rates work when building a home.

Construction – A Two-step Process

Generally, home construction is a two-step loan process: you will have a construction loan for financing the construction costs and a permanent loan financing the home itself. Each loan will have its own interest rate.

During the construction phase, you will typically be responsible for interest-only payments calculated on the amount of the construction line advanced at that time. During the permanent phase, you will be paying principal and interest based on the full loan amount.

Your banker will provide you with information regarding which type of permanent financing (fixed-rate or adjustable-rate) makes the most sense for your situation.

Many borrowers want to lock in an interest rate on their permanent loan. In many instances this is possible as early as nine months prior to project completion. Your banker will spend time talking about long term rate lock options and what may make the most sense for you. Payments will vary depending on what you choose.

Your American Federal Banker will answer your questions to ensure that you know you’re making the best decisions for your situation.

Selecting a Contractor

When building a home, one of the first and most important decisions you will make is selecting your general contractor. The contractor is the person (or company) that will keep your project moving and work with you throughout the building process. The following are some questions to consider or actions to take when weighing your options:

  • Do they finance the construction, or do you have to? If they do, you may be able to have a lower down payment requirement with the bank. This is often referred to as a turn-key purchase.
  • If you are responsible for the construction financing, ask if there are discounts available for you carrying the interest expense during the building phase.
  • What are the down payment and/or earnest money requirements with the contractor?
  • How many years of experience do they have? Do they have referrals? Consider touring some of their previous builds.
  • Negotiate finish-on-time penalties. Many general contractors will guarantee a close-by or finish-by date. If they are not met, the contractor is responsible to pay the borrower a pre-determined amount.

We’re Here to Help!

If you’re interested in learning more about home construction loans, or any other mortgage products, contact your American Federal Banker.

Contact A Banker Today!

How Do Interest Rates Work When Building a Home? (2025)

FAQs

How Do Interest Rates Work When Building a Home? ›

Each loan will have its own interest rate. During the construction phase, you will typically be responsible for interest-only payments calculated on the amount of the construction line advanced at that time. During the permanent phase, you will be paying principal and interest based on the full loan amount.

How is interest during construction paid? ›

Interest during construction is a key issue in funding a project that will not generate cash flow while its assets are being built. The most usual way it is managed is to add the interest on to the amount borrowed; the interest will therefore compound during the build period.

How to calculate interest during construction? ›

Multiply the average amount of the loan during the time it takes to complete the building of the asset by the interest rate and the development time in years. Subtract any investment income that pertains to the interim investment of the borrowed funds.

How is construction loan interest calculated? ›

You can calculate an approximate interest-only payment in the following way: Multiply the dollar amount advanced on the loan by the interest rate expressed as a decimal, and then divide that amount by 12.

Can you lock in an interest rate when building a house? ›

How a 12-month rate lock protects you. A Consumers construction loan locks in your interest rate at the time of application for up to 12 months. Even if rates rise while you're building your new home, you'll get the lower rate. It's one way you can protect yourself against inflation for an entire year.

How do interest rates work when building a house? ›

Each loan will have its own interest rate. During the construction phase, you will typically be responsible for interest-only payments calculated on the amount of the construction line advanced at that time. During the permanent phase, you will be paying principal and interest based on the full loan amount.

How to build a house while paying a mortgage? ›

How to finance a home build with an existing mortgage
  1. Avoid taking out a conventional mortgage on your own.
  2. Instead, obtain a construction-to-permanent loan.
  3. Go with a lender that specializes in home building.
  4. Find a the right loan for your home build.
  5. Opt for an end-to-end solution.
Nov 30, 2023

What is the interest rate reserve on a construction loan? ›

An interest reserve is a portion of a construction loan set aside to cover interest payments during the development phase. This reserve is calculated based on the construction duration, loan amount, and interest rate, and is included in the total loan.

Can you claim interest on a construction loan? ›

Once the construction is complete, you can deduct the mortgage interest on the loan used to finance the construction, as well as property taxes paid on the home.

Is interest during construction depreciated? ›

Constructing Business (Rental) Property

But you may not deduct the interest you pay during the construction period. Instead, this cost must be added to the basis of your property and depreciated over 27.5 years (the depreciation period for residential rental property). (I.R.C.

Are construction loan rates higher than mortgage rates? ›

According to Kadish, construction loan rates are usually about 1 percentage point higher than traditional term mortgages. So, at today's average rates, you could expect to pay 8% or more for a construction loan, depending on your credit score and other factors.

Are construction loan payments interest only? ›

During the construction phase, you'll make interest-only payments, and your lender will schedule home inspections to check in on how the home construction is progressing. After closing, you use the remaining savings from your down payment to pay your builder so they can begin construction.

What is the construction loan ratio? ›

Lenders typically require 45% or lower when issuing construction loans. A higher ratio may be possible if the borrower has strong finances.

How to get a lower mortgage rate on new construction? ›

Most home builders work with preferred lenders or have in-house mortgage companies, which allow them the flexibility of offering interest rate buydowns to their home buyers. The most common types of interest rate buydowns are a temporary rate buydown and a permanent rate buydown sometimes called paying discount points.

What if rates drop after I lock? ›

If interest rates go up after you've locked in your rate, you get to keep the lower rate. On the other hand, if you lock your rate and interest rates fall, you can't take advantage of the lower rate unless your rate lock includes a float-down option.

Can you lower your interest rate on a house? ›

If you're in a better financial situation than you were when you first signed your loan, you could potentially negotiate your fixed-rate mortgage to a lower interest rate. This option is particularly feasible for people whose credit scores have increased or if rates have decreased.

Who pays the interest during the construction period on a construction loan? ›

(During the construction loan phase, your lender disburses the funds based upon the percentage of the project completed, and you're only responsible for interest payments on the money drawn).

Is interest paid during construction capitalized? ›

Construction interest that is incurred on the construction of a structure intended for rental or business use is not deductible at the time that it is paid. This type of interest is added to the cost basis of the asset instead. For this reason, it is also known as capitalized interest.

How does interest get paid? ›

A bank essentially borrows money from their depositors by using the deposited funds to lend money to other customers. In turn, the bank pays the depositor interest for their savings account balance while simultaneously charging their loan customers a higher interest rate than what was paid to their depositors.

How does an interest reserve work on a construction loan? ›

The interest reserve account allows a lender to periodically advance loan funds to pay interest charges on the outstanding balance of the loan. The interest is capitalized and added to the loan balance.

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