When reviewing mortgage documents, you often come across the term DTI. Simply put, it refers to the percentage of your monthly income that goes toward paying off debt. According to the Consumer Financial Protection Bureau (CFPB), the backend DTI, which combines all debts, should be below 43% to qualify for a Qualified Mortgage, while the frontend DTI, which only considers costs related to the home price, is ideally below 28%. If you're looking for a home in Bellevue, it's a good idea to calculate these two numbers first.

Looking at Bellevue's home prices makes it clear why a down payment plan is important. According to Zillow, the recent median home value in Bellevue is around $1,296,767 (2026 data). Based on this number, a 3.5% down payment would be $43,587, 5% would be $64,838, 10% would be $129,677, and 20% would be $259,353. In order, there are three main items to check: first, how much you can put down; second, whether PMI will apply; and third, what your monthly payment will be.

If you put down less than 20%, PMI, or private mortgage insurance, will apply. To explain this simply, the lender sees it as a higher risk, so they charge an additional monthly fee in the form of insurance. If you put down 20% or more, this cost disappears. FHA loans are available with a credit score of 580 or higher starting at 3.5%, while a score between 500 and 579 requires a 10% down payment. Conventional loans can start at 3% for first-time homebuyers or those with an area median income of 80% or less, which is also good to remember if the terms are unfamiliar.

In Washington State, there is a down payment assistance program called Home Advantage, operated by the Washington State Housing Finance Commission (WSHFC). It provides about 4% of the loan amount as an interest-free second mortgage, which can be repaid over 30 years. Household income must not exceed $215,000, and you must complete a homebuyer education course recognized by WSHFC. This assistance helps reduce the initial cash burden and speeds up the preparation of funds rather than just increasing approval chances.

Among Korean families looking in Bellevue, many prioritize school districts as their first criterion. To explain simply, school ratings can be checked on sites like GreatSchools or Niche, but keep in mind that the boundaries for these ratings often change. Therefore, before making a purchase decision, be sure to verify which school your desired address is actually assigned to.

How you plan to secure your down payment funds is also a factor that will be reviewed during the application process. If you receive help from family, this is commonly referred to as a gift fund, and you will need to submit a gift letter and proof of the source of funds to be recognized. If a large amount suddenly appears in your account just before closing, it may actually prolong the verification process, so it's easier to organize your funds before applying. If you're coming from another state, it's safer to recalculate based on King County standards rather than applying the property tax sense from your previous location.

To summarize the items to check for increasing your approval rate: First, get pre-approved to confirm your budget range. Next, manage your credit score. As of July 2026, a score above 780 has an interest rate of 6.59%, in the 760s it's 6.66%, in the 740s it's 6.75%, and in the 700s it's 6.91% (Freddie Mac PMMS). Finally, include the effective property tax rate in King County, which is around 0.83%, in your monthly budget calculations. Avoid new loans or job changes before closing, and it's advisable to keep a few months' worth of reserves. This article is not investment or legal advice, and it's recommended to consult with a professional before making any actual contracts.