A couple preparing to buy their first home in Long Beach recently came in for a loan consultation. The first topic that came up while checking their pre-approval amount was the mortgage rate, and I explained each factor contributing to that number.

Mortgage rates are not arbitrary figures set by lenders. They are primarily based on the trends of the 10-year Treasury yield, along with the Federal Reserve's interest rate policy, inflation indicators, and investment demand in the MBS (mortgage-backed securities) market, which are adjusted slightly every day. I also explained that just because the Federal Reserve raises or lowers the benchmark interest rate, mortgage rates do not necessarily move in the same proportion.

Based on the estimate this couple received, as of the second half of 2026, the 30-year fixed mortgage rate was forming in the mid to high 6% range according to Freddie Mac PMMS. The 15-year fixed product was offered at 0.5 to 0.75 percentage points lower, around the low to mid 6% range, but this came with a higher monthly payment burden.

The couple also considered ARM products. ARMs offer lower rates for the initial 5 or 7 years compared to fixed-rate products, after which the rates adjust based on market indicators. I advised them that if they plan to stay in Long Beach for a long time, a fixed rate is more stable than the rate fluctuation risk of an ARM, but if they are considering selling or refinancing within 5 years, it might be worth looking into the benefits of the initial lower rate.

Factors influencing mortgage rates are summarized below:

• Direction of the 10-year Treasury yield
• Federal Reserve's benchmark interest rate and monetary policy signals
• Inflation indicators and price outlook
• Supply and demand in the MBS market
• Personal credit score, DTI, down payment ratio

The couple's credit scores were both around 740, but I emphasized that if their credit scores were in the low 700s or below, they could face rates that are more than 0.5 percentage points higher for the same loan product. I also discussed that preparing a down payment of over 20% would eliminate PMI, thereby lowering the actual monthly payment.

In Long Beach, there is a significant difference in housing prices between the Belmont Shore area and North Long Beach, so depending on the loan amount, it can either fall within the conforming loan limits or require a jumbo loan. Checking the loan limits in advance and understanding which range their target loan amount falls into can make the consultation much more efficient.

For Korean households, practical steps include lowering credit card usage rates and checking for any late payment records in advance, and for self-employed individuals, organizing tax documents to prepare income verification. Comparing estimates from multiple lenders can reveal meaningful differences in the actual rates applied.

It is difficult to predict which direction rates will move in the future, as it may depend on inflation and employment indicators. However, by first assessing their credit status and down payment readiness, they can be better prepared to respond regardless of how rates change.