FHA Adjustable Rate Mortgages in 2021
February 21, 2021
The Index Changes
Lenders use a specific market index off of which an ARM’s interest rates are based. Until recently, most financial institutions, including the FHA, were using the London Inter-bank Offered Rate (LIBOR), but it was decided that effective January 3, 2022, the mortgage industry will put aside LIBOR and adopt the Secured Overnight Funding Rate (SOFR). The U.S. Federal Reserve Board and New York Federal Reserve are set to oversee the transition from LIBOR to SOFR, and have recommended that most new ARMs use SOFR instead of LIBOR beginning in September, 2020.
Why Does This Matter?
To understand why this change matters, you must know how an ARM works. The interest rate you get with an ARM is based on an index and a margin (which is disclosed when you apply for the loan). Your adjustable rate is calculated by adding the loan margin to the index, so as the index figure changes, so will your interest rate.
With the implementation of a new index, the changing rates of ARMs may start to look different. While both LIBOR and SOFR are used to measure the cost of short-term borrowing, the indexes measure that cost differently. Greg McBride, chief financial analyst at Bankrate states that, “SOFR is based on actual market transactions whereas LIBOR was determined by what various banks would charge each other to borrow on an overnight basis.” When it became clear that certain banks were able to manipulate the LIBOR rate, SOFR was created to be a more accurate and reliable index that is less susceptible to such manipulation.
While the majority of borrowers and loan applicants will not be affected by the new mandate, those with adjustable- rate mortgages, a home equity loan, or a reverse mortgage might see changes to their loan depending on how it is indexed.
McBride states that ARMS based on LIBOR will no longer be purchased by Fannie Mae and Freddie Mac. "SOFR is rapidly replacing it. Treasury-indexed ARMs are unaffected.”
Next Steps
It is important for borrowers to be in the know, and stay on top changes in their interest rate. While it is expected that the changes will relatively minor, mortgage holders with an ARM should contact their loan servicers to see which index their mortgage is based on, to avoid being caught off guard with the next adjustment. If the loan is tied to LIBOR, lenders can help identify when it will switch to SOFR and what that change could mean for the particular ARM.
------------------------------
RELATED VIDEOS:
Disclosures Give Transparency to Borrowers
Understanding the Purpose of Your Mortgage Down Payment
Putting Money Into Your Escrow Account

FHA Loan Articles
March 11, 2025Adding a co-borrower to your FHA is a way to offset fears that you won't qualify for the mortgage on your own. An FHA loan co-borrower with a more substantial financial profile may offset the primary borrower's weaknesses, demonstrating a reduced risk to the lender. But for an FHA loan, don't assume that one borrower with good credit scores can offset one with non-qualifying scores. We ask 20 questions about co-borrowing to help you better plan for your FHA loan.
March 10, 2025Even if you aren’t considering your home loan options right this second, it’s smart to know your options if you decide to pursue a new home later. To that end, using a mortgage calculator is a smart choice for setting some basic budgeting parameters as you plan your path toward home ownership. A mortgage calculator helps you plan for future financial scenarios, such as buying new or refinancing a current home.
February 27, 2025 Buying your first home can feel overwhelming, especially when you start hearing terms like "subprime mortgages" and "FHA loans." Understanding these options is crucial for making the right decision. Subprime mortgages are designed for borrowers with less-than-perfect credit histories. This might include past issues like late payments, loan defaults, or even bankruptcy...
February 26, 2025Buying your first home can be exciting, but the mortgage process often throws a curveball of unfamiliar terms. Here are answers to common questions first-time homebuyers have about mortgage jargon and terms.
February 18, 2025Mortgages typically require mortgage insurance and homeowners insurance. They are both key parts of your home loan but they serve very different functions. Do you know the differences between the two? Find out how ready you are to begin the process of buying your new house.