When consulting with those preparing to buy their first home in Bellevue, I often hear that the term "mortgage rates" feels unfamiliar.

If the terminology seems difficult, we can break it down into simpler terms. Let's take a closer look at how mortgage rates are determined and what the current levels are.

There are five main factors that determine mortgage rates.

• 10-year Treasury yield - The interest rate on bonds issued by the U.S. government with a 10-year maturity, which serves as a benchmark for long-term loan rates.
• Federal Reserve's benchmark rate - The policy interest rate set by the central bank.
• Inflation indicators - Figures that show how much prices are rising.
• MBS (Mortgage-Backed Securities) market - The market for bond products created by bundling mortgage loans.
• Personal credit score, DTI (debt-to-income ratio), down payment ratio.

In simpler terms, lenders set the final rate by adding their margin and risk on top of the benchmark Treasury yield. This is also why mortgage rates do not move in lockstep with changes in the Federal Reserve's rates; they tend to follow the long-term Treasury market more closely.

According to Freddie Mac PMMS data as of mid-2026, the average rate for a 30-year fixed mortgage is observed to be in the mid to high 6% range. The 15-year fixed rate is typically about 0.5 to 1 percentage point lower, as the risk to banks decreases with shorter loan terms. However, it's important to remember that a 15-year fixed mortgage requires higher monthly payments.

The term ARM (Adjustable Rate Mortgage) also comes up frequently. Simply put, this type of mortgage has a fixed rate for the first few years, after which the rate changes based on market conditions. If you plan to live in your home for only 5 or 7 years, you can take advantage of the initial lower rate, but if you plan to stay longer, you must be prepared for the risk of rising rates later on.

Your credit score also has a significant impact on your rate. Generally, if your score is above 760, you are likely to receive favorable rates, while scores in the 620 to 680 range tend to result in slightly higher rates under the same conditions. Since the exact numbers can vary by lender, it's advisable to get quotes from multiple places.

Bellevue has a high population of IT professionals, leading to a higher income level, but this also means that housing prices are elevated. The amount you prepare for your down payment can greatly affect your monthly repayment burden.

If you are a Korean household, it's best to start reducing your credit card usage to below 30% at least six months before applying for a loan and manage it without any delinquencies. Organizing your income verification documents and tax returns in advance can also make the approval process smoother.

While it's difficult to predict how rates will move in the future, they may adjust gradually based on economic indicators. Rather than making an immediate decision, it's better to find the right timing that suits your situation.